MAAP #54: Natural forest loss due to “hurricane winds” in the Peruvian Amazon

Image 54. Base Map

A little-known, but not uncommon, type of natural forest loss in the Peruvian Amazon is blowdown due to strong winds from localized storms (locally known as “hurricane winds”).

The intense winds cause a chain reaction of fallen trees, resulting in a fan-shaped pattern of forest loss with a defined orientation following the direction of the storm winds.

This phenomenon has previously been reported in Brazil and Colombia (see References below).

The base image (Image 54) shows the location of some recent (during 2016) examples of forest loss due to blowdowns in the Peruvian Amazon.

These examples were initially detected from analysis of GLAD alerts, early warning tree loss data produced by the University of Maryland (see Annex).

Below, we detail the 7 blowdown examples indicated on the base map. They are located in both northern (Loreto region) and southern (Madre de Dios region) Peru, and include 4 Protected Areas. The forest loss in these examples ranged from 24 to 900 hectares.

 

 

 

Loreto Examples

This section highlights 3 examples of blowdowns in Loreto. In each example, we show an image of before (left panel) and after (right panel) the forest loss due to the winds. The documented forest loss in these areas includes: 912 hectares in Example A, 124 hectares in Example B (Ampiyacu Apayacu Regional Conservation Area), and 357 hectares in Example C.

Image 54a. Data: Planet.
Image 54b. Data: Planet. Note: Blowdown in Ampiyacu Apayacu RCA, not Maijuna.

 

 

Image 54c. Data: Planet.

Madre de Dios Examples

This section highlights 4 examples of blowdowns in Madre de Dios. In each example, we show an image of before (left panel) and after (right panel) the forest loss due to the winds. The documented forest loss in these areas includes: 73 hectares in Example D (Manu National Park), 77 hectares in Example E, 93 hectares in Example F (Bahuaja Sonene National Park), and 24 hectares in Example G (Tambopata National Reserve).

Image 54d. Data: Planet.
Image 54e. Data: Planet.

 

Image 54f. Data: Planet.

 

Image 54g. Data: Planet.

Annex

This last image shows how the tree loss patterns from blowdowns appear in the GLAD alerts.

Coordinates

A.      -1.386944, -73.679444
B.      -3.029722, -72.786666
C.      -3.456111, -76.713333
F.       -13.294722, -69.295833

References

Planet Team (2017). Planet Application Program Interface: In Space for Life on Earth. San Francisco, CA. https://api.planet.com

Espırito-Santo, F. D. B. et al. Storm intensity and old-growth forest disturbances in the Amazon region. Geophys. Res. Lett. 37, L11403 (2010).

Nelson, B. W. et al. Forest disturbance by large blowdowns in the Brazilian Amazon. Ecology 75, 853–858 (1994).

Garstang, M., White, S., Shugart, H. H. & Halverson, J. Convective cloud downdrafts as the cause of large blowdowns in the Amazon rainforest. Meteorol. Atmos. Phys. 67, 199–212 (1998).

Etter y Botero (1990) Efectos de los procesos climáticos y geomorfológicos en la dinámica del Bosque Húmedo Tropical de la Amazonía Colombiana. Colombia Amazonica 4:7.

Citation

Novoa S, Finer M (2017) Natural forest loss due to “hurricane winds” in the Peruvian Amazon. MAAP: 54.

MAAP SYNTHESIS #2: PATTERNS AND DRIVERS OF DEFORESTATION IN THE PERUVIAN AMAZON

We present our second synthesis report, building off our first report published in September 2015. This synthesis is largely based on the 50 MAAP reports published between April 2015 and November 2016. The objective is to synthesize all the information to date regarding deforestation trends, patterns and drivers in the Peruvian Amazon.

MAAP methodology includes 4 major components: Forest loss detection, Prioritize big data, Identify deforestation drivers, and Publish user-friendly reports. See Methodology section below for more details.

Our major findings include:

  • Trends. During the 15 years between 2001 and 2015, around 4,448,000 acres (1,800,000 hectares) of Peruvian Amazon forest has been cleared, with a steadily increasing trend. 2014 had the highest annual forest loss on record (438,775 acres), followed by a slight decrease  in 2015. The preliminary estimate for 2016 indicates that forest loss remains relatively high. The vast majority (80%) of forest loss events in the Peruvian Amazon are small-scale (<5 hectares), while large-scale events (> 50 hectares) pose a latent threat due to new agro-industrial projects.
  • Hotspots. We have identified at least 8 major deforestation hotspots. The most intense hotspots are located in the central Amazon (Huánuco and Ucayali). Other important hotspots are located in Madre de Dios and San Martin. Two protected areas (Tambopata National Reserve and El Sira Communal Reserve) are threatened by these hotspots.
  • Drivers. We present an initial deforestation drivers map for the Peruvian Amazon. Analyzing high-resolution satellite imagery, we have documented six major drivers of deforestation and degradation: small/medium-scale agriculture, large-scale agriculture, cattle pasture, gold mining, illegal coca cultivation, and roads. Small-scale agriculture and cattle pasture are likely the most dominant drivers overall. Gold mining is a major driver in southern Peru. Large-scale agriculture and major new roads are latent threats. Logging roads are likely a major source of forest degradation in central Peru.

Deforestation Trends

Image 1 shows forest loss trends in the Peruvian Amazon from 2001 to 2015, including a breakdown of the size of the forest loss events. This includes the official data from the Peruvian Environment Ministry, except for 2016, which is a preliminary estimate based on GLAD forest loss alerts.

Image 1. Data: PNCB/MINAM, UMD/GLAD. *Estimate based on GLAD alerts.

During the 15 years between 2001 and 2015, around 4,448,000 acres (1,800,000 hectares) of Peruvian Amazon forest has been cleared (see green line). This represents a loss of approximately 2.5% of the existing forest as of 2001.There have been peaks in 2005, 2009, and 2014, with an overall increasing trend. In fact, 2014 had the highest annual forest loss on record (386,626 acres). Forest loss decreased in 2015 (386,732 acres), but is still the second highest recorded. The preliminary estimate for 2016 indicates that forest loss continues to be relatively high.

It is important to note that the data include natural forest loss events (such as storms, landslides, and river meanders), but overall serves as our best proxy for anthropogenic deforestation. The non-anthropogenic forest loss is estimated to be approximately 3.5% of the total.1

The vast majority (81%) of forest loss events in the Peruvian Amazon are small-scale (<5 hectares, equivalent of 12 acres), see the yellow line. Around 16% of the forest loss events are medium-scale (5-50 hectares, equivalent of 12-124 acres), see the orange line. Large-scale (>50 hectares, equivalent of 124 acres) forest loss events, often associated with industrial agriculture, pose a latent threat. Although the average is only 2%, large-scale forest loss rapidly spiked to 8% in 2013 due to activities linked with a pair of new oil palm and cacao plantations. See MAAP #32 for more details on the patterns of sizes of deforestation events.

Deforestation Patterns

Image 2 shows the major deforestation hotspots in 2012-14 (left panel) relative to 2015-16 (right panel), based on a kernel density analysis.We have identified at least 8 major deforestation hotspots, labeled as Hotspots A-H.

Image 2. Data: PNCB/MINAM, GLAD/UMD. Click to enlarge.

The most intense hotspots, A and B, are located in the central Amazon. Hotspot A, in northwest Ucayali, was dominated by two large-scale oil palm projects in 2012-14, but then shifted a bit to the west in 2015-16, where it was dominated by cattle pasture and small-scale oil palm. Hotspot B, in eastern Huánuco, is dominated by cattle pasture (MAAP #26).

Hotspots C and D are in the Madre de Dios region in the southern Amazon. Hotspot C indicates the primary illegal gold mining front in recent years (MAAP #50). Hotspot D highlights the emerging deforestation zone along the Interoceanic Highway, particularly around the town of Iberia (MAAP #28).

Hotspots E-H are agriculture related. Hotspot E indicates the rapid deforestation for a large-scale cacao plantation in 2013-14, with a sharp decrease in forest loss 2015-16 (MAAP #35). Hotspot F indicates the expanding deforestation around two large-scale oil palm plantation (MAAP #41). Hotspot G indicates the intensifying deforestation for small-scale oil palm plantations (MAAP #48).

Hotspot H indicates an area impacted by intense wildfires in 2016.

Protected Areas, in general, are effective barriers against deforestation (MAAP #11). However, several protected areas are currently threatened, most notably Tambopata National Reserve (Hotspot C; MAAP #46). and El Sira Communal Reserve (Hotspot B; MAAP #45).

Deforestation Drivers

Image 3. Data: MAAP, SERNANP. Click to enlarge.

Surprisingly, there is a striking lack of precise information about the actual drivers of deforestation in the Peruvian Amazon. According to an important paper published in 2016, much of the existing information is vague and outdated, and is based solely on a general analysis of the size of deforestation events.3  

As noted above, one of the major advances of MAAP has been using high-resolution imagery to better identify deforestation drivers.

Image 3 shows the major deforestation drivers identified thus far by our analysis. As far as we know, it represents the first spatially explicit deforestation drivers map for the Peruvian Amazon.

To date, we have documented six major direct drivers of deforestation and degradation in the Peruvian Amazon: small/medium-scale agriculture, large-scale agriculture, cattle pasture, gold mining, illegal coca cultivation, and roads.

At the moment, we do not consider the hydrocarbon (oil and gas) and hydroelectric dam sectors as major drivers in Peru, but this could change in the future if proposed projects move forward.

We describe these major drivers of deforestation and degradation in greater detail below.

Small/Medium-scale Agriculture

The literature emphasizes that small-scale agriculture is the leading cause of deforestation in the Peruvian Amazon.However, there is little actual empirical evidence demonstrating that this is true.3 The raw deforestation data is dominated by small-scale clearings that are most likely for agriculture or cattle pasture. Thus, it is likely that small-scale agriculture is a major driver, but a definitive study utilizing high-resolution imagery and/or extensive field work is still needed to verify the assumption.

In several key case studies, we have shown specific examples of small-scale agriculture being a deforestation driver. For example, using a combination of high-resolution imagery, photos from the field, and local sources, we have determined that:

  • Oil Palm, in the form of small and medium-scale plantations, is one of the main drivers within deforestation Hotspot B (Ucayali; MAAP #26), Hotspot G (northern Huánuco; MAAP #48), and Hotspot F (Loreto-San Martin;MAAP #16). This was also shown for Ucayali in a recent peer-reviewed study.4 See below for information about large-scale oil palm.
  • Cacao is causing rapid deforestation along the Las Piedras River in eastern Madre de Dios (MAAP #23, MAAP #40). See below for information about large-scale cacao.
  • Papaya is an important new driver in Hotspot D, along the Interoceanic Higway in eastern Madre de Dios (MAAP #42).
  • Corn and rice plantations may also be an important driver in Hotspot D in eastern Madre de Dios (MAAP #28).

Large-scale Agriculture

Large-scale, agro-industrial deforestation remains a latent threat in Peru, particularly in the central and northern Amazon regions. This issue was put on high alert in 2013, with two cases of large-scale deforestation for oil palm and cacao plantations, respectively.

In the oil palm case, two companies that are part of the Melka group,5 cleared nearly 29,650 acres in Hotspot A in Ucayali between 2012 and 2015 (MAAP #4, MAAP #41). In the cacao case, another company in the Melka group (United Cacao) cleared 5,880 acres in Hotspot E in Loreto between 2013 and 2015 (MAAP #9, MAAP #13, MAAP #27, MAAP #35). Dennis Melka has explicitly stated that his goal is to bring the agro-industrial production model common in Southeast Asia to the Peruvian Amazon.6

Prior to these cases, large-scale agricultural deforestation occurred between 2007 and 2011, when oil palm companies owned by Grupo Palmas7 cleared nearly 17,300 acres for plantations in Hotspot H along the Loreto-San Martin border (MAAP #16). Importantly, we documented the additional deforestation of 24,215 acres for oil palm plantations surrounding the Grupo Palmas projects (MAAP #16).

In contrast, large-scale agricultural deforestation was minimal in 2015 and 2016. However, as noted above, it remains a latent threat. Both United Cacao and Grupo Palmas have expansion plans that would clear over 49,420 acres of primary forest in Loreto.8

Cattle Pasture

Using an archive of satellite imagery, we documented that deforestation for cattle pasture is a major issue in the central Peruvian Amazon. Immediately following a deforestation event, the scene of hundreds or thousands of recently cut trees often looks the same whether the cause is agriculture or cattle pasture. However, by using an archive of imagery and studying deforestation events from previous years, one can more easily determine the drivers of the forest loss. For example, after a year or two, agriculture and cattle pasture appear very differently in the imagery and thus it is possible to distinguish these two drivers.

Using this technique, we determined that cattle pasture is a major driver in Hotspots A and B, in the central Peruvian Amazon (MAAP #26, MAAP #37).

We also used this technique to determine that much of the deforestation in the northern section of El Sira Communal Reserve is due to cattle pasture (MAAP #45).

Maintenance of cattle pasture, and small-scale agriculture, are likely important factors behind the escaped fires that degrade the Amazon during intense dry seasons (MAAP #45, MAAP #47).

Gold Mining

Gold mining is one of the major drivers of deforestation in the southern Peruvian Amazon (Hotspot C). An important study found that gold mining cleared around 123,550 acres up through 2012.9 We built off this work, and by analyzing hundreds of high resolution imageres, found that gold mining caused the loss of an additional 30,890 acres between 2013 and 2016 (MAAP #50). Thus, gold mining is thus far responsible for the total loss of around 154,440 acres in southern Peru. Much of the most recent deforestation is illegal due to its occurrence in protected areas and buffer zones strictly off-limits to mining activities.

Most notably, we have closely tracked the illegal gold mining invasion of Tambopata National Reserve, an important protected area in the Madre de Dios region with renowned biodiversity and ecotourism. The initial invasion occurred in November 2015 (MAAP #21), and has steadily expanded to over 1,110 acres (MAAP #24, MAAP #30, MAAP #46). As part of this invasion, miners have modified the natural course of the Malinowski River, which forms the natural northern border of the reserve (MAAP #33). In addition, illegal gold mining deforestation continues to expand within the reserve’s buffer zone, particularly in an area known as La Pampa (MAAP #12, MAAP #31).

Further upstream, illegal gold mining is also expanding on the upper Malinowski River, within the buffer zone of Bahuaja Sonene National Park (MAAP #19, MAAP #43).

In contrast to the escalating situation in Tambopata, we also documented that gold mining deforestation has been contained in the nearby Amarakaeri Communal Reserve, an important protected area that is co-managed by indigenous communities and Peru’s national protected areas agency. Following an initial invasion of 27 acres in 2014 and early 2015, satellite imagery shows that management efforts have prevented any subsequent expansion within the protected area (MAAP #6, MAAP #44).

In addition to the above cases in Madre de Dios, gold mining deforestation is also increasingly an issue in the adjacent regions of Cusco and Puno (MAAP #14).

There are several small, but potentially emerging, gold mining frontiers in the central and northern Peruvian Amazon (MAAP #49). The Peruvian government has been working to contain the illegal gold mining in the El Sira Communal Reserve (MAAP #45). Further north in Amazonas region, there is gold mining deforestation along the Rio Santiago (MAAP #36, MAAP #49), and in the remote Condor mountain range along the border with Ecuador (MAAP #49).

Roads

Roads are a well-documented driver of deforestation in the Amazon, particularly due to their ability to facilitate human access to previously remote areas.10 Roads often serve as an indirect driver, as most of the deforestation directly associated with agriculture, cattle pasture, and gold mining is likely greatly facilitated by proximity to roads. We documented the start of a controversial road construction project that would cut through the buffer zones of two important protected areas, Amarakaeri Communal Reserve and Manu National Park (MAAP #29).

Logging Roads

In relation to general roads described above, we distinguish access roads that are constructed to gain entry to a particular project. The most notable type of access roads in Peru are logging roads, which are likely a leading cause of forest degradation as they facilitate selective logging of valuable timber species in remote areas.

One of the major recent advances in forest monitoring is the ability to quickly identify the construction of new logging roads. The unique linear pattern of these roads appears quite clearly in Landsat-based tree cover loss alerts such as GLAD and CLASlite. This advance is important because it is difficult to detect illegal logging in satellite imagery because loggers in the Amazon often selectively cut high value species and do not produce large clearings. But now, although it remains difficult to detect the actual selective logging, we can detect the roads that indicate that selective logging is taking place in that area.

In a series of articles, we highlighted the recent expansion of logging roads, including the construction of 1,134 km between 2013 and 2015 in the central Peruvian Amazon (MAAP #3, MAAP #18). Approximately one-third of these roads were within the buffer zones of Cordillera Azul and Sierra del Divisor National Parks (MAAP #15).

We documented the construction of an additional 83 km of logging roads during 2016,  (MAAP #40, MAAP #43) including deeper into the buffer zone of Cordillera Azul National Park.

Another major finding is the rapid construction of the logging roads. In several cases, we documented the construction rate of nearly five kilometers per week (MAAP #18, MAAP #40, MAAP #43).

Determining the legality of these logging roads is complex, partly because of the numerous national and local government agencies involved in the authorization process. Many of these roads are near logging concessions and native communities, whom may have obtained the rights for logging from the relevant forestry authority (in many cases, the regional government).

Coca

According to a recent United Nations report, the Peruvian land area under coca cultivation in 2015 (99,580 acres) was the lowest on record (since 2001) and part of a declining trend since 2011 (154,440 acres).11 There are 13 major coca growing zones in Peru, but it appears that only a few of them are actively causing new deforestation. Most important are two coca zonas in the region of Puno that are causing deforestation within and around Bahuaja Sonene National Park (MAAP #10, MAAP #14). Several coca zones in the regions of Cusco and Loreto may also be causing some new deforestation.

Hydroelectric Dams

Although there is a large portfolio of potential new hydroelectric dam projects in the Peruvian Amazon,12 many of not advanced to implementation phase. Thus, forest loss due to hydroelectric dams is not currently a major issue, but this could quickly change in the future if these projects are revived. For example, in adjacent western Brazil, we documented the forest loss of 89,205 acres associated with the flooding caused by two dams on the upper Madeira River (MAAP #34).

Hydrocarbon (Oil & Gas)

During the course of our monitoring, we have not yet detected major deforestation events linked to hydrocarbon-related activities. As with dams, this could change in the future if oil and gas prices rise and numerous projects in remote corners of the Amazon move forward.

Methodology

MAAP methodology has 4 major components:

  1. Forest Loss Detection. MAAP reports rely heavily on early-warning tree cover loss alerts to help us identify where new deforestation is happening. Currently, our primary tool is GLAD alerts, which are developed by the University of Maryland and Google,13 and presented by WRI’s Global Forest Watch and Peru’s GeoBosques. These alerts, launched in Peru in early 2016, are based on 30-meter resolution Landsat satellite images and updated weekly. We also occasionally incorporate CLASlite, forest loss detection software based on Landsat (and now Sentinel-2) developed by the Carnegie Institution for Science, and the moderate resolution (250 meters) Terra-i alerts. We are also experimenting with Sentinel-1 radar data (freely available from the European Space Agency), which has the advantage of piercing through cloud cover in order to continue monitoring despite persistent cloudy conditions
  2. Prioritize Big Data. The early warning systems noted above yield thousands of alerts, thus a procedure to prioritize the raw data is needed. We employ numerous prioritization methods, such as creation of hotspot maps (see below), focus on key areas (such as protected areas, indigenous territories, and forestry concessions), and identification of striking patterns (such as linear features or large-scale clearings).
  1. Identify Deforestation Drivers. Once priority areas are identified, the next challenge is to understand the cause of the forest loss. Indeed, one of the major advances of MAAP over the past year has been using high-resolution satellite imagery to identify key deforestation drivers. Our ability to identify these deforestation drivers has been greatly enhanced thanks to access to high-resolution satellite imagery provided by Planet 14
    (via their Ambassador Program) and Digital Globe (via the NextView Program, courtesy of an agreement with USAID). We also occasionally purchase imagery from Airbus(viaApollo Mapping).
  2. Publish User-Friendly Reports. The final step is to publish technical, but accessible, articles highlighting novel and important findings on the MAAP web portal. These articles feature concise text and easy-to-understand graphics aimed at a wide audience, including policy makers, civil society, researchers, students, journalists, and the public at large. During preparation of these articles, we consult with Peruvian civil society and relevant government agencies in order to improve the quality of the information.

Endnotes

MINAM-Peru (2016) Estrategia Nacional sobre Bosques y Cambio Climático.

Methodology: Kernel Density tool from Spatial Analyst Tool Box of ArcGis. The 2016 data is based on GLAD alerts, while the 2012-15 data is based on official annual forest loss data

Ravikumar et al (2016) Is small-scale agriculture really the main driver of deforestation in the Peruvian Amazon? Moving beyond the prevailing narrative. Conserv. Lett. doi:10.1111/conl.12264

4 Gutiérrez-Vélez VH et al (2011). High-yield oil palm expansion spares land at the expense of forests in the Peruvian Amazon. Environ. Res. Lett., 6, 044029.

Environmental Investigation Agency EIA (2015) Deforestation by Definition.

NG J (2015) United Cacao replicates Southeast Asia’splantation model in Peru, says CEO Melka. The Edge Singapore, July 13, 2015.

Palmas del Shanusi & Palmas del Oriente; http://www.palmas.com.pe/palmas/el-grupo/empresas

Hill D (2015) Palm oil firms in Peru plan to clear 23,000 hectares of primary forest. The Guardian, March 7, 2015.

Asner GP, Llactayo W, Tupayachi R,  Ráez Luna E (2013) Elevated rates of gold mining in the Amazon revealed through high-resolution monitoring. PNAS 46: 18454. They reported 46,417 hectares confirmed and 3,268 hectares suspected (49,865 ha total).

10 Laurance et al (2014) A global strategy for road building. Nature 513:229; Barber et al (2014) Roads, deforestation, and the mitigating effect of protected areas in the Amazon.  Biol Cons 177:203.

11 UNODC/DEVIDA (2016) Perú – Monitoreo de Cultivos de Coca 2015.

12 Finer M, Jenkins CN (2012) Proliferation of Hydroelectric Dams in the Andean Amazon and Implications for Andes-Amazon Connectivity. PLoS ONE 7(4): e35126.

13 Hansen MC et al (2016) Humid tropical forest disturbance alerts using Landsat data. Environ Res Lett 11: 034008.

14 Planet Team (2017). Planet Application Program Interface: In Space for Life on Earth. San Francisco, CA. https://api.planet.com

Citation

Finer M, Novoa S (2017) Patterns and Drivers of Deforestation in the Peruvian Amazon. MAAP: Synthesis #2.

MAAP #53: Wildfire Hotspots in the Peruvian Amazon in 2016

Imagen 53. VIIRS/NASA, SERNANP.

During 2016, Peru experienced an intense wildfire season, exacerbated by widespread drought conditions across the country.

The base map (Image 53, to the left) shows the 2016 fire alert hotspots.

These alerts are generated from a moderate-resolution (375 meters) satellite sensor (VIIRS) that detects significant new heat sources.

Although there has not yet been a comprehensive evaluation of the causes of these fires, evidence indicates that many are linked to agricultural practices that allow fires to escape to surrounding natural habitats.

In the image, we highlight 5 significant fire hotspots in the Amazon basin, labeled A-E (A. Northern Peru; B. Lower Huallaga; C. Huánuco/Ucayali, D. Ene River, E. Southern Manu, F. Interoceanic Highway).

These areas are described in more detail below.

 

 

 

 

 

 

A. Northern Peru

Image 53a. Data: VIIRS/NASA, SERNANP, MODIS

Hotspot A indicates the area in northern Peru that experienced a wave of intense fires in late 2016. Most of the fires occurred in the headwaters of the Amazon, in the Cajamarca and Lambayeque regions.

As previously reported, we estimate that 6,594 acres were burned within 11 Protected Areas (see MAAP #51 and MAAP #52).

Image 53a shows where the concentrations of heat sources were recorded.

B. Lower Huallaga

Hotspot B corresponds to the area along the lower Huallaga river basin, between the regions of Loreto and San Martín. Although most of the fires were in established agricultural areas, some impacted forest and secondary vegetation for the opening of new agricultural areas (Image 53b).

Image 53b. VIIRS/NASA, Planet

C. Huánuco/Ucayali

Hotspot C overlaps with one of the primary deforestation hotspots in the country. As previously reported, one of the primary drivers of deforestation in this area is cattle pasture (see MAAP #37). Therefore, there may be a relationship between the use of fire in agricultural activities and the high deforestation rates in this area.

D. Ene River

Hotspot D highlights an area that generated national and international attention in 2016, when fires along the Ene River threatened two national protected areas (Asháninka Communal Reserve and Otishi National Park) in the Junin region. Image 53d shows a comparison of before (left panel) and during (right panel) the fires. We did not document any fires entering the protected areas.

Image 53d. VIIRS/NASA, SERNANP, Planet

E. South of Manu

Hotspot E corresponds to an area of grassland, inter-Andean valley, and cloud forest in the buffer zone of Manu National Park and surrounding the Wayqecha Private Conservation Area. According to estimates of local officials, around 3,000 hectares burned.

Image 53e. VIIRS/NASA, SERNANP, Planet

F. Interoceanic Highway

Hotspot F indicates an area in southern Peru experiencing increasing deforestation along the Interoceanic Highway in the Madre de Dios region. We previously documented a correlation between the areas with high concentrations of fires and areas of elevated deforestation (see MAAP #47).

References

Planet Team (2017). Planet Application Program Interface: In Space for Life on Earth. San Francisco, CA. https://api.planet.com

Citation

Novoa S, Finer M, Samochuallpa E (2017) Wildfire Hotspots in Peruvian Amazon in 2016. MAAP: 53.

MAAP #52: Update – Fires Degrade 11 Protected Areas in northern Peru

Image 52a. Data: MODIS/NASA, SERNANP, NCI.

In the previous MAAP #51, we gave an initial impact assesment regarding the recent wave of fires in protected areas in northern Peru. Here, we provide a more comprehensive update.

Our revised estimate is 6,594 acres (2,668 hectares) burned in 11 Protected Areas (see Image 52a) in late 2016. Note that the image is from November and smoke from the fires is clearly seen.

The majority (4,165 acres) occured in 7 national protected areas under national administration (Cutervo National Park, Pagaibamba Protected Forest, Laquipampa Wildlife Refuge, Tumbes National Reserve, Cerros de Amotape National Park, Tabaconas-Namballe National Sanctuary, Udima Wildlife Refuge).*

The estimates refer to areas directly affected by fires (i.e. burned) and come from two sources: our analysis of satellite images and field information from SERNANP, the Peruvian protected areas agency.

It appears that the primary cause of these fires is poor agricultural burning practices during a time of intense drought. These conditions allowed fires to escape into protected areas.

Below, we show a series of new satellite images of some of the burn areas (for images of other areas, see MAAP #51). We also publish a statement from SERNANP.

 

*The rest occured in 3 national protected areas under private administration (Chicuate-Chinguelas, Huaricancha, and Bosques de Dotor Private Conservation Areas; 1,927 acres) and 1 municipal protected area (ACA Cachiaco-San Pablo; 502 acres).


Cutervo National Park

The following image shows a comparison of the northern sector of Cutervo National Park before (left panel) and after (right panel) the fires. The estimated burn area within the park is 731 acres. The red dots indicate the fire alerts (heat sources) detected by the VIIRS satellite sensor (note the high correlation between the distribution of the alerts and confirmed burn areas).
Image 52b. Data: Planet, VIIRS/NASA, SERNANP. Click to enlarge.

Pagaibamba Protected Forest

The following image shows a comparison of the southern sector of Pagaibamba Protected Forest before (left panel) and after (right panel) the fires. The red dots indicate the fire alerts. SERNANP estimates the burn area within the protected forest at 1,013 acres (see SERNANP statement below).

Image 52c. Data: Planet, Digital Globe (Nextview), VIIRS/NASA, SERNANP. Click to enlarge.

Tumbes National Reserve

The following image shows a comparison of the western sector of Tumbes National Reserve before (left panel) and after (right panel) the fires. It also shows the smaller burn area within Cerros de Amotape National Park. The estimated burn area within the two adjacent protected areas is 1,285 acres. The red dots indicate the fire alerts.

Image 52d. Data: Planet, SERNANP, VIIRS/NASA. Click to enlarge.

Tabaconas-Namballe National Sanctuary

The following image shows a comparison of the western sector of Tabaconas-Namballe National Sanctuary before (left panel) and after (right panel) the fires. The estimated burn area within the national sanctuary is 35 acres. The red dots indicate the fire alerts.

Image 52e. Data: Planet, USGS/NASA, SERNANP, VIIRS/NASA. Click to enlarge.

Dotor Private Conservation Area

The following image shows a comparison of the northern sector of the private conservation area before (left panel) and after (right panel) the fires. The estimated burn area within the national sanctuary is 395 acres. The red dots indicate the fire alerts.

Image 52f. Data: Planet, VIIRS/NASA, SERNANP. Click to enlarge.

 

Statement from SERNANP

Note: This statement refers to the data in MAAP #51. In the current MAAP #52 report we have made the necessary corrections.

In regards to the effect of forest fires in 6 natural protected areas (Refugio de Vida Silvestre Laquipampa, Refugio de Vida Silvestre Bosques Nublados de Udima, Parque Nacional de Cutervo, Parque Nacional Cerros de Amotape, Reserva Nacional de Tumbes y Bosque de Protección Pagaibamba), located in the departments of Lambayeque and Cajamarca, we clarify that although the ACA and ACCA report refers to 1,400 hectares of heat sources in the particular case of the Pagaibamba Protected Forest, it should be noted that according to the verification carried out in-situ by the SERNANP personnel, the burned habitat amounts to only 410 hectares. The remaining 990 hectares were affected, but indirectly, by presence of smoke and ash.

In addition, SERNANP led a multisectoral action along with our park guards who hare specialized in forest fires, as part of immediate attention to the emergency regarding the forest fires in the affected protected areas, obtaining positive results in a short time.

Finally, SERNANP personnel are assessing the ecological damage and developing a recovery plan.

Citation

Novoa S, Finer M (2017) Update – Fires Degrade 11 Protected Areas in northern Peru. MAAP: 52.

MAAP #51: Fires degrade 7 Protected Areas in northern Peru

analisis_focos_2_v1_b_v1_en
Image 51a. Data: VIIRS/INPE, SERNANP.

Peru’s intense 2016 fire season continues, most recently hitting the northern part of the country.

As seen in this map on the left, during November 2016 the highest concentration of fire alerts (as detected by the VIIRS satellite sensor) were concentrated in the headwaters of the northern Amazon basin (departments of Cajamarca, Piura, and Lambayeque).

It appears that the primary cause of these fires is poor agricultural burning practices during a time of intense drought. These conditions allowed fires to escape into protected areas, including 6 national-level protected areas and 1 municipal protected area.

Until additional cloud-free satellite images are available it is difficult to quantify the total burned area. However, by analyzing the currently available imagery, we estimate 1,980 acres burned in 3 of the protected areas (Laquipampa Wildlife Refuge, Chicuate-Chinguelas PCA, and Cachiaco-San Pablo PCA). The Peruvian protected areas agency, SERNANP, estimates an additional 1,000 acres burned in the Pagaibamba Protected Forest. In addition, by analyzing fire alert data, we estimate that an additional 890 acres affected in the other 3 protected areas (Cutervo National Park, Tabaconas Namballe National Sanctuary, and Huaricancha PCA. See below for details.

Moreover, the Peruvian civil society organization SPDA is highlighting that one of the main problems is the lack of fire-related planning by the Peruvian government, which since 2001 has not fulfilled its mandate to create a National System of Fire Prevention and Control.

 

 

 

Protected Natural Areas

Imagen 51b. Datos: MODIS/NASA, SERNANP, NCI. Click para agrandar.
Image 51b. Data: MODIS/NASA. Click to enlarge.

The image to the left shows a zoom of the area of interest with the high concentration of fire alerts, and highlights the 7 protected areas affected by the fires.

Note in the image (from November 21), the smoke columns inside and surrounding the protected areas. Below, we show a series of high resolution satellite images of these fires.

 

 

 

 

 

 

 

 

 

 

National Sanctuary Tabaconas Namballe
Private Conservation Area Chicuate-Chinguela
Private Conservation Area Huaricancha
Environmental Conservation Area Cachiaco

La Imagen 51c. Datos: SERNANP, USGS/NASA
Image 51c. Data: SERNANP, USGS/NASA. Click to enlarge.

These 4 adjacent areas protect highland (paramo and montane forest) ecosystems important for regulating water resources in the Amazon headwaters.

In the image to the left, the dashed yellow lines indicate where the fires were concentrated.

We estimate that approximately 2,125 acres have burned in these 4 areas.

The following images zoom in on the burn areas, showing them both before (left panel) and after (right panel) the fires. Note that in the right panels, the dark areas correspond to the burned areas. Also note that the paramo ecosystem was most affected.

La Imagen 51d. Datos: Planet, USGS/NASA
Image 51d. Data: Planet, USGS/NASA
La Imagen 51e. Datos: SERNANP, Planet, Digital Globe (Nextview). Click para agrandar.
Image 51e. Data: SERNANP, Planet, Digital Globe (Nextview). Click to enlarge.
La Imagen 51f. Datos: SERNANP, Planet, Digital Globe (Nextview). Click para agrandar.
Image 51f. Data: SERNANP, Planet, Digital Globe (Nextview). Click to enlarge.

Laquipampa Wildlife Refuge

La Imagen 51f. Datos: SERNANP, USGS/NASA. Click para agrandar.
Image 51g. Data: SERNANP, USGS/NASA. Click to enlarge.

The Laquipampa Wildlife Refuge is an important protected area that conserves one of the most threatened ecosystems in Peru, the Seasonally Dry Northwest Forests.

In the image to the left, the dashed yellow lines indicate where the fires were concentrated.

We estimate that approximately 250 acres have burned in the refuge.

The following images zoom in on the burn areas, showing them both before (left panel) and after (right panel) the fires. Note that in the right panels, the dark areas correspond to the burned areas.

 

 

 

La Imagen 51h. Datos: SERNANP, Digital Globe (Nextview). Click para agrandar.
Image 51h. Data: SERNANP, Digital Globe (Nextview). Click to enlarge.
La Imagen 51i. Datos: SERNANP, Digital Globe (Nextview). Click para agrandar.
Image 51i. Data: SERNANP, Digital Globe (Nextview). Click to enlarge.

Pagaibamba Protected Forest

La Imagen 51j. Datos: SERNANP, USGS/NASA. Click para agrandar.
Image 51j. Data: SERNANP, USGS/NASA. Click to enlarge.

The Pagaibamba Protected Forest, home to an important ecosystem of paramo and montane forest that helps regulate local water supply, was another important protected area affected by the fires.

The Peruvian protected areas agency, SERNANP, estimates that 1,000 acres burned in the Pagaibamba Protected Forest.

The image to the left shows the extensive smoke columns from 7 fire outbreaks during the peak burning in November.

 

 

 

 

 

 

 

 

 

 

Cutervo National Park

La Imagen 51k. Datos: SERNANP, Airbus. Click para agrandar.
Image 51k. Data: SERNANP, Airbus. Click to enlarge.

Cutervo National Park, created in 1979, was the first protected area established in Peru. It too has also been degraded by the intense season.

The fire alerts indicate that around 494 acres burned within the national park.

The image to the left shows the extensive smoke during the peak burning in November. The yellow circle indicates where the fire alerts were concentrated.

 

 

 

 

 

 

 

 

Citation

Novoa S, Finer M (2016) Fires degrade 6 Protected Areas in northern Peru. MAAP: 51.

 

MAAP #50: Gold Mining Deforests 31,000 Acres in southern Peruvian Amazon during last 4 years

We analyzed hundreds of high-resolution satellite images to calculate the amount of recent (October 2012 – October 2016) gold mining deforestation in the southern Peruvian Amazon: 30,895 acres. Combining this finding with previous studies, we estimate the total gold mining deforestation of around 154,440 acres in the region. Image 50a shows the recent gold mining deforestation in red, and all previous gold mining deforestation in yellow.

Key findings include:

  • The vast majority of the deforestation has occurred in the Madre de Dios region, but also has extended to the adjacent regions of Cusco and Puno.
  • The rate of recent gold mining deforestation was much lower (42%) than during its peak, which occurred between 2010 and 2012 (6,640 vs. 15,650 acres/year).
  • However, half of the recent gold mining deforestation (15,830 acres) occurred within the buffer zones of three protected areas (Tambopata National Reserve, Bahuaja Sonene National Park, and Amarakeari Communal Reserve).
  • Moreover, recent gold mining deforestation invaded two protected areas (Tambopata and Amarakaeri).
Image 50a. Data: MAAP, Asner et al (2013) PNAS, SERNANP. Click to enlarge.
Image 50a. Data: MAAP, Asner et al (2013) PNAS, SERNANP. Click to enlarge.

Previously, Dr. Greg Asner and colleagues documented the deforestation of approximately 123,200 acres (50,000 hectares) by gold mining activities in the southern Peruvian Amazon through September 2012 (Asner et al 2013). We have updated this information by analyzing hundreds of recent (2016) high-resolution satellite images (see Methodology section below). We documented an additional 30,895 acres (12,503 hectares) of gold mining deforestation between October 2012 and October 2016. Thus, combining both studies, we estimate the total gold mining deforestation of around 154,440 acres (62,500 hectares).

Areas of Interest

We have identified at least 7 areas of interest, characterized by high levels of gold mining deforestation between 2013 and 2016 (see Insets A-G in Image 50b). Below, for each of these areas, we briefly describe its situation and show a recent image from 2016 (right panel) in relation to an older image from between 2011 and 2013 (left panel). The yellow circles indicate the primary areas of gold mining deforestation between those dates. Also, we show a high resolution image that represents each area.

Image 50b. Data: MAAP, Asner et al (2013) PNAS, SERNANP
Image 50b. Data: MAAP, Asner et al (2013) PNAS, SERNANP

A. Tambopata National Reserve and Buffer Zone (La Pampa sector)

Image 50c. Data: USGS/NASA, SERNANP. Click to enlarge.
Image 50c. Data: USGS/NASA, SERNANP. Click to enlarge.

This area is the most serious in terms of the advance of deforestation in a protected area. As documented in MAAP #46, after the initial invasion in November 2015, illegal mining within the Tambopata National Reserve has now exceeded 450 hectares. Recently, the Peruvian Government has carried out a series of major raids against the illegal miners in this area (see MINAM 2016).

Image 50d. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.
Image 50d. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.

In regards to the buffer zone, there has been a sharp increase in the deforestation in the area known as La Pampa. In total, we estimate 9,720 acres of gold mining deforestation within the buffer zone of Tambopata National Reserve over the past four years.

Image 50e. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.
Image 50e. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.

B. Upper Malinowski River (Bahuaja Sonene National Park buffer zone)

Image 50f. Data: USGS/NASA, SERNANP. Click to enlarge.
Image 50f. Data: USGS/NASA, SERNANP. Click to enlarge.

Upstream of the Tambopata National Reserve, illegal gold mining is also advancing along the upper Malinowski River. This area is located in the buffer zone of Bahuaja Sonene National Park. We estimate 2,256 acres of gold mining deforestation has occurred within this buffer zone over the past four years.

Image 50g. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.
Image 50g. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.

C. Delta-1/Amarakaeri Communal Reserve

Image 50h. Data: USGS/NASA, SERNANP. Click to enlarge.
Image 50h. Data: USGS/NASA, SERNANP. Click to enlarge.

An area known as Delta-1 has also experienced a recent increase in gold mining deforestation. This area is partially located within the buffer zone of the Amarakaeri Communal Reserve. As we reported in MAAP #6, illegal gold mining entered the Reserve between 2014 and 2015. The joint patrol and monitoring actions between the national government and indigneous representatives of the Reserve (ECA Amarakaeri) managed to stop the advance of mining deforestation within the Reserve in 2016 (MAAP #44). However, gold mining deforestation continues in the buffer zone of the Reserve, clearing 3,857 acres over the past four years.

Image 50i. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.
Image 50i. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.

D. Cusco: Camanti/Quince Mil

Image 50j. Data: USGS/NASA, SERNANP. Click to enlarge.
Image 50j. Data: USGS/NASA, SERNANP. Click to enlarge.

The advance of gold mining is not limited to Madre de Dios, as it has also expanded in the Cusco region. Most mining activity in Cusco occurs along the Araza and Nuciniscato Rivers in an area known as Camanti/Quince Mil (located between the southeastern sector of the Amarakaeri Communal Reserve and the Interoceanic Highway). We estimate that gold mining deforestation in Cusco reached 1,006 acres over the past four years.

Image 50k. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.
Image 50k. Data: Digital Globe (Nextview), SERNANP. Click to enlarge.

E. Madre de Dios River (i)

Gold mining deforestation also continues to advance along the Madre de Dios River, between the city of Puerto Maldonado and the area of Boca Colorado. Mining in this area is characterized by many small and scattered mining operations.

Image 50l. Data: USGS/NASA, MINAGRI. Click to enlarge.
Image 50l. Data: USGS/NASA, MINAGRI. Click to enlarge.
Image 50m. Data: Digital Globe (Nextview), MINAGRI. Click to enlarge.
Image 50m. Data: Digital Globe (Nextview), MINAGRI. Click to enlarge.

F. Madre de Dios River (ii)

Image 50m. Data: USGS/NASA. Click to enlarge.
Image 50m. Data: USGS/NASA. Click to enlarge.
Image 50n. Data: USGS/NASA. Click to enlarge.
Image 50n. Data: USGS/NASA. Click to enlarge.

G. Pariamanu River

Image 50o. Data: USGS/NASA. Click to enlarge.
Image 50o. Data: USGS/NASA. Click to enlarge.

Finally, we documented the start of mining in a new area: along the Pariamanu river. We estimate that, so far, gold mining deforestation along this river has reached 170 acres.

Image 50p. Data: Digital Globe (Nextview). Click to enlarge.
Image 50p. Data: Digital Globe (Nextview). Click to enlarge.

Methodology

We used gold mining deforestation data from Asner et al 2013 as a pre-2013 base. We then added 2013-2014 forest loss data (Hansen et al 2013) and 2015-2016 GLAD alerts (Hansen et al 2016), both datasets generated by the University of Maryland and Google. The 2013-2016 data was filtered to only include forest loss directly caused by gold mining as determined by visual analysis of 2016 high-resolution satellite imagery. This included 0.5 m resolution imagery from Digital Globe and 3-5 m resolution imagery from Planet. In total, we analyzed 135 images from Digital Globe and 34 from Planet. Gold mining deforestation is suitable for this type of visual analysis because it leaves a unique footprint, quite distinct from other possible causes such as agriculture, cattle pasture, and natural river movement. As described in Asner et al 2013, “gold mining operations result in a unique combination of bare substrate and standing water[…]” Finally, we erased any overlapping mining deforestation data to avoid duplicating information between data sets. Displayed Landsat images are bands 753, made transparent over bands 432.

References

Asner GP, Llactayo W, Tupayachi R,  Ráez Luna E (2013) Elevated rates of gold mining in the Amazon revealed through high-resolution monitoring. PNAS 46: 18454. They reported 46,417 hectares confirmed and 3,268 hectares suspected (49,865 ha total).

Hansen MC et al (2013) High-Resolution Global Maps of 21st-Century Forest Cover Change. Science 342: 850–53.

Hansen MC et al (2016) Humid tropical forest disturbance alerts using Landsat data. Environ Res Lett 11: 034008.

Citation

Finer M, Olexy T, Novoa S (2016) Gold Mining Deforests 32,000 Acres in southern Peruvian Amazon from 2013 to 2016. MAAP: 50.

MAAP #49: New Frontiers of Gold Mining in the Peruvian Amazon

maap_amazonas_mineria_1_v3_beta_en
Imagen 49a. Peru’s gold mining frontiers.

In a series of articles, we have previously detailed the progress of gold mining deforestation in the southern Peruvian Amazon (mainly in the Madre de Dios region).

In the current report, we show the new gold mining frontiers in northern and central Peru (Image 49a): two cases in the region of Amazonas and a case in the buffer zone of El Sira Communal Reserve, in the Huanuco region.

Deforestation in these cases is still in its early stages, so there is still time to avoid larger-scale damage, as in the case of Madre de Dios.

 

 

 

 

 

 

 

 

 

Amazonas Region

In the Amazonas region, there are two cases of recently active gold mining deforestation: the Afrodita project in the Cóndor mountain range (Inset A) and along the Santiago River (Inset B) (Image 49b).

maap_amazonas_mineria_1_v2_en
Image 49b. Data: SERNANP

Amazonas: Condor Mountain Range

The remote Condor Mountain Range, located along the Peru-Ecuador border, is home to rich biodiversity and territories of the Awajún and Wampís indigenous peoples. The mining concession Afrodita, on the Peruvian side, has been controversial due to the potential environmental and social impacts of mining activity in a sensitive environment. Image 49c shows the beginning of deforestation within the Afrodita concession, between December 2015 (left panel) and July 2016 (right panel). Thus far, deforestation within the concession is 12 hectares (30 acres), including the access road from Ecuador.

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Image 49c. Data: Planet. Click to enlarge.

Amazonas: Santiago River

In the previous MAAP #36, we showed the first evidence of gold mining deforestation along the Santiago River. Image 49d shows a comparison between the situation last shown by MAAP in March 2016 (left panel), and its current state in October 2016 (right panel). To date, this deforestation has reached 10 hectares (25 acres). Importantly, in September, the Peruvian Navy intervened in the area (known as the Pastazio tributary), destroying some dredges and other equipment.

maap_amazona_mineria_b_v2_en
Image 49d. Data: Planet. Click to enlarge.

El Sira Communal Reserve

In the previous MAAP #45, we showed illegal gold mining within the El Sira Communal Reserve. Here, we highlight a new active gold mining area in the buffer zone of the reserve (Image 49e). Image 49f shows the appearance of a new mining area between August 2015 (left panel) and August 2016 (right panel). To date, the mining deforestation at this site has reached 10 hectares (25 acres).

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Image 49e. Data: SERNANP
esira_mineria_2_m_v1_en
Image 49f. Data: Digital Globe (Nextview). Click to enlarge.

Citation

Novoa S, Finer M (2016) New Frontiers of Gold Mining in the Peruvian Amazon. MAAP: 49

MAAP #48: Oil Palm Deforestation in the central Peruvian Amazon

Image 48a. Data: UMD/GLAD
Image 48a. Data: UMD/GLAD

In MAAP #26, we presented a 2015 Deforestation Hotspots map for the Peruvian Amazon, which showed that the highest concentration of deforestation is located in the central Amazon region.

Here, we zoom in on one of these hotspots, located in the northern Huanuco region along its border with San Martin (see Inset E of Image 48a).*

We found that the main deforestation driver in this hotspot was the establishment of small- and medium-scale oil palm plantations.**

*Note that we analyzed the hotspots in Insets A-D in MAAP #26 and MAAP #37.

** We defined small-scale as less than 5 hectares, medium-scale as 5-50 hectares, and large-scale as greater than 50 hectares

 

 

 

 

Image 48b. Data: ACA, Hansen/UMD/Google/USGS/NASA
Image 48b. Data: ACA, Hansen/UMD/Google/USGS/NASA

Oil Palm Causing Deforestation

Image 48b shows our area of interest.

The San Martin side is characterized by large- and medium-scale plantations (yellow), while the Huanuco side is characterized by small- and medium-scale plantations.

Red indicates areas deforested and converted to oil palm plantations between 2010 and 2014, according to our analysis of high-resolution satellite imagery.

We estimate the deforestation of 558 hectares (1,370 acres) for establishment of oil palm plantations between 2010-2014 in northern Huanuco. Two-thirds of the plantations are medium scale (5-50 hectares) and the remaining third are small-scale (<5 hectares).***

Historical forest loss data indicates that most of the deforestation occurred in secondary forests, with a smaller percentage in primary forests.

***See MAAP #32 for more information on the importance of knowing the size of the deforestation events.

 

 

Image 48c. Data: ACA, Hansen/UMD/Google/USGS/NASA
Image 48c. Data: ACA, Hansen/UMD/Google/USGS/NASA

High-Resolution Zooms

Image 48c shows a zoom of our area of interest.

The insets indicate the areas shown below with satellite imagery from August 2009 (left panel) and October 2015 (right panel).

Each image shows the existence of forest in 2009 replaced by oil palm in 2015 (the red dot is a point of reference indicating the same spot across time).

huanucooilpalm_zoome2_engver3

Image 48d. Data: Digital Globe (Nextview)
Image 48d. Data: Digital Globe (Nextview)
huanucooilpalm_zoome4_eng
Image 48e. Data: Digital Globe (Nextview)

Citation

Finer M, Olexy T (2016) Oil Palm Deforestation in the central Peruvian Amazon. MAAP: 48.

MAAP #47: Fires Degrade Southern Peruvian Amazon (Madre De Dios)

The Peruvian Amazon is experiencing an intense 2016 fire season due to one of its driest periods in decades. In recent weeks, we have presented a series of articles showing the power of the new GLAD alerts in detecting deforestation in near real time. Here, we go a step further and also evaluate alerts to detect fires in near real time. These fire alerts are based on the moderate resolution (375 meters) VIIRS sensor that detects heat sources and highlights areas where the temperature is significantly above normal.

We compared, for the first time, these two types of alerts and found a correlation between fires and forest loss along a stretch of the Interoceanic Highway in the southern Peruvian Amazon (Madre de Dios region).

Image 47a shows the occurrence of fire alerts (left panel) in relation to deforestation alerts (right panel) during 2016 along the highway between the towns of Iberia and Iñapari. Insets A-E indicate the areas highlighted in the high-resolution zooms below, where approximately 600 hectares were affected by fires in 2016..

maap_focos_calor_mdd_1_m_v1_en
Image 47a. Data: UMD/GLAD, Hansen/UMD/Google/USGS/NASA, USGS/NASA, NASA/INPE

Zooms A – E

Images 47b-f show the forest loss/degradation between July (left panel) and September (right panel) of 2016 in the areas indicated by Insets A-E. Yellow circles indicate areas with the most forest loss/degradation between these dates. Brown dots indicate the fire alerts. Note that the forest loss/degradation is often adjacent to recently burned pasture and agricultural areas.

maap_focos_calor_mdd_a_m_v1_en
Image 47b. Data: Planet, INPE
maap_focos_calor_mdd_b_m_v1_en
Image 47c. Data: Planet, INPE
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Image 47d. Data: Planet, INPE
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Image 47e. Data: Planet, INPE
maap_focos_calor_mdd_e_m_v1_en
Image 47f. Data: Planet, INPE

Confirmation of the relation between Fires and Deforestation

Image 47g shows a detailed example of the relationship between fire and deforestation alerts. The left panel shows both the fire hot spots (brown spots) and confirmed burned areas (purple). Also note the forest fire smoke. The confirmation of the burned areas was achieved through the Normalized Burn Ratio index. The right panel displays the subsequent GLAD forest loss alerts in red.

maap_focos_calor_mdd_f_m_v1_en
Image 47g. Data: Planet, INPE

Citation

Novoa S, Finer M, Mendoza E (2016) Fires Degrade Southern Peruvian Amazon (Madre De Dios). MAAP: 47.