Source: Annalisa Meyer, Smithsonian Newsdesk
Due to its long political and economic isolation, Myanmar has retained much of its original forest cover, but much of the intact forest is unprotected and increasingly subject to pressures from rapid political and economic changes in the country.
For example, areas that were inaccessible due to armed conflicts between the government and ethnic groups are starting to open up for timber production and commercial plantations. To investigate changes to forest cover, the paper’s authors used Landsat satellite images to map forest cover in Myanmar between 2002 and 2014.
“We found that forests cover 63 percent of Myanmar, making it one of the most forested countries in the region,” said author and head of SCBI’s Conservation Ecology Center Peter Leimgruber. “However, severe logging, expanding plantations and degradation pose increasing threats. Only 38 percent of the country’s forests can be considered intact with canopy cover less than 80 percent.”
In terms of conservation efforts and protection of endangered species, intact (un-fragmented) forests are the most valuable. During the study period, the authors found that Myanmar’s intact forest (38 percent) declined by 11 percent (more than 2 million hectares) with an annual loss of 0.94 percent.
Through their analyses the authors also identified nine township hotspots of deforestation of intact forests and a large area 6.1 million hectares of intact forest in northern Myanmar.
The authors suggest that protection of intact forests should take priority, but other ways of improving forest management could include encouraging forest restoration and reclaiming degraded forestlands for plantations and sustainable agriculture.
Other authors include:
Tejas Bhagwat, Melissa Songer, Katherine LaJeunesse Connette, Grant Connette and Qiongyu Huang from SCBI;
Ned Horning from the American Museum of Natural History;
Andrea Hess from the Department of Geosciences, University of Bayreuth, Bayreuth, Germany;
and Thiri Khaing, Zaw Min Thein, Kyaw Moe Aung, Kyaw Htet Aung, Paing Phyo, Ye Lin Tun, Aung Htat Oo, Anthony Neil, Win Myo Thu, Asja Bernd from the EcoDev/ALARM, Kamayut Township, Yangon, Myanmar and/or GMAP, Hlaing Township, Yangon, Myanmar.
Bhagwat T, Hess A, Horning N, Khaing T, Thein ZM, Aung KM, et al. (2017) Losing a jewel—Rapid declines in Myanmar’s intact forests from 2002-2014. PLoS ONE 12(5): e0176364. https://doi.org/10.1371/journal.pone.0176364
More frequent satellite observations, such as those of the Harmonized Landsat Sentinel-2 (HLS) dataset, are needed to fully capture flood dynamics in regions experiencing short-lived, ephemeral flooding.