We used satellite-derived data to map the spatial footprint of two forest clearance processes inside lost intact forest parcels—burned area and forest clearance. To map forest clearance, we used version 1.1 of the Hansen et al. Global Forest Change dataset (14), which provides forest loss information between 2000 and 2013 at a spatial resolution of 30 m. This dataset also provides a continuous canopy cover band representing tree cover in year 2000. Following previous studies [e.g., (46)], we used a canopy cover threshold of 25% to delineate forested and nonforested areas within lost parcels. We used the MCD45 burned area product to map burned area (21). This MODIS-derived product maps the approximate date of burning at 500-m resolution using multitemporal land surface reflectance data. Monthly burned area data were aggregated from 1 April 2000 (the earliest available date) to 31 December 2013, using only burned areas with the highest pixel detection confidence. Pixels that burned multiple times during aggregation period were treated as only having burned once in our analysis. We removed burned areas that overlapped with forest clearance inside lost parcels to avoid double counting forest clearance processes. Data were extracted at a spatial resolution of 30 m in Google Earth Engine.

Note: The content above has been extracted from a research article, so it may not display correctly.

Please log in to submit your questions online.
Your question will be posted on the Bio-101 website. We will send your questions to the authors of this protocol and Bio-protocol community members who are experienced with this method. you will be informed using the email address associated with your Bio-protocol account.

We use cookies on this site to enhance your user experience. By using our website, you are agreeing to allow the storage of cookies on your computer.