Monitoring tropical forest carbon stocks and emissions using Planet satellite data
| Autor: | Gregory P. Asner, Joseph Mascaro, Pramukta Kumar, Tara O’Shea, Ovidiu Csillik |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Multidisciplinary
010504 meteorology & atmospheric sciences Agroforestry lcsh:R 0211 other engineering and technologies lcsh:Medicine Tropics Carbon sink Climate change 02 engineering and technology Carbon sequestration Tropical ecology 01 natural sciences Article Climate change mitigation Greenhouse gas Environmental science lcsh:Q Ecosystem Satellite imagery Forest ecology lcsh:Science 021101 geological & geomatics engineering 0105 earth and related environmental sciences |
| Zdroj: | Scientific Reports, Vol 9, Iss 1, Pp 1-12 (2019) Scientific Reports |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-019-54386-6 |
| Popis: | Tropical forests are crucial for mitigating climate change, but many forests continue to be driven from carbon sinks to sources through human activities. To support more sustainable forest uses, we need to measure and monitor carbon stocks and emissions at high spatial and temporal resolution. We developed the first large-scale very high-resolution map of aboveground carbon stocks and emissions for the country of Peru by combining 6.7 million hectares of airborne LiDAR measurements of top-of-canopy height with thousands of Planet Dove satellite images into a random forest machine learning regression workflow, obtaining an R2 of 0.70 and RMSE of 25.38 Mg C ha−1 for the nationwide estimation of aboveground carbon density (ACD). The diverse ecosystems of Peru harbor 6.928 Pg C, of which only 2.9 Pg C are found in protected areas or their buffers. We found significant carbon emissions between 2012 and 2017 in areas aggressively affected by oil palm and cacao plantations, agricultural and urban expansions or illegal gold mining. Creating such a cost-effective and spatially explicit indicators of aboveground carbon stocks and emissions for tropical countries will serve as a transformative tool to quantify the climate change mitigation services that forests provide. |
| Databáze: | OpenAIRE |
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