Active fires show an increasing elevation trend in the tropical highlands
文献类型：期刊论文
| 作者 | Xiao, Chiwei1,2; Feng, Zhiming1,2; Li, Peng1,2 |
| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2022-02-07 |
| 页码 | 14 |
| 关键词 | active fires ASTER GDEM MODIS Collection 6 the UN-REDD Program tropical highlands |
| ISSN号 | 1354-1013 |
| DOI | 10.1111/gcb.16097 |
| 通讯作者 | Li, Peng(lip@igsnrr.ac.cn) |
| 英文摘要 | As an inherent element of the Earth's ecosystem, forest, and vegetation fires are one of the key contributors to and direct consequences of climate change. Given that topography is one of the key drivers of forest landscapes and fire behavior, it is important to clarify what the topographical characteristics and trends of global fire events are, particularly in the tropics. Here, we have investigated the variations in elevation of active fires at the continental to a global scale, including the tropics, the extra-tropics, the lowlands, and the highlands (greater than 200 m above sea level [asl]), using the available MODIS Collection 6 active fire products (2001-2019). The main conclusions are: (1) the annual totality (average of 4.5 million) of global active fire events decreased and over 97% of them occurred frequently below 1500 m asl. (2) The tropics and the highlands accounted for similar to 74% (+/- 3%) and 71% (+/- 2%) of global active fires, respectively, and 77% (+/- 2%) were observed in the tropical highlands. (3) From the beginning of the 21st century, active fires in the highlands displayed an upward elevational trend, particularly in the tropics, while the opposite trend was observed for the lowlands. More importantly, the rate of the increasing elevation in the highlands had a greater magnitude than that of decreasing elevation in the lowlands. (4) Finally, the United Nations collaborative program on Reducing Emissions from Deforestation and Forest Degradation (UN-REDD) in Developing Countries seemed to slow down or even result in a reversal of the upward elevational trend of fire occurrences in the tropics for the partner countries, especially in the lowlands. In the context of global climate change and rampant fires, the trend of rising elevation for active fire occurrences, particularly in the tropical highlands, indicates that more vegetation burning events occur or will occur in hilly to mountainous areas, thus posing further threats to tropical forests and some important biodiversity refuges. More sustained efforts should be made by governments and the scientific community to instigate enhanced fire management practices and to conduct in-depth research programs. |
| WOS关键词 | GREENHOUSE-GAS EMISSIONS ; DETECTION ALGORITHM ; SOUTHEAST-ASIA ; FOREST ; CARBON ; DEFORESTATION ; IMPACTS ; CLIMATE ; DEGRADATION ; POLLUTION |
| 资助项目 | Youth Innovation Promotion Association of the Chinese Academy of Sciences[CAS2020055] ; National Natural Science Foundation of China[41971242] ; National Natural Science Foundation of China[42001226] ; National Natural Science Foundation of China[42130508] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000752102900001 |
| 出版者 | WILEY |
| 资助机构 | Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/170416]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Li, Peng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Chiwei,Feng, Zhiming,Li, Peng. Active fires show an increasing elevation trend in the tropical highlands[J]. GLOBAL CHANGE BIOLOGY,2022:14. |
| APA | Xiao, Chiwei,Feng, Zhiming,&Li, Peng.(2022).Active fires show an increasing elevation trend in the tropical highlands.GLOBAL CHANGE BIOLOGY,14. |
| MLA | Xiao, Chiwei,et al."Active fires show an increasing elevation trend in the tropical highlands".GLOBAL CHANGE BIOLOGY (2022):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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