气候变化领域集成服务门户(CCPortal): Fire enhances forest degradation within forest edge zones in Africa

CCPortal

DOI	10.1038/s41561-021-00763-8
	Fire enhances forest degradation within forest edge zones in Africa
	Zhao Z.; Li W.; Ciais P.; Santoro M.; Cartus O.; Peng S.; Yin Y.; Yue C.; Yang H.; Yu L.; Zhu L.; Wang J.
发表日期	2021
ISSN	17520894
起始页码	479
结束页码	483
卷号	14 期号:7
英文摘要	African forests suffer from severe fragmentation that further causes forest degradation near forest edges. The impact of fires used for slash-and-burn on forest edge effects remains unclear. Here, using high-resolution satellite-based forest-cover and biomass datasets, we find that edge effects extend a median distance and an interquartile range of 0.11−0.04+0.06km and 0.15−0.05+0.09km into moist and dry forests, and biomass within the forest edge zones has a carbon deficit of 4.1 PgC. Fires occurred in 52% of the forest edges and increased the carbon deficit by 5.5−2.9+4.3MgCha−1, compared with non-fire edges, through both the direct impact of fires intruding into forests and the indirect impact of changes in the local atmospheric circulations increasing canopy dryness. If small-scale slash-and-burn practices continue, increased fragmentation during 2010–2100 will result in a carbon loss from edge effects of 0.54–4.6 PgC. Fragmentation-caused forest degradation could be avoided by implementing dedicated forest protection policies supported by satellite monitoring of forest edges. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
英文关键词	biomass; ecozone; forest edge; forest management; satellite data; spatiotemporal analysis; Africa
语种	英语
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206981
作者单位	Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, China; Joint Center for Global Change Studies, Beijing, China; Laboratoire des Sciences du Climat et de l’Environnement (LSCE), CEA CNRS UVSQ, Gif Sur Yvette, France; Climate and Atmosphere Research Center (CARE-C), The Cyprus Institute, Nicosia, Cyprus; Gamma Remote Sensing, Gümligen, Switzerland; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University, Beijing, China; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, United States; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, China
推荐引用方式 GB/T 7714	Zhao Z.,Li W.,Ciais P.,et al. Fire enhances forest degradation within forest edge zones in Africa[J],2021,14(7).
APA	Zhao Z..,Li W..,Ciais P..,Santoro M..,Cartus O..,...&Wang J..(2021).Fire enhances forest degradation within forest edge zones in Africa.Nature Geoscience,14(7).
MLA	Zhao Z.,et al."Fire enhances forest degradation within forest edge zones in Africa".Nature Geoscience 14.7(2021).