globalchange  > 气候变化与战略
DOI: 10.1038/s41561-021-00763-8
论文题名:
Fire enhances forest degradation within forest edge zones in Africa
作者: Zhao Z.; Li W.; Ciais P.; Santoro M.; Cartus O.; Peng S.; Yin Y.; Yue C.; Yang H.; Yu L.; Zhu L.; Wang J.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2021
卷: 14, 期:7
起始页码: 479
结束页码: 483
语种: 英语
英文关键词: biomass ; ecozone ; forest edge ; forest management ; satellite data ; spatiotemporal analysis ; Africa
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169837
Appears in Collections:气候变化与战略

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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

Recommended Citation:
Zhao Z.,Li W.,Ciais P.,et al. Fire enhances forest degradation within forest edge zones in Africa[J]. Nature Geoscience,2021-01-01,14(7)
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