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| DOI | 10.1088/1748-9326/ab738e |
| Feedback between drought and deforestation in the Amazon | |
| Staal A.; Flores B.M.; Aguiar A.P.D.; Bosmans J.H.C.; Fetzer I.; Tuinenburg O.A. | |
| 发表日期 | 2020 |
| ISSN | 17489318 |
| 卷号 | 15期号:4 |
| 英文摘要 | Deforestation and drought are among the greatest environmental pressures on the Amazon rainforest, possibly destabilizing the forest-climate system. Deforestation in the Amazon reduces rainfall regionally, while this deforestation itself has been reported to be facilitated by droughts. Here we quantify the interactions between drought and deforestation spatially across the Amazon during the early 21st century. First, we relate observed fluctuations in deforestation rates to dry-season intensity; second, we determine the effect of conversion of forest to cropland on evapotranspiration; and third, we simulate the subsequent downwind reductions in rainfall due to decreased atmospheric water input. We find large variability in the response of deforestation to dry-season intensity, with a significant but small average increase in deforestation rates with a more intense dry season: With every mm of water deficit, deforestation tends to increase by 0.13% per year. Deforestation, in turn, has caused an estimated 4% of the recent observed drying, with the south-western part of the Amazon being most strongly affected. Combining both effects, we quantify a reinforcing drought-deforestation feedback that is currently small, but becomes gradually stronger with cumulative deforestation. Our results suggest that global climate change, not deforestation, is the main driver of recent drying in the Amazon. However, a feedback between drought and deforestation implies that increases in either of them will impede efforts to curb both. © 2020 The Author(s). Published by IOP Publishing Ltd. |
| 英文关键词 | Agriculture; Fire; Forest clearing; Land use change; Modeling; Moisture recycling; Remote sensing |
| 语种 | 英语 |
| scopus关键词 | Climate change; Drought; Rain; Amazon rain forest; Atmospheric water; Dry seasons; Environmental pressures; Forest climate; Global climate changes; Water deficits; Deforestation; deforestation; drought; environmental impact; feedback mechanism; global climate; rainforest; twenty first century; Amazonas [Brazil]; Brazil |
| 来源期刊 | Environmental Research Letters
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/154062 |
| 作者单位 | Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden; Aquatic Ecology and Water Quality Management Group, Wageningen University, Wageningen, Netherlands; Department of Plant Biology, University of Campinas, Campinas, Brazil; Earth System Science Centre, National Institute for Space Research (INPE), Saõ José dos Campos, Brazil; Department of Environmental Science, Radboud University, Nijmegen, Netherlands; Department of Environmental Science, Copernicus Institute for Sustainable Development, Utrecht University, Utrecht, Netherlands |
| 推荐引用方式 GB/T 7714 | Staal A.,Flores B.M.,Aguiar A.P.D.,et al. Feedback between drought and deforestation in the Amazon[J],2020,15(4). |
| APA | Staal A.,Flores B.M.,Aguiar A.P.D.,Bosmans J.H.C.,Fetzer I.,&Tuinenburg O.A..(2020).Feedback between drought and deforestation in the Amazon.Environmental Research Letters,15(4). |
| MLA | Staal A.,et al."Feedback between drought and deforestation in the Amazon".Environmental Research Letters 15.4(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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