气候变化领域集成服务门户(CCPortal): Deforestation reduces rainfall and agricultural revenues in the Brazilian Amazon

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DOI	10.1038/s41467-021-22840-7
	Deforestation reduces rainfall and agricultural revenues in the Brazilian Amazon
	Leite-Filho A.T.; Soares-Filho B.S.; Davis J.L.; Abrahão G.M.; Börner J.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	It has been suggested that rainfall in the Amazon decreases if forest loss exceeds some threshold, but the specific value of this threshold remains uncertain. Here, we investigate the relationship between historical deforestation and rainfall at different geographical scales across the Southern Brazilian Amazon (SBA). We also assess impacts of deforestation policy scenarios on the region’s agriculture. Forest loss of up to 55–60% within 28 km grid cells enhances rainfall, but further deforestation reduces rainfall precipitously. This threshold is lower at larger scales (45–50% at 56 km and 25–30% at 112 km grid cells), while rainfall decreases linearly within 224 km grid cells. Widespread deforestation results in a hydrological and economic negative-sum game, because lower rainfall and agricultural productivity at larger scales outdo local gains. Under a weak governance scenario, SBA may lose 56% of its forests by 2050. Reducing deforestation prevents agricultural losses in SBA up to US$ 1 billion annually. © 2021, The Author(s).
语种	英语
scopus关键词	rain; deforestation; economic conditions; environmental economics; governance approach; rainfall; agricultural parameters; Article; Brazil; climate change; deforestation; dry season; economics; environmental policy; environmental protection; evapotranspiration; land use; opportunity cost; quantitative analysis; surface property; Amazonia; Brazil
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251459
作者单位	Centre for Remote Sensing, Federal University of Minas Gerais, Belo Horizonte, Brazil; Department of Agricultural Engineering, Federal University of Viçosa, Viçosa, Brazil; Centre for Development Research, University of Bonn, Bonn, Germany
推荐引用方式 GB/T 7714	Leite-Filho A.T.,Soares-Filho B.S.,Davis J.L.,et al. Deforestation reduces rainfall and agricultural revenues in the Brazilian Amazon[J],2021,12(1).
APA	Leite-Filho A.T.,Soares-Filho B.S.,Davis J.L.,Abrahão G.M.,&Börner J..(2021).Deforestation reduces rainfall and agricultural revenues in the Brazilian Amazon.Nature Communications,12(1).
MLA	Leite-Filho A.T.,et al."Deforestation reduces rainfall and agricultural revenues in the Brazilian Amazon".Nature Communications 12.1(2021).