GSTDTAP  > 气候变化
DOI10.1029/2018JD029537
Effects of Deforestation on the Onset of the Rainy Season and the Duration of Dry Spells in Southern Amazonia
Leite-Filho, Argemiro Teixeira; de Sousa Pontes, Veronica Yamee; Costa, Marcos Heil
2019-05-27
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
出版年2019
卷号124期号:10页码:5268-5281
文章类型Article
语种英语
国家Brazil
英文摘要

Amazonian deforestation is causing notable changes in the hydrological cycle by altering important precipitation characteristics. This study uses daily rainfall time series data from 112 rain gauges and a recent yearly 1-km land use data set covering the period from 1974 to 2012 to evaluate the effects of the extent of deforestation at different spatial scales on the onset of the rainy season and on the duration of dry spells in southern Amazonia. Correlation analyses indicate a delay in the onset of 0.12-0.17days per percent increase in deforestation. Analysis of cumulative probability density functions emphasizes that the likelihood of rainy season onset occurring earlier than normal decreases as the local deforestation fraction increases. In addition, the probability of occurrence of dry spells in the early and late rainy season is higher in areas with greater deforestation. The delayed onset and longer dry spell events in highly deforested areas increase the climate risk to agriculture in the region.


英文关键词Amazonia deforestation land-atmosphere interaction rainy season dry spell
领域气候变化
收录类别SCI-E
WOS记录号WOS:000471237200008
WOS关键词RAINFALL ; MITIGATION ; CLIMATE ; FUTURE ; BASIN ; CIRCULATION ; PATTERNS ; AMERICA ; DROUGHT ; DECADES
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/183341
专题气候变化
作者单位Univ Fed Vicosa, Dept Agr Engn, Vicosa, MG, Brazil
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GB/T 7714
Leite-Filho, Argemiro Teixeira,de Sousa Pontes, Veronica Yamee,Costa, Marcos Heil. Effects of Deforestation on the Onset of the Rainy Season and the Duration of Dry Spells in Southern Amazonia[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(10):5268-5281.
APA Leite-Filho, Argemiro Teixeira,de Sousa Pontes, Veronica Yamee,&Costa, Marcos Heil.(2019).Effects of Deforestation on the Onset of the Rainy Season and the Duration of Dry Spells in Southern Amazonia.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(10),5268-5281.
MLA Leite-Filho, Argemiro Teixeira,et al."Effects of Deforestation on the Onset of the Rainy Season and the Duration of Dry Spells in Southern Amazonia".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.10(2019):5268-5281.
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