气候变化领域集成服务门户(CCPortal): Land use changes in Southeastern Amazon and trends in rainfall and water yield of the Xingu River during 1976

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DOI	10.1007/s10584-020-02736-z
	Land use changes in Southeastern Amazon and trends in rainfall and water yield of the Xingu River during 1976–2015
	Rizzo R.; Garcia A.S.; Vilela V.M.F.N.; Ballester M.V.R.; Neill C.; Victoria D.C.; da Rocha H.R.; Coe M.T.
发表日期	2020
ISSN	0165-0009
起始页码	1419
结束页码	1436
卷号	162 期号:3
英文摘要	Since the early 1970s, the agricultural frontier of southeastern Amazon has undergone extensive land use changes. These alterations, combined with regional climate changes, have the potential to influence the hydrologic cycle at small to large scales. We evaluated a 40-year time series (1976 to 2015) of rainfall and water yield and related them to land use changes in the Upper Xingu River Basin (UX). We acquired data from six rainfall stations and four river gauges and mapped land use changes. Mann-Kendall trend analysis and Pettitt’s change point detection were employed to describe annual and seasonal changes in the time series. Monthly water yield from the Xingu River was used to derive annual, seasonal, and monthly water yield, as well as the runoff coefficient. The largest changes in land use occurred during the last two decades and approximately 60,900 km2 in the Upper Xingu Basin were deforested between 1985 and 2015. Rainfall in the Xingu Basin decreased by about 245 mm over the period but there was no trend in water yield. The number of rainy days and intensity of events also decreased, but the length of the rainy season and seasonal and annual water yield did not change. Although watershed deforestation has increased water yield in other Amazon rivers, the reduction in rainfall in the Upper Xingu Basin was high enough to mask this effect. © 2020, Springer Nature B.V.
英文关键词	Amazônia; Climate change; Deforestation; Hydro-climatological indicators; Land use changes; Mann-Kendall analysis; Upper Xingu Basin
语种	英语
scopus关键词	Agricultural robots; Climate change; Deforestation; Rain; Rivers; Time series; Time series analysis; Annual water yields; Change point detection; Hydrologic cycles; Land-use change; Mann-Kendall trends; Regional climate changes; Runoff coefficients; Seasonal changes; Land use; deforestation; hydrological regime; land use change; rainfall; regional climate; time series analysis; trend analysis; water management; watershed; wet season; Brazil; Xingu Basin; Nia
来源期刊	Climatic Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147042
作者单位	Environmental Analysis and Geoprocessing Laboratory, Center for Nuclear Energy in Agriculture, University of São Paulo, Av. Centenário, 303, Piracicaba, SP 13416-000, Brazil; Woods Hole Research Center, 149 Woods Hole Road, Falmouth, MA 02540, United States; Embrapa Agricultural Informatics, Brazilian Agricultural Research Corporation, Campinas, SP 13070, Brazil; Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, São Paulo, Brazil
推荐引用方式 GB/T 7714	Rizzo R.,Garcia A.S.,Vilela V.M.F.N.,等. Land use changes in Southeastern Amazon and trends in rainfall and water yield of the Xingu River during 1976–2015[J],2020,162(3).
APA	Rizzo R..,Garcia A.S..,Vilela V.M.F.N..,Ballester M.V.R..,Neill C..,...&Coe M.T..(2020).Land use changes in Southeastern Amazon and trends in rainfall and water yield of the Xingu River during 1976–2015.Climatic Change,162(3).
MLA	Rizzo R.,et al."Land use changes in Southeastern Amazon and trends in rainfall and water yield of the Xingu River during 1976–2015".Climatic Change 162.3(2020).