Land use changes in Southeastern Amazon and trends in rainfall and water yield of the Xingu River during 1976–2015
Land use changes in Southeastern Amazon and trends in rainfall and water yield of the Xingu River during 1976–2015
复制标题
1976年至2015年亚马逊东南部土地利用变化及辛古河降雨量和产水量趋势
DOI:
10.1007/s10584-020-02736-z
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发表时间:
2020
期刊:
影响因子:
4.8
通讯作者:
Coe, Michael T.
中科院分区:
文献类型:
--
作者:
Rizzo, Rodnei;Garcia, Andrea S.;Vilela, Vívian M.;Ballester, Maria Victoria;Neill, Christopher;Victoria, Daniel C.;da Rocha, Humberto R.;Coe, Michael T.
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 km2in 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.
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DOI:
--
发表时间:
2013
期刊:
Philosophical Transactions of the Royal Society B: Biological Sciences
影响因子:
--
作者:
C. Neill;M. Coe;S. Riskin;A. Krusche;H. Elsenbeer;M. Macedo;R. McHorney;P. Lefebvre;E. Davidson;Raphael Scheffler;A. Figueira;S. Porder;L. Deegan
通讯作者:
L. Deegan
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
J. Siqueira;L. Machado
通讯作者:
L. Machado
影响因子:
5.2
作者:
G. Pires;M. H. Costa
通讯作者:
M. H. Costa
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
S. I. Saad;H. Rocha;M. Dias;R. Rosolem
通讯作者:
R. Rosolem
影响因子:
2.7
作者:
M. Coe;M. Macedo;P. Brando;P. Lefebvre;P. Panday;D. Silvério
通讯作者:
D. Silvério