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摘要： 近年来黄土高原下垫面情况变化巨大，将多源数据应用于水储量变化研究可进一步揭示该区域水循环过程。利用GRACE数据研究了2003~2015年黄土高原地区陆地水储量变化(TWSC)的时空分布特征，结合大气环流数据、TRMM(3B43)降水、GLDAS蒸散发和MODIS地表温度数据分析了气候变化和人类活动对TWSC的影响。结果表明：①2003~2015年黄土高原TWSC整体表现为下降趋势，下降速率约为-5.16±1.51 mm/a，季节变化表现为秋季>冬季>夏季>春季的下降趋势。②过去13 a黄土高原TWSC在空间上表现为自西向东减少，整体处于亏损状态，最小值可达-4.5 cm。③降水对黄土高原西南部、南部的TWSC有影响较大，地表温度对黄土高原东南部、东部的TWSC影响较大。④人类活动对山西和陕晋豫交界地带的TWSC影响较大。利用多源数据对比研究可以较准确地反映该区域水储量变化的时空分布情况，对水循环机理的进一步研究有较大帮助。 关键词： 黄土高原;  TWSC;  气候变化;  人类活动     Abstract: In recent years，the conditions of the underlying surface of the Loess Plateau have changed greatly.We researched the changes of water storage by using multi-source data to further reveal the region’s water cycle process.GRACE data were used to study the temporal and spatial characteristics of Terrestrial Water Storage Changes (TWSC) in the Loess Plateau for 2003~2015 years，combined with the atmospheric circulation data，TRMM (3B43) precipitation，GLDAS evaporation and MODIS surface temperature data to analyze the impact of climate change and human activities on TWSC.The results shown that：①in the 2003~2015 years，the TWSC of Loess Plateau showed a decreasing trend with the rate of -5.16±1.51 mm/a，and the seasonal variation shown autumn＞winter＞summer＞spring.②in the past 13 years，the TWSC of Loess Plateau were decreasing from west to east，and the whole were in the state of loss，the minimum value was up to -4.5 cm.③Precipitation has a greater influence on the TWSC in the southwest and south of Loess Plateau，but the surface temperature plays dominated role in the southeast and east.④Human activities have a greater impact on TWSC in Shanxi province and the border zone of Shaanxi，Shanxi and Henan.The comparative study of multi-source data can more accurately reflect the spatial and temporal distribution of water storage changes in the region，and it also have great significant for further research of water cycle process.

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