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Evaluating the Impacts of Climate Change and Vegetation Restoration on the Hydrological Cycle over the Loess Plateau, China

文献类型：期刊论文

作者Yang, Shuai1,2; Kang, Tingting1,2; Bu, Jingyi1,2; Chen, Jiahao1,2; Gao, Yanchun1
刊名WATER
出版日期2019-11-01
卷号11期号:11页码:24
关键词attribution scenario simulation vegetation conversions VIC model hydrological variables
DOI10.3390/w11112241
通讯作者Gao, Yanchun(gaoyanc@igsnrr.ac.cn)
英文摘要In recent decades, both observation and simulation data have demonstrated an obvious decrease in runoff and soil moisture, with increasing evapotranspiration, over the Loess Plateau. In this study, we employed a Variable Infiltration Capacity model coupled with scenario simulation to explore the impact of change in climate and land cover on four hydrological variables (HVs) over the Loess Plateau, i.e., evapotranspiration (ET), runoff (Runoff), shallow soil moisture (SM1), and deep soil moisture (SM2). Results showed precipitation, rather than temperature, had the closest relationship with the four HVs, with r ranging from 0.76 to 0.97 (p < 0.01), and this was therefore presumed to be the dominant climate-based driving factor in the variation of hydrological regimes. Vegetation conversion, from cropland and grassland to woodland, significantly reduced runoff and increased soil moisture consumption, to sustain an increased ET, and, assuming that the reduction of SM2 is entirely evaporated, we can attribute 71.28% +/- 18.64%, 65.89% +/- 24.14% of the ET increase to the water loss of SM2 in the two conversion modes, respectively. The variation in HVs, induced by land cover change, were higher than the expected climate change with respect to SM1, while different factors were selected to determine HVs variation in six catchments, due to differences in the mode and intensity of vegetation conversion, and the degree of climate change. Our findings are critical for understanding and quantifying the impact of climate change and vegetation conversions, and provide a further basis for the design of water resources and land-use management strategies with respect to climate change, especially in the water-limited Loess Plateau.
WOS关键词LAND-SURFACE MODEL ; YELLOW-RIVER BASIN ; DRIED SOIL LAYERS ; MOISTURE DECLINE ; MIDDLE REACHES ; VIC-2L MODEL ; WATER ; RUNOFF ; RESPONSES ; REGION
资助项目National Key Project for Research and Development of China[2016YFC0501605]
WOS研究方向Water Resources
语种英语
WOS记录号WOS:000502264500043
出版者MDPI
资助机构National Key Project for Research and Development of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/130739]  
专题中国科学院地理科学与资源研究所
通讯作者Gao, Yanchun
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Shuai,Kang, Tingting,Bu, Jingyi,et al. Evaluating the Impacts of Climate Change and Vegetation Restoration on the Hydrological Cycle over the Loess Plateau, China[J]. WATER,2019,11(11):24.
APA Yang, Shuai,Kang, Tingting,Bu, Jingyi,Chen, Jiahao,&Gao, Yanchun.(2019).Evaluating the Impacts of Climate Change and Vegetation Restoration on the Hydrological Cycle over the Loess Plateau, China.WATER,11(11),24.
MLA Yang, Shuai,et al."Evaluating the Impacts of Climate Change and Vegetation Restoration on the Hydrological Cycle over the Loess Plateau, China".WATER 11.11(2019):24.

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来源：地理科学与资源研究所

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