干旱区生态环境知识资源中心(Arid): A quantitative assessment of hydrological responses to climate change and human activities at spatiotemporal within a typical catchment on the Loess Plateau, China

Arid

DOI	10.1016/j.quaint.2019.03.027
	A quantitative assessment of hydrological responses to climate change and human activities at spatiotemporal within a typical catchment on the Loess Plateau, China
	Lyu, Jiqiang; Mo, Shuhong; Luo, Pingping; Zhou, Meimei; Shen, Bing; Nover, Daniel
通讯作者	Luo, PP (corresponding author), Changan Univ, Sch Environm Sci & Engn, Xian 710064, Shaanxi, Peoples R China.
来源期刊	QUATERNARY INTERNATIONAL
ISSN	1040-6182
EISSN	1873-4553
出版年	2019
卷号	527 页码:1-11
英文摘要	It is important to understand the relative contributions of climate change and human activities to changes in runoff to sustainably manage water resources in the arid Loess Plateau, China. In this study, Chabagou River Basin in the central arid region of the Loess Plateau was selected to investigate changes in runoff, within which a series of soil conservation measures have been implemented since the late 1950s. We applied the non-parametric Kendall test (MK) and the Bayesian change point (BCP) method to identify trends and potential change points in hydro-meteorological data sequences. The results of the MK test revealed no significantly abrupt variation has been detected in annual hydro-meteorological data sequences, while a number of potential change points were identified using the BCP method applying different posterior probabilities. We also systematically review two commonly applied quantitative methods that draw on both empirical statistics and hydrological modeling to quantify the impact of climate change, human activities and meteorological variation on mean annual runoff at spatiotemporal scales based on precipitation, evapotranspiration, runoff-precipitation coefficients, and soil water throughout the river basin. The results of this study show that climate change and normal climate variability are responsible for about 80% of the decrease in runoff, mainly due to reduced precipitation, while human activities was responsible for < 20% of reductions in runoff. The results also show that soil conservation measures have influenced hydrological processes at spatiotemporal and that runoff within the Chabagou River Basin (CRB) is more sensitive to spatial distribution of soil conservation measures than meteorological factors. The relative contributions to runoff variations that derive from climate change, human activities and meteorological variation were calculated in this study, but interactions between climate change and human activities is complex, and not easy to be separated.
英文关键词	Hydrological response Loess plateau Climate change Human activity Arid region Spatiotemporal
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000495356900001
WOS关键词	RIVER-BASIN ; VARIABILITY ; STREAMFLOW ; IMPACT ; MODEL ; EVAPOTRANSPIRATION ; EROSION ; RUNOFF ; FLOW
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369274
作者单位	[Lyu, Jiqiang; Luo, Pingping; Zhou, Meimei] Changan Univ, Sch Environm Sci & Engn, Xian 710064, Shaanxi, Peoples R China; [Lyu, Jiqiang; Luo, Pingping; Zhou, Meimei] Changan Univ, Minist Educ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Xian, Shaanxi, Peoples R China; [Mo, Shuhong; Shen, Bing] Xian Univ Technol, State Key Lab Base Ecohydraul Arid Area, Xian 710048, Shaanxi, Peoples R China; [Nover, Daniel] Univ Calif Merced, Sch Engn, 5200 Lake R, Merced, CA 95343 USA
推荐引用方式 GB/T 7714	Lyu, Jiqiang,Mo, Shuhong,Luo, Pingping,et al. A quantitative assessment of hydrological responses to climate change and human activities at spatiotemporal within a typical catchment on the Loess Plateau, China[J],2019,527:1-11.
APA	Lyu, Jiqiang,Mo, Shuhong,Luo, Pingping,Zhou, Meimei,Shen, Bing,&Nover, Daniel.(2019).A quantitative assessment of hydrological responses to climate change and human activities at spatiotemporal within a typical catchment on the Loess Plateau, China.QUATERNARY INTERNATIONAL,527,1-11.
MLA	Lyu, Jiqiang,et al."A quantitative assessment of hydrological responses to climate change and human activities at spatiotemporal within a typical catchment on the Loess Plateau, China".QUATERNARY INTERNATIONAL 527(2019):1-11.