Quantitative Analysis of the Influencing Factors and Their Interactions in Runoff Generation in a Karst Basin of Southwestern China

doi:10.3390/w12102898

	Quantitative Analysis of the Influencing Factors and Their Interactions in Runoff Generation in a Karst Basin of Southwestern China
	Hou, Wenjuan 1; Gao, Jiangbo 1; Wu, Shaohong 1,2
刊名	WATER
	2020-10-01
卷号	12 期号:10 页码:16
关键词	runoff generation single factor influence factor interactions different geomorphic type Karst basin
DOI	10.3390/w12102898
通讯作者	Gao, Jiangbo(gaojiangbo@igsnrr.ac.cn)
英文摘要	The unique geological conditions of karst regions create highly heterogeneous habitat characteristics, and the addition of human disturbance results in rocky desertification. Water and soil loss are the core questions, and moreover, runoff is the key factor in this process. To further investigate these problems, a typical karst peak cluster depression in southwestern China was selected for this study. Based on the optimal simulation of the runoff yield and flow in this area, the factor detectors and interaction detectors in the geographical detector method were used to quantitatively analyze the factors influencing runoff and their interactions for different geomorphic types. The results show that: (1) the three main factors influencing the total river runoff, surface runoff, and groundwater are landscape fragmentation, land use type, and precipitation, but the ranking of these main influencing factors in each geomorphic type region exists different; (2) the dominant factor in the relatively higher elevation regions is precipitation; (3) the interaction detector results reveal that the interactions between factors enhance the overall influence of a single factor on the runoff generation in all of the geomorphic type regions, including two interaction types of nonlinear enhancement and bifactor enhancement; and (4) the interactions between the factors in the middle elevation plain, middle elevation terrace, and middle relief mountain regions are stronger than those in the middle elevation hill and small relief mountain regions. Quantitative analysis of the factors influencing runoff in karst areas cannot only promote optimization of the water and soil services, but it also provides a scientific basis for improving the comprehensive treatment of rocky desertification.
资助项目	National Natural Science Foundation of China[41671098] ; National Natural Science Foundation of China[41807168] ; National Natural Science Foundation of China[42071288] ; National Key Research and Development Program of China[2018YFC1508900] ; National Key Research and Development Program of China[2018YFC1508801] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20020202]
WOS关键词	ROCKY DESERTIFICATION ; LAND-USE ; SURFACE RUNOFF ; CLIMATE-CHANGE ; BARE SLOPES ; IMPACTS ; AREA ; SOIL ; REGION ; MODEL
WOS研究方向	Water Resources
语种	英语
出版者	MDPI
WOS记录号	WOS:000582847800001
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/156753]
专题	中国科学院地理科学与资源研究所
通讯作者	Gao, Jiangbo
作者单位	1.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Hou, Wenjuan,Gao, Jiangbo,Wu, Shaohong. Quantitative Analysis of the Influencing Factors and Their Interactions in Runoff Generation in a Karst Basin of Southwestern China[J]. WATER,2020,12(10):16.
APA	Hou, Wenjuan,Gao, Jiangbo,&Wu, Shaohong.(2020).Quantitative Analysis of the Influencing Factors and Their Interactions in Runoff Generation in a Karst Basin of Southwestern China.WATER,12(10),16.
MLA	Hou, Wenjuan,et al."Quantitative Analysis of the Influencing Factors and Their Interactions in Runoff Generation in a Karst Basin of Southwestern China".WATER 12.10(2020):16.