干旱区生态环境知识资源中心(Arid): Spatiotemporal dynamics of soil moisture in the karst areas of China based on reanalysis and observations data

Arid

DOI	10.1016/j.jhydrol.2020.124744
	Spatiotemporal dynamics of soil moisture in the karst areas of China based on reanalysis and observations data
	Deng, Yuanhong 1,2,3; Wang, Shijie1,4 ; Bai, Xiaoyong 1,5,6; Luo, Guangjie 6; Wu, Luhua 1,3; Chen, Fei 1,7; Wang, Jinfeng 1,7; Li, Qin 1,3; Li, Chaojun 1,8; Yang, Yujie 1,8; Hu, Zeyin 1,3; Tian, Shiqi 1,8
通讯作者	Bai, Xiaoyong
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2020
卷号	585
英文摘要	Soil moisture is one of the restricting factors in a fragile karst ecological environment. However, its spatio-temporal evolution characteristics in the karst areas of China remain poorly understood. Thus, based on soil moisture from reanalysis (ERA-Interim product) and ground stations, this study used the Mann-Kendall test, the Theil-Sen slope estimator, sensitivity analysis and stepwise regression and obtained the following results: 1) ERA-Interim soil moisture well reflected the interannual change of observational soil moisture at 0-7, 7-28 and 28-100 cm. 2) The reanalysis and station data showed that soil at various depths in the karst areas was dominated by a drying trend in 1982-2015. 3) Soil moisture in karst areas of southern China was high but decreased fastest. In the karst areas of northern China, soil moisture was low and declined quickly. Nevertheless, soil wetting was observed in the central karst areas of Qinghai-Tibet Plateau. 4) Changes of soil moisture throughout the karst region of China and its subareas were mainly affected by precipitation, followed by temperature. 5) In Qinghai-Tibet Plateau and southern China, soil moisture in karst areas is overall higher than that in non-karst areas when under low vegetation coverage levels (NDVI <= 0.3) of some climate zones, possibly caused by the centralized allocation of precipitation in karst areas due to exposed rocks. In conclusion, climate, vegetation, and geological background make the spatiotemporal distributions of soil moisture differ within the karst region, while the soil drying trend in recent decades and global climate change are not conducive to the ecological restoration of vulnerable karst areas.
英文关键词	Karst Soil moisture China Climate NDVI Sensitivity analysis
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000544230000016
WOS关键词	ROCKY DESERTIFICATION ; TIBETAN PLATEAU ; LOESS PLATEAU ; WATER ; VEGETATION ; TRENDS ; RESTORATION ; VARIABILITY ; PATTERNS ; INCREASE
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319660
作者单位	1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, 99 Lincheng West Rd, Guiyang 550081, Peoples R China; 2.Chinese Acad Sci, Ctr Lunar & Planetary Sci, Inst Geochem, Guiyang 550081, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Chinese Acad Sci, Puding Karst Ecosyst Observat & Res Stn, Puding 562100, Peoples R China; 5.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Shaanxi, Peoples R China; 6.Guizhou Educ Univ, Guizhou Prov Key Lab Geog State Monitoring Waters, Guiyang 550018, Peoples R China; 7.Guizhou Univ, Coll Resources & Environm Engn, Guiyang 550025, Peoples R China; 8.Guizhou Normal Univ, Sch Geog & Environm Sci, Guiyang 550001, Guizhou, Peoples R China
推荐引用方式 GB/T 7714	Deng, Yuanhong,Wang, Shijie,Bai, Xiaoyong,et al. Spatiotemporal dynamics of soil moisture in the karst areas of China based on reanalysis and observations data[J],2020,585.
APA	Deng, Yuanhong.,Wang, Shijie.,Bai, Xiaoyong.,Luo, Guangjie.,Wu, Luhua.,...&Tian, Shiqi.(2020).Spatiotemporal dynamics of soil moisture in the karst areas of China based on reanalysis and observations data.JOURNAL OF HYDROLOGY,585.
MLA	Deng, Yuanhong,et al."Spatiotemporal dynamics of soil moisture in the karst areas of China based on reanalysis and observations data".JOURNAL OF HYDROLOGY 585(2020).