干旱区生态环境知识资源中心(Arid): Monitoring and predicting the soil water content in the deeper soil profile of Loess Plateau, China

Arid

	Monitoring and predicting the soil water content in the deeper soil profile of Loess Plateau, China
	Wang Aijuan; Liu Baoyuan; Wang Zhiqiang; Liu Gang
来源期刊	International Soil and Water Conservation Research
ISSN	2095-6339
出版年	2016
卷号	4 期号:1 页码:6-11
英文摘要	Estimation of soil water content (SWC) in deep soil profiles is of crucial importance for strategic management of water resource for sustainable land use in arid and semi-arid zones, as well as for soil and water conservation. Soil properties have a very important effect on SWC. This study aimed to analyze the influence of soil particle size on SWC, for the first time using soil particle size to estimate SWC in deep soil profiles. SWC was measured mainly in farmland, natural grasslands and plantations of Caragana from the surface to more than 20 m depth. The same soil samples were also tested for particle size. The results show that the soil desiccation is formed in the caragana forest in 3-18 m soil layers, but almost no formation in 18-24 m layers; water content of farmland and grassland is different in all soil profiles although they are both shallow rooted plants. Correlation analysis indicated that SWC could be well predicted by clay content and the close correlation between SWC and clay content yielded a coefficient of determination (R~2) of 0.82 and 0.72, respectively, for farmland and grassland. After multiple regression analysis, a regression model was built using SWC, clay content and sand content data, giving R~2=0.66. The model provided reliable estimates of SWC profile based on textural class. This can assist in estimating water depletion by vegetation, by comparing moisture of farmland and grassland soils with that of plantation forests, and in selecting sustainable land use of arid land.
英文关键词	Clay content Field capacity Sand content Soil water content (SWC) Soil particle size
类型	Review
语种	英语
开放获取类型	DOAJ Gold
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:5697778
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335644
作者单位	Wang Aijuan, Center of Soil and Water Conservation Monitoring, Ministry of Water Resources, Floor 10, Block A, Guidu International Center, Beijing 100055, China.; Liu Baoyuan, School of Geography, Beijing Normal University, Beijing 100875, China.; Wang Zhiqiang, School of Geography, Beijing Normal University, Beijing 100875, China.; Liu Gang, School of Geography, Beijing Normal University, Beijing 100875, China.
推荐引用方式 GB/T 7714	Wang Aijuan,Liu Baoyuan,Wang Zhiqiang,et al. Monitoring and predicting the soil water content in the deeper soil profile of Loess Plateau, China[J],2016,4(1):6-11.
APA	Wang Aijuan,Liu Baoyuan,Wang Zhiqiang,&Liu Gang.(2016).Monitoring and predicting the soil water content in the deeper soil profile of Loess Plateau, China.International Soil and Water Conservation Research,4(1),6-11.
MLA	Wang Aijuan,et al."Monitoring and predicting the soil water content in the deeper soil profile of Loess Plateau, China".International Soil and Water Conservation Research 4.1(2016):6-11.