干旱区生态环境知识资源中心(Arid): Probabilistic modeling of soil moisture dynamics in a revegetated desert area

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	Probabilistic modeling of soil moisture dynamics in a revegetated desert area
	Huang Lei; Zhang Zhishan; Chen Yongle
来源期刊	Sciences in Cold and Arid Regions
ISSN	1674-3822
出版年	2013
卷号	5 期号:2 页码:205-210
英文摘要	Soil moisture is the key link between land hydrological and ecological processes which plays an important role in the terrestrial water cycle. As extreme weather events have increased in recent years, the stochastic simulation of soil moisture has gradually become the focus of ecohydrology research. Based on continuous monitoring of soil moisture data from 2008 to 2011, and historical precipitation data from 1991 to 2011, combined with the Rodriguez-Iturbe soil moisture dynamic stochastic model, soil moisture dynamics and its probability density function in a revegetated desert area was simulated. Results show that annual soil moisture dynamic changes of the revegetated desert area during the growing season complied with rainfall distribution; soil moisture probability presents a single-peak distribution in the plant rhizosphere layer (0-60 cm). The peak width in the 20 cm topsoil was wider than in other soils, and the distribution presented the strong fluctuations and multiple aggregates. The peak widths of 40 cm and 60 cm soil moisture probability distribution were small, which are in accordance with simulated results of the Rodriguez-Iturbe model. This confirms that the Rodriguez-Iturbe model has good applicability and can well simulate the statistical characteristics of soil moisture in an arid revegetated desert area.
英文关键词	revegetated desert area soil moisture Rodriguez-Iturbe model probability density functions
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:4906324
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335228
作者单位	Huang Lei, Shapotou Desert Research and Experiment Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Zhang Zhishan, Shapotou Desert Research and Experiment Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Chen Yongle, Shapotou Desert Research and Experiment Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.
推荐引用方式 GB/T 7714	Huang Lei,Zhang Zhishan,Chen Yongle. Probabilistic modeling of soil moisture dynamics in a revegetated desert area[J],2013,5(2):205-210.
APA	Huang Lei,Zhang Zhishan,&Chen Yongle.(2013).Probabilistic modeling of soil moisture dynamics in a revegetated desert area.Sciences in Cold and Arid Regions,5(2),205-210.
MLA	Huang Lei,et al."Probabilistic modeling of soil moisture dynamics in a revegetated desert area".Sciences in Cold and Arid Regions 5.2(2013):205-210.