干旱区生态环境知识资源中心(Arid): Simulation of Morphological Development of Soil Cracks in Yuanmou Dry-hot Valley Region, Southwest China

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	Simulation of Morphological Development of Soil Cracks in Yuanmou Dry-hot Valley Region, Southwest China
	Xiong Donghong; Yan Dongchun; Long Yi; Lu Xiaoning; Han Jianning; Han Xueqin; Shi Liangtao
来源期刊	Chinese Geographical Science
ISSN	1002-0063
出版年	2010
卷号	20 期号:2 页码:112-122
英文摘要	Soil cracking is an important process influencing water and solutes transport in the Yuanmou Dry-hot Valley region of Southwest China. Studying the morphological development of soil cracks helps to further reveal the close relationship between the soil cracking process and water movement in such semi-arid regions. Here we report regular changes on surface morphology of soil cracks with decreasing water in four different soils (Typ-Ustic Ferrisols,Ver-Ustic Ferrisols,Tru-Ustic Vertisols and Typ-Ustic Vertisols) through simulation experiments. Our results indicate the following: 1) Different soils ultimately have different development degrees of soil cracks,according to their various values of crack area density. Soil cracks in Typ-Ustic Ferrisols can only develop to the feeble degree,while those in the other three soils are capable of developing into the intensive degree,and even into the extremely intensive degree. 2) Soil crack complexity,as expressed by the value of the area-weighted mean of crack fractal dimension (AWMFRAC),is found to continuously decrease as a whole through the whole cracking process in all the studied soils. 3) Soil crack connectivity shows a uniform trend in the studied soils,that is to say,connectivity gradually increases with soil crack development.
英文关键词	soil cracks morphological development simulation experiment Yuanmou Dry-hot Valley region Southwest China
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:3889742
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335053
作者单位	Xiong Donghong, Institute of Mountain Hazards and Environment,Chinese Academy of Sciences, Key Laboratory of Mountain Hazards and Surface Process,Chinese Academy of Sciences, Chengdu, Sichuan 610041, China.; Yan Dongchun, Institute of Mountain Hazards and Environment,Chinese Academy of Sciences, Key Laboratory of Mountain Hazards and Surface Process,Chinese Academy of Sciences, Chengdu, Sichuan 610041, China.; Long Yi, Institute of Mountain Hazards and Environment,Chinese Academy of Sciences, Key Laboratory of Mountain Hazards and Surface Process,Chinese Academy of Sciences, Chengdu, Sichuan 610041, China.; Lu Xiaoning, Department of Environmental Engineering,Chengdu University of Information Technology, Chengdu, Sichuan 610225, China.; Han Jianning, Department of Environmental Engineering,Chengdu University of Information Technology, Chengdu, Sichuan 610225, China.; Han Xueqin, Institute of Tropical Eco-agricultural Sciences,Yunnan Academy of Agricultural Sciences, Yuanmou, Yunnan 651300, China.; Shi Lia...
推荐引用方式 GB/T 7714	Xiong Donghong,Yan Dongchun,Long Yi,et al. Simulation of Morphological Development of Soil Cracks in Yuanmou Dry-hot Valley Region, Southwest China[J],2010,20(2):112-122.
APA	Xiong Donghong.,Yan Dongchun.,Long Yi.,Lu Xiaoning.,Han Jianning.,...&Shi Liangtao.(2010).Simulation of Morphological Development of Soil Cracks in Yuanmou Dry-hot Valley Region, Southwest China.Chinese Geographical Science,20(2),112-122.
MLA	Xiong Donghong,et al."Simulation of Morphological Development of Soil Cracks in Yuanmou Dry-hot Valley Region, Southwest China".Chinese Geographical Science 20.2(2010):112-122.