Selection of judging indicators for surface morphology of soil crack under different development degrees in Yuanmou arid-hot valley region |
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| Authors: | Donghong Xiong Xiaoning Lu Jishen Xian Hongyi Zhou Zhong Yang |
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| Affiliation: | [1]Key Laboratory of Mountain Hazards and Surface Process/Institute of Mountain Hazards and Environment, Chinese Academy ofSciences, Chengdu 610041, Sichuan, China; [2]Graduate University of Chinese Academy of Sciences, Beijing100049, China; [3]Department of Environmental Engineering, Chengdu Universityof Information Technology, Chengdu 610225, Sichuan, China |
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| Abstract: | Quantification of complicated surface morphology of soil crack is a prerequisite and key to soil crack study. This paper takes soil crack quads in Yanmou arid-hot valley region as examples, selecting several morphological indicators, and analyzes the soil crack’s morphological features under various development degrees. By statistic analysis, three quantitative indicators for surface morphology are selected, namely soil crack area density, area weighted mean fractal dimension and connectivity index R, which can not only express the development intensity of soil cracks, but also effectively describe its morphological complexity and connectivity. The research results set a good base for the establishment of soil crack assessment system in Yuanmou arid-hot valley region. Biography: XIONG Donghong (1974–), male, Assistant researcher, Ph. D. candidate, research direction: soil moisture, soil quality and vegetation restoration. |
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| Keywords: | soil crack surface morphology complexity connectivity judging indicators Yuanmou arid-hot valley region |
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