Evaluating of the spatial heterogeneity of soil loss tolerance and its effects on erosion risk in the carbonate areas of southern China
Yue Li,Xiao Yong Bai,Shi Jie Wang,Luo Yi Qin,Yi Chao Tian,and Guang Jie Luo
Yue Li
State Key Laboratory of Environmental Geochemistry, Institute of
Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou, 550002, PR
China
Puding Comprehensive Karst Research and Experimental Station,
Institute of Geochemistry, CAS and Science and Technology Department of
Guizhou Province, Puding, Guizhou, 562100, PR China
State Key Laboratory of Environmental Geochemistry, Institute of
Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou, 550002, PR
China
Puding Comprehensive Karst Research and Experimental Station,
Institute of Geochemistry, CAS and Science and Technology Department of
Guizhou Province, Puding, Guizhou, 562100, PR China
Institute of Mountain Hazards and Environment, Chinese Academy of
Sciences,Chengdu, Sichuan, 610041, PR China
Shi Jie Wang
State Key Laboratory of Environmental Geochemistry, Institute of
Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou, 550002, PR
China
Puding Comprehensive Karst Research and Experimental Station,
Institute of Geochemistry, CAS and Science and Technology Department of
Guizhou Province, Puding, Guizhou, 562100, PR China
Luo Yi Qin
State Key Laboratory of Environmental Geochemistry, Institute of
Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou, 550002, PR
China
Puding Comprehensive Karst Research and Experimental Station,
Institute of Geochemistry, CAS and Science and Technology Department of
Guizhou Province, Puding, Guizhou, 562100, PR China
Yi Chao Tian
State Key Laboratory of Environmental Geochemistry, Institute of
Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou, 550002, PR
China
Graduate School of Chinese Academy of Sciences, Beijing 100029, PR
China
Guang Jie Luo
State Key Laboratory of Environmental Geochemistry, Institute of
Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou, 550002, PR
China
Graduate School of Chinese Academy of Sciences, Beijing 100029, PR
China
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First, we report the following discovery: T values are spatially heterogeneous, and a minimum of three criteria should be considered instead of only a single criterion in karst areas. In fact, our findings disprove the old “one region, one T value” concept.
Second, we proposed a new viewpoint: in karst regions, a large soil erosion modulus does not correspond to severe soil erosion. Although T value can reflect soil sensitivity, this value cannot indicate soil erosion risk.
First, we report the following discovery: T values are spatially heterogeneous, and a minimum of...
