The regional difference in engineering-control and tillage factors of Chinese Soil Loss Equation

doi:10.1007/s11629-020-6268-z

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 科技与合作处

	The regional difference in engineering-control and tillage factors of Chinese Soil Loss Equation
	Chen, Rui-yin 1,2; Yan, Dong-chun 2; Wen, An-bang 2; Shi, Zhong-lin 2; Chen, Jia-cun 1,2; Liu, Yuan 1,2; Chen, Tai-li 1,2
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2021-02-15
页码	13
关键词	Engineering-control factor Tillage factor Runoff plot Soil and water conservation regions Geodetector
ISSN号	1672-6316
DOI	10.1007/s11629-020-6268-z
英文摘要	Accurate assessment of soil erosion is an important prerequisite for controlling soil erosion. The engineering-control (E) and tillage (T) factors are the keys for Chinese Soil Loss Equation (CSLE) to accurately evaluate water erosion in China. Besides, the E and T factors can reflect the water and soil conservation effects of engineering-control and tillage practices. But in the current full coverage of soil erosion surveys in China (such as soil erosion dynamic monitoring), for the same practice, the E or T factors are assigned the same value across the country. We selected 469 E and T factors data based on runoff plots from 73 publications, and they came from six soil and water conservation regions. Correlation analysis, regression analysis, and nonparametric tests were used to determine the comparability of the data, and it was proved that the runoff plots dimensions are consistent with the local topography. The results of one-way ANOVA and nonparametric tests for E and T factors in different regions showed that the engineering-control practices have good soil and water conservation effects and weaken the regional differences of other environmental factors, so there were no significant differences in E factors between different regions. However, there were significant differences in T factors between different regions, and the geodetector was applied to explore the intrinsic driving force of the spatial distribution of T factors. The results of the geodetector showed that the dominant driving forces of the spatial distribution of different types of tillage practices were not completely the same. When using CSLE to calculate water erosion, the E factor of the same practice can be used uniformly throughout the country, and the T factor needs to be considered and selected according to regional differences. At the same time, when choosing tillage practices in each water and soil conservation region, practices with better sediment reduction benefits should also be selected according to the regional environmental conditions.
资助项目	National Key R&D Program of China[2016YFC0402301-02]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000618150000003
资助机构	National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/55944]
专题	科技与合作处成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者	Yan, Dong-chun
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
推荐引用方式 GB/T 7714	Chen, Rui-yin,Yan, Dong-chun,Wen, An-bang,et al. The regional difference in engineering-control and tillage factors of Chinese Soil Loss Equation[J]. JOURNAL OF MOUNTAIN SCIENCE,2021:13.
APA	Chen, Rui-yin.,Yan, Dong-chun.,Wen, An-bang.,Shi, Zhong-lin.,Chen, Jia-cun.,...&Chen, Tai-li.(2021).The regional difference in engineering-control and tillage factors of Chinese Soil Loss Equation.JOURNAL OF MOUNTAIN SCIENCE,13.
MLA	Chen, Rui-yin,et al."The regional difference in engineering-control and tillage factors of Chinese Soil Loss Equation".JOURNAL OF MOUNTAIN SCIENCE (2021):13.