The Contribution of Astragalus adsurgens Roots and Canopy to Water Erosion Control in the Water-Wind Crisscrossed Erosion Region of the Loess Plateau, China

doi:10.1002/ldr.2508

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	The Contribution of Astragalus adsurgens Roots and Canopy to Water Erosion Control in the Water-Wind Crisscrossed Erosion Region of the Loess Plateau, China
	Xu, Zhen 1; Zhao, Chunhong 1,2; Gao, Jian'en 1,3; Huang, Yuefei 2; Wang, Guangqian 2; Gao, JE (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China.
刊名	LAND DEGRADATION & DEVELOPMENT
	2017
卷号	28 期号:1 页码:265-273
关键词	Root And Canopy Soil Erosion Soil Resistance To Erosion Water-wind Crisscrossed Erosion Region Astragalus Adsurgens
ISSN号	1085-3278
DOI	10.1002/ldr.2508
文献子类	Article
英文摘要	Simulated rainfall experiments were conducted to investigate the effect of Astragalus adsurgens roots and canopy on water erosion yield, erosion processes and soil resistance to erosion. Experiments were conducted on grass, root and bare slopes, with sandy soil from a water-wind crisscrossed erosion region of the Loess Plateau, China. A. adsurgens coverage on grass slopes was approximately 40%. There were three rainfall intensities of 30, 60 and 90mmh(-1) and four slope gradients of 3, 6, 9 and 12 degrees. A. adsurgens had a significant effect on soil erosion control; soil loss was reduced by similar to 70% on slopes with the grass compared with bare slopes. The grass roots reduced soil loss more than its canopy, particularly in high-intensity rainfall, which reduced soil loss by 82%. The presence of the grass and its roots changed the soil erosion process, reducing soil erodibility (K-r) and increasing the critical shear stress ((c)). The soil erosion rate on the bare slope increased steadily over time; on the grass and root slopes, its rate initially increased, then decreased and then finally stabilized. K-r on the grass and root slopes was reduced by 96% and 89%, respectively, compared with the bare slope, while the corresponding (c) increased by 92% and 195% respectively. These results provide insights into the mechanisms of grass on soil and water conservation and may help to improve vegetation construction in water-wind crisscrossed erosion regions of the Loess Plateau. Copyright (c) 2016 John Wiley & Sons, Ltd.
学科主题	Environmental Sciences & Ecology ; Agriculture
URL标识	查看原文
出版地	HOBOKEN
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000393800400025
资助机构	China Postdoctoral Science Foundation [2015M570117]; National Natural Science Foundation of China [41371276]; National Technology Support Project [2011BAD31B05]; Science and Technology Innovation Project of Shaanxi Province, China [2013KTDZ03-03-01] ; China Postdoctoral Science Foundation [2015M570117]; National Natural Science Foundation of China [41371276]; National Technology Support Project [2011BAD31B05]; Science and Technology Innovation Project of Shaanxi Province, China [2013KTDZ03-03-01] ; China Postdoctoral Science Foundation [2015M570117]; National Natural Science Foundation of China [41371276]; National Technology Support Project [2011BAD31B05]; Science and Technology Innovation Project of Shaanxi Province, China [2013KTDZ03-03-01] ; China Postdoctoral Science Foundation [2015M570117]; National Natural Science Foundation of China [41371276]; National Technology Support Project [2011BAD31B05]; Science and Technology Innovation Project of Shaanxi Province, China [2013KTDZ03-03-01]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/8075]
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Gao, JE (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Peoples R China.
作者单位	1.Northwest A&F Univ, Yangling 712100, Peoples R China 2.Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China 3.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Peoples R China 4.Minist Water Resources, Yangling 712100, Peoples R China
推荐引用方式 GB/T 7714	Xu, Zhen,Zhao, Chunhong,Gao, Jian'en,et al. The Contribution of Astragalus adsurgens Roots and Canopy to Water Erosion Control in the Water-Wind Crisscrossed Erosion Region of the Loess Plateau, China[J]. LAND DEGRADATION & DEVELOPMENT,2017,28(1):265-273.
APA	Xu, Zhen,Zhao, Chunhong,Gao, Jian'en,Huang, Yuefei,Wang, Guangqian,&Gao, JE .(2017).The Contribution of Astragalus adsurgens Roots and Canopy to Water Erosion Control in the Water-Wind Crisscrossed Erosion Region of the Loess Plateau, China.LAND DEGRADATION & DEVELOPMENT,28(1),265-273.
MLA	Xu, Zhen,et al."The Contribution of Astragalus adsurgens Roots and Canopy to Water Erosion Control in the Water-Wind Crisscrossed Erosion Region of the Loess Plateau, China".LAND DEGRADATION & DEVELOPMENT 28.1(2017):265-273.