Variation in soil erodibility under five typical land uses in a small watershed on the Loess Plateau, China

doi:10.1016/j.catena.2018.11.003

	Variation in soil erodibility under five typical land uses in a small watershed on the Loess Plateau, China
	Wang, Hao 1,2; Zhang, Guang-hui 1,2; Li, Ning-ning 1,2; Zhang, Bao-jun 3; Yang, Han-yue 1,2
刊名	CATENA
	2019-03-01
卷号	174 页码:24-35
关键词	Soil erodibility Land use Near soil surface characteristics Vegetation restoration The loess plateau
ISSN号	0341-8162
DOI	10.1016/j.catena.2018.11.003
通讯作者	Zhang, Guang-hui(ghzhang@bnu.edu.cn)
英文摘要	The adjustment of land use can alter the near soil surface characteristics and thus likely affects soil erodibility. However, few studies have been carried out to assess the variations in soil erodibility under different land uses on the Loess Plateau after many slope farmlands have been converted to green lands in the past several decades. This study was conducted to quantify comprehensively the effects of five typical land uses (cropland, orchard, grassland, shrubland and woodland) on soil erodibility based on soil cohesion (Coh), saturated conductivity (K-s), the number of drop impact (NDI), the mean weight diameter of soil aggregates (MWD), soil penetration resistance (PR) and soil erodibility K factor from different aspects, as well as a comprehensive soil erodibility index (CSEI) produced by a weighted summation method. The results showed that Coh of grassland, K-s of woodland, and MWD and NDI of shrubland were the maximum, while PR of woodland and K of shrubland were the minimum among five tested land uses. Soil erodibility (reflected by CSEI) of shrubland was the minimum, while cropland had the maximum CSEI. Compared to cropland, soil erodibility decreased by 15.5%, 53.0%, 77.2% and 59.6% for orchard, grassland, shrubland and woodland, respectively. The variation in soil erodibility under different land uses was closely related to near soil surface characteristics. Soil erodibility increased with soil bulk density, and decreased with biological soil crust thickness, organic matter content, plant litter density, and root density. The results are helpful for optimizing spatial planning and improving eco-environment on the Loess Plateau.
资助项目	State Key Program of National Natural Science of China[41530858] ; National Key R&D Program of China[2017YFC0504702] ; Fund for Creative Research Groups of the National Natural Science Foundation of China[41621061]
WOS关键词	AGGREGATE STABILITY ; OVERLAND-FLOW ; SURFACE CHARACTERISTICS ; VEGETATION RESTORATION ; DETACHMENT CAPACITY ; TEMPORAL VARIATIONS ; ORGANIC-MATTER ; EROSION ; IMPACTS ; CRUSTS
WOS研究方向	Geology ; Agriculture ; Water Resources
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000456754600003
资助机构	State Key Program of National Natural Science of China ; National Key R&D Program of China ; Fund for Creative Research Groups of the National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/50611]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Guang-hui
作者单位	1.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resources Ecol, Beijing 100875, Peoples R China 2.Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Wang, Hao,Zhang, Guang-hui,Li, Ning-ning,et al. Variation in soil erodibility under five typical land uses in a small watershed on the Loess Plateau, China[J]. CATENA,2019,174:24-35.
APA	Wang, Hao,Zhang, Guang-hui,Li, Ning-ning,Zhang, Bao-jun,&Yang, Han-yue.(2019).Variation in soil erodibility under five typical land uses in a small watershed on the Loess Plateau, China.CATENA,174,24-35.
MLA	Wang, Hao,et al."Variation in soil erodibility under five typical land uses in a small watershed on the Loess Plateau, China".CATENA 174(2019):24-35.