干旱区生态环境知识资源中心(Arid): Variation in soil surface roughness under different land uses in a small watershed on the Loess Plateau, China

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DOI	10.1016/j.catena.2020.104465
	Variation in soil surface roughness under different land uses in a small watershed on the Loess Plateau, China
	Zhu, Ping-zong 1,2; Zhang, Guang-hui 1,2; Zhang, Bao-jun 3; Wang, Hong-xiao 1,2
通讯作者	Zhang, Guang-hui
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2020
卷号	188
英文摘要	Soil surface roughness (SSR) significantly influences hydrological and erosion processes under different conditions. Land use and its adjustment may greatly influence SSR via altering near soil surface characteristics and tillage operations, but few studies have been performed to quantify their effects on soil surface roughness. This study was conducted to investigate the variation in soil surface roughness under different land use types, and identify the main influencing factors contributing to these changes in a small watershed on the Loess Plateau, China. Eighteen sites were selected from five typical land use types (cropland, grassland, shrub land, orchard, and woodland) to measure random roughness (RR) by a photogrammetric method. The results showed that random roughness was greatly affected by land use types, plant species, and tillage operations. The mean RR under different land use types ranged from 9.47 to 10.06 mm. Woodland had the maximum RR, followed by cropland, shrub land, orchard, and grassland. For a given land use type, RR differed significantly between different plant species. The variation in random roughness was greatly influenced by the changes in near soil surface characteristics and tillage operations induced by land use adjustment. For the testing sites without tillage operations, RR increased linearly with soil median grain size, sand content, organic matter content, plant litter coverage, litter thickness, and litter density, while it decreased linearly with soil cohesion, silt content, and clay content. For the testing sites with tillage operations, RR was dominated by tillage operations. These results are helpful to understand the potential effects of vegetation restoration on hydrological and erosion processes on hillslopes in arid and semi-arid regions.
英文关键词	Random roughness Photogrammetry Land use change Vegetation restoration Chinese Loess Plateau
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000518488500038
WOS关键词	DETACHMENT CAPACITY ; DEPRESSION-STORAGE ; EROSION PROCESSES ; OVERLAND-FLOW ; TILLAGE ; MICRORELIEF ; VEGETATION ; SLOPES ; RUNOFF ; INFILTRATION
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
来源机构	北京师范大学 ; 西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314240
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	Zhu, Ping-zong,Zhang, Guang-hui,Zhang, Bao-jun,et al. Variation in soil surface roughness under different land uses in a small watershed on the Loess Plateau, China[J]. 北京师范大学, 西北农林科技大学,2020,188.
APA	Zhu, Ping-zong,Zhang, Guang-hui,Zhang, Bao-jun,&Wang, Hong-xiao.(2020).Variation in soil surface roughness under different land uses in a small watershed on the Loess Plateau, China.CATENA,188.
MLA	Zhu, Ping-zong,et al."Variation in soil surface roughness under different land uses in a small watershed on the Loess Plateau, China".CATENA 188(2020).