干旱区生态环境知识资源中心(Arid): Effects of mosaic-pattern shrub patches on runoff and sediment yield in a wind-water erosion crisscross region

Arid

DOI	10.1016/j.catena.2018.11.022
	Effects of mosaic-pattern shrub patches on runoff and sediment yield in a wind-water erosion crisscross region
	Lu, Rong 1,2; Liu, Yi-Fan 1; Jia, Chao 1; Huang, Ze 1,2; Liu, Yu 1,2; He, Honghua 1; Liu, Bing-Ru 2; Wang, Zhan-Jun 3; Zheng, Jiyong 1; Wu, Gao-Lin 1,2
通讯作者	Zheng, Jiyong ; Wu, Gao-Lin
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2019
卷号	174 页码:199-205
英文摘要	Shrub patch fragmentation makes a substantial contribution to soil erosion in sandy regions. This study aimed to analyze the effects of mosaic-pattern shrub patch size on runoff and sedimentation in a wind-water erosion crisscross region. The influence of shrub patch size on runoff and sedimentation, and on several soil physical and vegetation factors was evaluated in a sandy Chinese landscape. Based upon the canopy diameter of Artemisia ordosica, a xerophytic shrub, three different patch sizes were set as the treatments, such as small (empty set < 60 cm), medium (60 < empty set < 160 cm) and large (empty set > 160 cm) shrub patches. Bare land served as control conditions. Three runoff plots were established for each shrub size, and runoff (Q) and sediment (SY) yields were monitored under natural rainfall conditions. The results indicated that rainfall distribution was uneven in the study area. Low-intensity (0-5 mm/h) and short-duration (0-5 h) rainfall events accounted for 82.6% and 71.7% of all events, respectively, during the 6-month test period, from May to October 2016. Linear regression indicated that Q and SY increased with increasing rainfall depth at the slope scale. The impact of rainfall erosion on bare land was the greatest. Compared with control plots, Q and SY reduction owing to the small, medium, and large shrub patches was 19.7% and 49.3%, 31.4% and 62.4%, and 35.9% and 94.9%, respectively. These results confirmed the different effects of shrub patches of different sizes on soil quality, runoff and sediment reduction. Besides, this study suggested that shrub patches could modify soil microhabitats on sandy soils, reducing the soil erosion rates and as well as favoring vegetation regeneration.
英文关键词	Soil erosion Runoff and sediment yield Patch size Vegetation patches Sandy soil
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000456754600018
WOS关键词	LOESS PLATEAU ; SOIL-EROSION ; HILLY AREA ; DESERT ; VARIABILITY ; DIVERSITY
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
来源机构	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/2XILL650/214824
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Fanning Loess P, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China; 2.Ningxia Univ, Breeding Base State Key Lab Land Degradat & Ecol, Key Lab Restorat & Reconstruct Degraded Ecosyst N, Minist Educ, Ningxia 750021, Peoples R China; 3.Ningxia Acad Agr & Forestry Sci, Inst Desertificat Control, Ningxia 750002, Peoples R China
推荐引用方式 GB/T 7714	Lu, Rong,Liu, Yi-Fan,Jia, Chao,et al. Effects of mosaic-pattern shrub patches on runoff and sediment yield in a wind-water erosion crisscross region[J]. 西北农林科技大学,2019,174:199-205.
APA	Lu, Rong.,Liu, Yi-Fan.,Jia, Chao.,Huang, Ze.,Liu, Yu.,...&Wu, Gao-Lin.(2019).Effects of mosaic-pattern shrub patches on runoff and sediment yield in a wind-water erosion crisscross region.CATENA,174,199-205.
MLA	Lu, Rong,et al."Effects of mosaic-pattern shrub patches on runoff and sediment yield in a wind-water erosion crisscross region".CATENA 174(2019):199-205.