干旱区生态环境知识资源中心(Arid): Response of soil particles around bedrock outcrops to sorting of rock surface flow derived outcrops in a rocky desertification area

Arid

DOI	10.1038/s41598-024-68710-2
	Response of soil particles around bedrock outcrops to sorting of rock surface flow derived outcrops in a rocky desertification area
	Zang, Jun; Peng, Xudong; Dai, Quanhou; Yang, Dan; Cen, Longpei; Liu, Tingting
通讯作者	Peng, XD
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2024
卷号	14 期号:1
英文摘要	Soils around bedrock outcrops, even if they are protected by vegetation to some extent after ecological restoration, are prone to being washed away by rock surface flow (RSF) derived from these outcrops in rocky desertification land. However, the extent of the scouring scale and sorting effect of RSF on the soils around outcrops remains unknown. To solve this problem, a series of soils around bedrock outcrops exposed in sloping farmland (SF, without RSF), abandoned land (AL, 1 year of RSF) and shrub-grassland (SG, 5 years of RSF) were examined by the laser diffraction method in a natural ecological restoration area of rocky desertification, where the duration of the RSF is also the time for ecological restoration. It was found that the RSF had a limited effect on the particle size distribution of the soils, only having a significant scouring effect on the soils at the rock-soil interface within a horizontal distance of 2 cm from the outcrops and an insignificant effect on the soils far away from the outcrops in terms of horizontal distance (10 cm and 20 cm). The particle size distributions of the soil around the outcrops were related to erosion caused by the RSF, but mainly benefited from ecological restoration. Compared with SF, the fine particle content in the soils around the outcrops significantly decreased in AL, but significantly increased in SG. Within a short period (1 year) after natural recovery, the RSF had a reduced effect on the fine particles of the soil around the outcrops; however, this did not occur after a long period (5 years). The results of this study further explain the influence of the RSF on soil erosion and leakage loss in karst areas.
英文关键词	Rock surface flow Soil around outcrops Rock-soil interface Particle sorting Rocky desertification
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:001280635000093
WOS关键词	NATURAL RAINFALL CONDITIONS ; LAND-USE TYPES ; SIZE DISTRIBUTION ; EROSION PROCESSES ; VEGETATION COVER ; FRACTAL FEATURES ; RUNOFF ; REGIONS ; SLOPES ; SCALES
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405591
推荐引用方式 GB/T 7714	Zang, Jun,Peng, Xudong,Dai, Quanhou,et al. Response of soil particles around bedrock outcrops to sorting of rock surface flow derived outcrops in a rocky desertification area[J],2024,14(1).
APA	Zang, Jun,Peng, Xudong,Dai, Quanhou,Yang, Dan,Cen, Longpei,&Liu, Tingting.(2024).Response of soil particles around bedrock outcrops to sorting of rock surface flow derived outcrops in a rocky desertification area.SCIENTIFIC REPORTS,14(1).
MLA	Zang, Jun,et al."Response of soil particles around bedrock outcrops to sorting of rock surface flow derived outcrops in a rocky desertification area".SCIENTIFIC REPORTS 14.1(2024).