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Spatial distribution patterns of rock fragments and their underlying mechanism of migration on steep hillslopes in a karst region of Yunnan Province, China
Liu, Juan; Shen, You-xin; Zhu, Xi-ai; Zhao, Gao-juan; Zhao, Zhi-meng; Li, Zhen-jiang
2019
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
Volume26Issue:24Pages:24840-24849
Abstract

In mountainous areas, rock fragments (RFs) are a common feature on the soil surface and in topsoil. Few studies, however, have investigated the spatial distribution of RFs and the relevant mechanisms underpinning their distribution on steep hillslopes, especially in karst regions. We have collected and measured the RF cover, size, and content at the soil surface and within the topsoil of secondary forest, man-made forest, and non-forest land hillslopes in a karst region in Yunnan Province, southwest China. The results revealed no significant relationships between slope position and mean total RF coverage, median diameter (D-50), and mean total volumetric RF in topsoil within the three karst hillslopes covered by different types of vegetation. A limited effect of vegetation on the spatial distribution of RFs on the hillslopes was identified. However, the variation in RFs in the topsoil between the top and bottom slopes was greater than that at the surface between the top and bottom slopes, implying that underground leakage was greater than surface runoff.

KeywordKarst Rock fragments Spatial distribution Soil erosion Forest
Subject AreaEnvironmental Sciences & Ecology
DOI10.1007/s11356-019-05658-1
Indexed BySCI
Language英语
WOS IDWOS:000480557400045
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/11482
Collection恢复生态学组
Affiliation1.[Liu, Juan
2.Shen, You-xin
3.Zhu, Xi-ai
4.Zhao, Gao-juan
5.Zhao, Zhi-meng
6.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, CAS Key Lab Trop Forest Ecol, Mengla 666301, Yunnan, Peoples R China
7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Juan,Shen, You-xin,Zhu, Xi-ai,et al. Spatial distribution patterns of rock fragments and their underlying mechanism of migration on steep hillslopes in a karst region of Yunnan Province, China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2019,26(24):24840-24849.
APA Liu, Juan,Shen, You-xin,Zhu, Xi-ai,Zhao, Gao-juan,Zhao, Zhi-meng,&Li, Zhen-jiang.(2019).Spatial distribution patterns of rock fragments and their underlying mechanism of migration on steep hillslopes in a karst region of Yunnan Province, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,26(24),24840-24849.
MLA Liu, Juan,et al."Spatial distribution patterns of rock fragments and their underlying mechanism of migration on steep hillslopes in a karst region of Yunnan Province, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 26.24(2019):24840-24849.
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