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Spatial distribution and ecological risk assessment of heavy metals in karst soils from the Yinjiang County, Southwest China

文献类型：期刊论文

作者Han, Ruiyin1,2; Xu, Zhifang1,2,3
刊名PEERJ
出版日期2022-02-01
卷号10页码:23
关键词Contamination assessment Distribution characteristics Land-use types Karst area Soil heavy metals
ISSN号2167-8359
DOI10.7717/peerj.12716
英文摘要Background. Soil heavy metals (HMs) under different land-use types have diverse effects, which may trigger the ecological risk. To explore the potential sources of HMs in karst soils, the spatial distribution and geochemical behavior of HMs based on different land-use types are employed in this study. Methods. Soil samples (n = 47) were collected in three suites of karst soil profiles from the secondary forest, abandoned cropland and shrubland in Yinjiang, Southwest China. The concentrations of Ni, Mn, Cr, Pb, Cd and Mo were determined to give a comprehensive understanding of the possible sources of these HMs and evaluate the potential ecological risk in Yinjiang County. Results. The mean concentrations of HMs in all profiles followed the same order: Mn Cr > Ni > Pb > Mo > Cd. Meanwhile, the concentrations of most HMs roughly increased with the depth. Additionally, the concentrations of HMs were mostly correlated with soil pH and SOC, rather than with clay and silt proportions. By contrast, with the enrichment factors (EF), geo-accumulation (Igeo) and potential ecological risk index (PERI) of HMs in soil under different land-use types, the results indicated that these HMs exhibited non-pollution (Igeo < 0) and no ecological risk (PERI < 30) to human health in soils of Yinjiang County. Conclusions. The distribution of HMs is dominated by weathering in the karst area, and the effects of agricultural inputs on the enrichment of soil HMs in Yinjiang County are limited. This further state that the arrangement of the local agricultural structure is reasonable.
WOS关键词FOREST SOILS ; ORGANIC-MATTER ; SOLUTE TRANSPORT ; TRACE-ELEMENTS ; PB ; CONTAMINATION ; CU ; ZN ; MOLYBDENUM ; POLLUTION
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB26020502] ; National Natural Science Foundation of China[41772380] ; National Natural Science Foundation of China[41673020]
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000759257800002
出版者PEERJ INC
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/104971]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Xu, Zhifang
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Han, Ruiyin,Xu, Zhifang. Spatial distribution and ecological risk assessment of heavy metals in karst soils from the Yinjiang County, Southwest China[J]. PEERJ,2022,10:23.
APA Han, Ruiyin,&Xu, Zhifang.(2022).Spatial distribution and ecological risk assessment of heavy metals in karst soils from the Yinjiang County, Southwest China.PEERJ,10,23.
MLA Han, Ruiyin,et al."Spatial distribution and ecological risk assessment of heavy metals in karst soils from the Yinjiang County, Southwest China".PEERJ 10(2022):23.

入库方式： OAI收割

来源：地质与地球物理研究所

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