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Chinese Academy of Sciences Institutional Repositories Grid
Decadal changes and ecological risk assessment of trace and heavy metal elements in soils of a desert oasis, Linze County, China

文献类型:期刊论文

作者Yang, Rong; Du, Zeyu; Kong, Junqia
刊名SOIL RESEARCH
出版日期2019
卷号57期号:2页码:178-186
关键词contamination factor farmland health risk heavy metals
ISSN号1838-675X
DOI10.1071/SR18245
通讯作者Yang, Rong(yangrong@lzb.ac.cn)
英文摘要This study assesses decadal changes (2005-2015) in the trace and heavy metal element contents of soils from four land use types at a desert oasis and also determines associated ecological and health risks. Concentrations of boron, molybdenum, manganese, zinc, copper, cadmium, lead, and mercury increased significantly over the decade. Farmland ecosystems had higher concentrations of soil trace and heavy metal elements than natural ecosystems, but intercropping with alfalfa tended to reduce concentrations. The environmental pollution assessment indicated that soils were moderately affected by human activities, particularly in farmland ecosystems. The potential degree of ecological risk from all elements was moderate, and in relation to land use this risk decreased in the following order: long-term cultivated farmland > newly reclaimed farmlands with monoculture > newly reclaimed farmlands with intercropping > natural desert grassland. Eight soil heavy metals posed potential non-carcinogenic risks, and dermal contact was the major exposure pathway; however, the carcinogenic risk level from soil was acceptable. These results suggest that agricultural activities increased the concentrations of certain soil trace and heavy metal elements and that adopting appropriate farmland management, such as intercropping with alfalfa, limited this increasing trend.
收录类别SCI
WOS关键词HEALTH-RISK ; SOURCE APPORTIONMENT ; SURFACE SOILS ; PHYTOREMEDIATION ; CONTAMINATION ; POLLUTION ; JIANGSU ; MIDDLE ; RIVER
WOS研究方向Agriculture
WOS类目Soil Science
语种英语
WOS记录号WOS:000460843100008
出版者CSIRO PUBLISHING
URI标识http://www.irgrid.ac.cn/handle/1471x/2555535
专题寒区旱区环境与工程研究所
通讯作者Yang, Rong
作者单位Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Linze Inland River Basin Res Stn, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式
GB/T 7714
Yang, Rong,Du, Zeyu,Kong, Junqia. Decadal changes and ecological risk assessment of trace and heavy metal elements in soils of a desert oasis, Linze County, China[J]. SOIL RESEARCH,2019,57(2):178-186.
APA Yang, Rong,Du, Zeyu,&Kong, Junqia.(2019).Decadal changes and ecological risk assessment of trace and heavy metal elements in soils of a desert oasis, Linze County, China.SOIL RESEARCH,57(2),178-186.
MLA Yang, Rong,et al."Decadal changes and ecological risk assessment of trace and heavy metal elements in soils of a desert oasis, Linze County, China".SOIL RESEARCH 57.2(2019):178-186.

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来源:寒区旱区环境与工程研究所

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