Characteristics and Risk Assessment of Soil Heavy Metal Contents in Facility Agriculture of Guangxi
作者机构：Institute of Agricultural Resource and EnvironmentGuangxi Academy of Agricultural SciencesNanning 530007China Agricultural Research Institute of BeihaiBeihai 536005China
出 版 物：《Asian Agricultural Research》 (亚洲农业研究（英文）)
年 卷 期：2021年第13卷第3期
页 面：30-34页
学科分类：12[管理学] 083002[工学-环境工程] 1204[管理学-公共管理] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 082803[工学-农业生物环境与能源工程] 07[理学] 08[工学] 0828[工学-农业工程] 120405[管理学-土地资源管理] 0713[理学-生态学]
基 金：Supported by Key Research and Development Program of Guangxi(Gui Ke AB18221096) Fund of Guangxi Academy of Agricultural Sciences(2019ZX121 Gui Nong Ke 2020ZX03)
主 题：Soil of facility agriculture Heavy metal content Risk assessment Guangxi
摘 要：[Objectives]To study the characteristics of soil heavy metal contents in facility agriculture of Guangxi and analyze its risks.[Methods]The heavy metal content of 30 surface soil samples taken from facility agriculture in Guangxi was *** status of soil heavy metal pollution in facility agriculture of Guangxi was evaluated by the single factor index method,geo-accumulation index method and Hakanson potential ecological risk index method with reference to the soil background value in Guangxi.[Results]Compared with the soil background value in Guangxi,the over-limit rates of heavy metals cadmium,lead,arsenic,chromium,mercury,copper and zinc in soil samples were 56.67%,56.67%,16.67%,30.00%,50.00%,60.00%and 80.00%,*** with the screening values of the Soil Environmental Quality-Risk Control Standard for Soil Contamination of Agricultural Land(for trial implementation)(GB15618-2018),the overlimit rates of the heavy metals cadmium,arsenic,copper and zinc in the surface soil of agricultural facilities in Guangxi were 56.67%,10.00%,16.67%and 23.33%,*** for the average content of soil cadmium exceeding the screening value,the evaluation content of the other six soil heavy metals did not exceed the screening *** to the evaluation results of the single factor pollution index method,the surface soil arsenic and chromium of the agricultural facilities in Guangxi belonged to the clean level,lead,mercury,and copper belonged to mild pollution,and cadmium and zinc belonged to moderate *** to the evaluation results of the geo-accumulation index,the lead,arsenic,chromium and mercury in the surface soil of the agricultural facilities in Guangxi belonged to the pollution-free level,while the cadmium,copper and zinc belonged to the mild-moderate *** to the evaluation results of the potential ecological risk index method,the potential ecological risks of the heavy metals of lead,arsenic,chromium,copper an
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