农业环境科学学报2025，Vol.44Issue(10)：2590-2597,8.DOI:10.11654/jaes.2024-1066
新疆艾比湖流域农田土壤重金属环境容量评价
Environmental capacity assessment of heavy metals in farmland soils in the Ebinur Lake basin of Xinjiang
摘要
Abstract
To clarify the environmental capacity of heavy metals in farmland soils in the Ebinur Lake basin of Xinjiang,a total of 115 surface soil samples were collected from the study area,and the contents of heavy metals including Cd,Hg,As,Pb,Cu,Ni,and Zn were analyzed.The Environmental Capacity Comprehensive Index(PI)was used to analyze the characteristics and spatial distribution patterns of environmental capacity of heavy metals in farmland soils.The results showed that the average content of seven heavy metals,including Cd,Hg,As,Pb,Cu,Ni,and Zn,in the farmland soil in the Ebinur Lake basin was lower than the allowable limits in the Soil Environmental Quality-Risk Control Standards for Soil Contamination of Agricultural Land(GB 15618-2018),and the overall content of heavy metals was within a safe range.The average static and dynamic annual environmental capacities of various heavy metals in farmland soil in the study area can be ranked as:Zn＞Ni＞Pb＞Cu＞As＞Hg＞Cd.The average dynamic annual environmental capacity of various heavy metals was greater than the static annual environmental capacity.The single environmental capacity index(Pi)of seven heavy metals in farmland soils can be ranked as:Cu＞Hg＞Ni=Pb＞Cd＞Zn＞As.The average PI value of heavy metals in farmland soil was 0.82,at a medium capacity zone.The spatial distribution patterns of Pi of various heavy metals are different.The low PI areas distributed in the northern part of Wenquan County,and the southwestern and northern parts of Jinghe County.Overall,the soil As content is the main factor affecting the environmental capacity of heavy metals in farmland soils in the Ebinur Lake basin.关键词
农田/土壤/重金属/环境容量/艾比湖流域Key words
farmland/soil/heavy metal/environmental capacity/Ebinur Lake basin分类
环境科学引用本文复制引用
张紫萱,麦麦提吐尔逊·艾则孜,王丽灵,陈明丽..新疆艾比湖流域农田土壤重金属环境容量评价[J].农业环境科学学报,2025,44(10):2590-2597,8.基金项目
新疆维吾尔自治区自然科学基金项目(2023D01E08) （2023D01E08）
国家自然科学基金项目(U2003301)Natural Science Foundation of Xinjiang Uygur Autonomous Region(2023D01E08) （U2003301）
National Natural Science Foundation of China(U2003301) （U2003301）
