摘要
以珠江三角洲地区的珠海市斗门区为研究区,通过贝叶斯决策树模型、土壤污染风险管控标准识别出镉污染成因,提出对应的修复与管控措施,形成研究区农用地安全利用分区。研究结果表明:研究区农用地安全利用分区共划分为5个土壤修复区(延长淹水、低富集作物、超富集植物+低富集作物、碱性钝化剂+有机物料、能源作物或超富集植物,占比为22.11%),1个转用限制区(严格限制种植可食用作物,占比为58.07%)和1个安全区(占比为19.82%)。土壤安全利用分区可以为研究区土壤修复措施的制定、土地利用规划提供参考,为降低居民Cd摄入健康风险提供科学依据。
Taking Doumen District of Zhuhai City in the Pearl River Delta as the study area,the causes of cadmium pollution were identified through Bayesian decision tree model and soil pollution risk control standards,and corresponding remediation and control measures were proposed to form safe utilization zoning of agricultural land in the study area.The research results indicated that the farmland safe utilization zoning in the study area is divided into 5 soil remediation zones(extended flooding,low-enriched crops,hyper-enriched plants+low-enriched crops,alkaline passivators+organic materials,energy crops or hyper-enriched plants,accounting for 22.11%),1 conversion restriction zone(strictly limited planting of edible crops,accounting for 58.07%),and 1 safety zone(19.82%).Soil safety utilization zoning can provide reference for the formulation of soil remediation measures and land use planning,and provide scientific basis for reducing the health risks of residents Cd intake.
作者
张冰
仝桂杰
郭卫平
ZHANG Bing;TONG Guijie;GUO Weiping(713th Research Institute of China State Shipbuilding Corporation Limited,Zhengzhou 450015,China;不详)
出处
《武汉理工大学学报(信息与管理工程版)》
2024年第6期848-852,共5页
Journal of Wuhan University of Technology:Information & Management Engineering
关键词
镉环境污染
安全利用分区
贝叶斯决策树
农用地
土壤修复
cadmium environmental pollution
safety utilization zoning
Bayesian decision tree
farmland
soil remediation
