我国北方地区森林土壤中有机氯农药的含量特征和空间分布研究  

Content Characteristics and Spatial Distribution of Organochlorine Pesticides in Forest Soils in Northern China

作　　者：曹臻 李军[2] 邴海健[3] 王静[1] 郑芊 Cao Zhen;Li Jun;Bin Haijian;Wang Jing;Zheng Qian(College of Natural Resources and Environment,South China Agricultural University,Guangzhou 510642;State Key Laboratory of Organic Geochemistry,Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640;The Key Laboratory of Mountain Surface Processes and Ecological Regulation,Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu 610041,China)

机构地区：[1]华南农业大学资源环境学院,广东广州510642 [2]中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州510640 [3]中国科学院水利部成都山地灾害与环境研究所,四川成都610041

出　　处：《广东化工》2022年第19期137-141,共5页Guangdong Chemical Industry

摘　　要：对我国北方地区森林土壤中有机氯农药的含量特征和空间分布规律进行了研究。腐殖质层土壤污染物含量普遍高于表层土壤,其中有机氯农药在腐殖质层和表层土壤中总含量平均值分别为15 527 pg·g^(-1)和9720 pg·g^(-1),DDTs是森林土壤中主要的有机氯农药。北方地区森林土壤中有机氯农药的空间分布主要受当地农药施用和工业活动的影响,并且土壤总有机碳含量控制着有机氯农药的垂直分布。大部分森林土壤都有新的DDTs输入,并且DDTs主要来源于工业滴滴涕和三氯杀螨醇,而氯丹和硫丹主要来源于历史使用。The content characteristics and spatial distribution of organochlorine pesticides (OCPs) in forest soils in northern China were studied.The mean total content of organochlorine pesticides in organic horizons and mineral horizons were 15 527 pg·g^(-1)and 9720 pg·g^(-1),respectively.DDTs were the main organochlorine pesticides in forest soil.The spatial distribution of OCPs in forest soil in northern China was mainly affected by local pesticide application and industrial activities and the soil total organic carbon content controlled the vertical distribution of OCPs.Most forest soils have received fresh DDTs,and DDTs are mainly from technical DDT and dicofol,while chlordane and endosulfan are mainly from historical use.

关 键 词：有机氯农药 土壤 含量特征 空间分布 溯源 

分 类 号：X53[环境科学与工程—环境工程]