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当前位置: 首页 > 文章 > 珠江三角洲污灌区土壤中重金属含量特征 农业环境科学学报 2009,28 (11) 97-102
Position: Home > Articles > Heavy Metal Content Characteristics of Soil in Sewage Irrigation Area of Pearl River Delta Journal of Agro-Environment Science 2009,28 (11) 97-102

珠江三角洲污灌区土壤中重金属含量特征

作  者：
梁国玲;黄冠星;孙继朝;刘景涛;荆继红;张玉玺;陈玺;王金翠;向小平
单  位：
中国地质科学院水文地质环境地质研究所
关键词：
珠江三角洲;污灌区;土壤;重金属;全量
摘  要：
通过现场采样及室内测试方法,分析了珠江三角洲污灌区土壤中9种重金属Cd、Cu、Zn、Pb、Mn、Ni、As、Cr、Se的含量分布特征。结果表明,污灌区土壤9种重金属的全量平均含量均已超出广东省土壤背景值,其中Cd的污染程度最重,Se的污染程度最轻;污灌区土壤以Cd元素的有效系数最高,Ni元素的有效系数最低。Zn、Pb、Cu以及Cd元素随采样深度的增加其全量逐渐减少,Cr、Ni、As以及Se元素随采样深度的增加其全量呈上下波动状态或几乎不变,而Mn元素则是随采样深度的增加其全量先略有减少而后骤升。Cu、Cd、Zn等3种元素全量与有效态含量以及这3种元素全量间均呈显著或极显著的正相关关系。
译  名：
Heavy Metal Content Characteristics of Soil in Sewage Irrigation Area of Pearl River Delta
作  者：
LIANG Guo-ling,HUANG Guan-xing,SUN Ji-chao,LIU Jing-tao,JING Ji-hong,ZHANG Yu-xi,CHEN Xi,WANG Jin-cui,XIANG Xiao-ping(Institute of Hydrogeology and Environmental Geology,Chinese Academy of Geological Sciences,Shijiazhuang 050061,China)
关键词：
Pearl River Delta;sewage irrigation area;soil;heavy metals;total content
摘  要：
With the rapid industrialization development in recent years,there are many sewage irrigation phenomenons in the Pearl River Delta.It is important to understand the distribution of heavy metals in soil in sewage irrigation area for soil pollution prevention and control planning in Pearl River Delta.The total content and available content of heavy metals(Cd,Cu,Zn,Pb,Mn,Ni,As,Cr and Se)in soil from sewage irrigation area in the Pearl River Delta were analyzed with 32 soil samples.The average content of total content of the nine heavy met-als in soil from sewage irrigation area exceeded soil background value of Guangdong Province.Among of the nine heavy metals,Cd had the highest pollution degree,Se had the lowest pollution degree,Cd had the highest valid coefficient,and Ni had the lowest valid coefficient.The total contents of Cd,Cu,Zn and Pb decreased with the sampling depth increasing.The total contents of Ni,As,Cr and Se fluctuated or kept stable with the sampling depth increasing.The total content of Mn decreased firstly,and then rose remarkably with the sampling depth in-creasing.There was a remarkable or most remarkable positive correlation between total content and available content of Cd,Cu and Zn,and there was a remarkable positive correlation among of the total content of Cd,Cu and Zn,which indicated that the distribution of Cd,Cu,Zn and Pb in soil mainly affected by sewage irrigation.

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