黑龙江省西部盐碱湿地土壤重金属分析及修复建议——以古大湖湿地和天湖湿地为例  

Soil heavy metal analysis and restoration suggestion of saline wetlands in Western Heilongjiang Province——a case study on Gudahu and Tianhu

作　　者：于少鹏[1] 丁俊男 史传奇 邱红 梁雄伟 YU Shao-peng(Harbin University,Heilongjiang Province Key Laboratory of Cold Region Wetland Ecology and Environment Research,Harbin Institution of Wetland Research,Harbin 150086,China)

机构地区：[1]哈尔滨学院黑龙江省寒区湿地生态与环境研究重点实验室哈尔滨湿地研究院

出　　处：《国土与自然资源研究》2019年第5期69-72,共4页Territory & Natural Resources Study

基　　金：黑龙江省普通高等学校青年学术骨干支持计划项目（1155G30）;哈尔滨市科技局优秀学科带头人项目（2017RC2017XK015004）

摘　　要：盐碱湿地是黑龙江省典型湿地类型之一,湿地土壤生态环境具有一定的脆弱性。通过对古大湖和天湖盐碱湿地主要土壤类型草甸土和沼泽土重金属含量进行分析,结果表明:草甸土呈中性,沼泽土为强碱性;古大湖湿地沼泽土及天湖湿地草甸土部分样品中Cd含量超出风险筛选值,且前者中Cu、Zn元素含量均有超出相应风险筛选值状况;两地所有土壤样品中的As、Ni、Pb、Cr和Hg元素含量均低于风险筛选值。对此,提出通过种植重金属富集植物、生物炭修复、并应实施严格管理,开展实时监测与治理等土壤重金属污染的建议。Saline wetland is one of the wetland types in Songnen Plain,and its soil ecological environment is very fragile.The heavy metal content in meadowsoil and swamp soil of the main soil types of Gudahu and Tianhu wetlands were analyzed in this study,the results showed that:The contents of Cd in some samples of Gudahu swamp soil and Tianhu meadow soil exceeded therisk screening values,and the contents of Cu and Zn in the latter exceeded their respective risk screening values.The meadow soil was neutral,but the swamp soil was strongly basic.The contents of heavy metals between meadow soil and swamp soil samples werequite different,and As、Ni、Pb、Cr、Hg contents of various heavy metals were lower than the risk screening values.Regarding this,plant enrichment and biochar method were the suggestions of control heavy metal contamination in soilsto restore heavy metal contaminationin this study,and strict management should beimplemented,real-time monitoring and governance should be carried out.

关 键 词：古大湖 天湖 土壤重金属 盐碱湿地 修复建议 

分 类 号：X53[环境科学与工程—环境工程]