文献类型：期刊文献

中文题名：河南省柿主产区土壤重金属污染及其生态风险分析

英文题名：Soil heavy metal pollution and its ecological risk analysis in the main Diospyros kaki producing areas of Henan Province

作者：金钰[1] 叶令帅[2] 李华威[2] 黄琳[2] 李臻渊[3] 樊雄飞[2] 张春玲[4] 傅建敏[2] 刁松锋[2]

第一作者：金钰

机构：[1]河南省林业科学研究院国家林业和草原局林产品质量检验检测中心,河南郑州450008;[2]中国林业科学研究院经济林研究所经济林种质创新与利用国家林业和草原局重点实验室,河南郑州450003;[3]河南黄河湿地国家级自然保护区三门峡管理处,河南三门峡411202;[4]新密市林业局科技推广站,河南新密452370

年份：2022

卷号：39

期号：6

起止页码：1303-1312

中文期刊名：浙江农林大学学报

外文期刊名：Journal of Zhejiang A&F University

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：国家重点研发计划项目(2020YFD1000700);河南省国家重点科研项目奖励资金项目(2022);国家林业和草原局林产品质量安全监测项目(2022)。

语种：中文

中文关键词：柿;河南省;土壤重金属;污染;生态风险

外文关键词：Diospyros kaki;Henan Province;heavy metals in soil;pollution;ecological risk

分类号：S665.2

摘要：【目的】探讨河南省柿Diospyros kaki主产区土壤重金属污染及其生态风险,为评价土壤环境安全状况以及防治重金属污染提供科学依据。【方法】从安阳、济源和三门峡等3个柿主产区的90个柿园采集了450个土壤样品,测定砷、汞、铅、镉、铬和铜等6种重金属元素的质量分数。采用污染负荷指数(I_(PL))、综合潜在生态风险指数(I_(R))和生态风险预警指数(I_(ER))对柿园土壤重金属污染及生态风险进行评价。【结果】在河南省柿主产区,土壤砷、汞、铅和铜质量分数的平均值分别为背景值的1.26、2.01、1.86和1.64倍。柿园土壤汞表现为中度污染,砷、铅和铜轻度污染,镉和铬无污染。在河南省柿主产区,土壤砷、汞、铅和铜受到人类活动影响较大,其中砷主要是受农业生产活动的影响,汞、铅和铜则受工业活动影响较大。在河南省柿主产区,I_(PL)、I_(R)和I_(ER)平均值分别为1.08、136.95和2.33,呈现轻度污染、轻微风险和轻度预警等级。济源产区污染最为严重,生态风险等级和预警等级均为最高,I_(PL)、I_(R)和I_(ER)分别达1.32、154.10和3.79;13.33%的果园处于中度或重度污染状态,33.33%的果园处于中等或较强潜在生态风险等级,66.67%和26.67%的果园分别呈现中度和重度预警。在河南省柿主产区,6种重金属中汞的单因子污染指数(CF)、潜在生态风险指数(I_(R))和污染生态风险预警等级(I_(ER))均最高,分别为2.01、80.31和1.01。【结论】汞是河南省柿主产区土壤重金属生态风险等级和预警级别最高的重金属元素。济源产区柿园污染水平、潜在生态风险程度与生态风险预警等级在3个产区中最高,均达到中等水平。图2表8参30。
[Objective]The objective is to investigate the soil heavy metal pollution and its ecological risk in Diospyros kaki main producing areas in Henan Province,so as to provide scientific basis for evaluation of soil environmental safety and heavy metal prevention in the main producing areas.[Method]450 soil samples were collected from 90 D.kaki plantations in 3 major producing areas,including Anyang,Jiyuan and Sanmenxia,and the contents of 6 heavy metal elements such as As,Hg,Pb,Cd,Cr,and Cu were determined.Pollution load index(I_(PL)),potential ecological risk index(I_(R))and ecological risk warning index(I_(ER))were used to evaluate the heavy metal pollution and ecological risk in D.kaki orchard.[Result]The average contents of As,Hg,Pb and Cu in soil were 1.26,2.01,1.86,and 1.64 times of the background values,respectively.The soil in D.kaki orchard was moderately polluted by Hg,slightly polluted by As,Pb and Cu.Cd and Cr were pollution-free.Soil As,Hg,Pb and Cu in the main producing areas were greatly affected by human activities,among which As was mainly affected by agricultural activities,while Hg,Pb and Cu were greatly affected by industrial activities.The average values of I_(PL),I_(R) and I_(ER) were 1.08,136.95 and 2.33,respectively,showing mild pollution,slight risk and mild warning grade.Jiyuan producing area had the most serious pollution,and the highest I_(R) and I_(ER) level,with I_(PL),I_(R) and I_(ER) reaching 1.32,154.10 and 3.79,respectively.13.33%of the orchards were moderately or severely polluted,and 33.33%were in moderate or strong I_(R) level.66.67%and 26.67%of orchards showed moderate and severe warnings respectively.Among the 6 heavy metals,Hg had the highest single factor pollution index(CF),I_(R) and I_(ER),which were 2.01,80.31 and 1.01,respectively.[Conclusion]Hg is the heavy metal element with the highest I_(R) and I_(ER) level in the soil of the main D.kaki producing areas.Jiyuan has the highest I_(PL),I_(R) and I_(ER) among the 3 producing areas,all reaching the medium level.[Ch,2 fig.8 tab.30 ref.]