汾河中上游农田土壤重金属含量特征及来源解析
|
摘要
为了解山西汾河中上游农田土壤重金属污染状况及其污染来源,对其重金属含量进行了研究,并通过相关分析法、聚类分析法、主成分分析法对汞、镉污染进行源解析。结果表明:所有点位汞、砷、铜、锌、镍、铅、镉、铬平均质量分数分别为0.14 mg/kg、9.13 mg/kg、14.50 mg/kg、53.28 mg/kg、20.56 mg/kg、14.56 mg/kg、0.14 mg/kg、37.83 mg/kg,汞、镉2种重金属污染最严重,污染程度排序为:汞>镉>砷>铅>锌>铬>镍>铜;S29点位均为最高值,最低值均在S1点位;汞、镉污染主要为流域煤企和化工排废及引黄汇口上游水质影响。
To explore the contamination status of heavy metals and pollution sources of farmland soils in the upper and middle reaches of Fenhe River,heavy metals contents of farmland soils in the upper and middle reaches of Fenhe River are studied. Correlation analysis,cluster analysis and principal component analysis are used to analysis the pollution sources of mercury and cadmium. The results show that:The average contents of heavy metals Hg,As,Cu,Zn,Ni,Pb,Cd,and Cr of all points are 0.14、9.13、14.50、53.28、20.56、14.56、0.14、37.83 mg·kg~(-1). Hg and Cd are worst heavy metal pollutants. The extent of heavy metals are ranked as follow:Hg>As>Cu>Zn>Ni>Pb>Cd>Cr. The highest value appeared in the S29 point,and the lowest value appeared in the S1 point. Mercury and cadmium pollution are mainly affected by the coal enterprises,chemical companies pollution and the upstream water quality.
To explore the contamination status of heavy metals and pollution sources of farmland soils in the upper and middle reaches of Fenhe River,heavy metals contents of farmland soils in the upper and middle reaches of Fenhe River are studied. Correlation analysis,cluster analysis and principal component analysis are used to analysis the pollution sources of mercury and cadmium. The results show that:The average contents of heavy metals Hg,As,Cu,Zn,Ni,Pb,Cd,and Cr of all points are 0.14、9.13、14.50、53.28、20.56、14.56、0.14、37.83 mg·kg~(-1). Hg and Cd are worst heavy metal pollutants. The extent of heavy metals are ranked as follow:Hg>As>Cu>Zn>Ni>Pb>Cd>Cr. The highest value appeared in the S29 point,and the lowest value appeared in the S1 point. Mercury and cadmium pollution are mainly affected by the coal enterprises,chemical companies pollution and the upstream water quality.
引文
[1]范庆安,庞春花,张峰.汾河流域湿地退化特征及恢复对策[J].水土保持通报,2008,28(5):192-194.
[2]薛占金,秦作栋,孟宪文.2010年汾河流域土地退化经济损失评估[J].水土保持通报,2014,34(3):295-299.
[3]郭爱珍,陈斌,程曼,等.我国蔬菜重金属污染现状及防控措施[J].山西农业科学,2016,44(4):560-564.
[4]张菊,陈诗越,邓焕广,等.山东省部分水岸带土壤重金属含量及污染评价[J].生态学报,2012,32(10):3144-3153.
[5]张惠芬,张丽,陈长安.重金属污染土壤的几种修复技术及发展趋势[J].科技资讯,2008(16):117-118.
[6]马旭红,吴云海,杨凤.土壤重金属污染的探讨[J].环境科学与管理,2006,31(5):52-54.
[7]王莉,康树静,王浩.土壤重金属污染[J].科技信息,2008(19):52-53.
[8]ROACH A C. Assessment of metals in sediments from Lake Macquarie,New South Wales,Australia,using normalization models and sediment quality guidelines[J].Marine Environmental Research,2005(59):453-472.
[9]中国环境监测总站.中国土壤元素背景值[M].北京:中国环境科学出版社,1990.
[10]李冬林,金雅琴,张纪林,等.秦淮河河岸带典型区域土壤重金属污染分析与评价[J].浙江林学院学报,2008,25(2):228-234.
[11]高鹏,刘勇,苏超.太原城区周边土壤重金属分布特征及生态风险评价[J].农业环境科学学报,2015,34(5):866-873.
[12]高吉喜,段飞舟,香宝.主成分分析在农田土壤环境评价中的应用[J].地理研究,2006,25(5):836-842.
[13]陆书玉.环境影响评价[M].北京:高等教育出版社,2002:163-164.
[2]薛占金,秦作栋,孟宪文.2010年汾河流域土地退化经济损失评估[J].水土保持通报,2014,34(3):295-299.
[3]郭爱珍,陈斌,程曼,等.我国蔬菜重金属污染现状及防控措施[J].山西农业科学,2016,44(4):560-564.
[4]张菊,陈诗越,邓焕广,等.山东省部分水岸带土壤重金属含量及污染评价[J].生态学报,2012,32(10):3144-3153.
[5]张惠芬,张丽,陈长安.重金属污染土壤的几种修复技术及发展趋势[J].科技资讯,2008(16):117-118.
[6]马旭红,吴云海,杨凤.土壤重金属污染的探讨[J].环境科学与管理,2006,31(5):52-54.
[7]王莉,康树静,王浩.土壤重金属污染[J].科技信息,2008(19):52-53.
[8]ROACH A C. Assessment of metals in sediments from Lake Macquarie,New South Wales,Australia,using normalization models and sediment quality guidelines[J].Marine Environmental Research,2005(59):453-472.
[9]中国环境监测总站.中国土壤元素背景值[M].北京:中国环境科学出版社,1990.
[10]李冬林,金雅琴,张纪林,等.秦淮河河岸带典型区域土壤重金属污染分析与评价[J].浙江林学院学报,2008,25(2):228-234.
[11]高鹏,刘勇,苏超.太原城区周边土壤重金属分布特征及生态风险评价[J].农业环境科学学报,2015,34(5):866-873.
[12]高吉喜,段飞舟,香宝.主成分分析在农田土壤环境评价中的应用[J].地理研究,2006,25(5):836-842.
[13]陆书玉.环境影响评价[M].北京:高等教育出版社,2002:163-164.