| 浙北嘉善县1990-2008年土壤重金属元素及酸碱度变化和趋势预测 |
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| 引用本文： | 王加恩,康占军,潘卫丰,任荣富,胡艳华,来红.浙北嘉善县1990-2008年土壤重金属元素及酸碱度变化和趋势预测[J].地质科技情报,2010,29(1). |
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| 作者姓名： | 王加恩 康占军 潘卫丰 任荣富 胡艳华 来红 |
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| 作者单位： | 1. 浙江省地质调查院,杭州,311203
2. 浙江省嘉善县国土资源局,浙江,嘉善,314100 |
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| 基金项目： | 中国地质调查局地质大调查项目(20021400013) |
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| 摘 要： | 根据嘉善平原区表层土壤3次不同时间的调查结果,对其表层土壤的重金属元素含量及酸碱度变化进行了分析。结果表明,重金属元素As、Cd、Cu、Hg在1990-2002年表现为累积,相对变化率最大的为Cu。2002—2008年Cd、Hg、Cu、Ni、Pb、Zn表现为累积,As、Cr略有下降,累积速率最大的为Cd。1990~2008年土壤环境质量下降显著,Ⅰ类土壤区从有到无,Ⅲ类土壤区增加了91.31 km2。土壤酸化明显,全县弱酸性土地从1990年到2008年增加了97.13 km2。预测到2013年Ⅱ类土壤区面积为116.58 km2,Ⅲ类土壤区面积为390.46 km2,占全县面积的77%。强酸性土壤区面积为29.62 km2,占5.84%,酸性土壤区面积为392.46 km2,占77.4%。
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| 关 键 词： | 重金属 变化率 土壤环境质量 预测 |
Content Change and Forecast of Heavy Metal and pH Value in Soil for Jianshan Area, Northern Zhejiang Province from 1990 to 2008 |
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| WANG Jia-en,KANG Zhan-jun,PAN Wei-feng,REN Rong-fu,HU Yan-hua,LAI Hong.Content Change and Forecast of Heavy Metal and pH Value in Soil for Jianshan Area, Northern Zhejiang Province from 1990 to 2008[J].Geological Science and Technology Information,2010,29(1). |
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| Authors: | WANG Jia-en KANG Zhan-jun PAN Wei-feng REN Rong-fu HU Yan-hua LAI Hong |
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| Institution: | 1.Zhejiang Institute of Geological Survey;Hangzhou 311203;China;2.Jiashan Bureau of Land Resources;Jiashan Zhejiang 314100;China |
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| Abstract: | The heavy metal elements and pH values of the topsoil in Jiashan County northern Zhejiang Province have been investigated in three different periods.The result shows that the As,Cd,Cu and Hg were acumulated between 1990 and 2002,dominated by Cd.From 1990 to 2008,the soil quality markedly declined.For example,I-type soil increased from zero to acumulation,and III-type soil increased by 91.31 km2.Soil acidification is significant.While the soil area with weak acidification increased by 97.13 km2 between 1990 ... |
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| Keywords: | heavy metal variation rate the soil quality forecast |
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