| 辽宁省粮食蔬菜主产区地下水硝酸盐含量调查分析 |
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| 引用本文： | 汪仁,XIE Zhan-jun,华利民,Gong-Liang,包红静,LIU Yan,牛世伟.辽宁省粮食蔬菜主产区地下水硝酸盐含量调查分析[J].土壤通报,2008,39(4). |
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| 作者姓名： | 汪仁 XIE Zhan-jun 华利民 Gong-Liang 包红静 LIU Yan 牛世伟 |
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| 基金项目： | 农业部农业生态环境科技推广--华北地区地下水硝酸盐污染调查与监测项目资助 |
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| 摘 要： | 2005～2007年连续3年5次采集辽宁省粮食、蔬菜主产区地下水样品1000余个,利用TU-1810DASPC紫外可见光光度计测定硝酸盐含量。结果表明:粮食、蔬菜主产区地下水硝酸盐含量平均值为17.37mgL-1,硝酸盐含量小于20mgL-1的样品占70.53%,大于20mgL-1的样品占29.47%。保护地蔬菜产区农户饮用水硝酸盐含量平均值为21.19mgL-1,个别的蔬菜种植户地下水硝酸盐含量达到396.67mgL-1,超出国家安全饮用水标准15倍以上。水稻产区地下水硝酸盐含量平均值为19.14mgL-1,玉米产区地下水硝酸盐含量为14.21mgL-1。部分监测区域地下水硝酸盐含量超出安全饮用水标准13.0%～28.1%。不同县区地下水硝酸盐含量超标率排序为新民市53.75%>开原市42.35%>辽中县41.75%>黑山县33.46%>北镇市31.51%>铁岭县28.87%>昌图县28.33%>新城子区12.50%>于洪区10.00%>苏家屯区9.00%。
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| 关 键 词： | 粮食 蔬菜 地下水 硝酸盐含量 |
Investigation of Nitrate Content in Underground Water in Main Production Regions of Foodstuff and Vegetable of Liaoning Province |
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| WANG Ren,XIE Zhan-jun,HUA Li-min,Gong-Liang,BAO Hong-jing,LIU Yan,NIU Shi-wei.Investigation of Nitrate Content in Underground Water in Main Production Regions of Foodstuff and Vegetable of Liaoning Province[J].Chinese Journal of Soil Science,2008,39(4). |
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| Authors: | WANG Ren XIE Zhan-jun HUA Li-min Gong-Liang BAO Hong-jing LIU Yan NIU Shi-wei |
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| Abstract: | More than 1000 underground water samples in main production regions of foodstuff and vegetable of Liaoning Province were collected 5 times from 2005 to 2007. Nitrate content was analyzed with ultraviolet and visible spectrophotometer,TU-1810DASPC. The results showed that the average nitrate content in underground water in main production regions of foodstuff and vegetable was 17.37mg L-1,the samples that nitrate content was less than 20mg L-1 was 70.53%, and that was more than 20mg L-1 occupied 29.47%. The average nitrate content in drinking water in main vegetable regions was 21.19mg L-1, nitrate content reached 396.67mg L-1 in underground water of some vegetable farmers,that was higher 15times than drinking water quality criterion.The average nitrate content in underground water in main rice planted regions was 19.14mg L-1 and in main maize planted regions was 14.21mg L-1. Nitrate content in underground water in some monitor regions was 13.0-28.1% higher than drinking water quality criterion ,The order of beyond standard ratio of nitrate content in underground water of different counties and districts was Xinmin >Kaiyuan>Liaozhong>Heishan>Beizhen city>Teiling>Changtu>Xinchengzi>Yuhong>Sujiatun. |
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| Keywords: | Foodstuff Vegetable Underground Water Nitrate Content |
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