| 人类活动对内蒙古托克托县浅层地下水NO– 3-N污染的驱动作用 |
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| 关键词:confined groundwater NO– 3-N pollution source analysis human activities Togtoh county |
| 基金项目:中国地质调查局地质调查项目“呼包平原地下水污染调查评价”(编号: 1212011121163) |
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| Driving Action of Human Activities on NO– 3-N Pollution in Confined Groundwater of Togtoh County, Inner Mongolia |
| Groundwater NO– 3-N pollution has become an increasingly serious environmental and social problem in the world at present. Based on hydrogeological survey, the authors analyze the collected data by using the geostatistics method. The results show that the nitrate pollution in shallow groundwater in Togtoh county is not evenly distributed. The area of groundwater with NO– 3-N content higher than 20 mg/L covers about 1 015.71 km2, accounting for 72.1% of the whole area, and occurs extensively in the place south of Gucheng Town. The content of NO– 3-N in a small number of wells has been higher than 100 mg/L, up to 304.6 mg/L. Nitric acid groundwater has been found. Groundwater nitrate pollution source is analyzed by Water Quality Analysis and Chemical Balance Method. The results reveal that waste stacking, chemical fertilizer application, and sewage irrigation of the human activities have exerted an important driving role in the groundwater nitrate pollution of Togtoh county. |
| LI Zheng-hong,ZHANG Yi-long,HU Bo,WANG Li-juan,ZHU Yu-chen,LI Jian-feng.2018.Driving Action of Human Activities on NO– 3-N Pollution in Confined Groundwater of Togtoh County, Inner Mongolia[J].Acta Geoscientica Sinica,39(3):358-364. |
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