| 浅层地下水氮污染的影响因素分析--以松嫩盆地松花江北部高平原为例 |
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| 引用本文： | 董维红,林学钰.浅层地下水氮污染的影响因素分析--以松嫩盆地松花江北部高平原为例[J].吉林大学学报(地球科学版),2004,34(2):231-235. |
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| 作者姓名： | 董维红 林学钰 |
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| 作者单位： | 吉林大学,环境与资源学院,吉林,长春,130026;吉林大学,水资源与环境研究所,吉林,长春,130026 |
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| 摘 要： | 研究区浅层地下水中的NO-3质量浓度在时间分布上与降雨(包括降雨期、降雨量)和施肥(包括施肥期、施肥量)存在较大的相关性.同一年内9月份(丰水期末)浅层地下水中NO-3质量浓度大于5月份(枯水期末)的质量浓度.年际间总体变化趋势随年降雨量的变化而变化.在空间分布上主要受地下水水位埋深、水力坡度、含水层岩性及厚度的影响,水位埋深越大、含水层渗透性越强、水力坡度越小,浅层地下水中NO-3质量浓度增高的趋势越明显.为验证上述定性分析所得结论的可靠性,采用因子分析法对上述时空变量进行了定量评价.结果表明,研究区浅层地下水中的氮污染主要是上述时空变量共同影响的结果,其中降雨和水位埋深对其影响程度相对较大.
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| 关 键 词： | 松嫩盆地 浅层地下水 氮污染 影响因素 因子分析 浅层地下水 氮污染 影响因素分析 松嫩盆地 松花江 北部 平原 Basin Songhua River plain high case nitrogen pollution influence factors 程度 结果 定量评价 变量 时空 因子分析法 |
| 文章编号： | 1671-5888(2004)02-0231-05 |
| 修稿时间： | 2003年3月4日 |
Analysis on the influence factors of the nitrogen pollution in shallow groundwater--A case in the north high plain of Songhua River in Songnen Basin |
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| A case in the north high plain of Songhua River in Songnen BasinDONG Wei-hong.Analysis on the influence factors of the nitrogen pollution in shallow groundwater--A case in the north high plain of Songhua River in Songnen Basin[J].Journal of Jilin Unviersity:Earth Science Edition,2004,34(2):231-235. |
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| Authors: | A case in the north high plain of Songhua River in Songnen BasinDONG Wei-hong |
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| Institution: | A case in the north high plain of Songhua River in Songnen BasinDONG Wei-hong~ |
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| Abstract: | The nitrogen concentration in the shallow groundwater in the north high plain of Songhua River in Songnen Basin has an intimate relationship with precipitation and fertilization according to the temporal distribution. In the same year, the nitrogen concentration in the shallow groundwater in September (the end of bumper rain term) is higher than that in May (the end of withered rain term), and the nitrogen concentration changes with the variation of precipitation during many years. As for the spatial distribution, the nitrogen concentration depends mainly on the groundwater level depth, hydraulic gradient, lithology and thickness of the aquifer. In order to check whether the conclusions of the qualitative analysis discussed above are correct or not, factor analysis method was applied to evaluate quantitatively the temporal and spatial variables mentioned above. It was found that nitrogen pollution in sha-(llow) ground water is due to the comprehensive influences of the fertilizer, water level depth, precipitation, hydraulic gradient and lithology and thickness of the aquifer. Especially the precipitation and water level depth have more responsibilities for the nitrogen pollution in shallow groundwater. |
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| Keywords: | Songnen Basin shallow groundwater nitrogen pollution influence factors factor (analysis) |
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