摘要: |
通过2010年10月和2011年2月、7月共3次对梁滩河3个断面采样分析,探讨了表层底泥间隙水和上覆水中污染物之间的分布特征,并对间隙水和上覆水中的污染物浓度进行了相关性分析;结果表明上覆水污染的空间分布趋势为:天赐温泉>童善桥>土主镇;表层底泥间隙水中大部分CODcr与氮盐浓度高于上覆水,磷盐刚好相反;相关性分析表明,表层底泥间隙水和上覆水中的CODcr、TN、DTP浓度显著相关,说明间隙水中CODcr、TN、DTP的浓度是其上覆水中CODcr、TN、DTP浓度的决定因素。 |
关键词: 间隙水 上覆水 污染物 相关性 |
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The Distribution Feature of the Pollutants in Sediment Pore Water and Overlying Water of Liangtan River |
MEI Jie1,LIU Liang2,ZHOU An xing2
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Abstract: |
Through three times of sampling analysis of three sections of Liangtan River in October,2010,in February,2011 and in July,2011,the distribution feature between the pollutants of sediment pore water at its surface level and overlying water was discussed,the correlation analysis of the concentration of the pollutants in the sediment pore water and overlying water was conducted,and the results show that the spatial distribution trends of the overlying water pollution are Tianci Spring>Tongshan Bridge>Tuzhu Town,that the majority of CODcr and the concentration of the salt containing nitrogen in the water at the surface of the sediment pore is higher than that of overlying water,but the salt containing phosphorus is on the contrary. The correlation analysis shows that there is significant relation among CODcr,TN concentration and DTP concentration in the water at the surface of the sediment pore and in overlying water,which demonstrates that CODcr,TN and DTP concentration in the sediment pore water is the determinant factor of the CODcr,TN and DTP concentration in its overlying water. |
Key words: sediment pore water overlying water pollutant correlation |