Source Apportionment of Water Pollutants in Key Rivers of Liyang City
Abstract: Source apportionment can provide the basis for comprehensive improvement of water environment. Based on the investigation and mathematical model, this paper estimated water pollutants emission and contribution from point source and non-point source in the key rivers of Liyang city. The results show that: the fishery, rural domestic sewage and city sewage treatment plant are the main water pollutant sources. The contribution of water pollutants from industrial emission source is small and the water pollutants emission from is increased from 2011 to 2013. The loss of the total nitrogen and total phosphorus from farmland accounted for 46.24% and 46.88% respectively. The loss of COD and total phosphorus from fishery accounted for 26.01% and 40.83% respectively and the pollutant contribution kept increasing. The contribution of COD, ammonia nitrogen, total nitrogen and total phosphorus from point source is 37.12%, 44.02%, 21.30% and 7.63%, and from non-point source is 62.88%, 55.98%, 78.70% and 92.37%, respectively. As a result, the management of non-point source is more important than that of point source.
文章引用: 黄振旭 , 陈 昱 , 周 涛 , 董献国 , 任 燕 , 莫永松 , 钱敏莉 , 梁 媛 , 徐 勇 (2016) 溧阳重点流域污染源解析研究。 水资源研究， 5， 59-64. doi: 10.12677/JWRR.2016.51007
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