漓江补水工程对桂林市区河段水质的影响分析

通过定量比较枯水期漓江桂林市区段在3种不同条件下，其主要污染物高锰酸盐指数、氨氮的浓度变化情况，来评价各主要断面的水质类别。分析并预测了待建的斧子口、川江、小溶江3个漓江防洪和补水工程枢纽建成后，与已实施补水的青狮潭水库枢纽联合调度运行时，可使枯水期漓江桂林市区段的水质全段达标，并使主要超标污染物达到零削减。对桂林市区的供、取水水源地水质的改善将起到有利的促进作用。

Lijiang river water supplement project and its influence on water quality in Guilin City section

By quantitatively comparing the variation of the major contaminations of CODMn and NH3-N in the lijiang river of Guilin city section under three different conditions during dry period, an appraisal is made on the water quality classification for various cross sections. It is analyzed and predicted that the quality of Lijiang water in the whole Guilin city section will conform to standard in dry period and the major contamination beyond standard will be zero put down after the three reservoirs of Fuzikou, Chuanjiang and Xiaorongjiang which are to be constructed for flood protection and water supplement of Lijiang river are completed and participate in the joint operation and control together with Qingshitan reservoir which has been filling water into Lijiang river. The project will also promote the improvement of water quality at the source of domestic water supply for Guilin downtown area.