%0 Journal Article
%A CHEN Zhen-tao
%A HUA Lei
%A JIN Qian-nan
%T Assessing the Efficacy of Water Diversion to Improve Water Quality in City River Network
%D 2015
%R 10.3969/j.issn.1001-5485.2015.07.009
%J Journal of Yangtze River Scientific Research Institute
%P 45-51
%V 32
%N 7
%X Water diversion is one of the most common methods to improve water quality in city river network. However, there is no uniform standard or system to evaluate the diversion effect. With Jianggan District of  Hangzhou City as a case study, we built a one-dimensional river network model to simulate the water quality in different diversion cases, and assessed the effect of water quality improvement through  the rate of water quality improvement, the category change index and concentration change index. Results showed that increasing water quantity could improve the water quality of the city rivers, however, the efficiency decreased with the increase of  water quantity. Moreover, the improvement of source water quality is a crucial factor which affects the diversion effect as it could apparently improve the water quality of river network, and the rate of improvement also increased with the improvement of the source water quality.
%U http://ckyyb.crsri.cn/EN/10.3969/j.issn.1001-5485.2015.07.009