南通主城区纳潮置换水体及其绩效评估  

Replacement of water bodies by tidal prism of Nantong urban river and effect estimation

作　　者：高晓琴[1] 张金池[1] 沈波 

机构地区：[1]南京林业大学,江苏省林业生态工程重点实验室,江苏南京210037 [2]南通市水利局,江苏南通226006

出　　处：《南京林业大学学报（自然科学版）》2008年第2期109-112,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：江苏省水利科技重点项目(2006013)

摘　　要：南通属于平原感潮河网地区,在贯通工程的基础上充分利用现有的水利工程、充沛的过境水资源优势和感潮河网的潮汐水动力特性,形成南通主城区纳潮置换水体循环系统是改善南通主城区水环境质量的关键。在充分论证南通纳潮置换水体可行性的基础上,初步建立了一套现有条件下适合南通平原感潮河网水质改善需要的、具可操作性的纳潮置换水体的运行方案,并就区域引排能力的计算、引水路线的选择、引水时间及引水量的计算及论证、纳潮置换水体改善效应进行了分析。研究表明:该方案实施后可使景观连接度有所增加,整个水系形成网络结构,有利于水生生物的迁移;能有效梳理和贯通水系,提高河道物质交换和能量流动水平,增强河道的负荷能力。In consideration of the characteristics of the plain tidal river network in Nantong City,a circulation project to replace of water bodies of Nantong urban river was made using the current situation of water flow, abundant water resource and tide dynamics of the plain tidal river network, The mode of the project adopts tide continuance diversion and pump interval diversion. According to the current water flow, a workable project of Diverting Water to Flush out Pollutants was established for improving water quality in urban rivers of Nantong plain tidal river network. The capability of area diversion, the option of diversion route, calculation and demonstration of diversion time and amount and the effects after the replacement of water bodies were studied in this paper. It was favorable for aquatic life migration due to increase of Landscape connectivity. The whole water system network structure was formed. It also improved the level of material exchange and energy circulating, and enhanced the river＇s bearing capacity.

关 键 词：感潮河网 纳潮置换水体 南通 

分 类 号：X171.4[环境科学与工程—环境科学] TV85[水利工程—水利水电工程]