宁波市城区河道水环境综合整治效果评价方法及应用  

AN EVALUATION FRAMEWORK FOR THE EFFECT OF COMPREHENSIVE TREATMENTS AND APPLICATION IN NINGBO URBAN RIVER

作　　者：程军蕊[1] 徐继荣[1] 郑琦宏[1] 陈鹏程[1] 

机构地区：[1]宁波大学建筑工程与环境学院,浙江宁波315211

出　　处：《长江流域资源与环境》2015年第6期1060-1066,共7页Resources and Environment in the Yangtze Basin

基　　金：浙江省自然科学基金项目(LY14B070003);宁波市自然科学基金项目(2009A610159);宁波市内河管理处委托项目(HK10164)

摘　　要：城市河道水环境综合整治需要科学合理的评价体系来指导和评估整治工作绩效。针对城市河道的水环境特征,采用系统分析和专家调查法建立了城区河道水环境综合整治效果评价的指标体系与数学评价模型,指标体系包括目标层指标1项、准则层指标3项、评价层指标10项以及调查监测指标层15项,共4个层次。将建立的评价方法应用于2012年3~10月宁波市11条城区河道水环境综合整治效果的评价,获得城区河道综合整治效果评分值在48.4~91.4,评价结果可定量描述治理工程取得的环境效果,为城市河道水环境综合整治与定量考核提供依据。Urban rivers are hybrid ecosystems and exert different key ecological and societal roles within urban ecological systems. With the acceleration of urbanization and rapid development of social economy, the urban river pollution is becoming more problematic for many cites in China, as well as in Ningbo, a city located in the middle of the coastal line of the Chinese Mainland. To recover river social functions, restore ecosystem services and improve the environmental quality of urban human settlements, many integrated control measures were employed in urban river comprehensive restoration, which involved a lot of investment and efforts. To reduce the cost of control measures, an evaluation framework was needed to assess the efficiency and guide the practical work of urban river comprehensive restoration; it was also an important tool to support the work of managers of urban river environments. The purpose of this paper was to propose an evaluation methodology to meet the need of urban rive management. An evaluation index system and corresponding evaluation method were established by using expert investigation and systematical analysis, in which, the evaluation index system comprised four layers and the individual evaluation indexes reflecting various requirements of the question. Then, the proposed evaluation method was applied in Ningbo urban river management. In the case study, the water quality monitoring and public surveys were conducted before and after the river comprehensive treatments of 11 urban rivers in Ningbo in March and October in 2012. The monitoring water indices included transparency, water temperature, total phosphorus （TP）, total nitrogen （TN）, ammonia nitrogen （NH3-N）, dissolved oxygen （DO）, permanganate index（CODMn）, chlorophyll a （chla）. The comparison of monitoring results showed that before urban river interventions, the average concentrations of TP, TN, NHa-N, CODMn and DO were 1.05, 13. 64, 9. 51, 10. 96 and 7.4 mg/L, respectively, and chlorophyll a was 58.2 mg/m^3;

关 键 词：城区河道 水环境综合整治 指标体系 评价方法 

分 类 号：X829[环境科学与工程—环境工程]