环境工程学报2017，Vol.11Issue(6)：3545-3554,10.DOI:10.12030/j.cjee.201610185
基于层次分析法的再生水补给型城市河湖水生态修复技术评价指标体系及其应用
Evaluation method of water ecological restoration technologies in urban river and lake supplied by reclaimed water established by analytical hierarchy: Establishing and application
摘要
Abstract
Due to severe shortage of water resources in large city,the reclaimed water has been used as an important unconventional water source that was a good supplement for the urban river and lake landscape.The amount of reclaimed water increased significantly every year.The huge supply of reclaimed water led to the serious ecological and environmental problem.To solve it,many engineering technologies have been applied in urban river and lake landscape to improve the ecological and environmental quality.However,the present evaluation index and method were shortcoming for the evaluation of engineering technologies.In this study,through a large number of literature review and on-site investigation,an index system including 19 indexes,7 criteria,3 systems of environmental benefit was established to evaluate performance,technical maintenance/management and social economy function of engineering technologies.This evaluation and index system could be applied to remediate technological and environmental quality of the urban river and lake landscape that were supplied by the reclaimed water.A group decision-making model of AHP was employed to determine the weights of the indicators and the first five important index were algal biodiversity,aquatic plants coverage,dissolved oxygen (DO),comprehensive nutrition state index (TLI),and oxygen demand (PI or COD).At last,the Taoranting Lake in Beijing was studied as a case for comprehensively evaluating the effect of water ecological restoration.The evaluation result score showed a " good" state,indicating that the Taoranting Lake remediation engineering made a positive improvements on the water quality and ecosystem.The used engineering technology was suitable for the personnel and economic investment.This remediation engineering project could be widely applied after promoting.关键词
再生水/城市河湖/生态修复/评价指标体系/层次分析法Key words
reclaimed water/urban river and lake/ecological restoration/evaluation and indicator system/analytical hierarchy process分类
资源环境引用本文复制引用
张瑞,刘操,顾永钢,孙德智,齐飞..基于层次分析法的再生水补给型城市河湖水生态修复技术评价指标体系及其应用[J].环境工程学报,2017,11(6):3545-3554,10.基金项目
北京市科技计划项目(Z151100002115008) （Z151100002115008）
