平原河网地区河湖生态复苏成效评估体系研究及应用OA

Restoring river and lake ecosystems is an important component of building a Beautiful China and one of the critical pathways for promoting high-quality development of water conservancy in the new stage.Scientific assessment of the effectiveness of ecological restoration of rivers and lakes is an essential means of understanding their restoration status.Based on an analysis of the connotation of river and lake ecological restoration,integrating elements such as water resources,water environment,and water ecology,as well as following the principles of quantifiability,monitorability,and evaluability,this paper employs the analytic hierarchy process(AHP)to construct an evaluation system for assessing the effectiveness of river and lake ecological restoration in plain river network areas.The system comprises 12 indicators across five criteria layers:water safety,water resources,water environment,water ecology,and public satisfaction.Taking the Dingbao River-Jianghai River,one of the first-batch pilot rivers for the Mother River Revival Action initiated by the Ministry of Water Resources,as a case study,this paper applied the constructed evaluation system.After determining the weights of each evaluation indicator,the ecological restoration effectiveness level value of the Dingbao River-Jianghai River was calculated layer-by-layer weighted aggregation from the indicator layer,criterion layer,to the objective layer.The results indicate that the Dingbao River-Jianghai River has reached a healthy level after the ecological restoration,which is consistent with the actual conditions of the river.However,it remains necessary to continuously strengthen long-term river management and maintenance,reinforce the follow-up management of ecological restoration,and achieve the sustainable utilization of river and lake functions.