基于小流域山水林田湖草一体化保护修复的北运河上游生态修复专栏序言

Special column on ecological restoration in the upper watershed of North Canal River based on the concept of ecological protection and restoration of mountains-rivers-forests-farmlands-lakes-grasslands for small watersheds

北运河上游流域(沙河水库以上)地处山区源头和城乡结合部过渡区,面临着农业和村镇面源污染风险、河沟道生态系统退化等问题,其水环境治理和水生态修复是北运河流域水生态环境改善的重要环节.本专栏是“北运河项目”中“北运河上游水环境治理与水生态修复综合示范”课题团队近年来的代表性科研成果,遵循以小流域为单元的山水林田湖草一体化保护修复思路,在农业面源污染控制、河道生态修复、小流域综合治理等方面对研究和实践进行了梳理总结,以期为北运河流域绿色生态廊道构建提供科技支撑.

As the upper watershed of North Canal River lies in mountainous area and urban-rural fringe zone,the existing prominent problems include agricultural and rural non-point source pollution and rivers degradation.Water environment treatment and aquatic ecological restoration are the important link of supporting the improvement of water environment&ecological restoration of North Canal river watershed.This special column is a summary of typical scientific research outputs of one task of"North Canal River Project"in recent years.From the perspective of ecological protection and restoration of mountains-rivers-forests-farmlands-lakes-grasslands,this special column summarizes the research and practice in three aspects including agricultural non-point source pollution control,rivers restoration,ecological and clean small-watershed construction,so as to provide scientific and technological support for the ecological corridor construction of the North Canal River watershed.