北方城市干涸河流生态环境治理途径

以滹沱河石家庄市区段为例,针对目前我国北方城市干涸河流治理和改造存在的问题,提出"以绿代水"的生态恢复与重建模式。在对河流进行生态输水、水资源合理管理与调度的同时,选择适宜的研究尺度,恢复流域内自然植被,实现河道中心区草本滞洪补潜、缓冲区灌木束水导流、杨柳护堤造岸、过渡区林果防风固沙的"绿色滹沱",为北方城市干涸河流的生态环境治理提出新的理念和途径。

Approach of Eco-Environment Management of Urban Dry River in Northern China

As a case study of the project of "Ecological Restoration of Hutuo River in Shijiazhuang City", the paper illuminates the Green for Water model to the problem in urban dry rivers management. While meeting ecological water requirement, managing and modulating water resource rationally, the paper proposed the model of "Green Hutuo" of restoring natural vegetation in the drainage area on the basis of suitable research yardstick, that is: the river central district -- indigenous herbage of flood retardarce and water complementarity; buffering area - bushes of water control and diversion, willow and poplar of bank protection and construction; transition region - forests and fruit trees of controlling wind and fixing shifting sand. Finally, the paper provided a new notion and approach for resource and environment management of urban dry river in the northern China.