浅谈张掖城区水生态修复保护工程规划

Brief Discussion on Planning of Water Ecological Restoration and Protection Project in Urban Area of Zhangye

张掖古有“半城芦苇半城塔,一湖芦花赛江南”的美誉,外部护城河环绕,城内大小池塘串联,足可见其丰富的水系造就了良好的城市水生态及湿地景观。然而随着城市的快速发展,城区内水域生态环境受到一定程度的破坏,尤其是城东南地区,现状水系多被城市建设阻断,水生态环境相对较为脆弱。现通过对现状分析及张掖总规的研究,提出利用农灌渠农业退水作为水源,沿三环路建设环城水系的规划思路,并通过“生态融水、设坝驻水、拓挖汇水、科学绿水、河渠贯通“五大策略,最终实现”水润张掖、文化古城”的规划愿景。其成果可为其他城市水系规划提供参考。

Zhangye has an ancient reputation of"half a city reed half a city tower,a lake with flowers racing Jiangnan".Surrounded by a moat and connected by ponds and ponds,it is clear that its rich water system has created a good urban water ecology and wetland landscape.However,with the rapid development of the city,the water ecological environment in the urban area has been destroyed to a certain extent,especially in the southeast of the city.The present water system is mostly blocked by urban construction,and the water ecological environment is relatively fragile.Based on the analysis of the present situation and the study of the overall planning of Zhangye,the planning ideas of using the agricultural drainage of irrigation canal as the water source and constructing the water system around the city along the Third Ring Road are proposed.And through five strategies of the"ecological meltwater,dam retaining water,excavating catchment,scientific green water and waterways connection",the planning vision of"water moistening Zhangye,cultural city"is finally realized.Its effect can provide the reference for the water system planning of the other cities.