延安城市河道景观生境修复模式研究

Study on City River Landscape Model based on Ecological Restoration in Yan'an

文章从河道生境修复的视角针对延安城市降雨不均、水土流失等条件下河流存在水位周期性剧烈变化、水质泥沙含量高、生境不稳定等问题,通过对延安地形坡度、植被覆盖、生物多样性、河道径流等级等影响生态敏感性数据的解读,比对河流景观建设措施与建成后动植物种类等实态数据,总结延安城市河道生境修复中斑块引入、廊道介入和基质融入的策略,构建延安城市河道景观生境修复多层立体复合模式,为该地区城镇河道景观生态保育、水系治理、防洪防灾提供参考。

This paper aims at problems such as periodic and drastic changes,high sediment of river water,unstable habitat under uneven rainfall and soil erosion in Yan'an from the perspective of river habitat restoration,ecological sensitive data such as topographic slope,vegetation biodiversity and river runoff grade can be interpreted,data such as animal and plant species is compared before and after river landscape construction,the strategy of implanted plaques,introduced corridor and intervented matrix in Yan'an City river habitat restoration is summarized,multilayer three-dimensional composite pattern of Yan'an City river landscape habitat restoration is constructed.Pattern of Yan'an City river landscape habitat restoration is helpful to conservative ecology,improve water system,prevent disaster and flood.