湿地恢复与生境改造的规划设计——以武汉市郊涨渡湖为例

依据野外考察和实地调研,对武汉市郊涨渡湖区湿地恢复与生境改造进行了规划设计,首先基于高程、坡度、土地利用/土地覆盖等不同的组合分析了湿地恢复与生境改造的适宜性,并在此基础上确定了湿地恢复与生境改造的目标,以及实现这些目标应采取的相关措施及所涉及的空间范围.研究表明,基于DEM和土地利用/土地覆盖的适宜性分析为湿地恢复与生境改造规划设计的提供了科学依据,而湿地恢复与生境改造实施措施的确定和空间定位使湿地恢复与生境改造工程更具可操作性.最后,对以涨渡湖为代表的长江中游高强度人类活动区域湿地恢复与生境改造的方法进行了探讨.

Wetland Restoration and Habitat Rehabilitation in Human Dominated Area:A Case Study in Zhangdu Lake, Wuhan City

Zhangdu Lake is a typical human dominated wetland located in outskirt of Wuhan city. Selected as a pilot site for wetland conservation and restoration by WWF, a comprehensive project of wetland restoration and habitat rehabilitation will be initiated and conducted in the area. In response to these initiatives and to build a scientific basis for the project, this research identified landscape targets for wetland restoration and habitat rehabilitation based on suitability analysis from DEM model and existing landuse/landcover. In addition, ecological measures and associated adjustments in landuse/landcover to realize the landscape targets were also developed and identified explicitly, which can be used to guide the practice of wetland restoration and habitat rehabilitation. Finally, the following key points were put forward especially on wetland restoration in human-dominated area: 1) great importance should be attached to feasibility, magnitude and impacts of the wetland restoration and habitat rehabilitation; 2) balance natural restoration and human interference; 3) combine temporal strategies with ecological and spatial strategies; 4) special consideration should be given to the influences on neighboring area and interactions between lowland and upland; and 5) integrate the wetland conservation planning into regional landuse planning, ecotourisim planning and agricultural planning etc.