Study on Plant Spatial Allocation in Wetland Park based on Waterfowl Habitat Demand:A Case Study of Lvshuiwan Wetland Park in Nanjing City
In order to scientifically and accurately study the spatial allocation of plants in wetland parks,a habi-tat suitability curve was established based on the requirements of wetland plants and waterfowls on water lev-el of key habitat factors.Combined with the spatial distribution of wetland water level,a comprehensive habi-tat model based on the habitat requirements of wetland plants and waterfowls was constructed.The spatial dis-tribution of Habitat suitability index(HIS)of wetland plants and waterfowls under the current control water level of 4.2 m and the restored control water level of 4.5 m in Nanjing Lvshuiwan Wetland Park was simulat-ed.At the same time,the Weighted usable area(WUA)and the area of high-quality habitat were calculated,and the two methods considering only plant habitat and the comprehensive consideration of plant and water-fowls habitat were analyzed and compared,and the plant spatial allocation scheme was proposed.The results showed that the area of high-quality wetland plant habitat calculated by the comprehensive method was small-er than that obtained by the single method,and the variation amplitude of floating leaves and water-supporting plants was larger than that of submerged plants,and the impact of changing water level on the habitat area of floating leaves and water-supporting plants was greater than that of submerged plants.The method of plant al-location in wetland park based on the needs of plants and waterfowls provides a reference for ecological resto-ration of wetland park.
wetland plantswetland waterfowlscomprehensive habitat modelplants spatial allocationLvshuiwan Wetland Park in Nanjing City
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