滇池湖滨区湿地鸟类栖息地适宜性评价研究

Study on Habitat Suitability Evaluation for Wetland Birds in Dianchi Lake Wetland

2018年7月至2019年5月,每月对滇池湖滨区28个样点和主城区3个滨水公园在内的共计31个样点进行湿地鸟类丰富度和土地覆被因子的调查。通过计算显著影响湿地鸟类丰富度的土地覆被因子参数的适宜性指数(HSI)单因子指数,采用单因素聚类分析将综合HSI(HSIt)分类,构建滇池湖滨区湿地鸟类栖息地的HSI模型,以此评价该湖滨区各样点作为湿地鸟类栖息地的适宜性。结果表明:滇池湖滨区的样点中除东大河的HSIt显著高于其他样点为极高适宜区,其他样点HSIt聚类均值均小于0.6,划分为高适宜区7个、中适宜区10个、低适宜区10个。而城区滨水公园的3个样点中,除翠湖为低适宜区外,莲花池、篆塘的HSIt显著低于其他样点,为极低适宜区。

From July 2018 to May 2019, 31 sample points including 28 samples of Dianchi lakeside and 3 samples of urban waterfront park were investigated monthly for species richness of wetland birds and land cover factors. Taking the land cover parameters that significantly affect the species richness of wetland birds as the single factor index of habitat suitability index(HSI), the HSI model is further constructed to calculate the habitat suitability index(HSI) of wetland birds for various points, and the HSIt was classified by single factor cluster analysis. The results show that among the samples in the lakeside of Dianchi Lake, the HSIt of Dongdahe is significantly higher than that of other samples, which is extremely high, and the clustering mean of HSIt of other samples is less than 0.6, which can be divided into 7 high, 10 middle and 10 low suitable areas. Among the 3 samples of urban waterfront park, except for Cuihu, which is a low suitable area, the HSIt of Lianhuachi and Zhuantang are significantly lower than that of other sample points, which is extremely low.