ABSTRACT

This study selected nine typical urban lake-wetlands in Daqing as the research object, and analyzed the key factors influencing diversity of the lake-wetland bird based on GIS technology and the field investigation. The bird diversity index (H ‘) was significantly positively correlated with the proportion of grassland area within the 500 m buffer zone, and the bird diversity was positively correlated with the proportion of grassland area, and grassland became the main habitat or foraging place for birds. Multiple regression analysis of common species and 10 habitat environmental characteristics parameters showed that there were inter-species differences in habitat parameters affecting distribution of birds, which was related to the differences in bird adaptability to different habitats. Moreover, the diversity of birds decreased with the increase of the proportion of urban construction land and the degree of human disturbance. So maintaining the diversity of habitat types and structures is the key to improving the richness of birds. Measures to protect the natural habitat of city and restore the effective habitat of plants and plants will help to increase the diversity of species in urban lake-wetlands.

摘要

本研究选取大庆市9个典型的城市湖泊湿地为研究对象，基于GIS技术和实地调查分析影响湖泊湿地鸟类多样性的关键因素。鸟类多样性指数（H')与500 m缓冲区内的草地面积比例呈显着正相关，鸟类多样性与草地面积比例呈正相关，草地成为鸟类的主要栖息地或觅食地。常见物种和10个栖息地环境特征参数的多元回归分析表明，影响鸟类分布的栖息地参数存在种间差异，这与鸟类对不同栖息地的适应性差异有关。此外，鸟类的多样性随着城市建设用地比例的增加和人为干扰程度的增加而减少。所以保持栖息地类型和结构的多样性是提高鸟类丰富度的关键。