Response of bird diversity to environmental factors in recreational green spaces in Kunming City
[Objective]The objective of this study is to investigate bird communities in parks,roadside green spaces,and community green spaces in Kunming urban construction zone,analyze the differences in bird community composition across different recreational green spaces and their root causes,and explore the impact of urban green space environments on bird communities.[Method]From July 2021 to August 2022,birds were investigated in three types of recreational green spaces in Kunming City.Redundancy analysis and multiple linear regression were used to analyze the relationship between the diversity of resident birds and environmental factors during breeding and non-breeding seasons.[Result](1)A total of 31 058 individuals in 176 species were recorded,belonging to 17 orders and 53 families,which included 1 species under national first-class key protection and 12 species under national second-class key protection.(2)Parks had the highest richness,abundance,and Shannon-Wiener diversity index of bird species,followed by roadside green spaces,and community green spaces had the lowest.However,the Pielou evenness index showed the opposite trend.(3)Redundancy analysis indicated that other internal environmental factors,except for the green space shape index,had a promoting effect on improving bird diversity.(4)Multiple linear regression showed the building index in buffer zones of 50 and 400 m was negatively correlated with bird diversity.The distance from the city center was positively correlated with bird diversity.The distance from Dian Lake was negatively correlated with bird diversity in roadside green spaces.The distance from the mountain was positively correlated with bird diversity in roadside green spaces,but negatively correlated with bird diversity in community green spaces.[Conclusion]In the future construction of recreational green spaces,it is necessary to reduce the impact of surrounding buildings on parks and roadside green spaces,increase heterogeneous landscape habitats,and focus on enhancing the richness of vegetation communities inside community green spaces.[Ch,3 fig.3 tab.28 ref.]
birdsseasonrecreational green spacesresidence typeKunming City
国家科技期刊平台
NSTL
万方数据
