Study On Bird Landscape Of Green Space In Nanning Urban Park

In the context of urbanization,in order to improve Nanning's urban ecological system,with the built-up area of Nanning city as the research scope,the bird landscape of Nanning's urban park green space is studied through literature review,field investigation,data analysis and other methods.First,the26 Nanning urban parks and green spaces are divided into 2 categories,including 12 comprehensive parks and 14 specialized parks.Secondly,the bird landscape is divided into 8 categories,including the composition of survey species,the composition of protected species,the composition of biological populations,the composition of ecological groups,the composition of residence types,the composition of flora types,the composition of feeding habits,and the composition of habits.Then analyze the park factor and bird factor,and analyze the correlation between the park area,perimeter and the species and number of birds.Then analyze the bird landscape distribution of urban park green space,including common species,common species,and rare species.Finally,the calculation formula is used to analyze the dominance,diversity,uniformity and similarity of birds.The main conclusions of the study are as follows:(1)This survey recorded a total of 296 species of birds in 20 orders,68families,and 115 species of non-passerines in 31 families,accounting for38.85%of the total bird species in urban parks and 181 species of passerines in37 families,accounting for urban parks.The total number of species is 61.15%.A total of 8 species on the IUCN Red List of Endangered Species,10 species on the International Trade Convention on Endangered Species of Wild Fauna and Flora,23 species on the China Red List of Species,and 22 species on the China Red Data Book of Endangered Species have been recorded.(2)Among the 12 comprehensive parks,Nanhu Park has the most species of birds,Qingxiu Lake Park has the largest number of birds,and Xinxu River Park has the least species and number of birds.Among the 14 specialized parks,Qingxiu Mountain Scenic Area has the most species and number of birds,and Folk Song Lake Scenic Area has the least species and number of birds.The species of birds in urban parks are positively correlated with the area and perimeter of urban parks and green spaces,and the number of birds in urban parks and green spaces is positively correlated with the area and perimeter of urban parks.(3)The largest number of bird species and numbers in Nanning's urban park green space in January is related to the greater number of winter migratory birds in Nanning.In January,9 species of winter migratory birds were added.The least species and number of birds in Nanning urban park green space in July is related to the fact that there are fewer summer migratory birds in Nanning,and there are only two summer migratory birds in July.There are 19 common species,30 common species and 247 rare species in the bird landscape of Nanning urban park green space.There are 4 dominant species of bird landscape in Nanning urban park green space,20 species of common species and 272species of rare species.(4)The 12-month bird diversity of Nanning urban parks and green spaces,from high to low,are:April,March,January,February,May,December,November,October,August,September In June,and July,the Shannon-Wiener index was 4.168,4.091,3.962,3.918,3.906,3.906,3.855,3.664,3.407,3.368,3.065,2.889.The 12-month bird uniformity of Nanning urban park green space from high to low is:July,December,August,November,September,October,June,March,May,April,February In January,the Pielou index was 0.981,0.962,0.958,0.949,0.947,0.941,0.941,0.916,0.908,0.907,0.894,0.870.(5)Measures to protect bird landscapes include expanding green areas,increasing food source plants,retaining natural shrubs and grasses,controlling water pollution,dividing functional areas,hanging artificial bird nests,popularizing bird knowledge,and developing ecological parks.From the perspective of bird diversity protection and urban land use,it is concluded that the green area of Nanning urban park is about 60hm~2,which can have a stable bird community.