The Study On Conservation Planning Of Biodiversity In Xuancheng City,Anhui Province

With the intensification of the process of urbanization,growth in population and increasing of human activity,urban environment has being deteriorating such as haze and fogs weather increased,freshwater resource got deficient,"urban heat island" effect becomes more and more severe and so on,all these made urban environment worsen for creatures,biodiversity reduced.The conservation of urban biodiversity has attracted more attention,the planning and implementation of conservation of urban environment is material base for realization of urban biodiversity stabilization and landscape richness,important guarantee for the urban sustainable development.The paper took the City of Xuancheng as a model to explore the patterns that city biodiversity conservation planning which coordinated with the development of urban on the basic of collection and analysis of plants,animals and ecosystem,hopefully to offer some theory and practice reference on biodiversity conservation to other cities in China.Main results in this paper are as follows:Through the investigation,the statistics and the analysis,there are 2343 species of vascular plant,belonging to 205 families and 943 genus.Inside city,including 134 species of fern belong to 34 families and 69 genus,41 species of gymnosperm,belonging to 8 families and 22 genus,2168 species of angiosperm,belonging to 163 families and 852 genus.In addition,there are 419 species of wildlife,including 58 species of mammals belong to 20 families,21 species of amphibians belonging to Anura,6 families,43 species of reptiles belonging to 9 families,211 species of birds belonging to 43 families,86 species of fish belong to 19 families in Xuancheng.From wildlife richness;vascular plant richness;diversity of ecosystem species;completeness of vertical stratification of vegetation;Species specific;invasion extent of external species and extent of biological invasions,these six aspects have carried out the biodiversity appraising.By using country as the basic unit and calculate biodiversity index(BI)to evaluate the biodiversity in Xuancheng city and come to be that the biodiversity index of municipal district of Xuancheng,Langxi country,Guangde country,Jing country,Jixi country,Jingde country and Ningguo city respectively are 43.629、37.055、37.818、38.562、42.108、35.410and37.684.The evaluating result is that belong to the common region on biodiversity are municipal district of Langxi country,Guangde country,Jing country,Jingde country and Ningguo city,belong to the medium region on biodiversity are Xuancheng and Jixi country.On the baisis of investigation and analysis of the biodiversity situation in Xuancheng city,the planning of biodiversity conservation has been carried out in the levels of the genetic diversity,the species diversity,the ecosystem diversity and landscape diversity,and put forward the specific measure which has short-term and long-term signnificance...