Research On Ecological Greenways Network And The Greenway Width For Tianmu Mountain National Nature Reserve

Ecological greenways network can connect crushing metaplasia habitat patches to ease thepressure for the conservation of biological diversity produced by the urbanization process, and provideecological protection theories and methods for the nature reserve. The ecological functions of thegreenway require reasonable greenway network structure and appropriate greenway width. TakingTianmu Mountain Nature Reserve as the research object, study ecological greenways network with thewidth of the greenway planning and design theory,in order to bring about certain guiding significancefor the ecological greenway network construction.The papers take landscape ecology theory such as island biogeography, metapopulation, thetheory of the smallest populations, biological motion, edge effect and other aspects to analysis designprinciples of greenway width, summarize the greenway network model in the ideal state, take thelandscape graph theory and the minimum cost theory to analysis Greenway network suitability,andexplore the strengths and weaknesses of Tianmu ecological greenways network construction, buildingevaluation index system.Select the Elliot‘s pheasant and Black Muntjac as target species and take its potential habitatsuitability evaluation research in Tianmu mountain, take Natural conditions such as vegetation todetermine the evaluation criteria and analytical methods for habitat suitability in the ideal state and takeevaluation for the potential suitable habitat,less suitable habitat and unsuitable habitat.The results showsthat, due to the unreasonable distribution of Mao Zhulin and coniferous forest, as well as the intensehuman disturbance in the800~1000m altitude,the potential suitable habitat, less suitable habitat andunsuitable habitat of the Black Muntjac respectively cover an area of2.2122km~2,3.0222km~2and2.9922km~2, and the respective proportions34.8%,32.7%,32.5%in the study area of9.2266km~2; thepotential suitable habitat, Buffer area and unsuitable habitat of the Elliot‘s pheasant respectively coveran area of2.8425km~2,2.9384km~2and3.4457km~2, and the respective proportions30.8%，31.9%,38.3%in the study area of9.2266km~2.To the black muntjac target species ecological greenway network, through the deformation of thegreenway width, potentially suitable habitat internal, as well as with the less suitable habitatbetween,the Greenway width generally600~900m,and less suitable habitat between generally120~300m; To the Elliot‘s pheasant target species ecological greenway network, through thedeformation of the greenway width, potentially suitable habitat internal, as well as with the Buffer areabetween,the Greenway width generally200~300m,and Buffer area between generally60~150m.