LANDSCAPE ECOLOGICAL EVALUATION OF URBAN GREEN LAND SYSTEM IN HEFEI

Urban green,as the main body of the natural productivity of the urban structure,plays an important role in the urban ecosystem.For scientific and reasonable evaluation of the landscape status of urban green space system in Hefei,and creating a comprehensive and scientific evaluation index system,this paper analyzed the urban green land landscape pattern in Hefei by the landscape principles and methods.This study selected eight evaluation indices,such as diversity index,evenness index,separation index,isolation index,fractal dimension index,and connectivity index,etc..The results of the study showed that the whole city was good generally.Green rate and park green area per capita were high.The overall performances of the structure in urban landscape green space are as follows.The district development was not balanced;green space type distribution was uneven;the difference between different types was too large;the separation index was high;the diversity was not high;the fractal dimension was low;the green landscape naturalness and complexity was not enough;the connectivity was low and so on.Aiming at solving these problems,some suggestions on the planning of urban green land landscape in Hefei were put forward.The results could provide a theoretical basis for the construction and designing of the green landscape system in Hefei,and it could provides a theoretical basis for the construction of the ecological garden city and forest cityas well.