Research On The Ecological Planning Of The Urban Suburban Landscape Based On GIS And Fragstats

In recent years,the development of many large cities in China has changed from the original centripetal-style into centrifugal and decentralized development,and the urban planning and management also will be transferred to the suburban areas located in city periphery.While people pay attention to the speed of urban development,they add the issues of urban development quality to the overall goal of urban planning,focusing on the control of urban environment and the visual perception to landscapes.They try to plan the earth landscape,and to beautify the city.The earth landscape is divided into urban landscape and natural landscape according to analyzing the examples of Xianglan town and Maoer Mountain respectively during the study of the ecological planning of urban and suburban landscape.In order to analyze the internal structure and visual representation of the earth landscape more accurately and scientifically,this study is based on landscape ecology and visual analysis with the addition of ArcGIS and Fragstats as technical platform,and to utilize the analysis of landscape pattern in landscape ecology theory,to analyze the landscape patches,corridors and matrices of urban land and natural landscapes,to study the relationship between landscape structure and spatial configuration and also to find the problems in this pattern.The static and dynamic viewpoint of the landscape are analyzed with the method of visual analysis.The landscape is analyzed in the way of viewpoint,field of vision and visual angle to meet the viewable demand of the landscape,and the comfortable demand and the aesthetic appearance of the landscape.Based on the research methods and ideas of literature collection,field investigation,quantitative analysis,spatial superposition and software analysis,it makes a detailed and thorough analysis of Xianglan Town and Maoer Mountain,and provides the conditions for its landscape planning strategy in the research.Firstly,in the analysis of landscape spatial pattern of landscape,uses ArcGIS for the reclassification to the earth landscape,according to the land use types divides the patches of the earth landscape completing the patch grid processing,and obtains the landscape types of grid map.Then using Fragstats software to calculate landscape spatial structure,according to the quantitative data,and summarizes the problems and analyzes the causes of the existing problems of the landscape spatial pattern,and carries on the relevance analysis of the characteristics of the patches.Then completes the landscape river corridor hydrological analysis,and the reachability analysis of the traffic corridors,and the corridor landscape features analysis by using ArcGIS.Finally the use of ArcGIS and visual analysis method combined with the analysis of network matrix based on the visual landscape.Makes the delineation of landscape area of the static and dynamic point of view clear,and sums up the similarities and differences between the landscape pattern analysis and the visual analysis of the urban landscape and natural landscape.In the subsequent landscape ecological evaluation,ArcGIS is used to analyze and evluate Xianglan Town and Maoer Mountain landscape sensitivity and landscape suitability.The evaluation of landscape sensitivity is divided into landscape ecological sensitivity evaluation,and landscape visual sensitivity evaluation.The former is the research and analysis of the landscape elevation,slope,ups and downs,waters,roads,construction land of the buffer zone,and the latter is the visual analysis of landscape in the level of visual comfort and visual aesthetics to clear the static view of the corresponding view of the elements with continuous,beautiful composition,style,unity and color coordination characteristics,dynamic view of the corresponding visual point of view reasonable disposition of domain blind spot and scenic area.The suitability of the landscape,the main terrain,hydrology,farmland for the single factor suitability evaluation,and then superimposed the landscape comprehensive suitability evaluation results.According to the evaluation results,the ecological landscape planning and visual planning of the urban land and natural land in the earth landscape are respectively carried out,and the land landscape planning strategy combining rationality and sensibility is obtained.