Green Space Ecosystem Network Building Influence On Landscape Pattern Evolution Of Wuhan

Protect the original ecological green space in city system actively,make full use of original natural ecology landscape pattern and on this basis,planning and layout of green space system scientifically and systematically,makes it can really give full play to the ecological benefits of urban "green space ecosystem network ",this will be the research emphasis of urban ecological environment protection in the future.This paper obtained the three periods Landsat-TM remote sensing image of 2005,2010,2013 in Wuhan and relative shapefile format documents of Wuhan,using ArcGIS,ERDAS and ENVI software as the platform to complete the calibration,cutting,interpretation,precision evaluation of interpretation result,etc.Using ArcGIS analysis of the transfer matrix of land use type,construction of temporal and spatial scales of landscape pattern index system,using Fragstats software to calculate the two dimensions of landscape pattern index,they are respectively landscape level and plaque type level.On this basis,to analysis the space-time evolution of the landscape pattern in Wuhan.In order to improve the urban ecological environment quality,and create a better livable environment,Wuhan has made a lot of research and exploration in the aspect of green space ecosystem network construction,a series of green space planning and construction scheme has been created,played and will continue to play a significant impact on the whole landscape of Wuhan.Through consulting a large number of data,books,literature,bulletin,government planning,report,etc.,based on text information and basic data,make full use of ArcGIS analysis and mapping function,to make relevant thematic maps.On this basis,the time for clues,to summarize and analysis the green space ecosystem network build process of Wuhan.Contrast research in green space ecosystem network building of Wuhan and the space-time evolution of the landscape pattern,complete the landscape index correlation analysis of green land and waters,farmland,construction land,other land,combining the quantitative and qualitative,from the area structure of landscape types,the landscape shape,fragmentation degree,aggregation degree and so on,to study the green space ecosystem network building influence on landscape pattern evolution.About the area structure of landscape types,from 2005 to 2013,the green space area is increasing in main urban area of Wuhan,the green space network constantly improve,green areas are increasing proportion of the overall landscape,at the same time,the proportion of the other landscape types have been weakened.The promulgation and implement of green land planning,improve the national environmental protection consciousness,make the green space outside the main urban area maintain the stability and increase in recent years.Landscape shape aspects,in a series of grand and led by the influence of green space overall layout planning,water,farmland,construction land and other land landscape shape also have the corresponding change,the overall trend is that the landscape shape index gradually become smaller,the shape of each landscape type become rules and simplicity.Fragmentation degree and aggregation degree aspects,series of green space ecosystem network construction engineering in wuhan,large-scale construct and protect the large area green land,objectively promote the integration of the optimization of land use types and reasonable layout in Wuhan,therefore,the landscape types of fragmentation degree decreases continuously,and the concentration increase continuously.