Research On The Change And Construction Strategy Of Ecological Garden City Green Space Based On MSPA

Since the beginning of the 21 st century,China’s urbanization process has accelerated,the economy has grown rapidly,and urban land has expanded rapidly.These are accompanied by a reduction in green areas and the fragmentation of green spaces.In order to alleviate the continuous deterioration of the ecological environment,improve the status quo of the continued extinction of species,and also the green homes of urban residents,in2004,the Ministry of Construction of China announced the implementation of the"ecological garden city" advice,and issued the "National Ecological Garden City Standards(Temporary).At this point,the construction and declaration activities of the“National Ecological Garden City” are in full swing in China.The article selected Hangzhou,Suzhou and Xuzhou,which have been approved as ecological garden cities,as the analysis objects.The Envi software was used to extract the remote sensing images of different time periods in the sample city,and the spatial and temporal changes of the area of the green space and water body were obtained.The acquired land classification files are reclassified by Arcgis,the green space and water body are used as the foreground layer,and other land types are used as the background layer.According to the MSPA principle,Gudios is used to analyze the reclassification files,and finally the data and morphology of the sample urban green space pattern are obtained.Time and space changes.In addition,through the data review,the sample urban green space construction is sorted out,combined with the change of green space area and the change of green space spatial pattern,and the impact of green space construction on the green area change and green space spatial pattern change is summarized.Declaration of ecological garden cities in other cities.The main results are as follows:(1)From the perspective of the change of green area,the construction of sampleurban green space has increased after 2005.It can be said that after 2005,the green space construction of these cities has begun to be fully rolled out.(2)Combing the changes in the green space pattern of the sample city.There is no uniform law for the changes in the core area and the isolated area.However,after 2010,the three areas have increased the proportion of the area and the number of plaques.Therefore,it can be seen that in the later stage of ecological construction,the sample cities began to pay attention to the construction of ecological connectivity and achieved certain results.(3)All three cities carry out corresponding green space construction activities according to their own characteristics,mainly starting from the following two aspects:enhancing green space connectivity,exploring existing resources and strengthening core area construction.There is still a lack of control over the number of isolated islands and the improvement of the green space pattern.Therefore,the following suggestions are proposed for the construction of green space in other cities: 1 Exploring existing resources(including high-quality resources and abandoned resources)for large-scale green space construction to enhance the core area;2 combing existing water systems and roads,and conducting ecological corridors Road construction,enhance the connectivity between green spaces;3 green space construction and ecological corridors simultaneously to prevent the fragmentation of green space patterns.