Research On The Adaptability Development Of Water Landscape In Caidian District Of Wuhan Based On Coupling Coordination-relation Model

In the context of urbanization where urban development is becoming more complex and the relationship between urban and water is becoming more and more tense,the paper selected Caidian District of Wuhan City as the study region in combination with the guidance of ecological civilization construction and urban-rural integration development,and analyzed the adaptability development process of water landscape to reveal the characteristics and influencing factors in this process to promote the coordinated development of urban space and water landscape.The paper first used ENVI,Arc GIS and other software to analyze the spatial evolution of Caidian District from 1999 to 2019,including the characteristics of land use and landscape pattern changes in spatial systems and system elements,then summarized the adaptability of urban spatial evolution and water landscape.Secondly,the coupling coordination-relation model is introduced to assess the adaptation relationship between the spatial development of Caidian District and the water landscape.Including the changes in the coupling and coordination degree of the spatial development of base layer,occupation layer,various system elements and the water landscape.The spatial correlation of the coupling coordination degree of different water landscape buffer scales and the overall regional scale was also included.Finally,using the above analysis results as a basis for regional spatial regulation,an optimization strategy for urban-water adaptation spatial development was proposed for the areas of the ecological resource concentration area,the water landscape function stress area and the urbanization development priority area to guide the healthy and sustainable development of the city.The main conclusions of this paper are as following:(1)The spatial evolution of Caidian District from 1999 to 2019 reflects the impact of urbanization on the natural landscape while also being restricted by its stable pattern.The adaptability of spatial evolution to the water landscape can be divided into forced adaptation stage,active adaptation stage and transformation stage.In addition,it has the adaptive characteristics of aggregation,non-linearity,flow,and diversity,reflecting the interaction state,dynamic change trend and different development modes of the spatial evolution of various system elements and the water landscape.(2)The assessment results of the coupling coordination-relation model mainly reflect that the adaptation relationship between urban spatial development and water landscape has gradually become tense in terms of time series changes;different spatial systems have different adaptation cycles to the water landscape;1000m buffer is the main range of self-adjustment for urban spatial development to adapt to the water landscape;the emergence of partial and overall characteristics of spatial changes,and changes in the spatial coupling mode of different system elements and the water landscape can affect the changes in the adaptation relationship.(3)The optimization of the spatial development of the ecological resource concentration area needs to be carried out in terms of protection and improvement of the landscape pattern of the base layer,spatial adjustment of system elements and improvement of the residential environment of urban and villages.The spatial development optimization of the water landscape function stress area first requires the control and guidance of the overall land use space development,then adjust the landscape structure of green land and water landscape,and finally plan the redundant waterfront space.The optimization of spatial development of the urbanization development priority area promotes the hybrid coordination of the overall spatial pattern and the adaptive transformation of planning management through the reconstruction of the base layer.