Quality Evaluation Of Land Space Use In The Guangdong-HongKong-Macao Greater Bay Area Urban Agglomeration

With the increase of our national strength,our country has a pivotal position on the international stage.After meeting the basic material needs of the Chinese people,their requirements for the quality of life are also increasing day by day,and people are yearning for a better life.“Better city,better life.”--As the slogan of Word Expo2010 Shanghai China,let more people have expectations and understanding of urban life.As early as the turn of the century has started to develop the course of urbanization in our country,nearly a decade of development speed is remarkable,has been basically formed a“Beijing-Tianjin-Hebei Urban agglomeration,”“Yangtze river delta Urban agglomeration,”“Sichuan-Chengdu Urban agglomeration”and so on,with one or two major cities or super first-tier cities to gather the core of urban agglomeration,the core city and through its own development bring forward radiation for around the city,making City clusters have developed in a sound way.Under the background of rapid economic development and gradual improvement of urbanization policies in the 20^thcentury,the huge economic benefits generated by land development make the speed of land development too fast,the city tends to expand indefinitely,and the way of land use gradually becomes unreasonable.The quality of land use can be expressed through the use of land quality evaluation intuitively and display,to alleviate the current unreasonable land use configuration,taking quality as the foundation of utilization of the land space,respectively from a large bay area of Guangdong mainland urban agglomeration of land production functions,land of the living function and ecological function three aspects of land,on the basis of the function of“production-living-ecology”quality of land use;selected in 2013 and 2018,as the timing of the land quality research,using the coupling coordination degree model and the technology of Arc GIS plot to“production-living-ecology”function of land,intuitive clearly expressed in mainland,Hong Kong and Macao to study period big bay area quality of urban agglomeration of land use change situation,based on deduce the development trend of quality of land use,for the soil the use of policy to provide some theoretical basis.The following conclusions are drawn from the study:1.During the study period,the quality of“production-living-ecology”function of land in the mainland urban agglomeration of The Guangdong-Hong Kong-Macao Greater Bay Area has a great spatial difference,with Shenzhen and Guangzhou being the high-value area and Zhaoqing Jiangmen being the low-value area.2.The overall level of coupling coordination degree of land function in the mainland urban agglomeration of the Guangdong-Hong Kong-Macao Greater Bay Area is low,and there is no significant improvement during the study period.3.The insufficient connectivity among cities in the mainland urban agglomeration of the Guangdong-Hong Kong-Macao Greater Bay Area leads to the emergence of three development echelon in one urban agglomeration,which fails to show its competitiveness in the bay area of the world.