Analysis Of The Coupled And Coordinated Development Of Land Use Carbon Emissions And Urbanization In Wuhan

With the accelerated pace of urbanization,the rapid and concentrated migration of population to cities has led to rapid changes in urban patterns,which are facing increasingly serious pressure of population and environmental resources,while at the same time,the unreasonable development of land by human beings has led to a rapid increase in carbon emissions from land use,which has consequently caused a large number of "ecological problems " This is detrimental to the sustainable "green" development of the region,and seriously restricts the planning and construction of "smart cities" and "resilient cities".The rapid expansion of urban built-up areas urgently needs to be transformed into sustainable green development-oriented.Therefore,the study of the interactive coupling relationship between carbon emission and urbanization based on land use has attracted much attention and has become one of the frontier research hotspots.However,up to now,there are still many problems in the lack of indepth research on the relationship between human and land.Carbon emissions at large regional scale cannot meet the needs of fine-grained urban construction;proximity coupling at intra-regional scale and long-range coupling at inter-regional scale cannot reasonably reveal the complex relationships of open urban mega-systems,while proximity and long-range coupling models can appropriately explain the coercive relationship between highly developed urbanization and gradually destroyed ecological environment.The paper takes Wuhan,a mega-city in Hubei Province,China,as the study area,analyzes the spatial and temporal evolution of land use in the city,and then estimates the land use carbon emissions at multiple scales through a land use carbon emission model and analyzes the related land use carbon emission effects.In addition,based on the near-and long-range coupling of human-land relationship,the coordination between urbanization and land use carbon emission can provide scientific support for the sustainable and green coordinated development of Wuhan,and also provide reasonable guidance and reference for the high-quality urbanization and friendly and coordinated development of human-land relationship in China.The main research content and results of this paper are as follows:(1)A "gridded" land-use carbon emission estimation method is proposed to invert the multi-scale land-use carbon emissions of Wuhan City in a long time series.To address the problem that large regional scales cannot meet the needs of fine-grained high-quality urban construction,we use the land use data of Wuhan City from 2000 to2019,take the land use structure as the breakthrough point,and use the land use carbon emission estimation method to invert the land use carbon emissions of Wuhan City based on the grid and administrative regional scales,and analyze their spatial and temporal evolution.From 2000 to 2019,the overall land use carbon emissions of Wuhan city on a grid basis showed an increasing trend,and the rising land use carbon emission area of Wuhan city accounted for 55.05% of the total area of the study area.The land use carbon emissions at the administrative area scale of Wuhan city showed a significant increasing trend,and Qingshan district had the highest increase in land use carbon emissions and Caidian district had the lowest increase in carbon emissions among all districts in Wuhan city.Multi-scale inversion of land use carbon emissions can provide data support for coupled urbanization and ecological environment studies.(2)The current mainstream coupling and coordination model is improved to quantify the near-and long-range coupling and coordination of urbanization and land use carbon emissions in Wuhan.In response to the problem that the current mainstream coupling model cannot reasonably reveal the relationship between urbanization and land-use carbon emissions,the relationship between urbanization and land-use carbon emissions in Wuhan is studied and further explored under the perspective of near-and long-range coupling of human-land relationship.20 years later,the coupling and coordination development of urbanization and land-use carbon emissions in Wuhan city based on the administrative area scale of each district shows an increasing trend,but from the grid scale,Wuhan city However,from the grid scale,there is more room for improving the coupling and coordination between urbanization and ecological environment,and the urbanization of the southwestern part of Wuhan can be accelerated to increase the area share of building land.The study can better reveal the interaction coercion laws and mechanisms between urbanization and land use carbon emissions to promote the benign and friendly development of both sides.