| Land use or land use cover change,which is one of the most essential ways to represent the process of interaction between human social and economic activities and natural ecological environmental change,the change of urban land use pattern is one of the most direct manifestations of the process of interaction between human activites and geographical environment among most of the urban areas of the native cities.Urban population is the main body of human-land relationship,when the urban population explores or uses frequently the regional land space resources to achieve the goal of urban social and economic construction,it will inevitably trigger lots of profound and direct changes in the regional urban land cover and even damage the operation process of the regional ecological environmental system.During the contemporary period,the acceleration of the process of urbanization in the central and western regions of China,which is not only directly drives the change of land use structural pattern,but also creates potential obstacles to the coordinated development of urban economy construction and ecological environmental system.Truly,As the capital of Inner Mongolia,Hohhot serves as the one of the central cities of Inner Mongalia provincial economic and cultural exchange and external transportation,so that it holds a high demand for the predictability and diversity of the adjustment pattern of the process of urban land use change.Moreover,from 2001 to 2016,the annual growth rate of non-agricultural land area in the urban area of Hohhot reached 2.659%,in the moment time the change of agricultural land area presented a relatively slow reduction trend,and the annual decrease rate was 0.459%.As a result,the scale of urban non-agricultural land is increasing year by year,the overall scale urban non-agricultural land change present a trend of sharp expansion of internal different properties such as reasonable layout and use of land resources development requirements of the urgency,combined with the urban land use spatial resources as the basic material of city economic construction,the research work on the gradual and long-term process of the local urban land use pattern evolution and its casual relationship for the main driving factors from different individual subsystems has the essential practical significance for the current economical social development.The process of the research work in the gradual promoting urban ecological civilization construction,utilizing the method of systematic study by the urban land use system internal changes in the environment of driving effect during the trend of era,solve the the allocation of the limited spatial resources of the regional urban land use types based on the maximum comprehensive effective.Taking the urban district of Hohhot as the research area and taking the visual interpretation foundational data of remote sensing images in the three time points of 2001,2010 and 2016 as the basic data source,the spatial and temporal change process characteristics of urban land use type structure from 2001 to 2016 were analyzed.Baed on the quite comprehensive analysis of causal relationship for the kinds of elements in the driving individual subsystems of population,economy,ecological environment,foundational construction and it like,the optimized analysis conquenece of SD model and SD-GMOP model of urban land use system were constructed,and the land area requirements of various types from 2001 to 2040 based on the two models were simulated and predicted respectively.The prediction schemes of relative scenarios simulation of two kinds of different models were taken as quantitative constraints and imported into CLUE-S simulation model to simulate the spatial and temporal evolution process of land use pattern optimization in the research area.The main conclusions of this study are as can be see the following three points:(1)During the change process of land area in the research area from 2001 to 2016,the land with the largest change range and the land with the smallest change range were special land and unused land,respectively.The total change range was 84.554% and-6.656% respectively.The land with the largest and smallest absolute values of the expansion intensity index is agricultural land and special land,with the absolute values of 39.206% and 0.098% respectively.In addition,the land with the largest absolute value transfer rate and the smallest land use type transfer rate are special land and unused land,with the average annual transfer rate of 3.237% and 0.391% respectively.(2)The spatial and temporal variation characteristics of simulation results of urban land use demand from 2020 to 2040 based on SD and SD-GMOP models show that the maximum variation range of scenario simulation of the two models is land for special use and commercial land,with the total area variation range of 93.474% and 281.730% respectively.The land with the largest land use type transfer rate based on the two different simulation models is special land and commercial land,whose values are 3.237% and 6.925% respectively.Moreover,the land use types optimized and adjusted based on the SD-GMOP model scenario simulation are residential land use and commercial land use,and their transfer rates are 3.032% and 5.673% higher than the original transfer rates of the corresponding land use types in the SD model respectively.(3)based on the two kinds of simulation scenarios of SD and SD-GMOP model respectively in 2020-2040 to the demand of the urban land utilization plan of the corresponding layout forms of urban land use pattern evolution simulation results show that the dynamic iteration through the CLUE-S model to simulate the prediction model based on SD and SD-GMOP rate of annual average into the largest land types of special land and commercial land,its value is 1.085%,1.913% respectively;The land types with the largest average annual transfer rate under the scenario constraint of SD and SD-GMOP model are all unused lands,and their values are 0.127% and 0.609% respectively. |
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