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Regional Differences of Land Use Change in Chongqing City

Author: ZhangJingFang
Tutor: DiaoChengTai
School: Southwestern University
Course: Physical Geography
Keywords: Metropolitan area District WESTERN Three Gorges area Land-use change Driving force
CLC: F224
Type: Master's thesis
Year: 2007
Downloads: 470
Quote: 0
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Abstract


For nearly a century, with the population growth and technological progress, the range of human land use continues to expand, the strength to continue to strengthen, led to a large number of global environmental problems. Land use change an important part of global environmental change and one of the main reasons, to strengthen the study of land-use change for the protection of the region's sustained economic development, protection of human living environment conditions of security, has a very important role, which is geography the forefront of research and hot spots. Since Chongqing became a municipality in 1997, the rapid economic development, a substantial increase in population, the increasing demand of water and soil resources and the living environment of pressure increase, making the depth, breadth and speed of the Chongqing Land Use emerged rapidly increasing trend compared to the previous . The same time, Chongqing covers an area of ??82,400 km 2, is China's largest municipality, there is a big difference between the different regions of the land resource situation, population, economic development level, the speed, the degree of change in land use change and changes in direction showing a significant difference. Therefore, the study the Territory since Chongqing Municipal Land Use Change and the main driving force of regional differences, the reasonable regulatory regions of the contradiction between people relations and promoting the sustainable development of the regional economy has a positive effect. In this paper, based on the analysis of the domestic and international land use change research progress, according to the land use data for 1997-2005 and socio-economic data, using a combination of qualitative and quantitative various research methods developed economies of the different levels of development in Chongqing city circle, Yuxi economic corridor and the Three Gorges reservoir area ecological economic zone land use change research. From the analysis of different regions of the land-use status quo, based on Land Use Change model, the structure of land use change, speed of change, the degree of changes in different aspects of angle a comprehensive analysis of the dynamic changes of the regional land use; qualitative and land use change on the basis of the driving force, the use of fuzzy comprehensive evaluation method for the quantitative analysis of different economic zone land use change driving force. The full text is divided into five parts: The first part, Introduction. Thesis topics of the background, meaning, and domestic and international land-use change research progress and the ideas and methods. The second part introduces the natural environment of Chongqing and its three major economic zones Overview of socio-economic conditions, and current land use, and land use status of three regions a comparative analysis. The third part, from the land use structure, speed and degree of change analysis of three major economic zones of land use change and its regional differences and analysis of the land use change from the perspective of the regional positioning. The fourth part, first a qualitative description of the land-use change driven mechanism, and then use the fuzzy comprehensive evaluation method, three regional land use change driving force for the quantitative analysis of selected socio-economic indicators of the 12 evaluation pointed out that the main driving force of the regional type. The fifth part, conclusion. The main conclusions are as follows: 1. The current land use: the three major economic zones the highest proportion of land use for agriculture, have shown a pattern of agricultural land and agricultural land cultivated land, forest and other agricultural land. Second, a higher proportion of the metropolitan area and Yuxi area of ??construction land, and a higher proportion of the Three Gorges area of ??unused land. 2.1997-2005 the regional land-use change: the strongest metropolitan areas: land use structure change, land use change is the fastest land use degree increased by a big margin. Embodied in: the increase of construction land, mainly to the increase in residential and industrial land; decrease in agricultural land, including farmland and other agricultural reduced, garden and woodland; unused land to reduce, to the reduction of unused land-based; land combination of types in addition to cultivated land, forest, agricultural land increased residential and industrial land, land use structure is more diverse; structural changes in land use types farmland, woodland, residential and industrial land, the speed change. fast garden, transportation land, residential and industrial land. Western Chongqing area: land use structure change, land use change is faster, land use, improved accessibility. Specific performance: increase of construction land, mainly to the increase in residential and industrial land; decrease in agricultural land, arable land and other agricultural land to reduce, increase in parkland and woodland; unused land to reduce, to not take advantage of the reduction in land-based; land combination type farmland, woodland, agricultural land; land use diversity index, evenness index increased dominance index decreased to the balanced development of land use; structural changes in land-use types, farmland, woodland, garden; The rapid change in velocity is the garden, transportation land, woodland. Three Gorges area: moderate changes in land use structure, land use change is the minimum speed, a slight increase in the degree of land use. In particular in: the increase of construction land, water conservancy land increased by about 60%; agricultural land, including farmland and other agricultural reduce, increase in parkland and woodland; unused land to reduce, to the reduction of unused land-based; land use a combination of types of woodland, arable land; land use increased dominance index, land use tends to be more focused; structural changes in the land use type is woodland, arable land, the speed of rapid changes in water conservancy land, garden, transportation land . Functional orientation from the district, the district land use change direction of its basic features match the positioning, but in the process of land-use change, making the construction land, conflicts will arise between the ecological land, the adjustment of agricultural structure and cultivated land protection. 3. Fuzzy comprehensive evaluation method of the three regional land use change in the driving force of quantitative analysis: the metropolitan area to the best economic benefits, ecological security and environmental well-being of the driving force; District WESTERN to food security, the driving force of economic welfare and survival Lord; Three Gorges area to ecological security and environmental well-being and survival economic welfare. 4. Land use data based on a comparative analysis of the three major economic zones in Chongqing land use change from different angles, through land-use change models, and all economic regions the main driving forces of the land-use changes on Fuzzy Comprehensive Evaluation Method . The results show that: the degree of economic development in different regions of land use change showed significant differences, the main driving force of land use change significantly different.

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CLC: > Economic > Economic planning and management > Economic calculation, economic and mathematical methods > Economic and mathematical methods
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