Study On Land Use Change And Drving Forces Anylysis Based On GIS

Study on dynamic land use changes and driving forces is a front and hotpoint problem to land resources management, mainly researched the type variety regulation of land use, natural driving forces and the influence and function of human activities to change land ecosystem. It is the important content of contemporary international geoscience, especially in the research realm of the Earth surface layer system. There is a very important function to strengthen the research of land resource change on the aspects of amount and quality to guarantee the sustainable development of regional economy and make the human existence environment condition to be safety.The research analysis of area or region, could in detail explain the relationship between the land use/cover change with the environmental variation, and could more scientifically determine space and time resolution that changes needed. Therefore, in order to study the land use/cover change all over the world, we should carry out partial or regional example research.With GIS technique, this thesis has constructed the land use database of Dongning county, including the nine-year land use projects between 1993 and 2001. Taking these data as the core data, combining with physical, social and economical data, regarding the sustainable regional development as the goal, the analysis of current land use situation, the amount variety of the land use change, degree change of land use, the land use diversity and the spatial distribution of land use change in Dongning county have been carried out. With the Markov model, the forecast of land use situation in the future several years has been implemented. According to this foundation, the driving forces of land use change in Dongning county has been deeply researched with the principal components analysis method,.The article has been distributed to four parts as follows:The first part is the background of the research and the elementary theory. This part has mainly introduced the basic concept of land use changes, the development condition and the domestic and international related research and practice. In the meantime, the contents researched, method of the research and the technique route, the related theories and model, and the introduction to the software applied to has been carried out finally in this thesis.The second part is the land use data process with geographic information technology. First the collected data has been disposed, and established the land use Project of Dongning county, including nine-year land use projects between 1993 and 2001. On the basis of this foundation, according to the...