Analysis Of Land Use Changes And Its Performance Based On RS&GIS

Zaoyang is a typical small and medium-sized inland city, which has many pivotal elements of development, such as concentrated population, rich resources, the rapid development of the industry and environment, and so on. Its economic and social development and progress is based on the land productivity as the main support. At present, it is the rapid development period of industrialization and urbanization. The scientific, rational and efficient use of land resources, is directly related to it hosted the economic, environmental and social sustainable and healthy development. Therefore, to carry out the land performance evaluation timely, has an important significance, which is conducive to promote the rational utilization of land resource in study area, to alleviate the contradiction between the orderly, healthy development of local economy and society between the expansions of land demand, to form a virtuous benign circular formation.In this paper, based on the relevant theory, technology and methods of current land use (performance) evaluation, to further enrich the land use of the content and methods of performance evaluation. The interpretation of land use performance is a comprehensive reflection, which contains the use of results, the use of effective, the use of efficient and the interactivity of among them, is be produced when the land resource is used in a certain conditions such as structural configuration, degree of utilization, the use of methods, etc. The essence of this evaluation is a comprehensive measure, during the process of land use, which reflects the rationality of land resources allocation structure, the sufficiency of land use degree, the optimality of land use efficiency, the universality of land use effectiveness, and the interactive influence, reflected on the land use and the sustainable development of economy and society.In the instance of the analysis, based on the interpretations of three Landsat ETM+remote sensing images of local district, image acquisition time, respectively, for2001,2005and2010, the land use the datum of three years are accessed. And, according to the datum, two sets of land use change matrix are established, are used to analyze the land use changes and trends in study area. On these basis, to construct the performance evaluation index system, which based on the structure of land use, land use degree, land use efficiency and land use efficiency. The system is used to evaluate and analyze the land use performance of study area and the coordination degree of the performance evaluation system.The results show that:in the study area, the overall situation of land use structure is at a stable status; the land use degree is between extensive and intensive, is in a rising state, but the rising trend is gentle; the land use performance and the coordination degree of the performance evaluation system are also in a rising status. Finally, according to these analyzes and conclusions, problems of the land use, during the development process, are explored accurately, and then, the measures and means are discussed for the improvement of the level of land use performance.