Study On Land-use Change Of Huaidao Township 1996～2008, Ningwu County

This article take the land investigation's land utilization present situation chart as well as the land investigation compiled the materials on Huaidao Township of the Ningwu County in 1996, in 2008 as a data pool. Utilizing MAPGIS6.7 as a platform to build Database of land use change on Huaidao Township, utilizes the GIS technology, the mathematical statistic method, carries on the quantitative analysis to the Huaidao Township 's land utilization, the dynamic change and analysis the driving factors of land use change. The main findings are as follows:1 Land use structure change obviously. Among them, there are three types of land use reduces. Farmland, other land, water and water facilities to reduce the largest area of land. The remaining types of land use increased. Increase in land use descending order:Urban village and industrial land> land of transport>woodland> lawn> farmland> water and water facilities> other land. Degree of land use change dynamics in decreasing order:Urban village and industrial land> land of transport> woodland> lawn> farmland> water and water facilities> other land.2 Land use degree flat to down. From 186 down to 184, The extent of land use change was -0.167. Moreover, the higher the level of land use classification, the greater the rate of change. Level of unused land (unused) increased by 0.13%, the natural recycling level (woodland, grassland, water) increased 5.76%, re-use man-made level (land) 11.29% reduction, non-renewable use of class (residential and industrial land, transportation land) increased 52.82%.3 Farmland, woodland, grassland are the main land use types. And three types of land use conversion are among the most important forms of land use change. Urban village and industrial land increased from relatively diverse; traffic sites to increase the main source of water and water facilities for the land. 4 Various land-use changes in the regional differences in both high and low. Among them, the farmland, woodland, grassland and other land use changes in land use smaller regional differences, while the urban villages and industrial land, traffic land area land use change quite different.5 Economic factors, policy factors is the dominant factor of land use change. Grain for Green Project has led to a large number arable land to woodland, grassland conversion. Economic factors, the main influence on the performance of this area as coal, iron ore mining will change the existing land use for urban villages and mining sites or other sites. In the interaction of economic and policy factors under a lot of water and water conservancy facilities, land, forest land converted to traffic.6 Sustainable land use response. Strict protection of farmland, the establishment of a comprehensive land-regulatory mechanism; increased intensification of land use; revenue and cutting expenditure simultaneously, increase the effective land use area.