Research On Remote Sensing Dynamic Monitoring Of Land Utilization

Land use is regarded as the most outstanding view sign of the surface layer system of the earth, then its change is an important studied field in global change in recent years. The remote sensing technique is the important mean to carry on the dynamic monitoring of land utilization change, to discover regions that the land utilization changes. How to carry out the remote sensing dynamic monitoring of land utilization, this article's work as follow.This article take the Huicheng District as the research area, carries out the remote sensing dynamic monitoring research of land utilization uses the QuickBird remote sensing phantom and the IKONOS orthogonal projection.This investigation was designed to develop a monitoring system, which can fit in with Huizhou city. By dynamic monitoring technique, we compared several image processing methods,such as technical route, data processing, information extraction, database construction, cartography and stat, etc., formed an operable technical route for remote sensing monitoring, which will obtain the change data of land use in Huicheng district of Huizhou city.In this paper, the image data processing was processed in erdas8.6/envi4.0 and the change data extraction was processed in PIC8.2. The investigation analyzed several methods in the process of dynamic monitoring of land use such as geometric rectification, image fusion and enhancement, change data finding and extraction, dynamic system Establishment and so on. At last,the driver factors brought land use change in Huicheng district of Huizhou city was analyzed by statistics and conclusion.The result of research indicates that, during 2002 and 2005, the Huicheng District in Huizhou city land utilization change's predominant type for the waters and the water conservancy facilities land, the industry and mining warehousing land, the housing land, the transportation land and other lands, displays for the other land obvious reduction, the industry and mining warehousing land, the housing land and transportation land massive increase. Further analysis indicated that the research area land utilization is in the fast period of expansion from 2002 to 2005. But the main driving influence to cause the land utilization change lies in the Pearl River Delta area economical belt to shift, leads the Huizhou economic society rapid development, simultaneously promotes urban population sharp growth.