地理论文（Geography paper）.doc

地理论文（Geography paper） Land cover / land use classification (LC/LU) is a new concept for land classification which appears with the development of remote sensing technology. The natural attributes of the land cover is focused on the land, is a natural reflection of complex elements of surface covered body and artificial building of remote sensing image classification of all surface coverage (including used and unused) classification; social property and land use are focused on the land, according to the nature of human the characteristics of the land, in accordance with certain economic and social objectives, take a series of biological, technical means, long-term or periodic on land management and governance reform activities. Land use is a land of natural ecosystems into artificial ecosystem process is a complex process, factors of nature, economy and society, the way and degree of the structure, and regional distribution and land use efficiency, not only affected by natural conditions, but by a variety of social, economic and technical conditions. And the social mode of production often play a decisive role in [1 ~ 2]. Land use and land cover change is the most direct and the main driving factor. The LC/LU survey has become to carry out land use forecasting and prevention of natural disasters and land management and environmental protection and other key foundation work, pay attention to. With the further development of the analysis model of remote sensing technology and to study the use of remote sensing technology on regional land cover and the dynamic changes were monitored regularly or irregularly, quickly become one of the most reliable and effective measure. Investigation in the development of remote sensing LC/LU, often combine the two into account, establish unified classification system, called remote sensing classification system LC/LU. According to the characteristics of LC/LU in Hongkong area, multi platform remote sensing data (including TM, SPOT HRV,