A Comparison Study On Landuse Changes And Their Environment Influence In China Bamboo Producing Area Along An East-West Gradient

This sub-project is one part of the project of "Bamboo Management Options in Different Socio-economic Conditions and Their Environmental Implications: A Case-comparison along an East-West Gradient in China"(2001-2005). Along with China bamboo industy developed rapidly, and the fast decrease of forest area and the valuable timber resources, and bamboo stands expansion, especially in western China, the bamboo managment options and bamboo utilization have being paid attention popularly, and this trend to influence both farmer's bamboo-based earning activities and local economy, but is bring environmental costs derived from the replacement of natural forests, the heavy use of chemical inputs and the reduced biodiversity value of intensive bamboo plantations. Chinese bamboo researchers have been studying the technologies of intensive silviculture and utilization of bamboo resource in unsystematically, and the results are still not meet the demands of sustainable development of bamboo stands due to the past limits of science knowledge and research conditions. This project derives from the need to understand the impacts on landuse and land-cover change (LUCC) related to environmental aspects of bamboo producing area. It is important for China to combine the environmental and developmental objectives for the sustainable management and effective utilization of bamboo resource in the southern region of China.Landuse and land-cover change has become the core region of land sciences, earth systematic sciences, global environm ental change and sustainable development. At present, research progress on impact of land use and land-cover change on ecoenvironment, including atmosphere, water condition, soil surroundings and biodiversity, have been gained, but most of research concentrated on the small scale level. The research on the large scale level have not been reported. This paper aims on the large scale level, for example, on the county level, to used the method which combined remote sensing technology and GIS, and fixed observation, to comprehensive analysis to local environment (including water and soil erosion,...