Research On Function Classification Of Biodiversity Of Hunan Province

Biodiversity is very important in China. The species of higher plant and economic crops is rich, which is an important resource of province's economic development. In 2000, province economic value of biodiversity reached $1.91×1012, which is 4.9% of nation economical value of biodiversity $39.33×1012. Thereinto, cleaning up environment value was $1.23×1012, which occupied 64.4% of the whole province economic value of biodiversity. Conservation of water source, organic mater production, annual net value of products and processed products and science & culture value were $205.8×109,$193.58×109,$109.66×109, and$82.6×109, which occupied 10.7%, 10.1%, 5.7%, and 4.3% respectively of economic value of biodiversity in Hunan province. Conservation of water source, organic mater production, annual net value of products and processed products and science & culture value are respectively 3.33, 0.56, 0.52, and 0.3 times of GDP.This paper is based on biodiversity of present situation and overall assessment, economic value of biodiversity function assessment of Hunan province. According to remote sensing superposition image, map of agricultural relief types, map of key protected propagation, map of nature protection area, map of forest division, and clarification map of water resource conserve, and clarification map of soil erosion, etc. of Hunan province, biodiversity function of Hunan province is divided into four regions: very-important region,...