Evaluation for Ecosystem Services Value of Farmland Shelterbelt in He'nan Province
Evaluation of the farmland shelterbelt ecosystem service is of vital importance due to its practical application in regional economical development and ecological environment protection. In this case, farmland service function value of He' nan Province from 2001 to 2005 was evaluated by applying methods including market price, opportunity cost, and shadow price. Results showed that the total ecological service function value of the farmland in 2001 and 2005 were 1.04 X 10^10and 1.46 X 10^10 yuan, respectively. The ecological service function index values followed such a decreasing order, soil protection)crops yield incrementbiodversity protectionCO2 fixation and O2 release〉air purification. The increment of total ecological service was 1.53X10^9 yuan each year. The service of soil conservation increment value was the largest(9.94X 10^8 yuan), followed by soil protection(3.01 X 10^8 yuan), crops yield increment(1.25 X 10^8 yuan), biodiversity protection(7.00)K 107 yuan), CO2 fixation and 02 release(3.77X 10^7 yuan), and air purification(7.79X 10^5 yuan). Due to the fact that the ecological service function value of the shelterbelt is tremendous, it is suggested that ecological service market compensation mechanisms and perfected ecological service function valuated should be established as early as possible, so as to extend the farmland from an ecological style to an ecological and economical style.
farmland shelterbelteco-servicevaluationHe'nan Province
国家科技期刊平台
NSTL
万方数据
维普
