摘要
使用市场价值法 ,影子工程法 ,机会成本法和替代花费法等对中国现存自然分布的136 4 6hm2 的红树林生态系统的功能价值进行经济评估 ,评估结果表明 ,中国红树林总的年生态功能价值为 2 36 531万元 ,其中生物量价值 816 3万元 ,抗风消浪护岸价值 992 0 6万元 ,保护土壤价值 1156 92万元 ,固碳以减弱温室效应和释放O2 的价值 6 70 6万元 ,生物多样性保护即动物栖地价值 5470万元 ,林分养分积累价值 10 12万元 ,污染物生物降解和病虫害 2 82万元。
The market valuation method,shadow engineering method opportunity cost method and substitute expense method are used to value the functions of the mangrove ecosystems in China. The ecological economics reveals that the total eco1ogical function value of the nature l3 646 hm 2 mangroves in China is estimated up to about 236 531 million yuan(Chinese RMB)per annum,of which,about 8 163 million yuan is of the output of standing trees and detritus,about 99 206 million yuan of coastal protection,about 115 692 million yuan of soil protection,about 6 706 million yuan of CO 2 fixation and O 2 relaxation,about 5 470 million yuan of biodiversity conservation mainly as animal habitat,about 1 012 milliom yuan of plant nutrient deposit,about 282 million yuan of SO 2 and other pollutants degradation and control of diseases and pests.
出处
《生态科学》
CSCD
2000年第1期40-45,共6页
Ecological Science
关键词
红树林
生态系统
功能价值评估
生态价值
mangrove ecosystem
function evaluation
ecological value
China
