珠江三角洲公益林生态效益的价值分析

Evaluation for the values of eco-forests in the Pearl River Delta

对珠江三角洲生态公益林的木材生产、薪柴生产、防洪、产生径流、保持水土、保肥效益、释放O2、吸收CO2等效益进行价值估算。结果表明:2010年珠江三角洲生态公益林的总价值为657 949万元.a-1,各方面的价值依大小顺序为:产生径流价值147 692万元.a-1,占22%,生产木材价值130 977万元.a-1,占20%、保肥效益127 167万元.a-1,占19%,防洪效益72 223万元.a-1,占11%、释放O2效益66 133万元.a-1,占10%、吸收CO2效益56 969万元.a-1,占9%,保持水土效益44 315万元.a-1,占7%,薪柴价值12 474万元.a-1,占2%。

The evaluation on the values of ecological forests,including timber production,firewood production,controlling flood,producing surface runoff,water and soil conservation,fertility conservation,releasing O2 and absorbing CO2,was made in the Pearl River Delta.The total value of eco-forests was up to 6579.49 millions RMB per year in the Pearl River Delta in 2010.The values of every aspects ordered from large to small were： producing surface runoff,timber production,fertility conservation,controlling flood,releasing O2,absorbing CO2 and firewood production,with values of 1476.92,1309.77,1271.67,722.23,661.33,569.69,443.15 and 124.74 millions RMB per year,respectively,which occupied 22 %,20%,19%,11%,10%,9%,7% and 2% of the total value of ecological forests,respectively.