玉溪市森林生态系统服务功能价值评估

对玉溪市森林生态系统服务功能价值进行估算,结果全市森林生态系统服务功能总价值为348.35亿元,其中,调节功能价值为294.15亿元/a,占森林服务功能总价值的84.44%;以生物多样性为代表反映的支持功能价值为46.33亿元/a,占总价值的13.30%;以森林游憩反映的文化功能价值为0.26亿元/a,占0.07%;提供直接产品价值7.61亿元/a,占2.19%.评估结果表明,玉溪市森林生态系统服务功能价值巨大,但林业产值不高,森林的生态服务功能价值为其直接利用价值的44.73倍.在产品提供价值中,直接采伐利用的价值占产品提供价值的20.06%,仅占整个森林服务功能价值的0.44%.直接采伐利用森林的木材资源仅仅是森林为人类所提供的各种服务功能价值中比重很小的部分.

Assessment on Services Value of Forest Ecosystem in Yuxi

The services value of forest ecosystem in Yuxi was estimated.The results showed that,the total service value of the forest ecosystem of the whole city was about 34.835 billion RMB.Of which the regulating value was 29.415 billion RMB / a,accounted for 84.44% of the total value of forest services.The supporting functions represented by biodiversity had a value of 4.633 billion RMB / a,accounted for 13.30%of the total value.The cultural features reflected in forest recreation had a value of 26 million RMB / a,accounted for 0.07%.The forest ecosystem provided direct products value of 761 million RMB / a,accounted for 2.19%.The assessment concluded that,the services value of the forest ecosystem in Yuxi was enormous,but forestry output value was not high.The services value of the forest ecosystem was 44.73 times of its direct using value.In the products value,direct harvesting using value accounted for only 20.06% of the products value,and only 0.44% of the total forest services value.The timber resources from direct harvesting using accounted for only a very small proportion of the services value provided by forest for human.