Evaluation Of Forest Ecosystem Service Functions In Liaoning Xianrendong Nature Reserve

Forest ecosystem services are the conditions and processes through which natural ecosystems, and the species that make them up, sustain and fulfill human life. As a nature resource plays important ecosystem service functions in people′s survival and daily life. Therefore , there are many researches on the evaluation of forest ecosystem services function around the world. In the last decade, there is also much research work concerning the forest ecosystem services function in our country.The meaning of the evaluation of the forest ecosystem services function in Liaoning Xianrendong nature reserve was discussed on the base of reviewing the concept, the researching progress, and the evaluation methods of ecological services function in this paper. Combined with the characteristics of the forest ecosystem services function in nature reserve, a frame of forest ecosystem services function in nature reserve evaluating index system is established. The values of production of organic substance, water conservation, soil conservation, air purification, carbon fixation and oxygen release, biodiversity conservation and forest recreation of the forest ecosystem in Xianrendong nature reserve were assessed with the methods of environment economics such as market value, shadow project and opportunity cost etc.The result shows that the average key public forest ecosystem services values of Forest Ecosystem Service Functions in Liaoning Xianrendong nature reserve adds up to 9.0298×107yuan, which consist of 1.519×106yuan of production of organic substance; 4.0799×107yuan of water storage,6.855×106 yuan of soil conservation ; 3.903×106yuan of air purification; 3.578×106yuan of carbon fixation and oxygen release; 2.8044×107yuan of biodiversity conservation and 5.6×106 yuan of forest recreation. The indirect values are11.7 times than the direct values. The results illustrate that the forest ecosystem services function in Liaoning Xianrendong nature reserve possess huge ecological and economic benifits, and occupy important position in keeping sustainable development of environment and economy.The order of total value on rangeland ecosystem services in Liaoning Xianrendong nature reserve are: water storage> biodiversity conservation> soil conservation> forest recreation> air purification> carbon fixation and oxygen release> production of organic substance. This kind of indirect value of economy is far larger than that of direct economy. Therefore the significant value of forest is realized in this kind of indirect use value provided by the ecological processes and ecological function of forest ecosystems. It is these kinds of ecosystem services that support the life processes or contribute to the self-maintenance of mankind by soil conservation,air purification,water storage,biodiversity conservation and carbon fixation and oxygen release. Therefore, the manager of the forest ecosystem services function in Liaoning Xianrendong nature reserve shall scientifically regulate relationship between productive development and ecology conservation, making it possible to sustainable development for regional economy.