Assessment on Forest Ecosystem Services Function Value of Natural Forest Protection Project in Jingbian County of Shaanxi Province

According to the LY/T 1721-2008 specifications for assessment of forest ecosystem services function, this paper combined with the characteristics of natural forest protection project in Jingbian County, and built the evaluation index system of forest ecosystem service function of natural forest protection project in Jingbian County; and then used the relevant data of natural forest protection project in Jingbian County, forest inventory data, present outcome of ecological monitoring, to evaluated the value of the forest ecosystem services function of natural forest protection project in Jingbian County during 1998-2015.The results showed that by the end of 2015, the total annual value of ecosystem services of natural forest protection project in Jingbian County, Shaanxi Province reached 58 billion 516 million yuan and increased year by year. In different ecosystem services, the 2 functions of the value of solid soil and fertilize and maintaining the value of biological diversity were the largest, which showed that natural forest protection project in Jingbian County played an important role in the conservation of soil and diversity.