Application Of GIS To Study On Forest Multi-function Evaluation In Jingouling Forest Farm

Forest multi-function evaluation can achieve rational allocation of forest resources, to meet the social needs of the diversity of forest functions, and promote sustainable forest management. At present, however, the methods used in the evaluation of forest multi-function are mainly qualitative and less used GIS to construct quantitative index system are not inefficient. How to use GIS tools to build evaluation system of forest multi-functional has become a serious problem.Taking the Jingouling Forest Farm of WangQing forestry bureau in Jilin Province as an example, according to the social requirement and features of forest resources, using ArcGIS platform and forest resource survey data.This article use the method of comprehensive factor evaluation and establish a set of forest multi-function evaluation indicator system suiting the Jingouling forest farm.Evaluate the Multi-function of Nature Reserve, Seed production, Road protective, Soil and Water Conservation and Timber forest and manufacture the farm's forest function regionalization map.Combined with evaluation results, the study is divided into seven kinds of management types and management measures which is conducive to the mulit-function management of forest resources.The results show that:The Nature Reserve forest area is 10902 hm2, accounting for 66.94% of total area; Seed production area is 846.2 hm2, accounting for 5.19% of total area; Road protective forest area is 286.6 hm2, accounting for 1.76% of total area; Soil and water conservation area is 125 hm2, accounting for 0.77% of total area; Timber forest area is 4126.2 hm2, accounting for 25.34% of total area. Evaluation results are consistent with the forest management goals, while also meets the distribution features that Nature Reserve forest, Timber forest and Seed production are pieces, Soil and water conservation forest is Point and Road protective forest is linear.Comparing with traditional method, use the powerful function of spatial analysis and attribute database management of ArcGIS, this method is more convenient and accurate, reducing man-made error.