Error Analysis and Rectification in Spatial Data of Forest Resource by Designing Survey Web Services Organizing and Presentation of the Digital Forestry Support Platform Application of Workflow Technology in Digital Forestry Grid Construction and Application of Spatial Processing Service in Digital Forestry Grid Research of Unified Authentication System on Digital Forestry Platform Resource Registry Meta-Service in Digital Forestry Grid Research on the Architecture and the Implemen ta tionof the Prov inc ia l D ig ita l Forestry Core Pla tform Research and Implementation on Digital Forestry Platform Development of Forest Resources Management System Based on the Digital Forestry Platform Digital Forestry Support Platform Developed by Application of Grid Technique and Formulation of Its Web Service Standard Design of Information System for Forest Resource Management on County Level