Subcompartment Dividing Method in Forest Management Survey Based on Edge Locking Technique UPDATE MODELS OF FOREST RESOURCE DATA FOR SUBCOMPARTMENTS IN NATURAL FOREST APPLICATION OF NATURAL STAND GROWTH MODELS IN SUBCOMPARTMENT DATA UPDATE Study on Site Decision Support Model Based on COM GIS Study on optimum forest coverage for water conservation: a case study in Pingtonghe watershed (Pingwu section) Construction and Application of Stand Growth Model for Natural Broad-leaved Forests in North Fujian 3-D Tree Model and Its Visualization in Guozigou Forest Farm