集体林区生态公益林森林经营类型划分方法研究

Classification methods on forestworking group of noncommercial forest in collective forest area

【目的】探索集体林区生态公益林经营类型划分方法,为简化森林经营方案的编制技术和规范管理生态公益林提供参考依据。【方法】以广西武鸣县森林资源规划设计调查结果为数据支持,以调查因子优势树种、林种、起源、立地类型等为集体林区生态公益林经营类型划分的依据,建立小班属性数据库,利用Excel 2003"数据透视表"按各调查因子在经营类型划分中的重要程度及小班个数进行划分和整合。【结果】武鸣县的生态公益林2921个小班划分为人工八角丘斜水土林、飞播马尾松低险水土林、人工速生桉丘缓水土林、天然石山灌木丘险水土林、天然杂木丘急保护区林等18种经营类型,划分结果符合当地的林地生态公益林实际和经营实际。【结论】以小班属性数据库、Excel 2003"数据透视表"对原数据进行分类统计和分析整合、按目标逐层压缩减少类型数量以合理划分经营类型的集体林区生态公益林经营类型划分方法可用于简化森林经营方案的编制技术和规范管理生态公益林。

【Objective】The classification methods of non-commercial forestworking group of collective forest area were studied to provide references for simplifying the compiling of forestworking plan and making the ecological public forest management standard. 【Method】The study was based on the results of forest inventory planning and design of Wuming in Guangxi. The non-commercial forestworking group of the Wuming was classified according to survey factors such as forest origin, dominate forest species, land type, and forest species. Sub-compartment property database was built and analyzed. Mass data were collected and interacted by means of Excel 2003 Pivot Table according to importance and sub-compartment number in the forestworking group classification. 【Result】The 2921 non-commercial sub-compartments in Wuming Town were classified into 18 forestworking group including Artificial aniseed＋hills 16-25°slope ＋Soil and Water Conservation Forest, Aerially Seeded Masson Pine＋low mountain 〉45° slope＋Soil and Water Conservation Forest,Artificial fast growing eucalyptus＋ hills 6-15° slope＋Soil and Water Conservation Forest,natural shrub＋limestone hills 〉45° slope ＋ Soil and Water Conservation Forests and natural miscellaneous shrubs＋ hills 36-45° slope ＋Reserve forest. The results accorded with the local actual situation and non-commercial forest management. 【Conclusion】Classification methods of non-commercial forestworking group of collective forest area were determined. Sub-compartment property database was built, and Excel 2003 Pivot Table was employed to classify statistics in class and analyze integration of mass data. Original data were condensed in levels so as to reduce the sub-compartment number and finally to classify the sub-compartment reasonably. This method could compile the forest working plan and make the ecological public forest management standard.