森林资源可持续性评价系统的研究

Study of Evaluation System on Sustainability of Forest Resource

森林资源可持续性评价是森林资源管理决策的重要依据。随着"数字林业"项目的发展,全国各地建立起了数据丰富的森林资源信息管理系统。如何从现有的森林资源信息数据库中进行自动化的评价计算还没有相关的研究和产品。在对其系统进行研究时,首先总结了森林资源可持续性评价方法,然后描述了森林资源信息数据库的一般模式,最终实现一个直接从森林资源信息数据库中获取量化指标而进行可持续性评价的系统。该系统利用ARC/INFO的ODE技术以及由VB开发环境直接从森林资源信息库的图形数据和属性数据中获取量化指标,进行用户可控的评价计算,最后由系统对计算结果进行相应的分析,并且提供丰富的图形分析结果。

Evaluation of sustainability of forest resources is an importance basis for the strategy making of forest resource management. With the development of digital forestry, some forest resource information management systems with abundant data were built, there were no relevant studies and products with which the evaluation and calculation within the forest resource information database could be accomplished automatically. The methods for the evaluation of sustainability of forest resources were reviewed and summarized, the general model for forest resource information database was described, a system with which the quantitative indexes could be obtained from forest resource information database was accomplished. Within this system, the ODE technique of ARC/INFO was used, under the development environment of VB, the quantitative indexes were obtained from graphic data and attribute data in forest resource information database, the evaluation and calculation which could be controlled by users were made. After conducting corresponding analysis on the calculation results with the aid of the system, abundant graphic analysis results could be produced.