优化的Packed R-树空间索引在森林资源管理中的应用

本文首先对R-树系列中典型的几种优化R-树索引结构进行分析，指出他们各自的优缺点以及适应的空间数据及其操作类型，然后进行森林资源管理系统中空间数据管理功能模块的需求分析，指出该模块在实际应用中，具有待处理的空间数据量稳定、更加关注查询效率、插入与删除操作不频繁等特点，最后对前面的两部分内容进行综合的对比分析，指出优化后的Packed R-树更能满足本文伊春公安局森林案件勘察管理系统空间数据管理功能模块的需求。

Application of the Optimized Packed R-tree Spatial Index in Forest Resource Management

Some typical structure of optimized R-tree spatial index was analyzed, whose advantages and disadvantages as well as the corresponding spatial data and the operation type was pointed out then. Moreover, requirement analysis on the management function module of spatial data in forest resource management system was conducted. It was indicated that in practical application, it had the characteristics of stable amount of spatial data to be treated, more attention on query efficiency, and infrequent insert and delete operation, etc. Finally, the two parts of content above were compared and analyzed comprehensively, indicating that the R-tree spatial index after optimization can better meet the requirements of management function module of spatial data in this paper.