【摘要】 通过对森林资源的时空特征以及变化类型的分析,提出面向小班对象的多基态修正扩展时空数据模型和小班时空一体化存储结构,为森林资源数据更新和管理提供有效的方法和技术支持。在此基础上,以数据更新和历史数据回溯实例研究了小班时空数据的操作和应用。模型已利用吉林汪清林业局1997至2002年某林场数据验证。更多还原

【Abstract】 By analyzing spatial-temporality and updating featurs of forest resource,the paper introduced a new spatio-temporal data model of unified management and designed the data structure that accorded with the requirement for forest resource spatio-temporal data updating and management for sub-compartment.It realized the historical query and trace of sub-compartment data.The data patterns hed been validated by the real forest data of a whole Linchang in Wangqing Forest Bureau between 1997 and 2002.更多还原