摘要
针对目前森林资源数据同步更新和更新后时空数据有效回溯的问题,通过改进传统的小班数据表和小班经营活动表,增加小班经营活动历史表,采用十字链表存储变化小班之间的关系,研究给出了森林资源空间数据和属性数据的异步更新和回溯算法,实现了小班数据的异步更新和动态回溯。
As to forest resources＇ problems of synchronous updating and spatio-temporal data backtracking efficiently after updating,traditionary sub-compartment data table and sub-compartment management activity table＇s structure are improved,subcompartment management activity history table is added and relational data among changed sub-compartment are stored in cross list,asynchronous updating and backtracking algorithm of forest resources＇ spatial and attributive data are completed,based on the algorithm the function of sub-compartment＇s asynchronous updating and backtracking is completed by programming.
出处
《地理与地理信息科学》
CSCD
北大核心
2014年第3期37-41,共5页
Geography and Geo-Information Science
基金
国家高技术研究发展计划(863计划)课题(2012AA102003)
关键词
时空数据
异步更新
数据回溯
十字链表
spatio-temporal data
asynchronous updating
data backtracking
cross list
作者简介
杨思吉（1987-）,男,硕士,主要研究方向为林业信息管理与信息技术.
吴保国通讯作者E-mail：wubg@bjfu.edu.cn
