森林资源时空数据异步更新和回溯算法的研究

发布时间：2018-02-27 07:30

本文关键词： 森林资源数据更新时空数据历史回溯 GIS　出处：《北京林业大学》2014年硕士论文　论文类型：学位论文

【摘要】：森林资源的小班数据是森林资源信息管理的基础,及时准确地对森林资源数据进行更新能够保证森林资源数据的正确性,对森林资源的历史数据进行回溯能够了解森林资源的动态变化过程和变化规律,可为森林资源决策部门提供决策支持。本文对国内外森林资源数据更新和回溯方法的历史和发展现状进行了综述,对森林资源数据更新和回溯中涉及的理论、技术与方法进行了归纳和总结；分析了小班变化的各种原因,归纳了森林资源空间数据变化的各种形式,梳理了森林资源数据异步更新和回溯的流程；研究提出了森林资源时空数据的异步更新方法与回溯算法。该更新方法与回溯算法通过森林资源数据库中新设计的小班数据表、小班经营活动表和小班经营活动历史表,完成数据异步更新和回溯。在森林资源管理信息系统平台上对异步更新和回溯子系统的功能结构和数据库中的表结构等进行了详细设计。利用ArcGIS Engine组件,基于ArcSDE空间数据引擎,采用本研究提出的更新与回溯算法,开发了森林资源数据异步更新和回溯功能模块,实现了小班的点选异步更新、ID号异步更新、整体异步更新功能,时空数据的点选回溯、ID号回溯、正向追踪、反向追踪和整体回溯功能,在森林资源管理信息系统平台上构建森林资源的异步更新和回溯子系统,为森林资源的管理和决策服务。
[Abstract]:Small-scale forest resource data is the basis of forest resource information management. Timely and accurate updating of forest resource data can ensure the correctness of forest resource data. The historical data of forest resources can be traced back to understand the dynamic change process and law of forest resources, and can provide decision support for forest resources decision making departments. In this paper, the history and development status of forest resource data updating and backtracking methods at home and abroad are summarized, and the theories, techniques and methods involved in forest resource data updating and backtracking are summarized. This paper analyzes the reasons for the change of small classes, sums up the various forms of spatial data changes of forest resources, and combs the process of asynchronous updating and backtracking of forest resource data. This paper presents an asynchronous updating method and a backtracking algorithm for spatiotemporal data of forest resources, which is based on the newly designed small class data table, small class management activity table and small class management history table in forest resource database. Complete data asynchronous update and backtracking. The function structure of asynchronous update and backtracking subsystem and the table structure in database are designed in detail on the platform of forest resource management information system. Using ArcGIS Engine component, based on ArcSDE spatial data engine, The function module of asynchronous updating and backtracking of forest resource data is developed by using the updating and backtracking algorithm proposed in this paper. In order to serve the management and decision-making of forest resources, the backtracking ID number, forward tracking, reverse tracing and overall backtracking functions of spatio-temporal data are selected. The asynchronous updating and backtracking subsystem of forest resources is constructed on the platform of forest resource management information system.
【学位授予单位】：北京林业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：S757.2

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