Study of land use multi-level change model and its transaction processing mechanism(土地利用现状管理信息系统中土地利用多级变更模型的建立及其事务处理机制设计)
土地利用变更模型及其事务处理机制是土地利用现状管理信息系统的核心.传统变更模型所支持的变更操作粒度较为单一、事务完整性差、时空语义表现过于单薄.在分析了土地利用变更特点和存在问题的基础上,提出了 一种土地利用多级变更模型LU-MCM(land use multi-level change model),模型以土地利用变迁过程为变更对象,并进一步将之划分为多级变更逻辑单元进行组合描述,而所需解决的长事务处理机制则通过扩展的多粒度树状事务模型实现.土地利用现状管理信息系统的设计和实现证明,该模型对土地利用变迁过程表达效果较好,为土地利用变更数据管理提供了思路....
Main Authors: | XIEJiong(谢炯), LIURen-yi(刘仁义), LIUNan(刘南) |
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Format: | Article |
Language: | zho |
Published: |
Zhejiang University Press
2007-07-01
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Series: | Zhejiang Daxue xuebao. Lixue ban |
Subjects: | |
Online Access: | https://doi.org/zjup/1008-9497.2007.34.4.469-475 |
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