A Version-based Historical Data Management and Backing of Land Use Adjustment Geodatabase

摘要

The storage and retrieval of historical data is all along the very important research branch in intelligence spatio-temporal database.Espatially in land use/cover database,with the increase of changes in land use,a validity method used in historical data management looks particularly important.The article is based on the requirements for historical data back in land use planning and management system of Tianjin.After analyzing and summarizing some methods in common use,the paper brings forward a method for historical data back which is based on version for Intelligence land use spatio-temporal database.And the practical application in land use planning and management system of Tianjin actually shows that method can not reduce data redundancy but also ensure high implementation efficiency,which could be used to help doing comparison,analysis and summary of history and current situation.This approach can serve the management and decision-making of land use.And it has practical significance of land planning optimization.