土地利用调查数据库年度更新典型问题探讨

Discussion on Typical Problems of Annual Update of Land Use Survey Database

为准确掌握每年土地利用实际变化情况,保持土地调查数据的现势性,充分发挥土地管理参与国民经济的宏观调控作用,需对调查数据库进行更新。文章对数据库更新过程中的一系列典型问题进行探讨,在充分考虑数据库标准的基础上,对某些存在逻辑一致性、完整性、属性正确性的数据质量问题提出了详细的解决方案,这样既保证更新数据的合理性也保证下一年度土地利用数据库的准确性。

In order to accurately grasp the actual changes in land use every year,to maintain the current situation of land survey data,to give full play to the role of land management in the macro-control of the national economy,the survey database needed to be updated.Therefore,a series of typical problems in the process of database updating were dis-cussed.Based on the full consideration of the database standards,a detailed solution was presented for the data of some quality problems with logical consistency,integrity and attribute correctness.This ensured the rationality of the updated data and the accuracy of the land use database in the next year.