Abstract
In order to realize county-level land use database remittance, establish the provincial land use database and realize annual change statistics, this paper analyzed the requirements for establishing the provincial land use database remittance standards. It proposed the principle of establish the standard compile, introduced the standard establishment process, described the standard main content, and demonstrated technical reasons for standard topologic relationship, expression method for land use data time dimension, data file naming rule, land use element classification, land use database digital dictionary file composition, land use spatial objects, etc. It provides reference for the standard establishment of provincial land use database remittance.
Highlights
At present, China is building county-level land use database
The database construction for the national level should adopt software recommended by Ministry of Land and Resources
Fully understand the multiplicity of county land use database that involved the software and hardware platforms, that is, the smallest set can not be used as standard
Summary
China is building county-level land use database. The database construction for the national level should adopt software recommended by Ministry of Land and Resources. There are several database construction scales, 1:2000, 1:5000, 1:10000, etc. As database building uses various platforms and various scales, provincial land use database needs to be established to achieve county-level land use database remittance, build provincial land use database and realize annual change statistics. This database should be flexible to change in different software. The standard provincial land use database should set uniform data use feature classification code, layer division, data file naming rule, unified spatial data, attribute data and data dictionary structure, unified conversion format and metadata formats, etc [1]
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