GB 12340-1990
Replaced
T/CREVA 3101-2023
Active
Group standards
T/CREVA 3101-2023 Wetland subdivision technical specifications
T/CREVA 3101-2023 Wetland subdivision technical specifications
Price:
$ 20.00
Basic Information
Standard Code:
T/CREVA 3101-2023
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Integrated
ICS Name:
Astronomy, geodesy, and geography
Publish Date:
2023-12-15
Implement Date:
2023-12-15
Scope
Scope: This document specifies the terms and definitions, basic principles, and technical approaches for wetland classification. This document is applicable to the classification of existing wetlands. Main technical content: The main technical content includes establishing a comprehensive evaluation factor and indicator system that is classified by zones and multi-dimensional, continuous, and defining the technical methods, technical processes, and key points for wetland classification, as well as the compilation and mapping of classification results.
Development Information
Related Standards
GB 12341-1990
Replaced
GB 12341-1990 1:25000, 1:50000 and 1:100000 topographic maps—Specifications for aerophotogrammetric field work
GB/T 13605-1992
Abolished
GB/T 13605-1992 Coordinatograph
GB/T 13977-1992
Replaced
GB/T 13977-1992 Specifications for aerophotogrammetric field work 1:5000, 1:10000 topographic maps
GB/T 13989-1992
Replaced
GB/T 13989-1992 Subdivision and numbering for the national primary scale topographic maps
GB/T 13990-1992
Replaced