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GB/T 20533-2026Metadata for ecological scientific data (English PDF)

生态科学数据元数据

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

February 27, 2026

Implementation date

June 1, 2026

Scope

GB/T 20533-2026 is the English-translated version of 生态科学数据元数据.

GB/T 20533-2026 is the Chinese standard "Metadata for ecological scientific data". Its scope clause reads: This document defines a conceptual model for describing ecological science data at the dataset level, and establishes a set of mandatory components that constitute this model.

Required and optional subsets of metadata, metadata entities, and metadata elements; the minimum metadata required for various levels of requirement applications.

The data element set (referred to as core metadata) and the rules for extending metadata and developing metadata-specific standards to meet special needs. It then describes a method for developing dedicated standards for metadata.

This document applies to the cataloging, description, and standardized management of ecological science datasets and dataset series, and also to scientific data centers. Data services. Its clauses include terms and definitions.

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Document preview — GB/T 20533-2026

National Standard of the People's Republic of China

ICS: 35.240
Classification: L 67
Replacing: GB/T 20533-2006

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
Introduction
1.Scope
2 Normative References
3.Terms and Definitions
4.Abbreviations 3.
5.Metadata Description Methods 3.
6.Consistency Requirements
7.Metadata Requirements
7.1 Scope of Metadata Application Objects
7.2 Metadata and Dependencies
7.3 Class Diagram of Metadata Packages
7.4 Metadata Base Package
7.5 Metadata Dependency Package
7.6 Core Metadata of Ecological Science Data
7.7 Rules and methods for developing dedicated standards for metadata
7.9 Metadata Application Example
7.10 Metadata Implementation Methodology
Appendix A (Normative) Data Dictionary
Appendix B (Normative) Metadata Extensions and Dedicated Metadata Standards
Appendix C (Normative) Abstract Test Suite
Appendix D (Normative) Core Metadata
Appendix F (Informative) Metadata Example
Appendix G (Informative) Metadata Implementation
References

1 Scope

This document defines a conceptual model for describing ecological science data at the dataset level, and establishes a set of mandatory components that constitute this model.

Required and optional subsets of metadata, metadata entities, and metadata elements; the minimum metadata required for various levels of requirement applications.

The data element set (referred to as core metadata) and the rules for extending metadata and developing metadata-specific standards to meet special needs.

It then describes a method for developing dedicated standards for metadata.

This document applies to the cataloging, description, and standardized management of ecological science datasets and dataset series, and also to scientific data centers.

Data services.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 4880 (all parts) Language Name Code

GB/T 7408 (all parts) Representation for the Interchange of Date and Time Information

GB/T 7714 Rules for Bibliographic References in Information and Documentation

GB/T 30522-2014 Basic Principles and Methods for Standardization of Metadata for Science and Technology Platforms

GB/T 30523-2023 Core Metadata of Scientific and Technological Resources

GB/T 32843-2016 Science and Technology Resource Identification

GB/T 35294-2017 Information Technology Scientific Data Citation

GB/T 36369-2018 Unique Identifier System for Digital Objects in Information and Documents

GB/T 39908-2021 Code set for the transfer of scientific data generated by science and technology programs

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1

In ecological scientific research activities, raw basic data are obtained through observation, experimentation, surveys, and other methods, as well as data collected according to research needs.

The term refers to all derivative data generated from the processing, analysis, and application of original basic data and other collected data.

3.2 dataset

A recognizable set of data.

Note. By restricting the coverage or attribute type, a dataset can physically become a smaller data group within a larger dataset.

[Source. GB/T 19710.1-2023, 3.3, with modifications]

3.3 Dataset series

A collection of datasets that share common characteristics.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 98 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 4880

Cited by

Editions of GB/T 20533

Edition	Title	Revision	Status
GB/T 20533-2026	Metadata for ecological scientific data	current edition	Current
GB/T 20533-2006	Metadata for ecological scientific data	previous edition	Superseded

This page sells the current edition, GB/T 20533-2026. Earlier editions are listed for reference only.

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