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GB/T 46105-2025General guidelines for carbon sink accounting in terrestrial ecosystems (English PDF)

陆地生态系统碳汇核算指南

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 29, 2025

Implementation date

December 1, 2025

Scope

GB/T 46105-2025 is the English-translated version of 陆地生态系统碳汇核算指南.

GB/T 46105-2025 is the Chinese national standard covering counting the carbon a landscape absorbs — the pools of biomass, deadwood, litter and soil, the boundary and the baseline, the measurement and the models, the uncertainty, and the permanence question that any sink accounting has to answer. First edition, under the National Forestry and Grassland Administration. In force from 1 December 2025. Issued on 29 August 2025, it has been in force since 1 December 2025.

Document preview — GB/T 46105-2025

National Standard of the People's Republic of China

ICS
65.020.01
Classification
B 60

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

Contents

  • PrefaceIII
  • 1 Scope1
  • 2 Normative references1
  • 3 Terms and Definitions1
  • 4 Accounting Principles3
  • 4.1 Integrity3
  • 4.2 Consistency3
  • 4.3 Transparency3
  • 5 Calculation Method3
  • 5.1 Calculation Step3
  • 5.2 Determine accounting boundaries3
  • 5.3 Data Preparation4
  • 5.4 Calculation method4
  • 5.5 Uncertainty Analysis6
  • 6 Data Quality Management6
  • 7 Contents of accounting report6
  • References7

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document is proposed and coordinated by the State Forestry and Grassland Administration.

This document was drafted by: Institute of Forest Ecology, Environment and Nature Conservation, Chinese Academy of Forestry, State Forestry and Grassland Administration, China Green Carbon Sink Foundation, The Nature Conservancy (USA) Beijing Representative Office, Beijing Forestry University, China Longjiang Forest Industry Group Co., Ltd., Research Institute of Forestry, Chinese Academy of Forestry, Research Institute of Wood Industry, Chinese Academy of Forestry, Forestry Science and Technology, Chinese Academy of Forestry Information Research Institute, Zhejiang Forestry Carbon Sink Management Center, Zhejiang Forestry Survey, Planning and Design Institute, China Power Construction Group Northwest Survey, Design and Research Institute Co., Ltd., Yunnan Academy of Forestry and Grassland Sciences, Northwest Survey and Planning Institute of the State Forestry and Grassland Administration, Beijing Zhongchuang Carbon Investment Technology Co., Ltd.

Co., Ltd., Hubei Academy of Forestry Sciences, Huazhong Agricultural University, Daxinganling Forestry Group Company, Yichun Forest Industry Huidesheng Ecological Technology Co., Ltd.

Beijing Tiandetai Technology Co., Ltd., China Three Gorges Corporation, Datong Beichuan River Source District National Nature Reserve Management Management Bureau, Guangxi Nanning Forestry Survey and Design Institute Co., Ltd., and Zhejiang Forestry Research Institute.

The main drafters of this document are: Xiao Wenfa, Guo Qingjun, Liu Jiashun, Zhang Guobin, Gou Mengmeng, Zhu Jianhua, Zeng Lixiong, Zhang Xiaoquan, Wu Shuhong, Sun Liang, Jian Zunji, Huang Songlin, Bai Yanfeng, Xu Jinmei, Wu Shuirong, He Youjun, Cheng Ailin, Shen Aihua, Wang Zeng, Liu Gang, Pan Jiangling, Li Qi, Feng Yuan, Tian Yu, Li Chenyu, Tian Huiling, Guo Xueyuan, Li Zichao, Niu Jinyan, Chen Beiling, Zhou Mingzhu, Zhao Hu, Pan Lei, Wang Xiaorong, Cui Hongxia, Fu Tian, Wang Pengcheng, Teng Mingjun, Zhao Yinglei, Liu Jiming, Sun Shusuo, Sun You, Li Chong, Hu Meixiang, Li Fuhua, Qiu Shiping, Liu Jianmin, and Yao Liangjin.

Guidelines for Accounting for Carbon Sinks in Terrestrial Ecosystems

1 Scope

This document provides guidance on terrestrial ecosystem carbon sink accounting, and provides guidance on accounting methods, data quality management, and accounting report content. suggestion.

This document applies to carbon sink accounting in forests, farmlands, grasslands, wetlands, deserts and other terrestrial ecosystems.

2 Normative references

GB/T 21010-2017

GB/T 42340-2023

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 terrestrial ecosystem

A functional whole formed by terrestrial organisms and their environment through the flow of energy, material and information.

[Source. GB/T 42340-2023, 3.1, modified]

3.2 land uselanduse

The process by which humans utilize the properties of land to meet their needs through certain activities.

[Source. GB/T 21010-2017, 2.3, with modifications]

3.3 Greenhouse gas

The natural and human-induced atmospheric ions that absorb and emit radiation from the Earth's surface, atmosphere, and clouds.

The gaseous component of radiation with wavelengths in the infrared spectrum.

[Source. GB/T 33760-2017, 3.1]

3.4 [Source. GB/T 33760-2017, 3.7]

The amount of carbon dioxide that is equivalent in radiative forcing to a greenhouse gas by mass.

Note. Carbon dioxide equivalent is equal to the mass of a given gas multiplied by its global warming potential.

3.5 carbon sink

The process, activity or mechanism by which greenhouse gases, aerosols or greenhouse gas precursors are removed from the atmosphere over a specified period of time.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Editions of GB/T 46105

EditionTitleRevisionStatus
GB/T 46105-2025Guidelines for carbon sink accounting in terrestrial ecosystemscurrent editionCurrent

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