气候变化研究进展 ›› 2023, Vol. 19 ›› Issue (3): 371-380.doi: 10.12006/j.issn.1673-1719.2022.255

• 温室气体排放 • 上一篇    下一篇

中国草地生态管理的土壤碳汇模拟研究——基于IPCC清单方法

胡国铮1,2, 干珠扎布1,3, 李铭杰1,2, 余沛东1,2, 高清竹1,3()   

  1. 1 中国农业科学院农业环境与可持续发展研究所,北京 100081
    2 国家农业环境数据中心,北京 100081
    3 中国农业科学院农业农村碳达峰碳中和研究中心,北京 100081
  • 收稿日期:2022-11-08 修回日期:2023-01-05 出版日期:2023-05-30 发布日期:2023-04-28
  • 通讯作者: 高清竹,男,研究员,gaoqingzhu@caas.cn
  • 作者简介:胡国铮,男,副研究员
  • 基金资助:
    第二次青藏高原综合考察研究(2019QZKK0307);国家自然科学基金项目(31800383);中国农业科学院基本科研业务费专项(Y2022LM16)

Study on the simulation of soil carbon sink in grassland ecological management in China — based on IPCC inventory method

HU Guo-Zheng1,2, HASBAGAN Ganjurjav1,3, LI Ming-Jie1,2, YU Pei-Dong1,2, GAO Qing-Zhu1,3()   

  1. 1 Institute of Environment and Sustainable Development for Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
    2 National Data Center of Agricultural Environment, Beijing 100081, China
    3 Research Center of Emission Peak and Carbon Neutralization in Agriculture and Rural Affairs, Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2022-11-08 Revised:2023-01-05 Online:2023-05-30 Published:2023-04-28

摘要:

草地是中国重要的生态系统碳库,中国为治理草地退化和荒漠化实施了多项草地生态保护建设项目。为了探讨生态系统管理对碳汇的影响,文中基于中国草地生态管理活动水平,设定4个草地生态管理的未来情景,采用IPCC国家温室气体清单指南方法,估算和模拟了中国2001—2030年草地土壤碳汇。结果表明:2001—2010年中国草地土壤碳汇平均为-0.54亿t CO2 eq/a,2011—2017年显著提升为平均-1.00亿t CO2 eq/a;未来不同草地生态管理情景下中国草地土壤碳汇在-0.42亿t CO2 eq/a~-2.00亿t CO2 eq/a,2018—2030年草地土壤累积碳汇量为-5.46亿~-26.01亿t CO2 eq。本研究为中国未来草地生态管理政策的制定提供参考。

关键词: 草地生态管理, 土壤碳汇, IPCC清单方法, 模拟

Abstract:

Grassland is an important ecosystem carbon pool in China. Several grassland ecological protection projects have been implemented to control grassland degradation and desertification in China. To reveal the impact of ecological management on ecosystem carbon sequestration, four future scenarios of grassland ecological management were set based on the current intensity of grassland ecological managements. Grassland soil carbon sequestration was estimated in China from 2001 to 2030 by using the IPCC Method for National Greenhouse Gas Inventories. The results showed that the mean grassland carbon sequestration was -0.54×108 t CO2 eq/a from 2001 to 2010 in China. The grassland soil carbon sequestration significantly increased to -1.00×108 t CO2 eq/a on average during 2011-2017. Under different grassland ecological management scenarios, the grassland soil carbon sequestration is -0.42×108 to -2.00×108 t CO2 eq/a in China. And grassland soil will sequestrate -5.46×108 to -26.01×108 t CO2 eq accumulatively from 2018 to 2030. This study provides reference for the formulation of future grassland ecological management policies.

Key words: Grassland ecological management, Soil carbon sequestration, IPCC inventory, Simulation

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