摘要
土壤碳库在增加碳封存和调节气候变化方面发挥巨大作用。土壤无机碳(soil inorganic carbon,SIC)作为土壤碳库的重要组成部分,在全球变化下其固碳潜力和调控机制尚未被充分认识。基于此,通过梳理国内外研究进展,明确了全球变化背景下SIC在碳封存方面的重要作用,综述了SIC的来源、形成和稳定的过程与机制,并总结了环境因素和全球变化因子对SIC的影响。未来研究要将土壤有机碳(soil organic carbon,SOC)和SIC的变化都考虑到土壤碳封存潜力的评估中,专门开展全球变化特定因子对SIC影响的实验,揭示微生物在SIC积累中的作用,开发更精确的SIC估算方法和模型,旨在全球变化背景下准确评估SIC的变化和固碳潜力。
Soil carbon plays a vital role in enhancing carbon sequestration and mitigating climate change.Soil inorganic carbon(SIC),as a key component of the soil carbon,its carbon sequestration potential and regulatory mechanism have not been fully understood under global change.Therefore,by briefly arranging the domestic and abroad research progresses,this paper clarifies the important role of SIC on carbon sequestration under the background of global change,reviewed the sources,formation and stability processes and mechanisms of SIC,and summarized the influence of SIC by environmental factors and the effect of global change.Aiming to accurately assess changes in SIC and carbon sequestration potential under the background of global change,future research should consider both changes in soil organic carbon(SOC)and SIC in the assessment of soil carbon sequestration potential,specifically conduct experiments on the impact of specific factors of global change on SIC,reveal the role of microorganisms in SIC accumulation,and develop more accurate SIC estimation methods and models.
作者
赵丹
贾御夫
郭景恒
王国安
时忠杰
Zhao Dan;Jia Yufu;Guo Jingheng;Wang Guoan;Shi Zhongjie(Institute of Desertification Studies/Institute of Ecological Conservation and Restoration,Chinese Academy of Forestry,Beijing 100091,China;College of Resources and Environmental Science,China Agricultural University,Beijing 100193,China)
出处
《陆地生态系统与保护学报》
2025年第4期64-74,共11页
Terrestrial Ecosystem and Conservation
基金
中国林业科学研究院基本科研业务费专项资助(CAFYBB2024MA046)
国家自然科学基金国际(地区)合作与交流项目(41971061)。
关键词
土壤无机碳
研究进展
土壤有机碳
土壤微生物
全球变化
soil inorganic carbon
research progress
soil organic carbon
microorganism
global change
