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气候变化对中国森林碳汇评估的影响研究进展

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森林是陆地碳汇的主体,通过森林固碳是减缓大气二氧化碳(CO2)浓度上升和全球变暖的最经济可行的手段之一.通过对当前我国森林碳储量和碳汇评估研究的分析,阐述了未来气候变化背景下碳汇评估中面临的挑战和亟须解决的问题.气候变化通过改变森林的演替过程、林分结构、林龄动态、土地适宜性等影响树木的生物量碳和土壤有机碳累积.当前的森林碳汇评估分析未能综合全面考虑这些因素,且对森林碳汇的评估多集中在生物量碳库的估算,而土壤固碳潜力的评估较少.目前碳汇预测亟须全面综合考虑气候变化对森林碳库的影响,同时也应重视森林生物量碳库和土壤碳库协同增汇的长期效应.因此,未来不仅要加强固碳增汇机制研究,更要改进和提升已有方法,为准确预测和提升我国森林碳汇提供支持.
Impacts of Climate Change on Forest Carbon Sink Assessment in China
Forests are the primary terrestrial carbon sinks,and carbon sequestration through forests is one of the most cost-effective and viable ways of mitigating the rise in atmospheric CO2 concentrations and global warming.We analyzed current research on the assessment of forest carbon stocks and carbon sinks in China,highlighting the challenges and urgent issues that need to be addressed in the future assessment of carbon sinks in the context of climate change.Climate change affects forest biomass carbon and soil organic carbon by altering forest succession,stand structure,age dynamics,and land suitability.Current assessments fail to comprehensively account for these factors,and primarily focus on estimating biomass carbon pools,with limited evaluation of soil carbon sequestration potential.There is an urgent need for a comprehensive consideration of climate change's overall impact on forest carbon sinks,as well as the long-term effects of synergistic enhancements in forest biomass and soil carbon pools.Consequently,future research should prioritize understanding carbon sequestration mechanisms and enhancing existing methodologies to support accurate predictions and improvements of China's forest carbon sinks.

forestscarbon storagecarbon sinksuccessionage of standland suitabilitycarbon sequestration potential

余振、吴高阳、董艳丽、刘世荣

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南京信息工程大学生态与应用气象学院,南京 210044

中国林业科学研究院森林生态环境与自然保护研究所,北京 100091

森林 碳储量 碳汇 演替 林龄 土地适宜性 固碳潜力

2024

陆地生态系统与保护学报

陆地生态系统与保护学报

ISSN:
年,卷(期):2024.4(4)