
Mechanisms and methods for augmenting carbon sink in forestry
ZOU Xiaoming, WANG Guobing, GE Zhiwei, XIE Youchao, RUAN Honghua, WU Xiaoqiao, YANG Yan
JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2022, Vol. 46 ›› Issue (6) : 167-176.
Mechanisms and methods for augmenting carbon sink in forestry
Rising atmospheric CO2 concentration is recognized as the major driver for global climate warming. Thus, reducing atmospheric CO2 is also recognized as the main remediation method for climate change. Forestry practices play an essential role in atmospheric CO2 sequestration and global environmental engineering. Forestry carbon sequestration includes forest carbon sequestration and forest product carbon sequestration. Carbon sequestration in forests relies mainly on processes of ecosystem carbon balancing and forest product production, including photosynthesis and ecosystem net primary productivity, stabilization of soil organic carbon, and wood use efficiency and product lifespan. Forestry carbon sequestration can be achieved through (1) expanding forest areas with afforestation practices guided by the “matching trees with site or calcium” principle; (2) increasing forest net productivity with integrated forest management of water, nutrients, and pest or fire control; (3) enhancing the stabilization of soil organic carbon content by clay minerals; (4) promoting the use and improving the lifespan of forest products. At the global scale, an additional 1 Pg (C) of carbon can be sequestrated each year for 30 years by increasing forest area or net productivity by 3.4%, or by converting fuel wood to sawn wood or wood-based panels. Furthermore, reducing carbon loss from forest fire by a quarter or elevating soil organic carbon by 0.23% can also decrease carbon emissions by 1 Pg (C) each year. Carbon sequestration in forestry has great potential for reducing atmospheric carbon dioxide and mediating global climate warming.
carbon sink in forestry / carbon sink in forest / carbon sink in wood products / forest productivity / global climate change / soil organic carbon
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于母校华诞120年喜庆之际,特向老师先辈们深表敬意。笔者汇总了一部分成熟和潜在碳汇途径,希望起抛砖引玉的作用,激励林业工作者在增加林业碳汇的伟大事业中做出重要贡献!
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