广西林业科学2024，Vol.53Issue(1) ：116-123.DOI:10.19692/j.issn.1006-1126.20240117

碳中和背景下南方大径材林培育问题与对策分析

Analysis on Problems and Countermeasures in Cultivation of Large-size Timber Forests in Southern China under Background of Carbon Neutrality

贺梓晴 余庆宙 胡雪花 赵倩
广西林业科学2024，Vol.53Issue(1) ：116-123.DOI:10.19692/j.issn.1006-1126.20240117
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碳中和背景下南方大径材林培育问题与对策分析

Analysis on Problems and Countermeasures in Cultivation of Large-size Timber Forests in Southern China under Background of Carbon Neutrality

贺梓晴 1余庆宙 1胡雪花 1赵倩1
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作者信息

  • 1. 华南农业大学 林学与风景园林学院,广东广州 510642
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摘要

人工林是森林的重要组成部分,其在陆地生态系统增汇方面发挥重要作用.随着国家对森林资源保护的加强,培育大径材林成为实现我国碳中和战略目标和缓解木材供需矛盾的重要发力点.我国南方人工林面积大,但以中、幼龄林为主,如何提升林地生产力,发挥其增汇功能是关键.该文关注大径材林的固碳功能;针对目前我国南方大径材林培育面临的大径材林资源和成材机理不清晰、大径材林培育目标不明确、大径材定向培育技术体系不完善及人工林地力衰退严重和林分结构单一等问题,提出开展现存大径材林资源调查,科学规划林地和立地选择,开展珍贵乡土阔叶树种良种选育,开展精准施肥调控和调整林分结构等大径材林高效培育和固碳能力协同提升经营对策,可为科学制定森林生态系统管理方案提供依据.

Abstract

Plantations are important parts of forests and play important roles in increasing carbon sinks in ter-restrial ecosystem.With strengthening of nation to forest resource protection,cultivating large-size timber for-ests has become important force to achieve strategic goal of carbon neutrality and alleviate contradiction be-tween wood supply and demand.Plantations had large areas,but mainly consisted of middle-aged and young-aged forests in southern China.How to enhance productivity of forest land and increase carbon sinks is key problem.This thesis focused on carbon sequestration function of large-size timber forests.There were problems faced by cultivation of large-size timber forests in southern China,such as unclear resources of large-size tim-ber forests and timber-forming mechanisms,unclear cultivation objectives of large-size timber forests,imper-fect directional cultivation technological system of large-size timbers,severe soil degradations and single stand structures of plantations.Management countermeasures for synergistic enhancement to efficient cultivation of large-size timber forests and carbon sequestration capacity were proposed,including existing investigation of large-size timber forest resources,scientific planning of forest lands and site selections,breeding of superior va-rieties in precious native broad-leaved tree species,precise fertilization regulation and adjustment of stand structures,which could provide basis for scientific formulation of forest ecosystem management plans.

关键词

森林培育/大径材/人工林经营/森林碳汇/固碳量

Key words

forest cultivation/large-size timber/plantation management/forest carbon sink/carbon sequestration

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基金项目

广东省林业科技创新项目(2022KJCX015)

国家自然科学基金项目(32201530)

出版年

2024
广西林业科学
广西壮族自治区林业科学研究院

广西林业科学

CSTPCD
影响因子：0.59
ISSN：1006-1126
参考文献量84
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