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马尾松天然林更新机制与保护措施探讨

马尾松天然林更新机制与保护措施探讨

摘    要
  马尾松天然林作为我国南方重要的森林资源,在维持生态平衡、提供木材资源等方面发挥着不可替代的作用,然而其更新面临诸多问题。为此,本研究旨在探讨马尾松天然林的更新机制并提出保护措施。通过野外调查获取不同立地条件下的马尾松天然林植被、土壤等数据,结合室内实验分析种子特性、幼苗生长状况等,同时运用文献研究法总结前人研究成果。结果表明,马尾松天然林更新受多种因素影响,如光照、水分、土壤养分及人为干扰等,其中适度干扰有利于更新,过强或过弱均不利;种子传播方式和萌发特性也是关键因素。基于此提出保护措施:建立自然保护区减少人为破坏,实施近自然经营促进林下植被发育,开展人工辅助更新提高幼苗成活率。本研究创新性地从多因素综合角度揭示了马尾松天然林更新机制,为该类森林资源的可持续发展提供了理论依据和技术支持。

关键词:马尾松天然林更新; 多因素影响; 保护措施; 种子特性; 幼苗生长

Abstract
  The natural forests of Masson pine (Pinus massoniana) play an irreplaceable role in maintaining ecological balance and providing timber resources in southern China. However, the regeneration of these forests faces numerous challenges. This study aims to investigate the regeneration mechanisms of Masson pine natural forests and propose conservation measures. Field surveys were conducted to collect data on vegetation and soil under different site conditions, while laboratory experiments analyzed seed characteristics and seedling growth status. Additionally, a literature review was employed to summarize previous research findings. The results indicate that the regeneration of Masson pine natural forests is influenced by multiple factors including light, water, soil nutrients, and human disturbance, with moderate disturbance being beneficial for regeneration, whereas excessive or insufficient disturbance is detrimental. Seed dispersal methods and germination characteristics are also critical factors. Based on these findings, conservation measures are proposed: establishing nature reserves to reduce human destruction, implementing near-natural forest management to promote understory vegetation development, and conducting artificial assisted regeneration to improve seedling survival rates. This study innovatively reveals the regeneration mechanisms of Masson pine natural forests from a comprehensive multi-factor perspective, providing theoretical basis and technical support for the sustainable development of such forest resources.

Key words:Natural Regeneration Of Masson Pine Forest; Multiple Factors Influence; Conservation Measures; Seed Characteristics; Seedling Growth
目  录
中文摘要 I
英文摘要 II
引    言 4
第1章、马尾松天然林更新的生态基础 5
1.1、马尾松生长环境特征 5
1.2、更新过程中的种内竞争 5
1.3、生态系统服务功能 6
第2章、更新机制的关键影响因素 7
2.1、土壤养分与水分条件 7
2.2、植物群落结构变化 7
2.3、人为干扰的影响程度 8
第3章、天然林保护的技术措施 9
3.1、保护区规划与管理 9
3.2、科学抚育技术应用 9
3.3、生物多样性维护策略 10
第4章、可持续发展的政策建议 11
4.1、政策法规体系建设 11
4.2、社区参与保护模式 11
4.3、长效监测评估机制 12
结    论 13
参考文献 14

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