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中国农学通报

中国农学通报 ›› 2025, Vol. 41 ›› Issue (23): 107-110.doi: 10.11924/j.issn.1000-6850.casb2025-0117

• 资源·环境·生态·土壤·气象 • 上一篇    

3种造林方式对土壤有机碳的影响

叶婷婷1(), 刘雪勇1, 徐耀文2, 焦洁洁2, 吴初平2, 李勇1()   

  1. 1 丽水市青田县林业局，浙江丽水 323900
    2 浙江省林业科学研究院，杭州 310023
  • 收稿日期:2025-02-15 修回日期:2025-07-15 出版日期:2025-08-19 发布日期:2025-08-19
  • 通讯作者:
    李勇，男，1991年出生，安徽太和人，中级工程师，研究生，研究方向：森林培育。通信地址：323900 浙江省丽水市青田县校场路60号，Tel：0578-6812071，E-mail：。
  • 作者简介:

    叶婷婷，女，1987年出生，浙江青田人，中级工程师，本科，研究方向：森林培育。通信地址：323900 浙江省丽水市青田县鹤城街道校场路60号，Tel：0578-6515216，E-mail：。

  • 基金资助:
    浙江省省属科研院所扶持专项项目“浙江典型森林和湿地碳汇特征及影响因素研究与应用”(2024F1065-1)

Effects of Three Afforestation Approaches on Soil Organic Carbon

YE Tingting1(), LIU Xueyong1, XU Yaowen2, JIAO Jiejie2, WU Chuping2, LI Yong1()   

  1. 1 Qingtian Forestry Bureau of Zhejiang, Lishui, Zhejiang 323900
    2 Zhejiang Academy of Forestry, Hangzhou 310023
  • Received:2025-02-15 Revised:2025-07-15 Published:2025-08-19 Online:2025-08-19

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摘要：

本研究旨在评价3种造林方式对土壤有机碳的影响，为疏林地的生态恢复和碳汇管理提供科学依据。在浙江省青田县使用单树种、两树种和多树种造林（5个树种）3种方式进行造林，对土壤性质进行调查分析。结果表明：与单树种造林和两树种造林相比，多树种造林显著增加了土壤有机碳的含量；相关性分析表明土壤有机碳含量与土壤总氮和速效氮呈显著正相关。本研究认为，多树种造林通过增加有机碳输入、改善土壤氮素和钾素可利用性以及提高土壤酶活性，显著提高了疏林地的土壤有机碳含量。这一研究结果为疏林地的生态恢复和碳汇管理提供了重要的理论依据，同时也强调了土壤碳氮钾耦合关系和微生物酶活性在土壤碳循环中的重要作用。

关键词: 造林, 土壤, 疏林地, 有机碳, 土壤性质

Abstract:

The study aims to evaluate the effects of three afforestation methods on soil organic carbon (SOC) and provide a scientific basis for ecological restoration and carbon sequestration management in sparse forest lands. In Qingtian County, Zhejiang Province, three afforestation approaches were implemented: single-species, two-species and multi-species (five species) plantations, followed by a comprehensive soil property analysis. The results showed that compared with single-species and two-species afforestation, multi-species afforestation significantly increased SOC content. Correlation analysis demonstrated that SOC levels were significantly associated with soil total nitrogen and available nitrogen. Multi-species afforestation enhanced SOC content in sparse forest lands through three synergistic mechanisms: increasing organic carbon input, improving soil nitrogen and potassium availability, and elevating soil enzyme activity. These findings advance scientific guidance for ecological restoration and carbon sequestration management in sparse forest lands, while underscoring the critical role of soil carbon-nitrogen-potassium coupling dynamics and microbial enzyme activity in soil carbon cycling.

Key words: afforestation, soil, sparse forest lands, organic carbon, soil properties