Earticle

초록

영어

Timber harvesting causes substantial changes in forest soil microenvironmental conditions, yet the long-term effects on soil greenhouse gas (GHG) fluxes remain poorly understood, particularly in Korean mixed forests. This study investigated the effects of timber harvesting on soil temperature, moisture, CO2 efflux, and CH4 uptake over a three-year monitoring period at the Kangwon National University Experimental Forest. A total of 19 harvested plots and 14 non-harvested control plots were established on the same slope. Soil GHG fluxes were measured monthly using a static closed chamber method, and linear mixed-effects models (LMMs) were applied to evaluate treatment effects over time. Harvesting significantly elevated soil temperature and moisture at the harvested site relative to the reference site throughout the monitoring period, though the effect on soil temperature was inconsistent, whereas elevated moisture persisted across all three years. Normalized soil CO2 efflux was consistently higher at the harvested site than at the reference site, with annual relative differences of approximately 60%, 49%, and 35% in 2023, 2024, and 2025, respectively. Conversely, soil CH4 uptake was suppressed at the harvested site compared with the reference site, with relative suppression declining from 17% in 2023 to 9% in 2025. Soil CO2 efflux was primarily regulated by soil temperature, whereas CH4 uptake showed stronger dependence on soil moisture. The diminishing magnitude of treatment differences over time implies an ongoing recovery of soil microenvironmental conditions at the harvested site. These findings demonstrate that timber harvesting reorganizes soil temperature and moisture regimes in ways that generate divergent and persistent responses in CO2 efflux and CH4 uptake, underscoring the importance of long-term monitoring for evaluating post-harvest soil carbon dynamics.

목차

Abstract
Introduction
Materials and Methods
Site description
Field measurements
Soil CO2 flux normalization
Data analysis
Results
Seasonal variation in soil temperature and moisture following timber harvesting
Seasonal variation in soil greenhouse gas flux following timber harvesting
Relationships between environmental variables and soil greenhouse gas fluxes
Discussion
Conclusion
Acknowledgements
References

키워드

저자

• Jaewon Seo [ Department of Forestry and Environmental Systems, Kangwon National University, Chuncheon 24341, Republic of Korea ]
• Ikhyun Kim [ Division of Forest Ecology, National Institute of Forest Science, Seoul 02455, Republic of Korea ]
• Byoungkoo Choi [ Department of Forest Environment Protection, Kangwon National University, Chuncheon 24341, Republic of Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  Journal of Forest and Environmental Science [산림과학연구]

• 간기

  계간

• pISSN

  2288-9744

• eISSN

  2288-9752

• 수록기간

  1981~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 526 DDC 634