Earticle

초록

영어

Previous studies surmised that under-canopy dead branches in unmanaged/abandoned coniferous plantations could reduce throughfall kinetic energy (TKE); however, the effect of under-canopy dead branch pruning on TKE has not been clarified. We established two plots under the same stand density (2500 stems ha⁻¹) in abandoned Japanese cypress plantations: (1) one with dead branch pruning (plot 1, P1) and (2) the other with no dead branch pruning (plot 2, P2). Throughfall (TF) and TKE were measured on the weekly basis during the growing season using manual-type TF rain gauges and sand-filled splash cups, respectively. Results showed that other than dead branch structures, no other stand structures significantly differed between P1 and P2 (p < 0.05). Both stand-scale TF ratio (72.8% vs. 63.5%) and unit TKE (21.4 J m⁻² mm⁻¹ vs. 13.5 J m⁻² mm⁻¹) were higher in P1 than in P2. This implies that dead branches under the canopy had considerable impacts on raindrop fall velocity after passing through upper canopies in unmanaged/abandoned Japanese cypress plantations. Our findings clarified that under-canopy dead branches can mitigate soil erosion risk in such plantations and can provide new insights into forest management for soil conservation.

키워드

저자

• Hyewan Jun [ Department of Forest Resources, Gyeongsang National University, 501, Jinju-daero, Jinju, 52828, South Korea ]
• Seonghun Jeong [ Department of Forest Environmental Resources, Gyeongsang National University/Institute of Agriculture and Life Science, Gyeongsang National University, 501, Jinju-daero, Jinju, 52828, South Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국산림공학회 학술대회

• 간기

  연간

• 수록기간

  2023~2025

• 십진분류

  KDC 526 DDC 634