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The Optimal Harvest Scheme for Pine Trees When Carbon Value Is Considered

탄소가치를 고려한 소나무림의 최적관리 방안

  • Received : 2013.02.20
  • Accepted : 2013.03.07
  • Published : 2013.03.31

Abstract

Since trees sequestrate carbon and reduce the level of its concentrations in the atmosphere, forests should be considered as carbon pools as well as timber producers. This study focuses on finding optimal harvest age when carbon sequestration from trees is accounted by forest managers. A dynamic programming employs a static volume matrix, and solves the harvest decision problems. If carbon value is accounted in a tree harvest decision model, the optimal harvest age increases. The harvest age of pine trees set by the government for national forests is longer than the optimal solution. It is possible to say that the managers of national forests put more values on the standing pine trees than the value of carbon sequestration. The regulation for private forests, on the other hand, ends up in a shorter harvest age than the optimal solution, and this discrepancy could lead to an inefficient private forest management.

나무는 대기 중의 탄소를 흡수하기 때문에 산림은 목재의 생산지로서만 아니라 탄소저장고로 고려되어야한다. 이 연구는 산림의 탄소흡수 역할을 고려한 최적 벌채연령을 찾는 데 중점을 두고 있다. 관리방법별 연령별 재적자료를 이용하였으며, 문제해결을 위해 다이나믹프로그래밍을 적용하였다. 그 결과 벌채연령은 탄소의 가치를 고려하지 않은 경우보다 늘어나는 것으로 분석되었다. 그러나 정부가 규정하는 국유림 소나무에 대한 벌채연령보다는 짧은 것으로 나타났다. 따라서 국유림 소나무에 대한 정부의 관리에는 탄소흡수에 대한 가치뿐만 아니라 다른 공익적 가치가 포함되어 있다고 판단할 수 있다. 반면 사유림에 대한 규정은 적정 벌채연령보다 짧은 것으로 나타났으며, 이로 인해 사유림경영에 비효율성을 초래할 수 있다.

Keywords

References

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