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NTIS 바로가기한국산림과학회지 = Journal of korean society of forest science, v.111 no.4, 2022년, pp.482 - 489
한승현 (국립산림과학원 산림기술경영연구소) , 양아람 (국립산림과학원 국제산림연구과) , 노남진 (강원대학교 산림과학부) , 조민석 (국립산림과학원 산림기술경영연구소)
본 연구는 식재밀도가 식재 후 7년간 물푸레나무 조림목의 생장 특성에 미치는 영향을 분석하여 적정 식재밀도를 제시하고자 하였다. 2015년 3월, 강원도 평창군에 위치한 조림지(3 ha)에 물푸레나무 2년생 노지묘를 4가지의 식재밀도(3천본, 5천본, 7천본, 10천본 ha-1)로 식재하였다. 조림목의 생존율, 근원경, 수고를 2015년-2021년까지 매년 9월에 측정하였고, H/D율(Height/Diameter ratio)과 수간 재적을 산출하였다. 식재밀도에 따른 물푸레나무 조림목의 생존율은 84-97% 범위로 유의한 차이가 없었으며, H/D율(54.5-59.2%) 또한 뚜렷한 차이를 나타내지 않았다. 그러나 근원경, 수고, 수간 재적은 7천본 ha-1에서 다른 식재밀도 처리에 비해 높게 나타났다. 특히 식재 7년차 수간 재적(cm3 tree-1)은 7천본 ha-1에서 1,356.1로 가장 높았으며, 10천본 ha-1 (958.6), 5천본 ha-1 (773.0), 3천본 ha-1 (579.5) 순이었다. 물푸레나무는 식재밀도가 높아질수록 수광 경쟁에 의해 빠른 초기 생장을 보였으나, 임계 식재밀도(10천본 ha-1)에서는 생장이 상대적으로 낮아지는 것을 확인하였다. 향후 조림비용이 고려된 적정 식재밀도 적용시 물푸레나무 조림지에서의 우수한 조림 성과를 기대할 수 있을 것으로 보인다.
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