Wood Properties of Japanese Cedar (Cryptomeria japonica) Planted as a Windbreak Forest of Mandarin Orange Field in Jeju Island
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초록
The anatomical characteristics, green moisture content, inorganic element concentration, and black heartwood percentage were compared between the Japanese cedar (Cryptomeria japonica) planted in a general mountain forest and in a windbreak forest for a mandarin orange field in Jeju island. The results obtained were as follows:1. Black heartwood percentage was found to be much higher in the trees of windbreak forest than in those of general mountain forest. 2. Green moisture content of wood appeared to increase with the color change of heartwood from reddish brown to black. 3. Inorganic elements of K2O and CaO in the ray cells of black heartwood were thought to be one of the important factors for black heartwood formation. 4. Wood specific gravity and strength properties were comparatively lower in the trees of Jeju island than in those of southern part of the Korean peninsula. These properties, however, were found to be not significantly different between the trees of windbreak forest and general mountain forest in Jeju island.
Abstract
The anatomical characteristics, green moisture content, inorganic element concentration, and black heartwood percentage were compared between the Japanese cedar (Cryptomeria japonica) planted in a general mountain forest and in a windbreak forest for a mandarin orange field in Jeju island. The results obtained were as follows:1. Black heartwood percentage was found to be much higher in the trees of windbreak forest than in those of general mountain forest. 2. Green moisture content of wood appeared to increase with the color change of heartwood from reddish brown to black. 3. Inorganic elements of K2O and CaO in the ray cells of black heartwood were thought to be one of the important factors for black heartwood formation. 4. Wood specific gravity and strength properties were comparatively lower in the trees of Jeju island than in those of southern part of the Korean peninsula. These properties, however, were found to be not significantly different between the trees of windbreak forest and general mountain forest in Jeju island.
참고문헌 (11)
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