CAJ | 학술논문

对16个落羽杉种源的14年生人工林木材化学性质进行了测定,结果表明:(1)16个落羽杉种源木材纤维素相对结晶度、综纤维素含量、木素含量、NaOH抽出物含量和pH等均存在显著差异;(2)16个落羽杉种源木材纤维素相对结晶度在74.43%～61.52%,总平均值为65.87%,总变异系数为5.27%,树干不同高度处木材纤维素相对结晶度含量存在极显著差异.16个种源木材综纤维素含量、木素含量、NaOH抽出物含量和pH等的变异范围分别为62.64%～71.53%、23.98%～29.53%、3.9%～17.9%和5.32%～5.07%,总变异系数分别为3.9%、6.7%、44.8%、1.53%,NaOH抽出物含量变异系数较高.落羽杉树干不同高度处木材综纤维素含量、木素含量、NaOH抽出物含量和pH差异未达显著水平;(3)16个落羽杉种源整体上综纤维素含量高,NaOH抽出物含量和木素含量低,经过进一步筛选后,部分种源可作为优良的纸浆林造林材料进行推广.
대16개락우삼충원적14년생인공림목재화학성질진행료측정,결과표명:(1)16개락우삼충원목재섬유소상대결정도、종섬유소함량、목소함량、NaOH추출물함량화pH등균존재현저차이;(2)16개락우삼충원목재섬유소상대결정도재74.43%～61.52%,총평균치위65.87%,총변이계수위5.27%,수간불동고도처목재섬유소상대결정도함량존재겁현저차이.16개충원목재종섬유소함량、목소함량、NaOH추출물함량화pH등적변이범위분별위62.64%～71.53%、23.98%～29.53%、3.9%～17.9%화5.32%～5.07%,총변이계수분별위3.9%、6.7%、44.8%、1.53%,NaOH추출물함량변이계수교고.락우삼수간불동고도처목재종섬유소함량、목소함량、NaOH추출물함량화pH차이미체현저수평;(3)16개락우삼충원정체상종섬유소함량고,NaOH추출물함량화목소함량저,경과진일보사선후,부분충원가작위우량적지장림조림재료진행추엄.
The chemical properties of wood of 16 bald cypress ( Taxodium distichum (L. ) Rich.) provenances of 14 years old were determined, and the results were as follows; (1)There were significant difference in wood cellulose crystallinity, holocellulose content, lignin content, NaOH extractives content and pH of wood of 16 bald cypress provenances. (2)The wood cellulose crystallinity of wood of 16 bald cypress provenances was 74.43%-61. 52% , and average was 65. 87% , and total variation coefficient was 5.27% , and there also existed significant variation in wood cellulose crystallinity of different height of trunk. The variation ranges of holocellulose content, lignin content, NaOH extractives content and pH were 62.64%- 71.53% , 23.98%-29.53% , 3.9%-17. 9% and 5. 32%-5.07% respectively, and variation coefficients were 3.9% , 6.7% , 44.8% and 1.53% respectively, but there wasn't significant variation in holocellulose content, lignin content, NaOH extractives content and pH of different height of trunk. (3) On the whole, the holocellulose content of wood of 16 baldcypress provenances was higher, but lignin content and NaOH extractives content were lower, and some provenances could be used as forestation material of pulp wood timber after farther choosing.