<正>对湖南省常德市周家店镇实验林场5种种植密度10年生湿地松的主要化学组分含量进行了统计分析,并对最佳种植密度进行了综合评定。结果表明:(1)种植密度间综纤维素含量变化范围为73.78%～75.56%;1%NaOH抽出物含量变化范围为22.64%～23.84%;种植密度对两者影响均不显著;(2)种植密度间苯醇抽出物含量变化范围为1.54%～2.14%;种植密度对苯醇抽出物含量影响显著;但两两种植密度间的差异程度有很大不同;(3)用于纸浆材最佳的种植密度是1.5m×1.5m。

Samples investigated were collected from five plots with different planting density of 10 years old slash pine growing in an experiment’s forest farm of Zhoujia town of Changde city in Hunan province,main chemical composition of the wood has been statistically analyzed,meanwhile a comprehensive judgement on planting density was made.The results showed that the content of holocellulose among planting density vary from 73.78% to 75.56% and the extract of 1% NaOH vary from 22.64% to 23.84%.The alocholbenzene extractives content was between 1.54% and 2.14%.The results also revealed that planting density has no obvious influence on the contents of holocellulose and the extract of 1% NaOH,whereas having a significant effect on the alcoholbenzene extractives content,but the effect level has a obvious difference between planting density.To pulpwood,1.5 m×1.5 m planting density is the best form.