摘要
对五年生巨桉林在不同密度和不同立地条件下的生长情况进行了研究。结果表明:巨桉林分生长最好的是洪雅试验区密度为1665株/hm2的林分;在不同的密度试验中,密度越大,林分蓄积量越高;在试验密度范围内,密度越大,树高和胸径越小;林分生长与林地土壤中全N、全K以及有机质等养分的含量显著相关。
The investigation was performed in the pulpwood plantation of Eucalyptus grandis with different density and different site condition in Sichuan Province. The results show that the plantation with the density of 1665 trees/hm2 in Hongya trial is the best. And it indicates that stock of stands goes up with the increase of stand density in the same site condition under a given density range. It also shows that the growth of plantation is greatly affected by the content of soil nutrients specially total N, total K and soil organic matter.
出处
《四川农业大学学报》
CSCD
2003年第2期109-112,共4页
Journal of Sichuan Agricultural University
基金
四川省"九五"林业科技攻关课题"桉树短周期纸浆工业原料林经营技术体系研究"的部分内容。
关键词
纸浆林
巨桉
立地条件
生长效果
密度
pulpwood plantation
Eucalyptus grandis
site condition
growth effect
density
