摘要
对不同地区营造的人工望天树林的生长情况进行了分析,探讨了营造的望天树人工林的林分密度与林分生长及立地条件之间的关系,提出了营造人工望天树林较佳的规格和方式.结果表明:造林规格以2.5m×2.5m、3.5m×1.5m、3.5m×2.5m、3.0m×2.0m较佳;人工营造的望天树林的个体不论是高度生长还是胸径生长都要远远大于天然林中的望天树个体;立地条件是影响望天树人工林生长量的因子;在其分布区域进行望天树的迁地保护,扩大其种群数量及生存的区域和范围,是保护这一珍稀树种的有效途径.
In this paper, the growth of Parashorea chinensis plantation in different regions was analyzed, the relationship among the stand growth, its density and its stand site condition was discussed, and some afforesting standards and manners were suggested. The results show that the suitable planting specification of Parashorea chinensis plantation in the regions is respectively 2.5 m ×22.5 m, 3.5 m × 1.5 m, 3.5 m × 2.5 m, and 3.0m × 2.0m; that the individuals of the plantation are far superior to those in natural forests ; and that its site condition is one of the factors effecting its increment. The effective way to protect Parashorea chinensis is to take measures for its ex-situ conservation and to enlarge its population quantity and its survival region and range.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2008年第4期83-86,共4页
Journal of Central South University of Forestry & Technology
基金
国家自然科学基金(3980024
30370247)
云南省自然科学基金(2002C0068M)
中国科学院知识创新工程项目资助
关键词
林学
望天树
人工林
林分密度
林分生长
立地条件
forestry
Parashorea chinensis
man-made forest
plantation
stand density
stand growth
stand site condition
