摘要
为了加速恢复和发展珍贵树种楸树(Catalpa bungei C.A.Mey.),在河南省薄山林场营造33.3hm^2楸树试验林,以探讨低山丘陵区楸树幼林生长与立地条件的关系,为楸树立地类型的划分及宜林地的选择提供科学依据。
On the low mountain and hilly region in South Henan, qualitative and quantitative analysis on eleven factors which affect the growth of 2~4 years-old young stand of Catalpa bungti C. A. Mey have been conducted. The results show that the correlation between the growth of the young stand and the site condition is extremely significant. The factors affecting the tree height are arranged in following order: topography>soil depth>soil permeability>slope exposure>soil fertility>soil texture>slope locality>parent rock>slope>sunshine condition>gravel content. The factors affecting the D.B.H. are arranged in following order: topography>soil depth>soil fertility>sunshine condition>slope exposure>soil permeability>slope locality >soil texture>parent rock>gravel content>slope. Among these factors, topography and soil depth are the most significant factors to the growth. We obtain the multivariate line regression equations for the tree height and D. B. H. to the eleven site factors and the major factors, and work out the forecasting table for the young stand growth.
出处
《林业科学研究》
CSCD
北大核心
1992年第6期712-716,共5页
Forest Research
基金
"七五"国家科技重点攻关项目
关键词
楸树
生长
立地条件
丘陵区
Catalpa bungei growth of the young stand site condition
