摘要
根据延边地区的25块赤松人工林标准地资料,以其平均优势木的解析材料确定20年生优势木树高。按单项立地因子实际分布区间进行3组以上的分组,然后进行方差分析,计算差异显著性,再进行多重比较,分析各因子的变化规律。通过上述研究,明确了赤松人工林生长与立地因子的关系,初步确定了赤松人工林适宜的立地条件为:阳坡、半阳坡,中下坡位,坡度10°以上的缓斜坡,有效土层厚度30cm以上。
Based on the data of 25 standard sites of Pinus densiflora plantations of Yanbian area, the dominant height of twenty year old plantations was determined according to the analytic material of the average dominant trees.The actual distribution area of single site factor was divided into more than three groups for variance analysis, the changing regularity of each factor was analyzed. The result manifested the relationship between the growth of Pinus densiflora plantation and site factors. The suitable site factors for Pinus densiflora are initially determined as follows： sunny slope, slope between shady slope and sunny one, the slowly varied slope of middle and lower slope more than 10°, the thickness of effective soil layer more than 30cm.
出处
《林业科技》
北大核心
2006年第6期9-11,共3页
Forestry Science & Technology
基金
国家自然科学基金资助项目(39760065)
关键词
赤松
人工林
生长
立地因子
相互关系
Pinus densiflora
Plantation
Growth
Site factor
Mutual relationship
