华北落叶松生长量与立地气候因子关系的研究  

Study on relations between growth trends of Larix principis rupprechtii and site climate factors in Gansu

作　　者：李书靖[1] 党宏忠[1] 何虎林[1] 王芳[1] 王三英[1] 

机构地区：[1]甘肃省林业科学研究所

出　　处：《甘肃林业科技》1999年第1期1-5,共5页Journal of Gansu Forestry Science and Technology

摘　　要：３０多年的生产实践表明，华北落叶松在甘肃大部分地区都可引种栽培，但引种效果差异很大。东南部地区引种造林生长速度快，增产潜力大，大夏河、祁连山等地造林效果差，２０龄时平均树高、胸径和材积生长量分别为东南部地区平均生长量的６０％、７０％和２３％。生长量大小与引种地区的立地气候条件关系密切，水分是影响生长量的主要因子，其次是温度；海拔高度与热量有关，海拔增高，温度降低，生长速度也随之减慢。A 30 year production practice of Larix principis rupprechtii have indicated that it can be introduced and planted in many areas of Gansu while significant differences of introduction effect is existed. The study stands out that there is a good introduction planting effect in southeast of Gansu, and the annual tree height, DBH and volume in Daxiahe and Qilianshan distract are 60%、70% and 23% of that in southeast of Gansu respectively. Moreover, there is a close relation between growth and site climate factor, and water is a major factor that influenced growth. Temperature, as a junior factor, was varied with altitute too. Temperature reduced and speed of growth slowed down while altitute increased.

关 键 词：华北落叶松 引种栽培 生长动态 立地气候因子 

分 类 号：S791.220.4[农业科学—林木遗传育种]