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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。
More than 30 years of production practice shows that Larix principis-rupprechtii can be introduced and cultivated in most parts of Gansu, but the introduction effect is very different. The afforestation in the southeastern part of the rapid growth and yield potential, Daxiahe, Qilian Mountains and other places poor afforestation, 20-year average tree height, DBH and volume growth were the average growth of the southeastern region of 60%, 70% and 23%. The amount of growth is closely related to the site climatic conditions in the introduced area. Water is the main factor affecting the amount of growth, followed by the temperature. Altitude is related to heat, the elevation is higher, the temperature is lower and the growth rate is slower.