樟子松抗旱能力极强,在土壤含水率降至2%以下,其它阔叶树及草、灌木皆发生萎蔫时,造林成活一年的樟子松仍能正常生长。但樟子松春季造林因地温低、气温高,芽萌动后根系仍未开始生长,苗体本身水分失衡,严重影响造林成活率。近年来,我们用苗木低温贮藏的方法,实现了秋苗夏栽,将造林成活率由70.2%提高到93.1%。一、挖贮苗窖(沟)。有两种方法:一种是在坡度较小的阴坡常绿针叶树林地或阴坡 Pinus sylvestris very strong drought resistance, water content in the soil below 2%, other broad-leaved trees and grasses, shrubs are wilting, afforestation survival of Pinus sylvestris can still grow normally. However, the Pinus sylvestris var. Mongolica spring afforestation due to low temperature, high temperature, bud germination root system has not yet started to grow, seedling itself water imbalance, seriously affecting the survival rate of afforestation. In recent years, we use seedlings cryogenic storage methods, to achieve autumn seedling summer planting, afforestation survival rate increased from 70.2% to 93.1%. First, digging storage seedling pit (ditch). There are two ways: one is on shady slopes of evergreen coniferous forests or shady slopes