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樟子松越冬苗木枯梢主要是失水造成的.在冬季和早春晴天时,常有短时较暖的气流,致使苗木蒸腾速度加快,这时地温很低,根系不能活动,蒸发掉的水分不能通过根的吸收得到补偿,因而产生苗木干梢现象,降低了苗木质量,影响造林成活率.解决的方法有二:
Seedlings of Pinus sylvestris var.mongolica are mainly caused by water loss.When winter and early spring are sunny, there are often short-term warmer air currents, resulting in faster transpiration of seedlings, when the ground temperature is very low and the roots can not move, and the evaporated water Can not be compensated by the absorption of roots, resulting in seedling stem tip phenomenon, reducing the quality of seedlings, affecting the survival rate of afforestation.There are two ways to solve: