树木移植后,往往出现有的是已展叶成活又逐渐死亡,有的植后不见抽发新叶、后来又慢慢萌芽成活,我们把这些现象称为假活假死现象。树木移栽时,根系受到损伤,各种代谢过程受到强烈干扰,加上移栽后生态环境发生了变化,从而产生枝叶萎蔫,叶片脱落等代谢活动降低的现象。如果植株能适应环境,根的吸收功能得到恢复,枝叶就逐渐舒展,最后就成活了;如果不能适应栽植环境,贮存在植物体内的水分耗尽后,这种失水引起的暂时萎蔫现象日趋严重,代谢需要的养分得不到供应,植株就会枯死。植物定植后,细致观察植物的枝叶,通常情况下,嫩叶和顶梢在晴天中午往往出现不同程 After the transplantation of trees, there are often those who have already spread their leaves and gradually die. Some do not find new leaves after planting, and then slowly germinate and survive. We call these phenomena the phenomenon of artificial death. When transplanted, the root system is damaged, and various metabolic processes are strongly disturbed. After the transplanting, the ecological environment changes, resulting in the decrease of metabolic activity such as wilting of leaves and leaves. If the plant can adapt to the environment, the absorption function of the root is restored, the branches and leaves gradually stretch, and finally survive; if it can not adapt to the planting environment, the moisture wasting in the plant is depleted, the temporary wilting caused by water loss becomes more and more serious , The nutrients needed for metabolism are not supplied, and the plants will die. Plant colonization, careful observation of plant foliage, under normal circumstances, young leaves and tops tend to appear at different times in the sunny noon