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米桐采用幼苗(1—2月苗)上山定植造林有许多特点,与大苗(1年生苗)上山比较,可以少用有苗地,且用地时间短,上山定植后容易成活,移栽造成的缓苗影响比较小,第二年生长较快;与直播造林比较,能节省用种,且保存率较高。幼苗上山定植由于在第一年生长过程中移栽,也有一定的缓苗过程,以及山场的条件一般不如苗圃条件,第一年的生长受山场条件的影响,可能不及苗圃条件下的生长量。但第二年的生长则避免了一年生苗移栽时的缓苗过程。因而幼苗上山第一年最终的生长量对下一年树体发展的影响就不再有移栽
Mirabae seedlings (1-2 month seedlings) uphill planting afforestation has many characteristics, and seedlings (1 year old) uphill, you can use less seedlings, and the time is short, easy to survive after uphill planting, transplanting caused Huanmiao impact is relatively small, the second year faster growth; compared with the live planting, can save the species, and the preservation rate is higher. Seedling uphill planting due to the first year of growth during transplanting, but also have some Huanmiao process, and the conditions of the mountain are generally not as good as the nursery conditions, the first year of growth by the mountain conditions may not be as growth under nursery conditions . However, the second year of growth is to avoid the process of rejuvenation of one year seedlings transplanted. Therefore, the first year of seedlings up the mountain last year’s growth on the next year the impact of tree development no longer have transplanting