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人工幼林对各种不良环境的抵抗力弱,如不及时抚育管理,就会影响造林成活率和保存率。造林的当年就要进行松土除草,减少土壤中水分蒸发,以解决杂草与幼树争光、争水、争肥的矛盾。造林的当年和第二年,每年要除草松土2～3次,第三四年,每年1～2次。在一般情况下,松土除苗要进行到幼林郁闭时为止。松土除草要做到不伤根,不伤梢,除净杂草,捡净石块,并要里浅外深,坡地浅平地深,造林后第一年浅,以后逐年加深。直播造林,在造林后的1～2年内,应分次进行间苗,以增加保留苗木的营养面积,调节光照条件,促进幼苗生长发育。通过间苗,最后每穴
The artificial young forest has weak resistance to various adverse environments. If not managed in time, it will affect the survival rate and preservation rate of afforestation. The year of reforestation will be carried out by loosening and weeding to reduce the evaporation of water in the soil, in order to solve the conflict between weeds and saplings, contend for water and fight for fertilizer. The year and the second year of afforestation, annual weeding loosening soil 2 to 3 times, the third four years, 1 or 2 times a year. Under normal circumstances, except soil seedlings should be closed until the young Lin closed. Tillage weeding to do not hurt the root, not hurt the tip, in addition to net weeds, pick up the net stone, and to the shallow depth, shallow shallow slope, afforestation in the first year of shallow, deepening year after year. Live afforestation, in 1 to 2 years after afforestation, should be carried out in batches in order to increase the conservation of nursery stock area, adjust lighting conditions, and promote seedling growth and development. Through thinning, the last hole