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黄土高原降水稀少,水土流失较重,土壤趋于瘠薄且持水能力差,干旱灾害严重,使得造林成活率和保存率较低。应加强适地适树和适地适林、合理配置林分密度、集水抗旱保墒造林技术等抗旱造林管理,并进一步推广应用固体水造林技术、生根粉、保水剂、基质激活造林技术等先进造林技术,充分利用土壤水分,提高林木成活率和存活率。
The rainfall in the Loess Plateau is scarce, the soil and water loss is heavy, the soil tends to be infertile, its water holding capacity is poor, and the drought disasters are serious, resulting in low afforestation survival rate and preservation rate. Should be appropriate to adapt to the suitable tree and suitable for forest, the rational allocation of stand density, water harvesting drought and soil moisture afforestation techniques such as drought management, and further promote the use of solid water afforestation technology, rooting powder, water retaining agent, substrate activation afforestation technology advanced Afforestation technology, make full use of soil moisture, improve forest survival rate and survival rate.