造林把五关一、规划设计关。要按照造林技术规程，确定造林布局，编制出科学的造林规划和施工设计，避免盲目性、随意性。规划设计一定要因地制宜，适地适树。二、炼山整地关。炼山整地可促使土壤熟化，增强透水性，通气性，提高蓄水促墒能力和肥力。整地还能起到翻埋杂草... Afforestation to five off a, planning and design off. According to afforestation technical regulations, afforestation layout, the preparation of a scientific afforestation planning and construction design, to avoid blindness, randomness. Planning and design must be adapted to local conditions, suitable tree. Second, refining land preparation. Alchemy soil preparation can promote soil maturation, enhance water permeability, aeration, improve water storage capacity and fertility. Land preparation can also play buried weeds ...