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生产阔叶树苗要考虑的第一个因子是土壤。阔叶树苗对土壤的要求比大多数针叶树要严格。根据圃地土壤质地、地表和内部排水以及 PH 值等情况,应把最好的地块用于生产阔叶树苗。如果为发展阔叶树苗而建立新的苗圃就要特别注意圃地的选择。建立圃地时,大比例尺土壤图是很宝贵的。如果这种图不造用,土壤科学工作者应雇佣人员进行一次详细的圃地特性的土壤调查。土壤制图人员应在图上构出表土和底土质地相似区域、明显障碍排水深
The first factor to consider in producing broadleaf saplings is the soil. Broadleaf saplings are stricter than most conifers for soils. The best plots should be used for the production of broad-leaved tree saplings based on soil texture in the lands, surface and internal drainage, and PH values. If new nurseries are to be developed for the development of broadleaf saplings, special attention will be given to the choice of nursery. When creating nurseries, large-scale soil maps are invaluable. If this map is not used, soil scientists should hire personnel to conduct a detailed land survey of soil characteristics. Soil mapping staff should be constructed on the map of topsoil and subsoil texture of similar areas, significant obstacle drainage depth