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提出生态经济型防护林体系分类原则、依据 ,建立了 3级分类系统 ,划分了 3个防护林类型 2 6个林种 ,阐明了各防护林类型和林种的配置范围及功能作用
Based on the principle and basis of the classification of eco-economic shelterbelt system, a 3-level classification system was established and divided into 3 types of shelterbelt 26 forest types, clarified the allocation range and function of each type of shelterbelt and forest species