具有相同立地条件的各个地段的综合.在造林和育林工作中,用来作为林地分类的重要依据.同一立地条件类型的林地具有相同的生产力并可采用相同的造林和育林技术措施.
依据大量的调查资料，应用有序样本聚类方法，按林分类型、立地条件和林龄来确定次生林改造生长量划分标准；
Based on a large amount of investigating data, the authors use cluster analysis method with ordered samples to set dividing standards for the growth rate of secondary forests rechange.
对内蒙古敖汉旗大五家流域具有代表性的不同林地类型下以及不同立地条件下的土壤蓄水能力进行了测定和对比研究。
In this article, soil water storage capacity and availability of different vegetations in the northern of Ziwuling secondary forest region were studied with moisture retention curve.
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