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数量化多元地位指数模型是以生态学原理为基础,在立地分类的基础上,对有林地和无林地统一评价的有效途径.从国内外有关研究的报道来看,建立此类模型,必须基于既要保证拟合和预估精度,又要便于在生产中推广使用这两条原则。1 项目、类目的确定以及样本资料的处理项目、类目的确定原则是:对林木生长起主导作用,又便于判别和测定的环境因子。分级的标准主要根据因子分布区问和各因子对树高生长影响的大小,做到尽量扩大级间差
Based on the principle of ecology and based on the site classification, the quantitative multiple status index model is an effective way to unify the evaluation of both forestland and non-forestland.Based on the reports of domestic and foreign research, the establishment of such models must be based on It is necessary to ensure that fitting and prediction accuracy, but also facilitate the promotion of the use of these two principles in production. 1 project, the purpose of determining the category and sample data processing projects, the purpose of determining the categories are: play a leading role in the growth of trees, but also facilitate the identification and determination of environmental factors. Grading standards mainly according to the factor distribution asked and the various factors on the growth of tree size, so as to expand the interstate difference