It also revealed the trend that the principle of vegetation classification is becoming comprehensive and classification methods are utilizing numerical classification instead of exterior one.
揭示出植被分类的原则从单一性向综合性，分类方法从外貌分类向数量分类的发展趋势。
The classification and ordination of the grassland vegetation are studied with the numerical methods of TWINSPAN (Two-way indicative species analysis) and DCA (Detrended correspondence analysis).
本文运用二元指示种分析TWINSPAN和无倾向对应分析DCA的数学方法对草地植被进行分类与排序。
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