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。
The first axis in the ordination by DCA expressed the gradient of soil moisture while its second axis depicted the changes of soil types.
DCA排序第一轴反映土壤含水量梯度，第二轴反映土壤类型的变化。
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