根据喀斯特石林的高度、形态、层次、结构及其石林景观周围环境、植被状况，人类活动影响等八项评价因子对省内的主要石林景区进行了定量评价和排序。
According to the height, shape, gradation, the nearby environment, the vegetation and human activity of the karst stone forest, the main stone forests in Guizhou province were evaluated and ordered.
本文以毛乌素沙区柳湾灌丛草场荒漠化为例，应用植被分类、排序和梯度分析等技术，探讨荒漠化评价的理论和方法。
Salix scrub pasture in Maowusu desert as a case was studied. With the vegetation classification, ordination and gradient analysis, the theory and methods for desertification assessment were discussed.
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 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).
然后在DCA排序分析的基础上采用DCCA排序分析来反映环境因子和植被之间的关系来划分系统组。
On the base of DCA use the method of DCCA to mark off system group and reflect the relationship between environmental factors and vegetation.
用主成分分析排序法分析准噶尔盆地沙漠植被的多元特征。
The principal composition analysis (PCA) was used to study the multivariate characteristics of desert vegetation in Junnger Basin.
用主成分分析排序法分析准噶尔盆地沙漠植被的多元特征。
The principal composition analysis (PCA) was used to study the multivariate characteristics of desert vegetation in Junnger Basin.
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