Abstract

A new index, phyto-indicator of variation of environment (PHIVE), is introduced based on the normalized lengths of the intersection of the amplitudes (intervals) of an ecological scale of all plant species that grow in a given habitat. It reflects the diversity of niches colonized by plants at the given point in time. The index can be applied to each scale separately or can represent averaged data for a number of scales. The method is suitable for various habitats (from relatively homogeneous to extremely heterogeneous ones), which is demonstrated through the example of the ecological scales developed by D.N. Tsyganov. It is shown that there is no causal relationship between the PHIVE value and the number of species in the site, i.e. they evaluate different features of diversity. The PHIVE can be used to assess changes in plant habitats on par with other parameters of the population structure.

中文翻译：

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环境条件变化的植物指标

摘要

根据给定生境中生长的所有植物物种的生态尺度的幅度交集（间隔）的归一化长度，引入了一种新的指标，即环境变化的植物指标（PHIVE）。它反映了在给定时间点植物所栖息的生态位的多样性。该索引可以分别应用于每个刻度，也可以代表多个刻度的平均数据。该方法适用于各种生境（从相对均质到极度异质的生境），这是通过DN Tsyganov开发的生态规模实例得到证明的。结果表明，PHIVE值与站点中物种的数量之间没有因果关系，即它们评估了多样性的不同特征。