Plant–soil relationships in fragments of Mediterranean snow-beds: ecological and conservation implications

被引：0
|
作者：
Domenico Gargano
Giuseppe Vecchio
Liliana Bernardo
机构：
[1] Dipartimento di Ecologia dell’Università della Calabria,
[2] Museo di Storia Naturale della Calabria ed Orto Botanico dell’Università della Calabria,undefined
[3] TechfemSud,undefined
来源：
Plant Ecology | 2010年 / 207卷
关键词：
Canonical correspondence analysis; Ecological gradients; Global warming; Snow-bed vegetation; Spatial structure; South Italy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We investigated the spatial structures of soil properties and snow-bed vegetation, and their relationships, in southern Italy. We analyzed data on 26 plant species and 10 soil traits from adjacent 1 × 1 m plots in two snow-bed patches. Measures of spatial autocorrelation revealed striking spatial structures for plant cover and soil properties at both sites. Bivariate statistics and Mantel tests highlighted a significant correlation between spatial patterns of plants and soil in the study sites. Canonical correspondence analysis related such relationships to an ecological gradient connecting soil properties and plant assemblages in this unusual ecological context. Among the variables significantly related to plant patterns is the soil organic matter, which is recognized as being sensitive to global warming. Our analyses suggest that soil dynamics due to increasing temperature may promote the replacement of species typical of southern snow-bed ecosystems by more mesophilous plants.
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页码：175 / 189
页数：14
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