Syntaxonomic revision of the Pannonian grasslands of Austria - Part II: Vienna Woods (Wienerwald)

被引:0
|
作者
Willner, Wolfgang [1 ]
Sauberer, Norbert [1 ]
Staudinger, Markus [2 ]
Grass, Viktoria [2 ]
Kraus, Reinhard [2 ]
Moser, Dietmar [1 ]
Roetzer, Harald [2 ]
Wrbka, Thomas [3 ]
机构
[1] Vienna Inst Nat Conservat & Anal, A-1090 Vienna, Austria
[2] AVL ARGE Vegetat Okol & Landschaftsplanung GmbH, A-1060 Vienna, Austria
[3] Univ Vienna, Dept Conservat Biol Vegetat & Landscape Ecol, A-1030 Vienna, Austria
来源
TUEXENIA | 2013年 / 33期
关键词
Austria; Caricion davallianae; Festuco-Brometea; Molinio-Arrhenatheretea; vegetation classification; Violion caninae; VEGETATION UNITS; CLASSIFICATION;
D O I
暂无
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
As second part of a series focusing on the Pannonian grasslands of Austria, we present a detailed classification of the grasslands of the Vienna Woods (Wienerwald). This region, although geographically belonging to the Alps, has strong floristic affinities to the Pannonian Basin. The eastern slopes of the Vienna Woods are a hotspot of xero-thermophytic vegetation and exhibit the highest vascular plant species richness in Austria at a scale of 3' x 5'. We used the TWINSPAN classification of a large data set reported in the first part of this series as starting point. Releves that were considered as misclassified at the level of alliances were manually re-arranged. From this table, an excerpt containing only the releves of the Vienna Woods was used for the present study (1055 plots). We re-classified the releves preliminary labelled as Arrhenatherion with another TWINSPAN run. Clusters for which no ecological difference could be detected were merged. The final delimitation of associations and subassociations was achieved by adjusting their diagnostic species so as to get units that were most informative in terms of environmental conditions. All re-arrangements were based on the summarised cover of diagnostic species within individual releves. As a result, the grasslands of the Vienna Woods are classified within 22 associations (plus two subassociations) belonging to ten alliances and four classes. Within the Seslerio-Festucion pallentis, a new association Scorzonero austriacae-Caricetum humilis is described. The semi-dry grasslands of the study area previously classified as Onobrychido-Brometum are described as new association Filipendulo vulgaris-Brometum erecti and assigned to the Cirsio-Brachypodion. The Anthoxantho-Agrostietum tenuis is reported for Austria for the first time, and its syntaxonomy is discussed within a broader geographical context.
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页码:421 / 458
页数:38
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