Contribution to the knowledge on relic <i>Stipa</i> spp.-dominated ultramafic grasslands of the Central Balkans

The heterogeneity of the ultramafic vegetation of the Central Balkans is rather great. Although this vegetation has been continuously investigated, some gaps are still to be filled. For example, the lack of available data on ultramafic vegetation of the Republic of Macedonia is evident. In that light, we have investigated different relic <i>Stipa</i> species-dominated dry grasslands over ultramafic bedrock. Twenty relevés were made and compared to the similar vegetation types (i.e. <i>Potentilla visianii, Centaureo kosaninii-Bromion fibrosi</i>, “<i>Thymion jankae”</i>, <i>Saturejo-Thymion</i> and <i>Alyssion heldreichii</i>) by means of numerical analyses. We distinguished one new association and one informal community, providing them with diagnosis and lists of diagnostic, constant and dominant species. We also determined their syntaxonomic positions and relations to ultramafic syntaxa from the neighboring countries.巴尔干中部的超镁铁质植被具有极高的异质性。尽管该类植被已得到持续研究，但仍存在诸多研究空白。例如，北马其顿共和国的超镁铁质植被可获取数据严重匮乏。据此，我们对生长于超镁铁质基岩之上、以不同残遗针茅属（<i>Stipa</i>）物种为优势种的干旱草原开展了调查。我们共完成20个植被样方记录，并通过数值分析方法，将其与同类植被类型进行对比：包括<i>Potentilla visianii</i>群落、<i>Centaureo kosaninii-Bromion fibrosi</i>群落、“<i>Thymion jankae</i>”群落、<i>Saturejo-Thymion</i>群落以及<i>Alyssion heldreichii</i>群落。我们共识别出1个新群丛与1个非正式群落，并为二者提供了特征诊断描述，以及特征种、恒有种和优势种的名录。此外，我们还明确了它们的群落分类学地位，以及与周边国家超镁铁质植被群丛之间的关联。

搜集汇总

背景与挑战

背景概述

该数据集聚焦于巴尔干中部地区以Stipa属植物为主的超基性草地植被研究，旨在填补马其顿共和国超基性植被数据的缺失。通过20个样方调查，研究人员区分了一个新关联和一个非正式群落，提供了诊断和物种列表，并确定了其语法分类位置及与邻国类似植被的关系。