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首页> 外文期刊>Biodiversity: Research and Conservation >Population dynamics of Pulsatilla patens (L.) Mill. in a new locality in Poland
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Population dynamics of Pulsatilla patens (L.) Mill. in a new locality in Poland

机译:白头翁(L.)米尔的种群动态。在波兰的新地方

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摘要

A new locality of Pulsatilla patens (L.) Mill. in the Wyszków-Jegiel Forest District, in the southern part of Puszcza Bia?a (ATPOL EC79) is described. This locality is situated on an escarpment, at the edge of Peucedano-Pinetum fresh pine forest with elements of Serratulo-Pinetum mixed pine forest and Potentillo albae-Quercetum steppe oak forest. Good light conditions prevail in the place of plant occurrence. Studies carried out in 2008-2015 showed an increasing trend of P. patens population, though, recently, this population seems to be stable. The number of species accompanying the pasque-flower also increased in this time period. It was found based on the analysis of flora directly neighbouring the clumps of the pasque-flower. During 7 years, the number of taxa increased by 31.5% on plot I and by 25% on plot II. In the years 2011-2013, the pasque-flower was represented both by flowering (1-2) and vegetative individuals. Afterwards, the plant was present only in vegetative stage. The number of its leaves varied in time. The highest number of leaves - 14 per individual - was noted in 2014, and the lowest number (1) - in 2012. The reason for a decline in the number of plant clumps in the site Dalekie and, at the same time, the greatest threat was the excavation of sand from the escarpment. In 2012, this escarpment slid down and several clumps of the pasque-flower were destroyed. Forest management and digging up by wild boars were additional factors limiting the population. To preserve the site of P. patens, measures of active protection should be applied.
机译:白头翁patens(L.)Mill的新位置。描述了位于Puszcza Bia?a(ATPOL EC79)南部的Wyszków-Jegiel森林区。这个地方位于陡峭的悬崖上,在Peucedano-Pinetum新鲜的松树林的边缘,有Serratulo-Pinetum混合松树林和Potentillo albae-Quercetum草原橡树林的元素。在植物发生的地方要有良好的光照条件。 2008年至2015年进行的研究表明,彭氏疟原虫种群呈增加趋势,尽管最近该种群似乎稳定。在此期间,伴随着白头翁的物种数量也在增加。根据对白头翁丛附近植物区系的分析发现。在7年中,地块I的分类单元数量增加了31.5%,地块II的分类单元数量增加了25%。在2011-2013年间,白头翁以开花(1-2)和植物个体为代表。之后,该植物仅处于营养阶段。它的叶子数随时间变化。在2014年,出现了最多的叶子-每人14张,在2012年出现了最低的叶子(1)。Dalekie站点中植物丛数量下降的原因,同时最大的原因是威胁是从悬崖上挖掘沙子。 2012年,悬崖陡坡滑落,几团白头翁被毁。森林管理和野猪的挖掘是限制人口的其他因素。为了保护彭定康的位置,应采取积极保护措施。

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