• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Forest Ecology and Management >Comparing the plant diversity of paired beech primeval and production forests: Management reduces cryptogam, but not vascular plant species richness
【24h】

Comparing the plant diversity of paired beech primeval and production forests: Management reduces cryptogam, but not vascular plant species richness

机译：比较配对山毛榉的植物多样性和生产森林：管理减少了CryptoGam，但不是血管植物物种丰富

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Conflicting evidence of the impact of forest management on biodiversity exists, either decreasing or increasing species richness. Variable diversity responses may result from the adoption of different unmanaged reference systems, ranging from stands with management abandonment in the recent past to true primeval forests. We compared the species richness of epiphytic bryophytes and lichens and vascular forest floor plants in three primeval forest/production forest pairs of Fagus-sylvatica in Slovakia, adopting a replicated design and a reference system without any management legacy. Mean number of bryophyte and lichen species per 500 m(2)-plot tended to be higher in the primeval forests, while the mean a-diversity of vascular plants was higher in the production forests. In contrast, the 13-diversity of the three plant groups as expressed by the Sorensen Dissimilarity Index was generally higher in the primeval forest plot sample, reflecting a higher heterogeneity of plant community composition and habitat diversity. Plotting cumulative species numbers against plot numbers suggests that the curves for bryophyte and lichen species richness may saturate at ca. 250 plots similar to 12.5 ha in the primeval forests, but already at 30-60 plots (<3 ha) in the more homogeneous production forests. Total bryophyte and lichen species numbers are estimated to be 30-100% larger in the primeval forests than the production forests. Contrary to general belief, vascular plant species richness was similarly high, or even higher, in the primeval forests when >50 plots (total area: 2.5 ha) were investigated, evidencing the importance of natural disturbance regimes for maintaining high forest biodiversity. Our results show that Fagus sylvatica primeval forests are inhabited by a species-rich epiphyte flora despite the species poverty of the tree layer. This evidences the outstanding value of primeval forest reserves for the conservation of temperate forest biodiversity. (C) 2017 Elsevier B.V. All rights reserved.
机译：森林管理对生物多样性的影响的冲突证据存在，无论是降低还是增加的物种丰富性。通过采用不同的非托管参考系统可能导致可变多样性响应，从最近过去的管理遗弃到真正的原始森林的立场。我们将Ebipytic Brophytes和地衣和血管森林地板植物的物种与斯洛伐克的三个原始森林/生产森林对进行了比较，采用复制的设计和参考系统，没有任何管理遗产。平均每500米（2）粒子的白细胞和地衣物种的数量往往在原始森林中倾向于更高，而生产森林的血管植物的平均多样性较高。相反，三种植物基团的13多样性在原始森林图样品中通常较高，反映了植物群落组成和栖息地多样性的更高的异质性。绘制累积物种对绘图号的数量表明，苔藓细胞和地衣物种丰富度的曲线可能在CA饱和。在原始森林中250个类似于12.5公顷的地块，但在更均匀的生产森林中已经在30-60个地块（<3公顷）。据估计，Primeval森林的总苔藓和地衣物种数量估计比生产森林更大30-100％。与一般信念相反，血管植物物种丰富性同样高，甚至更高，在原始森林中调查> 50个植物（总面积：2.5公顷），证明了自然扰动制度保持高森林生物多样性的重要性。我们的研究结果表明，尽管树木层的物种贫困，但Fagus sylvatica primeval森林居住在富含物种的骨骺菌群。这证明了对温带森林生物多样性保护的原始森林储备的出色价值。 （c）2017年Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号