Assessment of Western taiga habitat in Lahemaa National Park, Estonia

Q4 Agricultural and Biological Sciences
T. Paluots, J. Franklin, L. Maamets, D. Laarmann, A. Kangur, H. Korjus
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Abstract

Abstract Diverse structural elements play an important role in sustaining biodiversity in old-growth forests. Therefore, it is important to have thorough knowledge about these habitats and their condition in protected areas. Metsakorralduse Büroo OÜ conducted a large-scale Natura 2000 forest habitat inventory that covered 60% of Lahemaa National Park (LNP) area. Western taiga habitat data (7,191 ha) from this inventory was used for analysis of forest stages. The data was grouped according to stand classes by total area and these classes were compared by deadwood occurrence and relative density. For more precise evaluation of coarse woody debris (CWD) we used 27 sample plots from the Estonian Network of Forest Research Plots (ENFRP) located in LNP. The biggest areas of Western taiga habitat were covered by mature and old stages. CWD occurrence (over 5 m3ha−1 of snags and logs) by habitat representativeness is higher in old and natural forest classes. This logical result is overshadowed by the outcome that the CWD was not substantially present on 32% of the area in the old-growth forest class. This indicates that these areas lack the potential of biological legacies to provide critical niche habitats for different species. The study shows that the CWD quantity in Estonian conditions is similar to that reported in previous studies in this region, but because many of the older forest stage classes do not have any CWD present, these areas should include ecological restoration practices in their conservation planning. By creating snags, logs and gaps in these areas, we are able to create better structural variability and include wood into different decay processes.
爱沙尼亚拉赫马国家公园西部针叶林栖息地评估
不同的结构要素在维持原生林生物多样性中起着重要作用。因此,全面了解这些栖息地及其在保护区内的状况是很重要的。Metsakorralduse b roo OÜ对Lahemaa国家公园(LNP) 60%的区域进行了大规模的自然2000森林栖息地调查。西部针叶林生境数据(7191公顷)用于森林分期分析。将资料按林分的总面积进行分组,并以枯木发生率和相对密度进行比较。为了更精确地评估粗木屑(CWD),我们使用了位于LNP的爱沙尼亚森林研究样地网络(ENFRP)中的27个样地。西部针叶林栖息地的最大区域被成熟和老阶段所覆盖。按生境代表性计算,CWD发生率(超过5 m3ha−1的树枝和原木)在古林和天然林类别中较高。这一合乎逻辑的结果被结果所掩盖,即CWD在32%的原生林类区域中并未实质性存在。这表明这些地区缺乏为不同物种提供关键生态位栖息地的生物遗产潜力。研究表明,爱沙尼亚条件下的CWD数量与该地区以前研究报告的CWD数量相似,但由于许多较老的森林阶段没有CWD存在,这些地区应在其保护规划中包括生态恢复措施。通过在这些区域制造障碍、原木和缝隙,我们能够创造更好的结构可变性,并将木材纳入不同的腐烂过程。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Forestry Studies
Forestry Studies Agricultural and Biological Sciences-Forestry
CiteScore
0.70
自引率
0.00%
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0
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