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首页> 外文期刊>Central European Forestry Journal >Aboveground Net Primary Production of tree cover at the post-disturbance area in the Tatra National Park, Slovakia
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Aboveground Net Primary Production of tree cover at the post-disturbance area in the Tatra National Park, Slovakia

机译：斯洛伐克塔特拉国家公园（Tatra National Park）扰乱后地区的地上植被净初级生产力

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Large-scale disturbances under the conditions of Slovakia, caused especially by storm and bark beetle, bring dramatic decline in carbon budget of the country, besides other negative consequences. The largest disturbance in modern history of the Slovak forestry was the storm damage that occurred in November 2004. The Tatra National Park (TNP) was one of the most affected regions. Thus, in this territory, two transects (T1 – the Danielov dom site and T2 – near the Horny Smokovec village) were established to survey basic dendrometric properties of trees in young stands established after the disaster. The standing stock of aboveground biomass in tree cover for the spring and autumn 2014 was calculated using the recorded variables, i.e. tree height and diameter measured at the stem base, together with the region-specific allometric relations. Then, the Aboveground Net Primary Production (ANPP) in tree cover was estimated with respect to its components (stem, branches and foliage). ANPP was 315 g m?2 per year (Transect T1), and 391 g m?2 per year (Transect T2). The differences in the structure of ANPP, i.e. contribution of tree components, were found between transects T1 and T2. They were caused by the contrasting tree species composition, specifically the ratios between Norway spruce and broadleaved species. Broadleaves allocated more biomass production to foliage than spruce. This phenomenon together with higher turnover (once a year) of foliage caused that broadleaves manifest higher share of fast-cycling carbon in comparison to the amount of carbon sequestrated in woody parts (stem and branches). High variability of ANPP was found within the transects, i.e. among the plots (microsites). As for the representative estimation of the standing stock of aboveground part of tree cover as well as ANPP at the post-disturbance area in the TNP territory, the survey should be performed on a net of research plots. Only this approach enables reliable estimates of carbon amount sequestrated in woody parts, eventually carbon yearly absorbed by young forest stands.
机译：斯洛伐克条件下的大规模骚乱，尤其是由暴风雨和树皮甲虫引起的骚动，除了造成其他负面影响外，还导致该国的碳预算急剧下降。斯洛伐克林业的现代历史上最大的干扰是2004年11月发生的风暴破坏。塔特拉国家公园（TNP）是受影响最严重的地区之一。因此，在该领土上，建立了两个样带（T1 – Danielov dom站点和T2 – Horny Smokovec村附近的T2），以调查灾后建立的幼林中树木的基本树状密度特性。使用记录的变量（即在茎基处测得的树高和直径）以及特定于区域的测长关系，计算了2014年春季和秋季树木覆盖物中地上生物量的固定存量。然后，就其组成部分（茎，枝和叶）估算出树梢的地上净初级生产力（ANPP）。 ANPP每年为315 g m ？2 （横断面T1），每年为391 g m ？2 （横断面T2）。在样点T1和T2之间发现了ANPP结构的差异，即树木成分的贡献。它们是由树种组成的对比引起的，特别是挪威云杉和阔叶树种之间的比率。阔叶植物分配给树叶的生物量多于云杉。这种现象与较高的树叶周转率（一年一次）一起导致，与木质部分（茎和枝）中固存的碳量相比，阔叶植物表现出较高的快速循环碳份额。在样带内，即在样地（微点）之间发现了ANPP的高变异性。关于对TNP领土上的灾后区域的树木覆盖的地上部分以及ANPP的代表性存​​量的代表性估计，应在研究地网上进行调查。只有这种方法才能可靠地估计木质部分中固存的碳量，最终估算出年幼林分所吸收的碳量。

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