Spatiotemporal growth dynamics and disturbances in a subalpine spruce forest in the Alps: a dendroecological reconstruction
Spatiotemporal growth dynamics and disturbances in a subalpine spruce forest in the Alps: a dendroecological reconstruction
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阿尔卑斯山亚高山云杉林的时空生长动态和干扰：树木生态学重建
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
F. Schweingruber
中科院分区：
文献类型：
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作者：
P. Cherubini;P. Piussi;F. Schweingruber
重建了亚高山云杉（Piceaabies (L.)）的近代史，并对其大尺度扰动状态进行了评价。喀斯特)位于意大利阿尔卑斯山脉东部。开垦了一块0.4公顷的土地用于实验。活的树、死的茎和腐烂的树桩被识别、标记和绘制。从117棵树上取了截面。进行环宽测量和骨架图分析。通过抑制后的生长释放和同步疤痕的存在重建了林分过去的砍伐。该遗址受到人类活动的严重影响。过去在小斑块区域进行的木材砍伐对林分的稳定性没有负面影响。许多树木都有一个等待期，这表明它们在松散的树冠下生长缓慢。经过一段时间的等待，形成了一个空隙，允许它们生长。树苗在冠层下的等待对保证时空稳定性至关重要。骨架图对于高分辨率的生长记录是必不可少的。
The recent history was reconstructed and the large-scale disturbance regime evaluated of a subalpine spruce (Piceaabies (L.) Karst.) stand in the eastern Italian Alps. A 0.4-ha plot was cut for experimental purposes. Living trees, dead stems, and decaying stumps were identified, labeled, and mapped. Cross sections were taken from 117 trees. Ring-width measurements and skeleton plot analyses were performed. Past cutting in the stand was reconstructed from growth releases after suppression and the presence of synchronous scars. The site was heavily impacted by human activities. Timber cutting done on small patchy areas in the past did not negatively affect the stability of the stand. The presence of a waiting period in many trees shows that they grew slowly under a loose canopy. After a waiting period, a gap formed allowing their growth. The seedlings and saplings waiting under the canopy are very important to assure spatiotemporal stability. Skeleton plots are essential for a high resolution record of grow...