REGENERATION IN SUBALPINE CONIFEROUS FORESTS .1. MOSAIC STRUCTURE AND REGENERATION PROCESS IN A TSUGA-DIVERSIFOLIA FOREST
REGENERATION IN SUBALPINE CONIFEROUS FORESTS .1. MOSAIC STRUCTURE AND REGENERATION PROCESS IN A TSUGA-DIVERSIFOLIA FOREST
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DOI：
10.1007/bf02488663
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发表时间：
1984-01-01
期刊：
影响因子：
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通讯作者：
KANZAKI, M
中科院分区：
文献类型：
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作者：
KANZAKI, M
本文研究了亚高山针叶林的更新过程。diversifolia（优势种）、威氏冷杉（Abies veitchii）、川冷杉（A. mariesii和云杉Picea jezoensis var. hondoensis的年轮资料进行了研究。年龄组分布是不连续的，在研究区（30 m × 30 m）中出现了4个年龄组。30米）。冠层是一个斑块镶嵌体（斑块面积为83.8-133.7 m2），这些斑块具有不同的平均年龄。冠层树木的补充只能通过提前更新进行。在差距中，冷杉和云杉的直径生长量大于铁杉的直径生长量。冷杉的树龄为200-300年，树干易发生心腐病。云杉的寿命为300-400年，铁杉的寿命超过400年。结果表明，更新过程可分为3个阶段：林隙开放前幼树的建立、林隙开放和以速生树种冷杉和云杉为主的高级更新幼树对林隙的修复;以及树冠树木的死亡，因为每一个物种都达到了它的生命周期的尽头，导致了长寿铁杉的纯粹斑块。
The regeneration process of a subalpine coniferous forest, a mixed forest of T. diversifolia (dominant species), Abies veitchii, A. mariesii and Picea jezoensis var. hondoensis, was studied on the basis of annual ring data. The age class distribution was discontinuous and 4 age groups occurred in the study plot (30 m .times. 30 m). The canopy layer was a mosaic of patches (83.8-133.7 m2 patch area), which had different mean ages. The recruitment of canopy trees was carried out only by advance regeneration in the plot. The diameter growth of Abies and Picea exceeded diameter growth of Tsuga in the gap. Abies lived for 200-300 yr and their trunks were susceptible to heart rot. Picea lived for 300-400 yr and Tsuga for more than 400 yr. The regeneration process derived from the analysis of the plot consisted of 3 phases leading to the development of an even-aged patch: the establishment of saplings before a gap opening; the opening of a gap in the canopy and repair of the canopy by advanced regenerated saplings dominated by rapid growth species, Abies and Picea; and the dying off of canopy trees as each species reached the end of its life-span, resulting in pure patches of long-lived Tsuga.