Variation in Structure of Larix olgensis Stands along the Altitudinal Gradient on Paektu-san, Changbai-shan, North Korea
Variation in Structure of Larix olgensis Stands along the Altitudinal Gradient on Paektu-san, Changbai-shan, North Korea
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朝鲜长白山白头山长白落叶松结构沿海拔梯度的变化
DOI：
10.1080/00040851.1994.12003053
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
J. Lepš
中科院分区：
文献类型：
--
作者：
M. Šrůtek;J. Lepš
对长白落叶松种群的空间结构和年龄（时间）结构沿沿着梯度的变化进行了研究。15个样地（20 × 20 m）的带状样带用于研究。长白落叶松的异速生长率在梯度上沿着变化显著，同一胸径下，随着海拔高度的增加，树木变矮。随着环境强度的增加，落叶松最大高度略有下降，最大宽度增加。生长率也随海拔高度下降。在所有样地中，树木都是丛生的，但是，丛生的强度并没有沿着梯度变化。年生长量的时空变异沿梯度沿着没有明显的趋势。有一些间接的证据表明，竞争的邻居在较低的海拔，但没有发现在最极端的地块，在最高海拔的梯度。
Variation in spatial and age (temporal) structure of a Larix olgensis population was studied along an altitudinal gradient at the treeline on the southeastern slope of Paektu-san (Mount Paektu) in North Korea. A belt transect of 15 plots (20 by 20 m) was used for the study. The allometry of Larix olgensis changed significantly along the gradient; trees are shorter at the same diameter at breast height (dbh) with increasing altitude. The maximum height of Larix krummholz slightly decreased and its maximum width increased with increasing environmental severity up the gradient. Growth rates also decreased with altitude. Trees were clumped in all plots, however, the intensity of clumping did not change along the gradient. Spatial and temporal variability in annual growth showed no marked trend along the gradient. There was some indirect evidence of competition by neighbors at lower altitudes, but none was found in the most extreme plots, at the highest altitudes of the gradient.