Patterns of Trunk Diameter, Tree Height and Crown Depth in Crowded Abies Stands |
| |
Authors: | KOHYAMA T; HARA T; TADAKI Y |
| |
Institution: | * Department of Biology, Faculty of Education, Kagoshima University Kagoshima 890, Japan
Department of Biology, Faculty of Science, Tokyo Metropolitan University Tokyo 158, Japan
Department of Biology, Faculty of Science, Shinsyu University Matsumoto 390, Japan |
| |
Abstract: | The size structure of trees in crowded, even-aged Abies (fir)stands of Shimagare or wave-regeneratedsub-alpine forests is analyzed. Tree-height distributions showconsistently smaller variation and less positive skewness thanthe distributions of trunk diameter and crown depth (tree heightminus height of the lowest branch). This difference is associatedwith changes in the relationships between trunk diameter, treeheight and crown depth as stands age. These, in turn, resultfrom self-pruning of the lower foliage crown due to competitionfor light in crowded stands. Abies, diameter-height curve, competition, size distribution, stand development, tree geometry, wave-regeneration |
| |
Keywords: | |
本文献已被 Oxford 等数据库收录! |
|