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- 八木 貴信
- 京都大学大学院農学研究科森林育成学研究室
書誌事項
- タイトル別名
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- Functional differentiation of modules in broad-leaved tree species.
- コウヨウジュシュ ニ オケル モジュール ノ キノウ ブンカ
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Variations in the properties of modules, together with their number and disposition within a crown, play an important role in the productive strategies of trees. For example, the differentiation of current-year shoots, which are the representative modules of tree species, into short and long shoots produces a useful division of labor. Short shoots (i.e., short current-year shoots with negligible internodes are oriented to foliage-maintenance. Long shoots (i.e., long current-year shoots with extended internodes) are oriented to crown-expansion. An efficient assimilation system is constructed by disposing the right type of shoots in the right position within a crown, according to the relative importance of foliage-maintenance and crown-expansion in the position. Also in some species without such apparent shoot dimorphism, short current-year shoots display a larger leaf area per stem length than long current-year shoots. as in species with the apparent differentiation of short and log shoots. Moreover, in species without such variations in the leaf area-stem length balance, short current-year shoots have low-cost stems with small stem mass per stem length instead of displaying a large leaf area per stem length. Consequently, their short current-year shoots have a greater leaf mass per stem mass than long current-year shoots. The diverse modes in shoot differentiation may be related to species' characteristics in terms of foliage-crown dynamics, such as the life spans of stems and leaves.
収録刊行物
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- 日本生態学会誌
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日本生態学会誌 50 (3), 235-250, 2000
一般社団法人 日本生態学会
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詳細情報 詳細情報について
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- CRID
- 1390282679267939968
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- NII論文ID
- 110001880939
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- NII書誌ID
- AN00193852
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- ISSN
- 2424127X
- 00215007
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- NDL書誌ID
- 5625717
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可