パンチカード方式による冬期落葉樹木識別の為の基礎的研究 第1報

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書誌事項

タイトル別名
  • A basic study for the identification of the deciduous trees in winter by the use of punch cards (report I)
  • パンチカード方式による冬期落葉樹木識別の為の基礎的研究-1-
  • パンチカード ホウシキ ニ ヨル トウキ オチバ ジュモク シキベツ ノ タメ ノ キソテキ ケンキュウ 1

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The dormant period of the deciduous trees is endowed with many useful elements for transplanting, trimming, fertilization, propagation, collection etc. in the landscaping work, but the winter time that has little necessary elements for the identification of trees, for instance, flowers, leaves, fruits, is notwithstanding furnished with much difficulties for the identification of the species of them.<BR>Therefor, an trial to identify them has been made by the use of punch cards mainly based upon the winter bud. As the identification elements of trees based mainly upon the winter bud, there are buds, twigs, leaf scars, fibro-vascuiar marks, lenticels, piths etc., and these, being combinated, make up 18 identification items, taken in the punch cards. Further, the main items: A (insertion of the winter bud in the twigs), B (insertion style of the leteral bud in the twig), D (shape of the winter bud), E (scale of the winter bud), H (shape of the leaf bud, ) I (disposition of fibre-vascular in the leaf scar) are illustrated and described, and others are only described.<BR>This method of identification is practiced as follows: in the case of Platanus orientalis L., for example, being alternate and spiral in the item A, a and are kept and others are taken away, and by putting the stick into the hole from above and drawing the cards out, the required including Platanus orientalis L. are to be obtained. Out of these cards, using the characteristics of spindle shape in the item E, ring form of the leaf scar in the item H and so on, the repeated putting in of the stick will identify Platanus orientalis L. mechanically.<BR>These operations need, of course, not be started from the item A to B, C and SD on in order, but may be begun D or E etc. The operation being simple and the repetition being able to hit the mark, will give a good way for the identification of the winter deciduous trees.

収録刊行物

  • 造園雑誌

    造園雑誌 31 (3), 19-25, 1968-02-29

    社団法人 日本造園学会

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