海浜植物を主とした生活型表示方式の試み

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概要

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• In seeking for the life form of plants reflecting micro-environmental conditions, NUMATA's migrule form (1947,50), and HORIKAWA and MIYAWAKI's growth form (classification of the growth form of weeds based upon the external morphological features of stem and root) were proposed besides RAUNKIAER's life form (1907). But, those forms are sometimes inadequate for the practical use, so I wish to add the leaf form to them. I classified the leaf form into 5 types on the basis of ecological characters of leaves refering to as well as RAUNKIAER's leaf size class and DANSEREAU's leaf type. La; acerose or scaly Ls; succulent Lc; coriaceous Lh; hairy Lt; thin The growth form and radicoid (radix+oid=underground part of a plant) form are divided as follows respectively. Growth form Se; erect Sb; branched Sc; caespitose Sp; prostrate St; twining Radicoid type Rs; straight root or straight rootstock Rf; fibrous or reticulate root Rb; branched root Rr; rhizome or stolon B; bulb and tuberous I tried the combination of life forms of plants as RAUNKIAER'S life form, shoot form, leaf form, radicoid form, and disseminule type. I used this new system of life-form combination for coastal plants at the seashore of Japan Sea in Hokkaido. As a result of that trial, it was of great use as a reflex of the micro-environment. For example, the vegetation type growing in each environment may be expressed as follows. 1. H-Se-Lt-Rb・f-D_4 at the fertile cliff area faced the sea 2. H-Se-Ls-Rs-D_4 at the rocky cliff area 3. H-Sp-Ls-Rs・b-D_4 at the coastal pebbly area 4. G-Sp-Ls-Rs・b-D_4 at the unstable sandy beach area 5. G-Se・p-Lc-Rs・r-D_4 at the intermediate area 6. N-Sb-Lt-Rb-D_4 at the stable area

• 日本生態学会の論文
• 1960-06-01

著者

• 桑原 義晴

  北海道倶知安高等学校

関連論文

• 北海道の耕地雑草
• 北海道南部地方の草原植生
• 海浜植物を主とした生活型表示方式の試み
• 北海道南部地方の耕地・耕地放棄地等にみられる雑草群落とその推移
• 隔月発芽試験による雑草生育期の季節的消長
• 北海道後志地方の農耕地に生ずる雑草生育期の季節的消長
• 北海道後志地方の馬鈴薯畑の雑草群落
• 倶知安登山口より觀た蝦夷富士の草本分布
• 倶知安面登山口より觀た蝦夷富士木本分布

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