プログ山(フィリピン、ルソン島)の山地林における樹木植生の垂直分布と構造 Vertical distribution and structure of the tree vegetation in the montane forest of Mt. Pulog, Cordillera mountain range, the highest mountain in Luzon Is., Philippines

この論文にアクセスする

この論文をさがす

著者

    • Buot I. E. Jr.
    • Laboratory of Forest Ecology, Graduate School of Science and Technology, Chiba University
    • 沖津 進 Okitsu S.
    • Laboratory of Forest Ecology, Graduate School of Science and Technology, Chiba University

抄録

フィリピン・ルソン島のプログ山において植生垂直分布を記述した.植物地理学的特性をふまえて,それらを他の熱帯山地のものと比較しプログ山での特徴を検討した.以下の三つの植生帯が認められた. 1. Pinus林(2000-2400m. 2000-2300mはPinus純林, 2300-2400mはPinus-Deutzia-Schefflera林), 2. Lithocarpus-Dacrycarpus-Syzygium-Leptospermum林(2400-2600m), 3. Rhododendron^Clethra-Eurya林(2600-2700m).プログ山では,北方の温帯要素(Skimmia, Pinus, Ilexなど)が多く出現するため,フロラの特徴は,ルソン島南部や他のフィリピンの山地とは異なっていた.標高が増加するにつれて,種数,多様性,胸高直径,樹高などは減少する傾向にあった.垂直上部の植生帯における林冠優占種の多くは垂直下部の植生帯における林床構成要素であった.各植生帯の境界ははっきりしており,他の熱帯山地のように漸次的に変わるものではなかった.プログ山は,北方の温帯フロラの南限であり,また熱帯山地林において独自の森林型を呈する熱帯雲霧林の北限にあたる.

The altitudinal zonation of the montane forest of Mt. Pulog (2924 m altitude), Cordillera mountain range, the highest mountain in Luzon Is., Philippines was described and compared with other mountains in the Philippines and in the tropics. Three vegetation zones were distinguished from ca. 2000 m to 2700 m altitude each indicated by the common dominant species in the site ; Zone I (ca. 2000 m to 2400 m altitude), Finns, zone composed of a distinct pure Pinus forest (ca. 2000 m to 2300 m altitude) and a Pinus-Deutzia-Schefflera forest (ca. 2300 m to 2400 m altitude, Zone II (ca. 2400 m to 2600 m altitude), Lithocarpus-Dacrycarpus-Syzygium-Leptospermum forest and, Zone III (ca. 2600 m to 2700 m altitude), Rhododendron-Clethra-Eurya forest. The floristic character was not similar to the other mountains in southern Luzon and the rest of the Philippines because of the presence of a number of northern types (e.g. Skimmia, Pinus, Ilex and others) on Mt. Pulog. The number of species and species diversity, DBH, and height tended to decrease with increasing altitude. Dominant component species at the upper altitudinal forest zones were found to be the same species forming the understory elements of the lower altitudinal forest zones. The change of the vegetation between each zone was not gradual in contrast with the other tropical mountains. Mt. Pulog appears to be a southern extension of north temperate flora and the northernmost limit of the tropical mossy forest, a unique forest type within the montane zone in the tropics.

収録刊行物

  • 植生学会誌

    植生学会誌 15(1), 19-32, 1998

    植生学会

参考文献:  52件中 1-52件 を表示

各種コード

  • NII論文ID(NAID)
    110008145206
  • NII書誌ID(NCID)
    AA11347548
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13422448
  • データ提供元
    CJP書誌  CJP引用  NII-ELS  J-STAGE 
ページトップへ