2,500-Year Vegetation History Based on the Phytolith Record in Paitan Lake, the Central Plain of Luzon, the Philippines

DOI Web Site 1 Citations 39 References Open Access

Bibliographic Information

Other Title
  • 植物珪酸体分析からみたルソン島中央平原パイタン湖における過去およそ2,500年間の植生変遷
  • ショクブツ ケイサンタイ ブンセキ カラ ミタ ルソントウ チュウオウ ヘイゲン パイタンコ ニ オケル カコ オヨソ 2 500ネンカン ノ ショクセイ ヘンセン

Search this article

Description

A 2,500-year vegetation history was reconstructed by analyzing phytolith assemblages in sediments from Paitan Lake located in the Central Plain of Luzon, the Philippines. Five local zones of phytolith assemblage were established for the sediment sequence analyzed. Cogon (Imperata) dominated in Zone 5 (ca. 2,460–1,410 cal. yr BP), cogon and other Gramineae grasses and coniferous trees dominated in Zone 4 (ca. 1,410–1,240 cal. yr BP), non-cogon Gramineae grasses and trees dominated in Zone 3 (ca. 1,240–1,150 cal. yr BP), cogon and other Gramineae grasses and trees dominated in Zone 2 (ca. 1,150–350 cal. yr BP), and Oryza sativa (rice) increased while trees disappeared in Zone 1 (ca. 350–0 cal. yr BP). The results of this study indicate that trees were included in the component species of the vegetation at least until ca. 350 years ago, and that woodlands were replaced with rice fields and Gramineae grasslands. The development of cogon grasslands in Zone 5 may have been due to drier climatic conditions.

Journal

Citations (1)*help

See more

References(39)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top