Forest fire and vegetation changes in tropical seasonal forests in Thailand.

2010 Fiscal Year Final Research Report

• Project/Area Number: 20405028
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: Forest science
• Research Institution: Kyoto University
• Principal Investigator: OKADA Naoki Kyoto University, 農学研究科, 准教授 (40335302)
• Co-Investigator(Kenkyū-buntansha): EGUCHI Seiーichi 千葉県立中央博物館, 環境教育研究科, 研究員 (00301789)
• Co-Investigator(Renkei-kenkyūsha): SAKAI Masaharu 独立行政法人国際農林水産業研究センター, 研究員 (00353699)
• Project Period (FY): 2008 – 2010
• Keywords: 植物珪酸体 / 森林火災 / 植生変遷 / 落葉フタバガキ林 / 乾燥常緑林

Research Abstract

Vegetation changes of tropical seasonal forests in Thailand was investigated using wood charcoal produced by forest fire and opal phytoliths. Forest fire occurred in Thailand at least 10000 years ago. The frequency of fire seemed to affect the forest vegetation: frequent fire induced deciduous dipterocarp forests, which were replaced with mixed deciduous forests, and then with evergreen forests with decreasing forest fire. Tropical seasonal forests were considered to be distributed to lower latitude area compared to the present distribution. Opal phytolith analysis used in this study was useful in studying past vegetation changes.

Research Products

• [Journal Article] Opal phytolith fossils in the soil of tropical seasonal forest in Sakaerat, northeast Thailand. (2008)
  • Author(s): Eguchi S, Okada N, Siripatanadilok S, Veenin T
  • Journal Title: In : Tropical Forestry Change in a Changing World, Bangkok, Dry forest Eorest Ecology and Conservatio vol.5 Pages: 149-156
• [Presentation] 植物珪酸体からみた東北タイの植生変遷 (2011)
  • Author(s): 江口誠一, 岡田直紀, 他2名
  • Organizer: 第21回日本熱帯生態学会年次大会
  • Place of Presentation: 那覇
  • Year and Date: 2011-05-28
• [Presentation] 東北タイにおける落葉フタバガキ林下表層部中の植物珪酸体化石群 (2010)
  • Author(s): 江口誠一, 岡田直紀, 他2名
  • Organizer: 第25回日本植生史学会大会
  • Place of Presentation: 名古屋大学
  • Year and Date: 2010-11-28
• [Presentation] 東北タイ各地域の熱帯季節林下の植物珪酸体群 (2010)
  • Author(s): 江口誠一, 岡田直紀, 他2名
  • Organizer: 第20回日本熱帯生態学会年次大会
  • Place of Presentation: 広島大学
  • Year and Date: 2010-06-19
• [Presentation] Opal phytolith fossils as a key to the past vegetation changes of the seasonal forests in Thailand. (2010)
  • Author(s): Okada N, Eguchi S, Siripatanadilok S, Veenin T
  • Organizer: The 1st Sakaerat Researchers' Meeting
  • Place of Presentation: Sakaerat, Thailand
  • Year and Date: 2010-02-16
• [Presentation] タイ東北部サケラートにおける熱帯季節林下の植物珪酸体 (2009)
  • Author(s): 江口誠一, 岡田直紀, 他2名
  • Organizer: 第19回日本熱帯生態学会年次大会
  • Place of Presentation: 大阪市立大学
  • Year and Date: 2009-06-20
• [Presentation] 東北タイにおける落葉フタバガキ林下の植物珪酸体化石群 (2009)
  • Author(s): 江口誠一, 岡田直紀, 他2名
  • Organizer: 第56回日本生態学会全国大会
  • Place of Presentation: 岩手大学
  • Year and Date: 2009-03-18
• [Presentation] Opal Phytolith fossils in the soil of tropical seasonal forest in Sakaerat, northeast Thailand. (2008)
  • Author(s): Eguchi S, Okada N, Siripatanadilok S, Veenin T
  • Organizer: FORTROP II International Conference "Tropical Forestry Change in a Changing World"
  • Place of Presentation: Bangkok, Thailand
  • Year and Date: 2008-11-18