• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1998 Fiscal Year Final Research Report Summary

Comparative Ecological Study on Subtropical Forest in Canary

Research Project

Project/Area Number 09041146
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionField Research
Research Field 生態
Research InstitutionChiba University

Principal Investigator

OHSAWA Masahiko  Chiba University, Biology, Professor, 理学部, 教授 (80092477)

Co-Investigator(Kenkyū-buntansha) DEL Aroo Mar  ラ, ラクッナ大学, 教授
WILDPRET Wolfredo  University of La Laguna, Botany, Professor, ラクッナ大学, 教授
TAKADA Masashi  Nara Women's University, Associate Professor, 文学部, 助教授 (60273827)
EGUCHI Takashi  Kochi University, Humanities & Economics, Professor, 文学部, 教授 (30263966)
NAKAMURA Yukito  Sakushin University, Professor, 経営学部, 教授 (50198248)
OHTSUKA Toshiyuki  Chiba University, Biology, Research Assistant (90272351)
ARCO Marcelino Del  University of La Laguna, Botany, Professor
Project Period (FY) 1997 – 1998
Keywordsevergreen broad-leaved forest / cloud forest / tree architectural type / bud / leaf / shoot module / topographical gradient / comparative ecology
Research Abstract

Anaga cloud forests are the subtropical evergreen broad-leaved forests (so-called laurisilva) developed in the cloud zone of Tenerife, the Canary Islands. The forest-interior was humid conditions of Ca. 90 % RH throughout the year, though the humidity fluctuated depending on the wind direction and the height of trade-wind inversion layer. Soil moisture and nutrient conditions were changed gradually along the topographical habitat (ridge, slope, and valley) ; ridge habitat had high C/N ratio, lower NO_3 concentration, and high pF value comparing to those in valley. Depending on the soil and atmospheric conditions (strong wind, etc.), tree height and leaf-size were small at ridge habitat compared to those in valley. Statistics for all the evergreen broad-leaved tree species found in Anaga forest, most abundant tree traits were hypsophyllary-bud type (82.3 %) and notopyll-class leaf (47 %). These features support the notion that the evergreen cloud forest trees in the Canaries are the relic of the Tertiary tropical/subtropical humid forests once spreading much wider areas surrounding Thethys.

  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] Ohsawa, M.& Nitta, I.: "Patterning of subtropical / warm-temperate evergreen broad-leaved forests in east Asian mountains with special reference to shoot phenology" Tropics. 6. 317-334 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nitta, I.& Ohsawa, M.: "Bud structure and shoot architecture of canopy and understorey evergreen broad-leaved trees at their northern limit in East Asia." Ann. Bot.81. 115-129 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Bhuju, D.R., Ohsawa, M.: "Effects of nature trails on ground vegetation and understory colonization of a patchy remnant forest in an urban domain." Biol. Conserv.85. 123-135 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kitayama, K., Aiba, S. -I., Majalap-Lee, N., Ohasawa, M.: "Soil nitrogen mineralization rates of rainforests in a matrix of elevations and geological substrates on Mount Kinabalu, Borneo." Ecol. Res.13. 301-312 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yoshida, N.& Ohsawa, M.: "Seedling success of Tsuga sieboldii along a microtopographic gradient in a mixed cool-temperate forest in Japan." Plant Ecol.140. 89-98 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Bhuju, D.R.& Ohsawa, M.: "Species dynamics and colonization patterns in an abandoned forest in an urban landscape" Ecol. Res.in press.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Gutierrez, E.& Ohsawa, M.: "Selves Temperades. Biosfera Vol.6." Enciclopedia Catalana, Barcelona., 398 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Ohsawa,M.et al.: "Impacts on natural ecosystems. In : Global Warming : The Potential Impact on Japan." Springer, Tokyo., 244 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Ohsawa, M.& Nitta, I.: "Patterning of subtropical/warm-temperate evergree broad-leaved forests in east Asian mountains with special reference to shoot phenology" Tropics. 6. 317-334 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tang, C.Q.& Ohsawa, M.: "Zonal transition of evergreen, deciduous, and coniferous forests along the altitudinal gradient on humid subtropical mountain, Mt.Emei, Sichuan, China." Plant Ecol.133. 63-78 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nitta, I.& Ohsawa, M.: "Leaf dynamics and shoot phenology of even warm-temperate evergreen broad-leaved trees near their northern Iimit in central Japan." Plant Ecol.130. 71-88 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ohsawa, M.& Nitta, I.: "Northen distributional limit of evergreen trees and its conservation implications in a changing mountain environment in east Asia." Proc.2^<nd> Conf.NPPA-EA. 273-285 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Gutierrez, E.& Ohsawa, M.: "Selves Temperades.Biosfera Vol.6" Enciclopedia Catalana.Barcelona.(1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Ohsawa, M., Takashi, E., Nobuyuki, T., Ikeda, H., Nemoto, M.& Hada, Y.: "Impacts on natural ecosystems" Nishioka, S.& Harasawa, H.eds.Global Warming : The Potential Impact on Japan.35-99 Springer.Tokyo. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nitta, I & Ohsawa, M.: "Bud structure and shoot architecture of canopy and understorey evergreen broad-leaved trees at their northern limit in East Asia." Ann.Bot. 81. 115-129 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Bhuju, D.R.& Ohsawa, M.: "Effects of nature trails on ground vegetation and understory colonization of a patchy remnant forest in an urban domain." Biol.Conserv.85. 123-135 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kitayama, K., Aiba, S-I., Majalap-Lee, N., Ohsawa, M.: "Soil nitrogen mineralization rates of rainforests in a matrix of elevations and geological substrates on Mount Kinabalu, Borneo" Ecol.Res.13. 301-312 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshida, N.& Ohsawa, M.: "Seedling success of Tsuga sieboldii along a microtopographic gradient in a mixed cool-temperate forest in Japan." Plant Ecol.140. 89-98 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Bhuju, D.R.& Ohsawa, M.: "Species dynamics and colonization patterns in an abandoned forest in an urban landscape." Ecol.Res.14 (in press).

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1999-12-08  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi