R.CHANDA 国立ザンビア大学, 自然科学部, 上級講師
R.G.CHIMONYO ジンバブエ大学, 人文科学部, 上級講師
R.N.ASOMBANG カメルーン高等教育研究省, 人文科学研究所・人類学研究センター, 研究員
TSALEFAC University of Yaounde, Faculty of Social and Human Sciences, Lecturer, 人文社会学部, 講師
M.KUETE カメルーン高等教育研究省, 人文科学研究所・国立地理研究センター, 研究部長
J.ーL. DONGMO カメルーン国立ヤウンデ大学, 人文社会学部, 教授
SHINODA Masato Tokyo Metropolitan University, Faculty of Science, Research Fellow, 理学部, 助手 (30211957)
CHUJO Hiroyoshi Chubu University, Faculty of International Studies, Associate Professor, 国際関係学部, 助教授 (80207315)
IWASAKI Kazutaka Hokkaido University, Faculty of Literature, Associate Professor, 文学部, 助教授 (90176537)
TAKEUCHI Kazuhiko University of Tokyo, Faculty of Agriculture, Associate Professor, 農学部, 助教授 (90112474)
YAGI Hisayoshi University of Tokyo, Faculty of Agriculture, Associate professor, 農学部, 助教授 (80191089)
TAMURA Toshikazu Tohoku University, Faculty of Science, Professor, 理学部, 教授 (00087149)
ASOMBANG R. N. Center for Anthropological Studies and Research, Researcher
KUETE M. National Geographic Center, Ish/Mesires, Head of Geographical Researches
DONGMO J. -L. University of Yaounde, Faculty of Social and Human Sciences, Professor
CHIMONYO R. G. University of Zimbabwe, Faculty of Human Sciences, Senior Lecturer
CHANDA R. University of Zambia, Faculty of Sciences, Senior Lecturer
|Budget Amount *help
¥17,000,000 (Direct Cost : ¥17,000,000)
Fiscal Year 1990 : ¥8,000,000 (Direct Cost : ¥8,000,000)
Fiscal Year 1989 : ¥9,000,000 (Direct Cost : ¥9,000,000)
A two-year multidisciplinary research carried out in several selected areas of both northern savannas (Cameroon) and of southern savannas (Zambia, Zimbabwe and Malawi) of tropical Africa has led to following results :
1) East Cameroon : A survey of structure and composition, and soil profiles of gallery forests produced valid data for constructing a savannization model.
2) West Cameroon Highlands : Pollen analysis and radiometric datings of collected soil samples can be expected to contribute to the chronological make up of the environmental history in the last ca. 3,000 years and the origin and age of the "Grassfields" landscape.
3) West Cameroon Highlands : A detailed geoecological survey of a cattle-grazed grassy slope has led to a formulation of present-day land and vegetation degradation processes.
4) Sudano-Sahelian savanna zone of Northern Cameroon : Increased human impact has accelerated degradation in the last 15 years, under persistent drought conditions.
5) West Zambia : Some basic data for reconstructing the history of miombo woodland over the Kalahari Sands during the last two to three millenia were obtained.
6) South Zambia : The difference in the land management different farming systems can be used as a valid key for the interpretation of savannization processes.
7) Nyika Plateau : Widespread grasslands have been created by human activities, and their ages, creating and maintaining processes can be reconstructed by gathered data.
8) Malawi Highlands : Nature of land management has played an important role in savannization processes.
9) Central Zimbabwe : Increased human inpact in the last 30 years has resulted in accelerated degradation. In contrast, no severe degradation can be observed in the areas covered with the Kalahari Sands, because of unsuitablity for agriculture.
10) Throughout the areas investigated : The usefulness of soil stratigraphy for the reconstruction and interregional correlation of savannization history was reconfirmed.