| Project/Area Number |
07041045
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | Field Research |
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| Research Field |
Human geography
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| Research Institution | University of Tsukuba |
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Principal Investigator |
SAITO Isao Inst.of Geoscience, Univ.of Tsukuba, Professor, 地球科学系, 教授 (90006586)
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| Co-Investigator(Kenkyū-buntansha) |
SUYAMA Satoshi Inst.of Geoscience, Univ.of Tsukuba, Associate Professor, 地球科学系, 講師 (10282302)
MARUYAMA Hiroaki Faculty of Education, Kanazawa Univ., Asistant Professor, 教育学部, 助教授 (50219573)
SUZUKI Yuichi Inst.of Geoscience, Univ.of Tsukuba, Asistant Professor, 地球科学系, 講師 (70015858)
YAGASAKI Noritaka Faculty of Education, Yokohama Natl.Univ., Associate Professor, 教育学部, 助教授 (30166475)
MATSUMOTO Eiji Inst.of Geoscience, Univ.of Tsukuba, Professor, 地球科学系, 教授 (10015571)
EDUARD Pazer 国立パライバ大学, 基礎科学部, 教授
SOLANGE Cout ジョアキンナブコ研究所, 副部長
PAZERA Edwar 国立パライバ大学, 基礎科学部, 教授
COUTINHO Sol ジョアキンナブコ研究所, 地理副部長
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| Project Period (FY) |
1995 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥19,000,000 (Direct Cost: ¥19,000,000)
Fiscal Year 1997: ¥7,600,000 (Direct Cost: ¥7,600,000)
Fiscal Year 1996: ¥5,800,000 (Direct Cost: ¥5,800,000)
Fiscal Year 1995: ¥5,600,000 (Direct Cost: ¥5,600,000)
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| Keywords | Nordeste / geo-ecosystem / sertao / sugar cane production region / brejo / white sand / engenho / rubber plantation / ブレジョ / 地生態系 / 熱帯半乾燥地域 / 白砂-ハードパン / サトウキビ栽培 / 中規模水路灌漑 / 地下水揚水灌漑 / 持続的農業vs略奪的農業 / 地生態系(geo-ecosystem) / 堆積岩台地 / 大規模潅漑農業 / 家畜の放牧密度 / 持続的農業 |
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| Research Abstract |
Generally, Northeast Brazil (Nordeste) is divided into three ecological zones namely zona da mata, sertao, and agreste. THis study elucidates what kind of influence human activities gave to the regional ecosystem in each ecological zone, from the aspects of landuse strength by agriculture and grazing.
In addition to researches in arid and semi-arid region (Ico and Crato) and investigation of cashew nut zone brewing business in Fortaleza of Ceara during past two years, we investigated it about the sugar manufacture factory and the soil deterioration of sugar cane cultivation region in the aona da mata and agreste in this year.
As a result it became clear that, sugar cane field varied with hanging low of sugar price in rubber plantation, banboo vegetation, and ranch.And, in Gravata of Borbolema mountainous, the weekend resort which consisted of villa housing complex (Prive) was formed, and it became clear that studhorse ranches (Haras) are located in surrounding area of Gravata, too. Furthermore, we found the sewing industry city where developed by using surplus labor force in rural area.
On the other hand water preservation power of the soil in sertao where constituted by old igneous rock was weak, and it became clear that deterioration of the soil to do including white sand phenomenon in sugar cane zone went along. If a fall of production capacity is defined as desertation, even Nordesute it is moving calmly.
We will publish the results as "Nordeste : the environment and landuse" next year, because we apply grant-in-aid of publication.
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