| Project/Area Number |
21405039
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 海外学術 |
|---|
| Research Field |
Boundary agriculture
|
|---|
| Research Institution | Tokyo Metropolitan University |
|---|
Principal Investigator |
KOSAKI Takashi 首都大学東京, 都市環境科学研究科, 教授 (00144345)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
FUNAKAWA Shinya 京都大学, 地球環境学堂, 教授 (20244577)
OYAMA Shuichi 京都大学, アジア・アフリカ地域研究研究科, 准教授 (00322347)
KADONO Atsunobu 首都大学東京, 都市環境科学研究科, 助教 (50511234)
|
|---|
| Project Period (FY) |
2009 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2011: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2010: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2009: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
|
|---|
| Keywords | 生産生態資源 / 熱帯アフリカ / 農業生産 / 不均一性 |
|---|
| Research Abstract |
The main factors that cause variability in agro-ecological conditions in tropical Africa were primarily the variation in parent materials of soils and climatic conditions in a larger scale, whereas in a smaller scale soil erosion as well as organic matter dynamics are considered to be main factors for such variations. The ways of selecting cropland by local farmers were traditionally rather reasonable ones, which corresponded to respective soil fertility indices, as observed in the cases in whole Tanzania or a forest-savanna contact zones in eastern Cameroon. It is necessary, however, to adopt alternative agricultural techniques that can concentrate organic matter resources, N and P to agricultural land.
|
