| Project/Area Number |
15405024
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
林学・森林工学
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| Research Institution | KYUSHU UNIVERSITY (2004-2005)
University of Miyazaki (2003) |
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Principal Investigator |
MIZOUE Nobuya KYUSHU UNIVERSITY, Faculty of Agriculture, Associate Professor, 大学院・農学研究院, 助教授 (00274522)
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| Co-Investigator(Kenkyū-buntansha) |
KAI Shigetaka The University of Miyazaki, Faculty of Agriculture, Professor, 農学部, 教授 (30041057)
ITO Satoshi The University of Miyazaki, Faculty of Agriculture, Associate Professor, 農学部, 助教授 (00231150)
YOSHIDA Shigejiro KYUSHU UNIVERSITY, Faculty of Agriculture, Professor, 大学院・農学研究院, 教授 (80128462)
MURAKAMI Takuhiko KYUSHU UNIVERSITY, Faculty of Agriculture, Assistant Professor, 大学院・農学研究院, 助手 (20332843)
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| Project Period (FY) |
2003 – 2005
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| Project Status |
Completed (Fiscal Year 2005)
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| Budget Amount *help |
¥11,100,000 (Direct Cost: ¥11,100,000)
Fiscal Year 2005: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 2004: ¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2003: ¥6,300,000 (Direct Cost: ¥6,300,000)
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| Keywords | Tropical forest / fuelwood / biodiversity / GIS / Forest resource inventory / International cooperation / 森林資源制度 / 持続性 |
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| Research Abstract |
Woodfuel is essential for daily life in many countries, but there have not been enough information on effects of woodfuel consumption on forest condition. The objectives of this study were to assess effects of woodfuel consumption on quantity (biomass) and quality (biodiversity) of forests and to propose some strategies for sustainability of both woodfuel use and forest resources, in Kampong Thom Province, Cambodia as a case study site.
First, we investigated the relationships between woodfuel consumption and forest biomass increment for each of three village groups ; remote area, populated area and intermediated areas, using GIS. The woodfuel consumption rate was estimated by interview surveys and the forest biomass increment was estimated using data of forest inventory and permanent sample plots (PSPs). The result showed that woodfuel consumption was larger than biomass increment in the area within 3 km from the National road.
Second, we did more detailed interview surveys for 200 hous
… More
eholds to assess differences in woodfuel consumption patterns among three village group. The results showed that people do not cut and use trees with DBH more than 30 cm for firewood and they collect firewood also in non-forest area. Considering these interview results, we re-assessed the balance between woodfuel supply (increment) and demand (consumption)
Third, to estimate forest biomass in details, we did re-measurement for 32 PSPs in Kampong Thom Province and for 20 PSPs in Koh Kong Province, and we did establish and re-measure 15 new PSPs in regrowth forest in Kampong Thom Province The results from these measurements were incorporated in the above re-assessment.
Forth, we examined the relationship between stand structure and species diversity of forest inventory plots and human population density within different distance from the plots. The result showed that tree density, stem volume and biomass had negative correlation with population density with 5 km from the plots.
Finally we measured stand structure in forests that local people actually recognized as suitable sites for firewood collection, and we clarified which species local people preferably selected Less
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