2003 Fiscal Year Final Research Report Summary
Estimation of annual carbon budget of forest ecoxyxtems at meso-scale.
| Project/Area Number |
14580559
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | IBARAKI UNIVERSITY (2003)
Yamanashi Institute of Environmental Sciences (2002) |
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Principal Investigator |
OHTSUKA Toshiyuki IBARAKI University, College of Science, Associate Professor, 理学部, 助教授 (90272351)
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| Co-Investigator(Kenkyū-buntansha) |
SUGITA Mikio YAMANASHI Institute of Environmental Science, Researcher, 研究員 (60342961)
YAMAMURA Yasuo IBARAKI University, College of Science, Associate Professor, 理学部, 助教授 (50202388)
HORI Yoshimichi IBARAKI University, College of Science, Professor, 理学部, 教授 (30125801)
IKEGUCHI Hitoshi YAMANASHI Institute of Environmental Science, Researcher, 研究員 (50342960)
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| Project Period (FY) |
2002 – 2003
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| Keywords | Forest ecosystem / Net ecosystem production / Remote sensing / Mesa-scale / Mt. Fuji / Ken-marubi pine forest / Soil respiration |
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| Research Abstract |
Annual carbon budget of forest ecosystems at mesa-scale was estimated using ecological investigation and satellite remote sensing data. Terrestrial ecosystems on the out skirts of Mt. Fuji which have no complex topography and have various vegetation types on lava flows, were selected to the research area of the meso-scale estimation of carbon budget., Five forest ecosystems were classified by satellite, remote sensing data : pine forests, temperate conifer forests (cypress and hemlock), temperate deciduous forests, larch plantations, subarctic conifer forests. Soil respiration (SR) of the three of these five forest ecosystems was monthly measured, and net primary production (NPP) of a pine forest was also measured using ecological investigation. Annual carbon budget of forest ecosystem was estimated by net ecosystem production (NEP) : NEP = NPP -(SR-RR). It was assumed that root respiration (RR) contributed 4610 of soil respiration (SR) in forest ecosystems referred to the other ecological investigations. NPP at each ecosystem at mesa-scale was estimated by satellite NDVI data referred to ecological NPP data in the pine forest. To estimate SR at each ecosystem at mesa-scale, we constructed the 1 model of SR as function of monthly mean temperature of climatological station. As a result, total NPP in forest ecosystems of the research area (30877 ha) was 159 (10^3 t C yr^<-1>), and total SR was 275 (10^3 t C yr^<-1>). Total annual carbon budget in forest ecosystems of the research area at mesa-scale was 11 (10^3 t C yr^<-1>)
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[Publications] Ohtsuka, T., Kibe, T., Mariko, S., Kobayashi, K., Adachi, T., Koizumi, H.: "Effect of Free-Air CO_2 Enrichment (FACE) on structures of weed communities in a rice paddy field."Vegetation Science. 19. 25-31 (2002)
Description
「研究成果報告書概要(和文)」より
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[Publications] Koizumi, H., Kibe, T., Nakadai, Y., Yazaki, Y., Adachi, M., Inatomi, M., Kondo, M., Ohtsuka, T.: "Effect of free-air CO_2 enrichment on structures of weed communities and CO_2 exchange at the flood-water surface in a rice paddy field."Global Environmental Changes in the Ocean and on Land, TERRAPUB. (in press). (2004)
Description
「研究成果報告書概要(和文)」より
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[Publications] Goto, T., Ogasawara, A., Homo, T., Ikeguchi, H., Takeuchi, K.: "The Transition of Land Use and Biological Resources Use in Gunnai Region, the Eastern Yamanashi"Landscape Research (in Japanese). 66. 569-572 (2003)
Description
「研究成果報告書概要(欧文)」より
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[Publications] Ohtsuka, T., Kibe, T., Marika, S., Kobayashi, K., Adachi, T., Koizumi, H.: "Effect of Free-Air CO_2 Enrichment (FACE) on structures of weed communities in a rice paddy field"Vegetation Science. 19. 25-31 (2002)
Description
「研究成果報告書概要(欧文)」より
