検索画面に戻る Go Research

	(213Kb)

[B-6.1.2 Quantitative Analysis of Carbon Cycling in Pasture]

[Contact Person]

Hiromitsu Kirita
Dep. of Ecology, National Grassland Research Institute
Sembonmatsu 768, Nishinasuno, Nasu, Tochigi, 329-27 Japan
Tel 0287-36-0111(Ext.272), Fax 0287-36-6629

[Total Budget for FY1991-1992]

11,714,000 Yen

[Abstract]

An attempt is being made to measure the flow rates of carbon pathways in grazing pastures to make a simulation model of carbon cycling. According to the prototype model,it was calculated that the amount of CO₂ emitted from the grassland ecosystem to atmosphere were larger than the amount of CO₂ taken in from atmosphere to the grassland ecosystem on annual basis.On the other hand,CO₂ gas fluxes in grazing pastures are measured directly by eddy correlation method.The amount of CO₂ absorbed by grassland were larger than the amount of CO₂ emitted to atmosphere per diem when they were measured at fine days.

[Key Words]

Pasture, Carbon Budget, Soil Respiration, Simulation Model, Eddy Correlation Method