| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for estimating the ratio of carbon dioxide emission amount through dividing the carbon dioxide emission amount of soil respiration and above-ground plant part respiration as component and carbon dioxide emission source of ecosystem respiration in a forest. SOLUTION: This method for estimating the ratio of carbon dioxide emission amount comprises setting a relational expression between carbon dioxide amount cE of ecosystem respiration, carbon dioxide amount csoil of soil respiration and carbon dioxide amount cav of above-ground plant part respiration, and stable carbon isotopeδ<SP>13</SP>CE of carbon dioxide of ecosystem respiration, stable carbon isotopeδ<SP>13</SP>Csoil of carbon dioxide of soil respiration, and stable carbon isotopeδ<SP>13</SP>Cav of carbon dioxide of above-ground plant part respiration, as [(δ<SP>13</SP>CE×cE) equals (δ<SP>13</SP>Csoil×csoil+δ<SP>13</SP>Cav×cav)], and calculating the ratio of the carbon dioxide amount of soil respiration and the carbon dioxide amount of above-ground plant part respiration from the values ofδ<SP>13</SP>CE,δ<SP>13</SP>Csoil andδ<SP>13</SP>Cav. COPYRIGHT: (C)2007,JPO&INPIT
|
