A STUDY ON DEVELOPMENT OF ESTIMATING METHOD OF GLOBAL CARBON FLOW INDUCED BY HUMAN ACTIVITY

摘要

In this study, we developed a method of estimating global carbon flows induced by human activity. We propose Global Organic matter Account Table (GOAT) to describe the flows. GOAT consists of an input table, an output table and a trade table. To estimate the flows, we reconciled reported production and consumption values to material balances using material densities. Material density is defined as the mass of material per unit of money. The reconciliation of material balances is the way to balance out input and output flows. We make the tables in year 1997 to demonstrate the method. In the results, human activities take in 14107Mt-C from environment. The human returns 4237Mt-C to soil or water environment through disposing and exhausts 9600Mt-C to the air.