Table 4 Parameters related to respiration processes4.

From: China economy-wide material flow account database from 1990 to 2020

Organisms

Requirement coefficients

Emission coefficients

O2

CO2

Water vapour

Unit: tonnes per head per year

Humans

0.25

0.3

0.35

Cultivated livestock

Cattle

2.45

2.92

3.38

Sheep

0.2

0.24

0.27

Horses

1.84

2.19

2.53

Pigs

0.25

0.3

0.35

Poultry

0.01

0.01

0.01