Table 6: Path coefficient of each factor on CO2 emission.

Soil factor
Direct path coefficientIndirect path coefficient
(SMT) ( ) (WFPS)TotalError path coefficient

(SMT)0.806710.58300.25311.10160.2363
( )0.63920.735710.26071.2499
(WFPS)0.40140.50880.415111.0915