Research Article

Emission of Carbon Dioxide Influenced by Different Water Levels from Soil Incubated Organic Residues

Table 2

Interaction effect of organic residues and water levels on carbon dioxide evolution.

TreatmentIncubation period (days)
714212835424956637077849198105112120
CO2-C emission (mg g−1 soil)

Carbon emission
 MC × Soil0.0160.0150.0150.0150.0150.0140.0130.0130.0130.0130.0120.0120.0120.0120.0120.0160.012
 MC × Soil + RS0.0240.0240.0240.0240.0240.0230.0230.0230.0220.0220.0160.0160.0160.0160.0160.0160.016
 MC × Soil + RR0.0300.0300.0300.0300.0290.0270.0280.0290.0290.0290.0230.0220.0220.0220.0220.0220.022
 MC × Soil + CD0.0220.0180.0180.0180.0180.0170.0180.0170.0170.0170.0170.0140.0140.0150.0140.0140.015
 MC × Soil + PM0.0420.0500.0470.0430.0410.0370.0360.0340.0340.0300.0300.0300.0300.0300.0290.0290.028
 FC × Soil0.0180.0170.0170.0170.0160.0160.0970.0160.0160.0100.0100.0100.0100.0100.0100.0100.009
 FC × Soil + RS0.0230.0230.0210.0230.0220.0160.0160.0210.0150.0150.0150.0150.0150.0150.0120.0120.012
 FC × Soil + RR0.0260.0250.0240.0210.0220.0210.0210.0170.0210.0210.0190.0190.0190.0190.0190.0190.019
 FC × Soil + CD0.0250.0200.0200.0200.0180.0210.0170.0210.0170.0170.0170.0170.0140.0140.0140.0140.014
 FC × Soil + PM0.0360.0340.0300.0300.0290.0210.0210.0270.0210.0210.0210.0210.0210.0190.0180.0180.018
 LSD0.05NS0.0230.0220.0220.0700.023NS0.0220.0230.0070.0230.022NS0.022NSNS0.007
Cumulative carbon emission
 MC × Soil11.3222.1732.9643.8054.2764.2873.6482.6391.72100.79108.87116.97125.04133.15141.21149.32157.56
 MC × Soil + RS16.9933.7750.5167.3183.7999.83116.21132.29147.39162.44173.46184.51195.60206.79217.91229.50240.26
 MC × Soil + RR21.2742.0562.7883.62104.08123.17142.49162.58182.68202.78218.85233.94249.04264.15279.26294.37309.59
 MC × Soil + CD15.3428.2441.0853.9466.2578.4990.85102.95115.08127.17139.26149.36159.48169.65179.76189.85200.08
 MC × Soil + PM29.2964.1096.90126.76155.26181.29206.63230.72254.83275.89296.96318.01339.12360.29380.41400.51419.77
 FC × Soil12.3824.3136.1247.9059.4370.5181.5992.59103.69110.80117.90124.98132.08138.95145.94152.92158.90
 FC × Soil + RS16.2432.1046.8762.6278.1489.1099.96110.58121.20131.82142.44153.05163.69174.37182.97191.58200.29
 FC × Soil + RR18.3336.1752.9467.7283.2498.16112.95127.54142.05156.61170.15183.69197.24210.79224.34237.88251.52
 FC × Soil + CD17.3231.2345.0058.7971.3583.2494.99106.55118.13129.69141.25152.81162.37171.93181.47191.03200.65
 FC × Soil + PM25.3249.2070.0690.84111.35126.27141.07155.67170.27184.85199.43214.02228.60242.19254.77267.36280.04
 LSD0.05NS7.246.715.456.495.227.114.798.277.0711.2013.588.157.728.139.431.01