Table 1 Season average values of soil surface CO2 efflux (SSCE), soil moisture, soil temperature and plant biomass (dry weight ± S.D.) under different irrigation regimes in a grassland ecosystem in northern Ontario.
Irrigation Regime+ | SSCE μmol m-2 s-1 | Plant Biomass g m-2 | Soil Moisture % (0–10 cm) | Soil Temperature °C (at 10 cm) |
|---|---|---|---|---|
6 L / 2 days* | 5.26a ± (0.44) | 243.4a ± (23.05) | 25.59a ± (1.47) | 23.51a ± (0.37) |
12 L / 4 days | 3.98ab ± (0.54) | 236.3a ± (57.42) | 22.27ab ± (1.05) | 23.00a ± (0.27) |
24 L / 8 days | 4.46ab ± (0.36) | 216.1a ± (86.68) | 20.99bc ± (2.46) | 23.09a ± (0.40) |
42 L / 14 days | 3.46bc ± (0.80) | 200.0a ± (73.09) | 19.33bc ± (2.63) | 23.37a ± (0.28) |
84 L / 28 days | 2.92c ± (0.60) | 167.9a ± (54.24) | 18.07c ± (1.84) | 23.31a ± (0.33) |