Spatial and Seasonal Variation in Rain Use Efficiency in Semiarid Grasslands of Inner Mongolia

Table 1

Differences in RUE_ADM and RUE_TDM  (g m⁻² mm⁻¹) between grassland type and precipitation years.

Year	Meadow	Typical	Desert	Year mean
RUEADM (g m^−2 mm^−1)
2006	0.62 ± 0.06	0.51 ± 0.02	0.19 ± 0.01	0.44 ± 0.07^A
2007	0.52 ± 0.04	0.41 ± 0.02	0.55 ± 0.03	0.49 ± 0.02^A
2008	0.86 ± 0.08	0.46 ± 0.03	0.43 ± 0.03	0.58 ± 0.07^A
2012	0.53 ± 0.04	0.43 ± 0.03	0.23 ± 0.01	0.39 ± 0.04^A
2013	0.37 ± 0.04	0.48 ± 0.02	0.38 ± 0.02	0.41 ± 0.01^A
Grassland type mean	0.58 ± 0.04^X	0.45 ± 0.01^XY	0.35 ± 0.03^Y	0.46 ± 0.03
RUETDM (g m^−2 mm^−1)
2013	3.80 ± 0.30^X	2.76 ± 0.14^Y	1.64 ± 0.10^Z	2.73 ± 0.13

Note. Significant differences in mean RUE_ADM among years within grassland type are indicated by letters A and significant differences among grassland type by letters X–Z, respectively. Standard error = ±SE.