Stipa grandis Equation
Total biomass
Total biomass
Total biomass
Total biomass
Total biomass
Total biomass
Total biomass
Total biomass
Aboveground biomass
Aboveground biomass
Aboveground biomass
Aboveground biomass
Aboveground biomass
Aboveground biomass
Aboveground biomass
Aboveground biomass
R2 F Df1 Df2 Sig. Constant b1 b2 R2 F Df1 Df2 Sig. Constant b1 b2
Linear 0.328 10.745 1 22 0.003 66.674 0.219 0.377 13.302 1 22 0.001 20.525 0.109
Quadratic 0.617 16.889 2 21 <0.001 -194.739 1.660 -0.002 0.522 11.463 2 21 <0.001 -65.755 -0.585 -0.001
Power 0.387 13.880 1 22 0.001 2.768 0.662 0.522 24.039 1 22 <0.001 0.650 0.758
Exponential 0.282 8.650 1 22 0.008 76.948 0.001 0.433 16.777 1 22 <0.001 27.970 0.002
Stipa grandis Equation
Belowground biomass
Belowground biomass
Belowground biomass
Belowground biomass
Belowground biomass
Belowground biomass
Belowground biomass
Belowground biomass
R: T
R: T
R: T
R: T
R: T
R: T
R: T
R: T
R2 F Df1 Df2 Sig. Constant b1 b2 R2 F Df1 Df2 Sig. Constant b1 b2
Linear 0.227 6.444 1 22 0.019 46.417 0.110 0.126 3.172 1 22 0.089 0.374 0.001
Quadratic 0.582 14.629 2 21 <0.001 -129.035 1.075 -0.001 0.243 3.362 2 21 0.054 1.638 -0.006 0
Power 0.170 4.520 1 22 0.045 3.463 0.528 0.070 1.660 1 22 0.211 0.188 0.230
Exponential 0.100 2.442 1 22 0.132 51.786 0.001 0.108 2.673 1 22 0.116 0.539 0.001