Table 2. Overview of apparent temperature sensitivities for root turnover rates (y^-1)in i) the current data set, ii) the global data set for grassland encompassing all climatic zones (Gill and Jackson [7]) and iii) a reduced data set extracted from Gill and Jackson [7] for grassland spanning a range in MAT of -0.7–12°C which corresponds to the range in MAT in the current data set. Exponents are given (± 1 SE).

	Current data set	Gill & Jackson global data set	Gill & Jackson reduced data set 1
exponent	0.197 (0.045)	0.048 (0.007)	0.063 (0.041)
apparent Q10	7.20	1.62	1.88

¹ no significant temperature effect