Objective:

Convert from root respiration data reported in George et al (where O$ _2$ was measured in $ \mu$L to units of mass.

In the appendix table, George 2003 reports the range of root respiration rates, converted to $ 15 ^\circ C$ and standard units:

$\displaystyle [11.26, 22.52] \frac{\mathrm{nmol CO}_2}{\mathrm{g} \mathrm{s}}$

In the original publication Allen (1969), root respiration was measured at $ 27 ^\circ $C. The values can be found in table 3 and figure 2. The data include a minimum (Group 2 Brunswick, NJ plants) and a maximum (Group 3 Newbery, South Carolina), which I assume are the ones used by George 2003:

$\displaystyle [27.2, 56.2] \frac{\mu\mathrm{L} \mathrm{O}_2}{10\mathrm{mg} \mathrm{h}}$



David 2011-10-07