Correction to: Natural Resources Research (2015) 24:317–327 https://doi.org/10.1007/s11053-014-9256-6

The original version of this article unfortunately contained an error in Equation 3. This error does not affect the results of the paper; merely the description of the model was incorrect. Both equations are nearly identical in terms of their functionality.

The correct equation is given below:

$$L_{M}(t) = \left\{ \begin{array}{ll} L_{H} + \left( {L_{L} - L_{H} } \right){\displaystyle{\frac{ {\log_{10}\, {M_{P}(t) /M_{H}}}}{{\log_{10}\, {M_{L} /M_{H} } }}}};&{\text{if}}\;M_{L} \ne M_{H}\\ {\displaystyle{\frac{\left( {L_{L} + L_{H} } \right)}{2}}};&{\text{otherwise}} \end{array} \right.$$