Vadose Zone J. 7:1099–1109 (August 2008)

Theoriginalequations, Eq. [1] and Eq. [2], omitted the time dependency of the water content (θ) in the left-hand side of the equations and were incorrectly published as: 
\begin{eqnarray*}&&\frac{{\partial}\left\{C_{\mathrm{Puo}}(z,t)\left[1{+}\frac{\mathrm{{\rho}}}{\mathrm{{\theta}}(z,t)}K_{\mathrm{do}}\right]\right\}}{{\partial}t}{=}{-}\frac{{\partial}\left[v(z,t)C_{\mathrm{Puo}}(z,t){-}D(z,t)\frac{{\partial}C_{\mathrm{Puo}}(z,t)}{{\partial}z}\right]}{{\partial}z}\\&&{+}k_{\mathrm{o}}C_{\mathrm{Pur}}(z,t)\frac{\mathrm{{\rho}}}{\mathrm{{\theta}}(z,t)}K_{\mathrm{dr}}{-}k_{\mathrm{r}}C_{\mathrm{Puo}}(z,t)\frac{\mathrm{{\rho}}}{\mathrm{{\theta}}(z,t)}K_{\mathrm{do}}\end{eqnarray*}
[1]
and 
\begin{eqnarray*}&&\frac{{\partial}\left\{C_{\mathrm{Pur}}(z,t)\left[1{+}\frac{\mathrm{{\rho}}}{\mathrm{{\theta}}(z,t)}K_{\mathrm{dr}}\right]\right\}}{{\partial}t}{=}{-}\frac{{\partial}\left[v(z,t)C_{\mathrm{Pur}}(z,t){-}D(z,t)\frac{{\partial}C_{\mathrm{Pur}}(z,t)}{{\partial}z}\right]}{{\partial}z}\\&&{-}k_{\mathrm{o}}C_{\mathrm{Pur}}(z,t)\frac{\mathrm{{\rho}}}{\mathrm{{\theta}}(z,t)}K_{\mathrm{dr}}{+}k_{\mathrm{r}}C_{\mathrm{Puo}}(z,t)\frac{\mathrm{{\rho}}}{\mathrm{{\theta}}(z,t)}K_{\mathrm{do}}\end{eqnarray*}
[2]
...
In the application described in Demirkanli et al. (2008), the omitted term was determined to be negligible (because of the large adsorption involved compared to the change in water content over time) and was not included in the numerical model. This is probably why we were not as careful as we should have been in listing...
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