Correction to: Environmental Earth Sciences (2021) 80:330 https://doi.org/10.1007/s12665-021-09618-2

Unfortunately, the article was published with a derivation error. The formula (7) in the article should be expressed as follows:

$${\text{EC}}_{{{\text{water}}}} = \frac{{\left[ {\frac{{\left( {\varepsilon_{{{\text{soil}}}} } \right)^{k} - \left( {\varepsilon_{{\text{s}}} } \right)^{k} }}{{\left( {\varepsilon_{{\text{a}}} } \right)^{k} - \left( {\varepsilon_{{\text{s}}} } \right)^{k} }} + \frac{{\left( {\varepsilon_{{\text{a}}} } \right)^{k} - \left( {\varepsilon_{{\text{w}}} } \right)^{k} }}{{\left( {\varepsilon_{{\text{a}}} } \right)^{k} - \left( {\varepsilon_{{\text{s}}} } \right)^{k} }} \cdot \left( {a\sqrt {\varepsilon_{{{\text{soil}}}} } + b} \right)} \right]^{h - m} }}{{\left( {a\sqrt {\varepsilon_{{{\text{soil}}}} } + b} \right)^{h} }}\left( {{\text{EC}}_{{{\text{soil}}}} - {\text{EC}}_{{{\text{surface}}}} } \right)$$
(7)

We regret the inconvenience caused.