Rut Depth Parameter

Citation

Rut Depth Equation

First wheel pass

Maclaurin (1990)

$Z=d\times \frac{0.224}{{\text{NCI}}^{1.25}}$

First cycle pass

Rantala (2001)

$Z=-0.026+\frac{0.629}{\text{NCI}}$

Multi-pass

Scholander (1974)

$Z_n=Z_1\times n^{\frac{1}{a}}$

Saarilahti (2002a)

$Z_n={\left(Z_{n-1}^{a_n}+Z_1^{a_n}\right)}^{\frac{1}{a_n}}$

Vega-Nieva et al. (2009)

$Z_n^0=\frac{r_1}{\text{NCI}}{n}^{\frac{1}{\left(p_1{\text{NCI}}_0^{p_2}\right)}}{\left(1-\text{CF}\right)}^2$

Sirén et al. (2019)

$\log Z=b_0+b_{1}M+b_2{\text{MC}}_{\text{v}}+b_3\text{CI}+u_{tm}+e_{tm}$