Table 2 Equations to predict lower-trunk growth increment based on monthly climate parameters for redwoods in two old-growth forests at Montgomery Woods State Natural Reserve (MW) and Landels-Hill Big Creek Reserve (LH). Predictors (V1 to V3) followed by regression coefficients (a to d), sample size (n), goodness of fit (R2), and form of equation. PDSI = Palmer Drought Severity Index, str = mean stream-flow discharge, pcp = total precipitation.
From: Tree-Ring Indicators of Fire in Two Old-Growth Coast Redwood Forests
Plot | V1 | V2 | V3 | a | b | c | d | n | R2 | Form |
|---|---|---|---|---|---|---|---|---|---|---|
MW | May PDSI | Sep str | Oct pcp | 0.022 | 0.104 | −0.001 | 1.234 | 63 | 0.405 | aV1 + bV2 + cV3 + d |
LH | Apr to Aug PDSI | Â | Â | 0.063 | 1.344 | Â | Â | 67 | 0.422 | aV1 + b |