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Table 2 Relative importance (non-normalized contribution to multiple-R2 from multiple linear regression) of explanatory variables measured at thermocouple locations prior to prescribed burns in longleaf pine forest in southwest Georgia, USA, in May 2016; response variables are prescribed burn average temperature (Tavg), time over 60 °C (>60 °C), and their product (Tavg∙>60 °C). Bold font highlights relative importance values ≥ 0.1

From: Longleaf pine proximity effects on air temperatures and hardwood top-kill from prescribed fire

 

Relative importance

Factor

Tavg

>60 °C

Tavg >60 °C

Point basal area (m2 ha−1)

0.006

0.174

0.138

Wiregrass cover (%)

0.171

0.029

0.140

Herb height (m)

0.030

0.009

0.023

Shrub height (m)

0.020

0.002

0.005

Tree count (n)

0.001

0.010

0.004

Wiregrass moisture (g g−1)

0.007

0.033

0.008

Basal area * wiregrass (m2 ha−1 * %)

0.002

0.001

0.008

Sum (= multiple R2)

0.240

0.258

0.322