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Table 1 Weather conditions during burn treatment application by month, treatment, and longleaf pine seedling size class in South Carolina, USA, in 2013. There were no significant interactions among any of the independent variables in the model; the same superscript letter within a column and effect indicates no significant difference; HB = high-intensity burn; LB = low-intensity burn treatment

From: Fire effects on a fire-adapted species: response of grass stage longleaf pine seedlings to experimental burning

  

Air temperature (°C)

Relative humidity (%)

Wind speed (m s− 1)

Effect

Level

Mean

SE

Mean

SE

Mean

SE

Month

January

26.0b

0.2

61.0b

1.0

2.8a

0.4

May

28.9a

0.6

67.9a

1.3

1.6b

0.1

P-value

< 0.001

 

< 0.001

 

< 0.001

 

Treatment

HB

27.8

0.5

63.3

1.1

2.2

0.4

LB

26.9

0.4

64.9

1.3

2.3

0.3

P-value

0.074

 

0.290

 

0.793

 

Size class

Large

28.1

0.6

64.8

1.2

2.0

0.2

Medium

27.5

0.6

64.0

1.5

2.3

0.5

Small

26.6

0.4

63.6

1.7

2.4

0.5

P-value

0.089

 

0.820

 

0.144