Coefficients

Standard error

T Stat

P-value

Lower limit 95.0%

Upper limit 95.0%

Constant

5.946

1.574

3.777

0.003

2.481

9.410

Altitude

−0.002

0.001

−3.293

0.007

−0.003

−0.001

Slope direction

0.013

0.004

3.534

0.005

0.005

0.021

Crown density

−0.298

1.449

−0.206

0.841

−3.488

2.892