Table 1 Foliar nitrogen and carbon concentrations and carbon-to-nitrogen rations in green leaf tissues of Salix pulchra.

From: Road dust biases NDVI and alters edaphic properties in Alaskan arctic tundra

 

1 m from road

Reference site

p-value

% Nitrogen

2.35 (0.20)

1.65 (0.09)

0.027

% Carbon

50.48 (1.07)

48.00 (1.30)

0.194

Carbon:nitrogen

21.86 (2.31)

29.36 (1.09)

0.031

  1. Sites adjacent (1 m) to the road are compared with reference sites (625 m) far from the road. Mean (standard error) values are shown, along with the p-value associated with an unpaired Student’s t-test.
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