Table 2. Magnitude of slopes for stationary models of tundra and forest vegetation cover types across boreal North America.

Slope magnitude*	Tundra, × 106 ha	Forest, × 106 ha
Strong negative	1.2 (1.6%)	14.4 (12.1%)
Negative	1.5 (2.1%)	11.4 (9.6%)
Near zero	45.1 (62.4%)	87.9 (74.0%)
Positive	15.9 (22.0%)	1.9 (1.6%)
Strong positive	8.6 (11.9%)	3.2 (2.7%)

^*Magnitude categories correspond to Fig. 4.