Bioavailable soil phosphorus decreases with increasing elevation in a subarctic tundra landscape.

While elevation also had a significant effect on all other soil properties except Bic-P i and HCl-P (which was almost significant) ( Table 1 , Table 2 ), there were no simple unidirectional trends with elevation for any of the other P fractions measured ( Figure 3 ) or for Al ox + Fe ox or the sorption index ( Figure 4 ).

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