The influence of topography on the distribution of organic and inorganic soil phosphorus across a narrow environmental gradient.

Abstract

We worked on four catenas (representing Brown, Dark Brown and Black Chernozemic soils, and a Luvisolic soil) which encompass a narrow environmental gradient of climate (annual precipitation: 300-475mm) and vegetation. The distribution of organic P along the catenas and among the soil zones was related to the transformations of inorganic P caused by differences in weathering intensity between slope positions and across the Province (of Saskatchewan). -from Authors