Soil Surface Dynamics in the Chihuahuan Desert at the Sevilleta National Wildlife Refuge, New Mexico (1994-2013)

Observations of the soil surface on the Sevilleta National Wildlife Refuge indicate that the surface is very dynamic. During collections of decomposition bags it has been noted that the bags are frequently resting on pedestals of soil, often 2-3cm above the surrounding surface. This study will attempt to measure the dynamics of the soil surface using a specially designed soil bridge. The soil bridge will allow for repeated measurements of the relative height of the soil surface at several sites on the Sevilleta. These measurements will be used to assess the impact of the changing soil surface on nutrient cycling.