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About the Project:

Water Runoff & Erosion

We will explore the relationships between changes in the plant community and ground cover and water runoff/erosion processes. Emphasis will be on determining if critical thresholds exist in vegetation and ground cover that significantly influence runoff and erosion and how land management treatments may influence such thresholds. This work will be focused on the pinyon-juniper zone due to limited understanding of hydrologic processes and the hydrologic effects of tree removal treatments in this zone.

Erosion in Juniper WoodlandMeasuring runoff

 

 

Water runoff/erosion research objectives are as follows:

  • Identify thresholds for increased runoff and erosion as juniper overstory increases and understory plants decrease.

  • Measure the impact of prescribed fire on water infiltration capacity, overland flow and soil erodibility as juniper overstory increases and understory plants decrease.

  • Determine the impact of cross-felled juniper trees on hillslope surface runoff and rill erosion dynamics.

  • Improve our basic understanding of the hydrologic connectivity between areas of a hillslope under juniper canopy and areas between tree canopies.

  • Develop parameter data sets to expand the applicability of the Erosion Risk Management Tool to cover juniper management scenarios studied as part of this project.

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