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Characterizing Soils and Weathered bedrock across the Sierran developmental Sequence. What are the chemical mineralogical and physical properties? Can spatial variability be explained by Time , Topography, Parent material, Organisms, and Climate explain?
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Characterizing Soils and Weathered bedrock across the Sierran developmental Sequence • What are the chemical mineralogical and physical properties? • Can spatial variability be explained by Time, Topography, Parent material, Organisms, and Climate explain? • Do digital soil mapping techniques work (terrain attributes, airborne gamma ray mapping, remote sensing)? • Do spatial patterns in soil relate to trends in weathered bedrock characteristics? • How does the degree of soil development influence processes in weathered bedrock? • What is the role of weathered bedrock relative to resilience of ecosystems to climate change?
Analysis to date: 3 cores at SJER to 2m;4 cores at soap root 2.5-4.5 m; 3 cores at providence 8-11 m
400 m 1100 m 2000 m 2700 m Available H2O (cm/cm) Available H2O (cm/cm) Depth (m) Depth (m) Why is it shallower at 1100 m when soils are significantly more weathered?