Earth and Planetary Science
EPS Atmosphere, Oceans, and Climate

Scientists link vegetation mosaics in California to patterns of weathered bedrock

Photo from northern ridge of Dry Creek watershed, looking north, shows annual‐grass dominated, low‐gradient hillslopes, with leafless winter‐deciduous mistletoe‐infested Q. garryana in foreground. The lumpy topography records relict earthflows.

 

EPS graduate student Jesse Hahm, with EPS alumni Daniella Rempe, Todd Dawson, and Sky Lovill, EPS postdoctoral researcher David Dralle, current EPS graduate student Alex Bryk, and EPS Professor Bill Dietrich, link vegetation mosaics in California to patterns of weathered bedrock.  See EOS Research Spotlight here.  Full text article: Lithologically Controlled Subsurface Critical Zone Thickness and Water Storage Capacity Determine Regional Plant Community Composition

Photo of south‐facing tributary of Dry Creek during rainstorm (10 January 2017), showing extent of wetted channels and widespread saturation overland flow. Person for scale (170 cm tall); point in lower‐right drains area of approximately 2 ha.