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Target Journal: PNAS

Vulnerability of montane runoff to increased Evapotranspiration with upslope vegetation redistribution. Target Journal: PNAS. Vulnerability of montane runoff to increased Evapotranspiration with upslope vegetation redistribution. Target Journal: PNAS.

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Target Journal: PNAS

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  1. Vulnerability of montane runoff to increased Evapotranspiration with upslope vegetation redistribution Target Journal: PNAS

  2. Vulnerability of montane runoff to increased Evapotranspiration with upslope vegetation redistribution Target Journal: PNAS

  3. Vulnerability of montane runoff to increased Evapotranspiration with upslope vegetation redistribution Target Journal: PNAS

  4. Trujillo, Molotch et al • Analyze interannual relationships between snowpack and peak NDVI • Snowpack from pillows • NDVI from GIMMS (AVHRR)

  5. Trujillo, Molotch et al • NDVI correlated w/ ET, GPP, LAI, foliage production • Heavier snowpack -> higher NDVI • Effect of snowpack on NDVI strongest (both r2 and slope) below 2000-2500 m • Forest below 2000-2500 m strongly water limited; high forest is cold limited

  6. Focus on “deep soil column” • Spatial patterns • Mechanism that control development and function • Implications for ecology, biogeochemistry and hydrology • What are spatial (elevation, local topography) patterns of “deep soil”? • How quickly can it form (weathering, fracture, etc)? • How do fast biogeophysics work (root depth, water movement)? • How does it control production, vegetation, biogeochemistry? • How does it control hydrology? • How will it control/limit/modify effects of climate change on montane hydrology, biogeochem/ecology? • Makes use of most people’s expertise • Important and poorly understood. Builds on round 1 – shows we’re learning . “Made great progress and will now focus on the next key unknown” • Clearly fits CZO scope/vision • Good experimental design essential

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