Soils as determinants of water quality and quantity
Results/Conclusions: We will present three case studies to illustrate the controlling role of soils. This includes the role of deep soil water on maintaining a healthy forested ecosystem, as analyzed from data collected at the Southern Sierra’s Critical Zone Observatory (CZO). The second example will demonstrate implications of using a range of soil management practices on fertilizer-nitrate leaching in agricultural ecosystems. Finally, mm-scale non-invasive measurements by using neutron tomography will exemplify the need for continued soil research to improve the understanding of coupled soil-plant root interactions, affecting both soil water availability and quality.