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Western water and the β€˜critical zone’

Three CU ΒιΆΉΣ°ΤΊ faculty are leading a five-year, $6.9 million National Science Foundation grant to study the β€œcritical zone”—from Earth’s bedrock to tree canopy topβ€”in the American West.

Researchers will seek to uncover links between how water is stored in the critical zone and how that affects key processes in forest ecology, rock and soil chemistry, and water quality. This interdisciplinary work will also help predict how climate change might modify these interactions and change waterβ€”and therefore life in the West.

β€œThe critical zone is the surface of the Earth that supports life,” said Holly Barnard, lead principal investigator, associate professor of geography and fellow at the . β€œIt very much influences our quality of life.”

Western water diagram showing from top to bottom: air, organisms, soil, water, rock

The critical zone is Earth's permeable near-surface layer: a living, breathing, constantly evolving boundary layer where rock, soil, water, air and living organisms interact.

Principal investigators
Holly Barnard; Eve-Lyn Hinckley; Katherine Lininger

Funding
National Science Foundation (NSF)

Collaboration + support
Colorado School of Mines; Critical Zone Collaboration Network; Environmental Protection Agency (EPA); Institute of Arctic and Alpine Research (INSTAAR); Oregon State University; Penn State University; United States Geological Survey (USGS) University of California Santa Barbara; University of Nevada, Reno