By Kelsey Simpkins

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

Funding
National Science Foundation (NSF)

Collaboration + support
babyֱapp 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

 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.

Three CU Boulder babyֱapp are leading afive-year, $6.9 million National ScienceFoundation grant to study the “criticalzone”—from Earth’s bedrock to treecanopy top—in the American West.

Researchers will seek to uncover linksbetween how water is stored inthe critical zone andhow that affects keyprocesses in forestecology, rock andsoil chemistry, andwater quality. Thisinterdisciplinary workwill also help predicthow climate change mightmodify these interactions andchange water—and therefore lifein the West.

“The critical zone is the surface of the Earth thatsupports life,” said Holly Barnard, lead principalinvestigator, associate professor of geography andfellow at the . “It very much influences our quality of life.”


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