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Critical Zone

A soil profile from the Wind River Range
Posted inEditors' Vox

Exploring the Engine and Drivers of Soil Formation

by A. G. Hunt, M. Egli and B. A. Faybishenko 26 February 20211 October 2021

A new book presents a multidisciplinary perspective on soil, exploring it as a nexus for water flow, near surface (bio)geochemistry, erosion and deposition, and biologically coupled nutrient cycling.

A conifer forest with many dead trees is seen in the foreground, with the Sierra Nevada in the background
Posted inScience Updates

Linking Critical Zone Water Storage and Ecosystems

by R. C. Bales and W. E. Dietrich 14 October 20207 March 2023

The geology and the structure of Earth’s critical zone control subsurface moisture storage potential and determine the resilience of forest and river ecosystems to drought.

Aerial view of patchwork agricultural fields in Illinois
Posted inScience Updates

Critical Agents of Change at Earth’s Surface

by P. Kumar, E. Herndon and D. D. Richter 29 September 202025 March 2022

By way of agriculture and industry, humans have major influences on the critical zone. Our past and present effects on the landscape, soil, and water will echo for a long time to come.

A hilly landscape in the Reynolds Creek Critical Zone Observatory, with charred soil in the foreground.
Posted inScience Updates

Soil Signals Tell of Landscape Disturbances

by K. A. Lohse, Sharon Billings, R. A. DiBiase, P. Kumar, A. A. Berhe and J. Kaye 24 September 202022 November 2021

The lasting influence humans have on Earth’s critical zone—and how geologic forces have mediated those influences—is revealed in studies of soil and carbon migration.

Closeup of a bank, showing layers of vegetation, plant roots, and soil
Posted inScience Updates

Life Teems Below the Surface

by J. Chorover, E. Aronson, J. McIntosh and E. Roden 24 September 202022 November 2021

Scientists are resolving how plants, microbes, and lithology sculpt the structure of the critical zone.

An image of many trees planted along a cliff.
Posted inAGU News

Next Steps for the Critical Zone

Heather Goss, AGU Publisher by Heather Goss 24 September 202022 March 2022

In October, Eos examines a pivotal point for a field of science that’s starting to make a name for itself.

Stefan Klingler, Ian Gambill, Jackie Randell, Anna Marshall mix salt into water for an in-stream tracer test in Little Beaver Creek in northern Colorado.
Posted inOpinions

Demystifying Critical Zone Science to Make It More Inclusive

by Kamini Singha, P. L. Sullivan, L. Li and N. M. Gasparini 24 September 202022 March 2022

A new network that embraces scientists with wide-ranging experiences and expertise aims to solve the challenges of Earth’s critical zone.

Perspective looking upward from the base of a large tree
Posted inFeatures

Critical Zone Science Comes of Age

by P. Waldron 24 September 202022 March 2022

The developing field, which unites Earth scientists to examine the planet’s surface as a single, unified entity, is unraveling the complex, interconnected processes that support life on Earth.

Posted inEditors' Vox

Tracing Water Through the Critical Zone

by M. Sprenger and M. Weiler 12 June 201723 September 2022

The authors of a recent paper in Reviews of Geophysics describe how isotope hydrology offers new insights into interactions at the interface between soil, vegetation, and the atmosphere.

Posted inOpinions

Taking the Pulse of the Earth's Surface Systems

by L. Larsen, E. Hajek, K. Maher, C. Paola, D. Merritts, T. Bralower, I. Montañez, S. Wing, N. Snyder, M. Hochella Jr., L. Kump and M. Person 2 December 201525 March 2022

As human activity alters the Earth's surface environment in unprecedented ways, a comprehensive survey campaign is necessary to predict future impacts.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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Small-Scale Indian Ocean Dynamics Underpin Marine Ecology and Climate

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