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soils

An elephant eats grasses in Kruger National Park, South Africa.
Posted inNews

Large Herbivores May Improve an Ecosystem’s Carbon Persistence

Rishika Pardikar, Science Writer by Rishika Pardikar 14 January 202224 January 2024

The grazing habits of wild animals like elephants and boars enable long-term carbon storage, according to new research that stresses the need to align climate mitigation goals with biodiversity conservation.

Biocrust composed of mosses, lichens, and cyanobacteria
Posted inNews

Biocrust “Probiotics” Can Aid Dryland Restoration Efforts

by Derek Smith 10 January 202225 May 2022

Bacteria can speed up the growth of biocrust-forming organisms in nurseries, providing more material for restoration of degraded dryland soil.

The Pyramid of the Sun at Teotihuacan
Posted inNews

Mapping Teotihuacan’s Past, Present, and Future

by Humberto Basilio 6 January 20229 May 2023

A new lidar project reveals how mining and urban expansion have put one of Mexico’s most iconic cultural heritage sites at risk.

Crop residue mulch from a terminated winter rye cover crop is visible between rows of newly planted corn plants.
Posted inResearch Spotlights

Modeling Mulch to Understand Agricultural Soil

by Morgan Rehnberg 22 December 202122 December 2021

A new model helps shed light on residue mulch, an important regulator of surface soil conditions.

Field of dead and burned trees in the San Bernardino National Forest. Researcher Fabiola Pulido-Chavez stands among them with her back turned toward the camera.
Posted inNews

Wildfires May Alter the Nitrogen Cycle—and Air Pollution

by Krystal Vasquez 16 December 20217 July 2022

Research indicates that wildfires could be bolstering soil emissions of air pollutants that contribute to smog and climate change.

A line of giant stone moai from Rapa Nui (Easter Island).
Posted inNews

Settlement of Rapa Nui May Have Been Doomed by a Dearth of Dust

Rachel Fritts, Science Writer by Rachel Fritts 16 December 202127 March 2023

Rapa Nui and Hawai‘i offer a tale of two island settlements: Hawai‘i was close enough to Asia for continental dust to help replenish soil nutrients depleted by agriculture. Rapa Nui wasn’t.

A chat, or waste, pile near the Tar Creek Superfund site in Oklahoma.
Posted inNews

Community Input Drives Superfund Research

by Robin Donovan 14 December 202125 October 2022

Researchers identified geochemical tracers for lead and investigated Oklahomans’ concerns at the Tar Creek Superfund site.

Conceptual diagram showing how solute transport in saturated fine-textured and course-textured soils is altered by root exudates.
Posted inEditors' Highlights

Plant Root Exudates Mediate Soil Nutrient Transport

by D. Scott Mackay 9 December 20218 April 2022

Plant roots mediate solute transport through the soil immediately surrounding them by introducing polymers and other binding compounds that disrupt water transport pathways between soil pore spaces.

Mole configuration during the heating experiment after scraping soil into the mole pit.
Posted inEditors' Highlights

Not So Hot Under the Collar

by Germán Martinez and B. J. Thomson 27 August 202110 March 2022

Thermal properties of Martian soil as measured by the InSight lander.

Part of Canberra, Australia, where scientists have been using geochemical analysis to develop a predictive soil provenancing method.
Posted inNews

Predictive Forensics Helps Determine Where Soil Samples Came From

Tim Hornyak, Science Writer by Tim Hornyak 16 August 202118 November 2021

Researchers deploy geochemical analyses to narrow down the search area for a soil sample’s site of origin—an approach that could prove useful to law enforcement.

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