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Wetlands

Historic 1902 map of Calumet Quadrangle near Chicago
Posted inNews

Chicago Wetlands Shrank by 40% During the 20th Century

by Kimberly M. S. Cartier 23 September 202011 January 2022

A team of graduate students measured wetland and biodiversity changes during the 100 years following the reversal of the Chicago River.

3 maps showing accumulation of sediment and organic material in coastal Louisiana
Posted inEditors' Highlights

Coastal Sediment Deficit Appears Smaller Than Previously Thought

by T. A. J. F. Hoitink 4 September 202024 February 2022

With a deficit of sediment needed to compensate for relative sea level rise, a new study demonstrates that organic material cannot be ignored in evaluating mass and volume accumulation rates.

Four plots showing production of greenhouse gases during laboratory incubations in organic soils and mineral soils, with and without nitrogen addition.
Posted inEditors' Highlights

Downhill from Here: Landscape Positions and Greenhouse Emissions

by W. M. Hammond 5 August 20209 December 2021

In comparing soils from two tundra wetland landscape positions, landscape position is found to matter, and toeslopes are associated with higher greenhouse gas production.

Plot of observed data shows increased carbon loss as temperature is experimentally increased
Posted inEditors' Highlights

Soil Carbon May Not Remain Bogged Down in a Warmer World

by E. Davidson 27 July 20201 April 2022

Carbon was lost from an experimentally warmed boreal peatland much faster than it took to accumulate. Elevated CO2 had little effect on stored carbon, requiring re-evaluation of model assumptions.

Two dozen alligators gather in clusters in a swampy area of Everglades National Park
Posted inFeatures

Lost in the Everglades

by Mary Caperton Morton 27 March 202029 September 2021

Living in Geologic Time: An unintentional adventure in the River of Grass shows how Florida has changed dramatically over 15,000 years of human habitation.

Green-leaved mangrove trees in Florida
Posted inNews

Coastal Wetlands Save $1.8 Million per Year for Each Square Kilometer

by Kimberly M. S. Cartier 4 March 202028 September 2021

The protective value of a plot of wetlands varies widely based on the county it shields from storm-related property damage.

Digitally generated impression of the channel network of the Waimakariri River in New Zealand
Posted inEditors' Highlights

Representing Estuaries and Braided Rivers as Channel Networks

by C. Ancey 21 February 20206 June 2022

The human eye is quite good at identifying channel networks among the rich patterns exhibited by estuaries and braided rivers, but computers have a harder time doing so. Could they do better?

Grassy bog with a strip of exposed, muddy peat
Posted inNews

Peatlands Are Drying Out Across Europe

by Michael Allen 14 November 20191 April 2022

Peatlands are some of the world’s largest reservoirs of soil carbon, but new research finds that in Europe they are drying out, putting them at risk of turning from carbon sinks to carbon sources.

Black oil pool on wet grassland
Posted inNews

Keystone Pipeline Spills 9,120 Barrels of Oil in Dakota Wetlands

by Kimberly M. S. Cartier 8 November 201918 May 2022

The leak took place along a preexisting section of the Keystone Pipeline. This is the pipeline’s fourth spill in 9 years.

A landscape view of a peatland in Estonia
Posted inNews

Resilient Peatlands Keep Carbon Bogged Down

by L. Poppick 8 October 20191 April 2022

Boreal peatlands contain some of the world’s largest reservoirs of soil carbon, and new research suggests some peatlands may hold on to that carbon even as the climate changes.

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From AGU Journals

MOST SHARED
Geophysical Research Letters
“Thermal and Illumination Environments of Lunar Pits and Caves: Models and Observations from the Diviner Lunar Radiometer Experiment”
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“NRLMSISE-00 empirical model of the atmosphere: Statistical comparisons and scientific issues”
By J. M. Picone et al.

HOT ARTICLE
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“Cyanobacteria and Algae Meet at the Limits of Their Habitat Ranges in Moderately Acidic Hot Springs”
By Kristopher M. Fecteau et al.


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