A new model quantifies the relative contributions of denitrification and other processes of nitrogen uptake, such as by plants, from groundwater in riparian areas around streams.
rivers
Posted inNews
The Eternal Nile Is Even More Ancient Than We Thought
Deep-mantle flow helps maintain the river’s steady course.
Posted inEditors' Highlights
Hydropower and Bugs
Alpine hydropower plants commonly flush sediment that accumulates at intakes, but the associated rapid rise in discharge, turbidity, and streambed instability put aquatic insects at risk.
Posted inNews
Are Beavers Nature’s “Little Firefighters”?
It’s about dam time: Beavers are acknowledged for their firefighting skills in five recent blazes.
Posted inNews
Looking for Prehistoric Pollen? Check the Floodplains
A new methodology calculates the soil properties most likely to preserve pollen.
Posted inEditors' Highlights
Permafrost Thaws Rapidly as Arctic River Flooding Increases
As climate warms, Arctic rivers carry higher flows and flood earlier in the spring, causing underlying permafrost to thaw rapidly.
Posted inNews
Dry Rivers Offer a Preview of Climate Change
As the climate warms, many rivers that are currently perennial may become intermittent.
Posted inNews
Diverting the Mississippi River May Not Save Louisiana’s Coast
New research finds that man-made river diversions have previously led to land losses.
Posted inNews
Is Chicago Water Pollution Halting a Silver Carp Invasion?
Pollution is definitely not the solution to stopping invasive silver carp, researchers assert. But cleaner waters could affect the invasion front.
Posted inResearch Spotlights
How Land Use Affects Nutrient Pollution in a Changing Climate
As heavy rain falls more frequently, the land alongside a river has a greater effect on the waterway’s nutrient levels—for better or worse.