Dam-building has decreased the amount of sediment transported by rivers, while land use changes have increased the amount.
watersheds
Posted inResearch Spotlights
Small Catchments Sustain Silicon Signatures Following Storms
Watersheds have unique patterns of silicon export due to differences in subsurface water routing and biogeochemical reactions.
Posted inEditors' Highlights
Improved Understanding of Runoff Dynamics in the Yangtze River Basin
Satellite data combined with in-situ observations on terrestrial water storage change and human water consumption provides a more accurate picture of runoff dynamics at sub-basin scale.
Posted inNews
A New Index to Quantify River Fragmentation
Researchers have developed a new analysis based on a river’s catchment area as opposed its length.
Posted inFeatures
Incredible Journeys on the Crown of the Continent
Living in Geologic Time: The making, breaking, and backpacking of North America’s Continental Divide.
Posted inScience Updates
A Sharper Look at the World’s Rivers and Catchments
Digital hydrographic maps have transformed global environmental studies and resource management. A major database update will provide even clearer and more complete views of Earth’s waterways.
Posted inEditors' Highlights
Water Quality Policy Must Consider Stored Watershed Phosphorous
Phosphorous stored in watersheds and affects water quality for decades. A new model predicts phosphorus accumulation and depletion, and the consequences for water quality conservation measures.
Posted inResearch Spotlights
River Ice Can Shape Watershed Ecology
As river ice cover decreases, the physical and biological changes to river ecosystems vary with the watershed characteristics and river size.
Posted inEditors' Highlights
Analysis Reveals Patterns of Streamflow Generation Across USA
A new study transforms a classic conceptual framework into a quantitative classification of streamflow generation patterns.
Posted inResearch Spotlights
Big Benefits from Experimental Watersheds
Scientific insights from the Agricultural Research Service’s long-term study sites underpin dozens of models and research methods that guide global land management and conservation practices.