AMS Sand and Silt Dredge
- Made entirely from 300 series stainless steel
- Hinged scissor jaw design with a trigger mechanism
- 6" x 7 1/2" jaw opening
|445.70||5 lb SST Dredge|
|Drop ships from manufacturer|
In The News
A new report authored by researchers from the University of Nebraska-Lincoln suggests that the use of inorganic nitrogen and phosphorus for fertilization improves crop yields, but can have negative impacts on soil quality, the American Society of Agronomy has reported .
A study of crop lands in western Kansas has shown that inorganic fertilization increases organic carbon stocks while damaging soil’s structural quality.
Researchers collected soil samples from experimental fields fertilized with various amounts of inorganic fertilizers to determine how different nutrient levels might impact soil quality. The results showed that applying nitrogen and phosphorus at high rates can expedite soil erosion and cause other structural issues.Read More
Around the world, extreme wave heights and ocean winds are increasing. The greatest increase is happening in the Southern Ocean, according to recent research from the University of Melbourne , and Dr. Ian Young corresponded with EM about what inspired the work.
“Our main interest is ocean waves, and we are interested in wind because it generates waves,” explains Dr. Young. “Ocean waves are important for the design of coastal and offshore structures, the erosion of beaches and coastal flooding, and the safety of shipping.”
Waves also have a role in determining how much heat, energy and gas can be trapped in the ocean.
“The major reason why changes in wave height may be important is because of sea level rise,” details Dr. Young.Read More
All year long the US Geological Survey (USGS) in North Dakota and South Dakota monitors water levels, but during times of flooding, all eyes are on the team. EM spoke to USGS data chief Chris Laveau about the monitoring efforts.
“The US Geological Survey in North Dakota and South Dakota is one entity, so we monitor the flooding in both states,” explains Mr. Laveau. “The role is to provide continuous information on water level, we call that gauge height or stage, and we also provide continuous information at a lot of locations on stream flow, typically called discharge. We do that year round but, obviously, during a flood event it garners more attention.Read More