Sentences with phrase «nutrient runoff»

Rules limiting nutrient runoff from farms and wastewater treatment plants helped to decrease nitrogen concentrations in the bay by 23 percent since 1984.
A reduction of regional stress such as nutrient runoff or the loss of oxygen can mitigate the impact of global stressors like ocean acidification and warming.
Conventional efforts, like no - till farming and cover crops, have tried to address nutrient runoff by slowing its movement from soils to waterways.
And unlike nutrient runoff, which can be brought under control rather quickly, oxygen depletion that happens as a result of global warming can't be easily reversed.
The Great Barrier Reef has already experienced a 50 percent decline in coral cover over the last 27 years, in large part due to nutrient runoff from the coasts.
The setup is part of an experiment aimed at testing an unusual water pollution control scheme that uses gypsum, a waste product from coal - fired power plants, to reduce nutrient runoff from farms.
Caused largely by nutrient runoff from farm fertilizer, this oxygen - deprived «dead zone» is approximately the size of Connecticut.
The state Nutrient Runoff Law sets up protocols for the sale of any fertilizer containing more than 0.67 percent phosphate.
The 2010 state Nutrient Runoff Law requires stores to display lawn fertilizers containing phosphorous separately from those that are phosphorus - free and to post signs notifying consumers about the legal restrictions on using lawn fertilizers that contain the chemical.
«Severe harmful algal bloom predicted for Lake Erie in 2015: Second worst in century predicted: Heavy June rains causing heavy nutrient runoff into lake basin.»
The same spokesperson said that Gov. Andrew Cuomo's Water Quality Task Force is coordinating a multi-agency response to address nutrient runoff in Owasco Lake.
Washington, which produces farmed oysters, clams and mussels, is particularly vulnerable to acidification, for two reasons: seasonal, wind - driven upwelling events bring low - pH waters from the deep ocean towards the shore, and land - based nutrient runoff from farming fuels algal growth, which also lowers pH.
The researchers believe the findings have important implications for the future health of the Great Barrier Reef, as port expansions and high nutrient runoff is expected to increase over the coming decades, particularly in Gladstone, adjacent to where the reefs that were studied are located.
Growers have also established land buffers to absorb nutrient runoff and to keep animal waste out of streams.
Less oxygen reaching the interior, meanwhile, a product of both this increased stratification and significant nutrient runoff from farms, creates dead zones, a massive threat to marine life.
In case you don't know, the primary cause of the Gulf Dead Zone is the amount of nutrient runoff coming down the Mississippi River from farms upstream.
As continued research yields more precise information about optimal cover - crop seed mixtures and planting rates, Kaye predicted, farmers will deploy this strategy to enhance soil quality, control weed growth, manage critical nutrients such as nitrogen, improve crop yields and reduce nutrient runoff.
Hypoxia is fueled by nutrient runoff from agricultural and other human activities in the watershed.
Pollution is taking a devastating toll, illustrated by the dead zones created by nutrient runoff from fertilizer and from sewage discharge.
Changes in ocean salinity, nutrient runoff and other pollution can cause small - scale bleaching, but scientists say the widespread global bleaching this year is a symptom of unusual ocean warming.
Nutrient runoff may well be creating dead zones in coastal waters, but we can't just stop fertilizing our fields; global warming is a serious threat to coral reefs, but we can't just stop emitting greenhouse gases, and at this point it would probably be too late.
After the collapse of the Soviet Union, nutrient runoff was reduced threefold to fourfold, eliminating a 15,000 - square - mile dead zone off the northwest continental shelf of the Black Sea.
ref Specifically, reducing land - based sources of pollution (nutrient runoff and sedimentation) has been identified as an important approach to address acidification in coastal waters because nutrients like phosphorus and nitrogen and land - based carbon inputs can increase the acidity of coastal and oceanic waters.
They report the persistence of a long ecosystem interaction chain, which links trees to manta rays via changes to seabirds, forests, soils, nutrient runoff and plankton communities.
«Nutrient runoff» comes from sewage and other sources, but mostly from fertilizer and manure, which are especially high in phosphorus.
They report in Environmental Research Letters that they examined 740 different production systems for 90 different foods, to calculate levels of land use, greenhouse gas emissions (GHGs), fossil fuel energy use, the nutrient runoff that leads to eutrophication or «dead zones» in lakes and rivers, and the potential for acidification of the waters.
Unfortunately, climate change and nutrient runoff are making algal blooms even worse.
This project uses manure separating technology to reduce greenhouse gas emissions, nutrient runoff, and operating costs on a Pennsylvania farm.
In this same way, we can minimize the effects of global warming by decreasing other factors such as nutrient runoff, overfishing and heavy metal toxicity — but only if we know how to identify the most critical patients.
As our ocean chemistry continues to change, we will educate decision makers about ocean acidification and encourage the planting Ocean Friendly Gardens to create «living soils» that trap carbon and reduce nutrient runoff.
However, it remains a major scientific challenge to model and project the changes of the magnitude and intensity of subsurface oxygen depletion because it depends on changes in ocean circulation, rates of de-nitrification, and nutrient runoff from land, and because global data coverage for chemical and biological parameters remains poor.
But during the past decade, reports have highlighted the consequences of human activity on our coasts and oceans, including collapsing fisheries, invasive species, unnatural warming and acidification, and ubiquitous «dead zones» induced by nutrient runoff.
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