Articles tagged with Watersheds
A new letter published in the journal Science suggests that a controversial terminal project in the Skeena River estuary poses far-reaching risks, including harm to juvenile salmon populations. The study found that the proposed development area supports unusually high abundances of juvenile salmon from over 40 populations.
A Michigan State University study found that septic tanks are contaminating freshwater sources with fecal bacteria, threatening water quality and human health. The research used a novel source-tracking method to analyze 64 river systems in Michigan and identified areas with high numbers of septic systems as hotspots for pollution.
Biochar, a product of cooking chicken manure into charcoal, can retain nitrogen in soil longer than traditional fertilizers, capturing carbon in the process. This approach has been shown to improve nutrient retention in agricultural fields, offering a potential solution to the Chesapeake Bay's pollution problems.
Hydraulic fracturing requires varying amounts of water, with average volumes ranging from 2.6 gallons to 9.7 million gallons per well. The most water-intensive watersheds coincide with major shale formations such as Eagle Ford and Haynesville-Bossier.
The article discusses the challenges of watershed science in understanding complex systems and simulating human-nature interactions. Integrated research methods are proposed as a solution, combining approaches from different disciplines, including holism and reductionism.
A promising new solution for improving water quality is the Agricultural Conservation Planning Framework (ACPF), a systematic approach to identifying best options for reducing nutrient losses and erosion within a watershed. The framework provides an inventory of conservation possibilities, allowing farmers and stakeholders to choose th...
A new study found that large protected areas in the Xingu River Basin have limited the negative impacts of expanding agriculture on the region's water cycle. The research combined fieldwork, satellite data, and dynamic vegetation models to simulate the water budget, finding that deforestation has had a small effect on the area.
Researchers created a comprehensive guide for farmland in the Ohio and Upper Mississippi River Basins, narrowing the scope of choice to optimize run-off mitigation. The guide recommends specific conservation practices based on soil type, land slope, crops, and nutrients used.
A $3 million grant will restore 14.4 miles of streams in Pennsylvania, reducing flooding and improving water quality. The project will also create a riparian forest buffer to support a breeding population of native brook trout and other coldwater fish species.
A new study finds that muskrats and minks in central Illinois have high rates of toxoplasmosis, a parasite spread by cats. The researchers suspect tile drainage systems and lack of natural wetlands in the area are contributing to the disease's spread.
A three-year restoration project in Pittsburgh's Frick Park has improved the health of Nine Mile Run, a stream affected by urbanization. The project, led by University of Pittsburgh hydrologist Dan Bain, involved rerouting the creek and creating habitats for fish and other species.
A Stanford scientist is developing a flexible model to manage stormwater runoff in big cities, with the goal of determining its ecosystem and financial benefits. The research aims to study the value of stormwater retention services for large cities in developing countries and compare their benefits to other services.
Researchers found a significant warming trend in air and water temperatures over 51 years, with impacts on water quality, eutrophication, and aquatic life. Rising temperatures will lead to increased nutrient runoff and shifts in plant and animal distributions in the bay's freshwater rivers and streams.
The Department of Environmental Quality has awarded a $1.6 million grant to continue the water cleanup project at the Tar Creek Superfund site, led by Professor Robert Nairn and his team. The project aims to restore balance to the communities and wildlife in northeast Oklahoma.
A series of studies published in Biogeochemistry found that US cityscapes exhibit consistent patterns of urban evolution, shaped by human activities and ecosystem changes. These patterns can result in rapid losses or gains of ecosystem functions, depending on how cities are managed.
BioEYES K-12 program delivers two-week environmental curriculum using live zebrafish to teach students about local watersheds and pollution. The award supports the delivery of 'Your Watershed, Your Backyard' curriculum to 90 middle school students from Baltimore City Public Schools.
A study suggests that climate change will reduce hydrologic connectivity in the Verde River Basin by mid-century, forcing fish to travel longer distances for resources. The decrease in connectivity will also impact spawning, as fish are more mobile during this period.
A new study by US Forest Service scientists found that eastern hemlock loss due to the hemlock woolly adelgid insect has no significant effect on short-term stream flow, but increases peak flows after extreme storm events. The loss of foundation species in forested riparian zones could amplify climate change impacts.
Researchers will investigate how extreme rain events affect the transport of dissolved organic matter through the Connecticut River watershed, potentially impacting water quality and mercury inputs. The study aims to test a new conceptual framework for drainage networks and understand regional-scale dynamics of river systems.
The Academy of Natural Sciences will oversee monitoring and fieldwork for the William Penn Foundation's $35M grant-funded programs in eight designated geographic areas in Pennsylvania, New Jersey, New York, and Delaware. The project aims to improve water quality and citizen awareness among 15 million residents.
The American Geosciences Institute has announced two new recipients of the Wallace Scholarship, a prestigious award supporting female geoscience students. Elizabeth Denis and Kelly Deuerling will receive $5,000 each for their first year of study, with the potential for additional funding in subsequent years.
A study in the Gabayan watershed, Philippines, found that agroforestry reduces sediment yield by 20% and increases income for farmers. Agroforestry also helps communities adapt to climate change by improving water management and ecosystem services.
Research suggests that tropical forests play a crucial role in regulating water flow, with forested land releasing more water than grasslands during the late dry season. The study's findings support the sponge effect phenomenon, which aims to minimize flood damage and maximize water availability in the tropics.
A modeling study by US Forest Service researchers shows that reforesting the Lower Mississippi Alluvial Valley can significantly reduce runoff from agricultural lands and sediment entering rivers and streams. Converting agricultural lands to forests in or near battures can greatly lessen water outflow and reduce sediment load, with a t...
Researchers at the University of Washington have found that tree cover causes snow to melt more quickly in warm climates. In contrast, open areas tend to keep snow on the ground longer into the spring and summer. The study used temperature data from around the world to support its findings.
Researchers developed a high-resolution map of streams in the Potomac River watershed, revealing previously hidden streams and improving understanding of urbanization's impact on aquatic ecosystems. The study's findings have significant implications for sustainable development and land use decisions.
A 15-year study in the Hubbard Brook Experimental Forest found that trees in a calcium-treated watershed produced 21% more wood and 11% more leaves than their counterparts. The addition of calcium helped reverse decades-long decline caused by acid rain, with sugar maple trees responding most strongly.
A study found nearly 1 in 10 U.S. watersheds are stressed due to high demand for water exceeding natural supply. Climate change is projected to exacerbate this trend, creating challenges for agriculture, electrical suppliers, and municipalities.
The Rim Fire has burned over 254,000 acres in California, with pockets of unburned vegetation continuing to burn. Scientists are studying the fire's remains to determine vulnerable areas to mudslides once the rainy season begins.
A team of UT Arlington biologists discovered that watershed wetlands can improve stream health by binding toxic aluminum and reducing inorganic acids. This process, known as brownification, may also aid in recovering biological communities from industrial acidification.
Landsat satellites analyze post-fire images to estimate burn severity, helping crews focus restoration efforts on high-risk areas. By analyzing maps created with Landsat data, teams can identify areas at risk of post-fire flooding and implement restoration projects to mitigate damage.
A new study projects a 56% drop in Oregon's peak snowpack by mid-century, with significant impacts on ecosystems, agriculture, and hydropower. The study highlights the risks facing low-elevation, mountainous regions where snow often falls near freezing temperatures.
Researchers compared nutrient and sediment loss from no-till, conventional tillage, and reduced-input rotation watersheds, finding that no-till reduces soil erosion but may increase dissolved phosphorus. Reduced-input rotations strike a balance between conventional tillage and no-till, but led to higher levels of soil loss.
Researchers developed a quantum Drude oscillator (QDO) that mimics the behavior of real water molecules, producing a realistic liquid with well-developed hydrogen bonds and other properties. The 'bottom up' approach has clear biological applications and potential for simulating other substances.
A recent study by Arizona State University researchers found that reforestation efforts in the Panama Canal watershed may not always increase water supply, but can enhance carbon sequestration and timber production. The research highlights the importance of understanding the spatial distribution of ecosystem services and their trade-offs.
The Academy of Natural Sciences will provide scientific guidance and measurements for region-wide watershed conservation efforts. The grant will support coordinated conservation programs across the Delaware Valley region, focusing on water quality and environmental stressors.
A new study reveals that land use in watersheds can impact Bay water quality, with urbanized landscapes contributing energy to fuel low-oxygen 'dead zones'. Organic carbon from these sources is more resistant to degradation, leading to increased persistence downstream.
A new study found that large, hot fires do not necessarily lead to scorched soil. Instead, the soil temperature is affected by factors such as fire speed, heat travel direction, and landscape moisture content. This counterintuitive result could help forest managers plan controlled burns more effectively.
Researchers from Grand Valley State University and the University of Notre Dame are investigating how watershed environments affect contaminant levels in stream resident fish. The study aims to develop a mathematical process that predicts changes to the watershed landscape on native fish populations.
Climate change affects Alaskan forests with potential shifts to broadleaf forest or grasslands, but plastic greenhouse farming conserves water and binds carbon. Urban renewal and watershed restoration projects in Baltimore demonstrate social cohesion and improved storm-water management.
Research from the University of Illinois recommends a new framework for wetland restoration that could lead to more environmentally positive outcomes. The current guidelines often favor larger, more homogeneous wetlands over smaller, unique ones, potentially harming biodiversity.
The University of Minnesota will lead an international research network, Linked Institutions for Future Earth (LIFE), focusing on the impacts of climatic and human stresses on landscapes. The project aims to inform policymakers and practitioners with research that advances understanding and promotes landscape sustainability.
Researchers will deploy sensors to analyze streambed conditions, measure water flow, and evaluate restoration efforts in a historic creek on campus. The project aims to enhance the watershed and restore part of lower Hunnicutt Creek as part of Clemson's Intelligent River initiative.
Ozone's impact on forest watersheds amplifies drought and alters stream flow, reducing available water supplies. Forest ecosystems and people dependent on water flow during dry seasons will be affected.
A study found a fourfold increase in dissolved zinc in the upper Snake River over the last 30 years, driven by warmer air temperatures. Rising temperatures also accelerated mineral weathering rates, leading to increased metal concentrations in other months.
Research shows that preserving a mix of streams with different temperatures supports salmon reproduction and provides an all-summer buffet for brown bears and gulls. This diversity allows predators to access salmon for up to three months, rather than just a few weeks.
Ken Bierly, Senior Partnerships Coordinator at the Oregon Watershed Enhancement Board, has been recognized for his outstanding record of informing political decision-making with ecological science. He has developed tools for watershed management, including wetland regulations and local watershed councils.
Queen's University has received a $2 million donation from RBC to support the new RBC Queen's University Water Initiative. The initiative aims to raise awareness about the impact of industrial development and agriculture on watershed health and water supplies through research, education, and hands-on training.
Researchers studied sea surface temperatures to understand Earth's temperature trend, finding large variability that could mask anthropogenic warming. Meanwhile, a new study detected ionospheric disturbances caused by the Tohoku earthquake in Japan, with ripples in ionized gas nearly 350 kilometers above the Earth.
Researchers used models to estimate the impact of urban land development on Coho salmon populations, predicting a significant decline in numbers due to spawner mortality syndrome. The study suggests that toxic chemical contaminants in urban storm water runoff may be the primary cause of the recurrent fish kills.
A new study reveals that measurable amounts of mercury emitted by coal-fired power plants are deposited in local soil, contaminating regional watersheds and affecting fish populations. The research found hot spots of mercury contamination tied to specific power plants, highlighting the need for better energy production choices.
Heavy rainfall triggered landslides that choked rivers and overwhelmed the Panama City water-treatment plant, forcing a month-long shutdown. The new digital map of landslide scars will help authorities calculate future storm risk and minimize its impact on water supply.
Researchers at Vanderbilt University developed a technique to create graphene oxide films with adjustable surface roughness, leading to the creation of super-hydrophobic and super-hydrophilic surfaces. This could lead to applications in self-cleaning glasses, antifogging surfaces, corrosion protection, and more.
A new study reveals that nearly a third of zooplankton's diet comes from land-derived organic matter. The research provides insight into the complex interactions within aquatic food webs and the role of watershed inputs.
A UW-Madison team, led by Chris Kucharik and Adena Rissman, is conducting a comprehensive study on the Yahara watershed to understand the links between water systems, land use, climate change, and human activities. The goal is to develop tools for managing water resources in balance with social, economic, and environmental considerations.
A study led by the University of Colorado at Boulder found a four-fold increase in dissolved zinc over 30 years in the Snake River watershed, affecting stream ecology and fish populations. Climate change is believed to be the cause, linked to changes in groundwater conditions and snowmelt patterns.
Researchers will sample over 250 sites in southeastern New Hampshire and Maine's tributaries to pinpoint high nitrate concentration sources. The goal is to develop effective management strategies targeting nitrogen reduction in Great Bay.
Researchers at Indiana University-Purdue University Indianapolis are developing an interactive computer simulation framework to improve watershed management practices. The new $410,000 grant will enable community members to participate in restoring ecological balance and make informed decisions about water management alternatives.
The USGS has developed a new method for tracking the progress of reducing nitrogen and phosphorus delivery from the watershed to the Bay. Analysis reveals both good and bad news about progress over the past 31 years, with significant improvements in some watersheds but increases in others.
A comprehensive CEAP study reveals troublesome nitrogen and copper levels in a major Chesapeake Bay tributary, primarily sourced from agricultural fertilizers. High copper concentrations were found at lower reaches of the river, posing a threat to aquatic life.