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Symbol Package
An image depicts a house where an impervious concrete driveway has been replaced by special pavers that allow the ground below to retain water.
The Reduction of Hard Surfaces as a Key Watershed…
A conceptual diagram illustrates the seven key stewardship behaviors that can greatly impact the health of the watershed.
The Seven Key Stewardship Behaviors to Promote…
An icon representing the use or prohibition of lawn fertilizer application.
Lawn fertilizer icon
Ranking tributaries by water quality, then by diffuse nitrogen sources can help to determine which watersheds are high priority. High priority watersheds are those responsible for proportionally more nutrient and sediment inputs to receiving waters than other watersheds.
Steps to Identifying High Priority Tributaries
Badlands National Park sits upon highly erodible sedimentary rocks that form distinctive pinnacles, gullies and spires. Threats to the park include illegal fossiling and the invasion of weeds and non-native grasses.
Badlands National Park
Human impacts to Fort Union Trading Post include loss of native grass species, invasive plants and reduced river flow. Methods such as prescribed fire and the planting of native species have been used to restore and protect the site.
Fort Union Trading Post National Historic Site…
Some of the most common threats to the national parks ecosystems include those to quality of air, quality and quantity of available water, and the parks native species. Prescribed fire is used to prevent uncontrolled forest fires and to reduce the growth of nonnative species.
Generic Resources and Threats to the Northern…
While Jewel Cave is currently in pristine condition there are several threats that could potential damage this site. These threats include the pollution of ground water that seeps into the cave at various points and visitor impacts.
Jewel Cave National Monument Threats and Features
A conceptual diagram illustrates the main threats and key features of the Upper-Mississippi River Sub-Basin. Some of these threats include harmful algal blooms, power plants and urban centers. Diagram from
Main Threats and Key Features of the Upper…
The Niobrara River is where six major biomes converge to form a rich diversity of flora and fauna. Threats to the river arise from fire exclusion leading to the expansion of ponderosa pine into grassland area, changes in microclimates, the spread of invasive plants and the high volume of visitors during peak periods.
Niobrara National Scenic River Resources and…
The diagram lists potential indicators for the Ohio River Basin that were generated at the workshop. The goals listed in this diagram are representative of the things people value in the Ohio River Basin watershed.
Potential Indicators for the Ohio River Basin
Several connections were made at the Lower Mississippi River Basin workshops. These connections will be used to develop a basin-wide report card for the watershed.
Lower Mississippi Workshop Connections
Improvements in water quality can be counteracted by changes in nutrient sources and land-use practices. Increased nutrient loads from stormwater and intensified agriculture often overwhelm the positive effects of best management practices.
Counteracting Factors Impacting Best Management…
Emergent wetland species are planted in a buoyant matrix that floats at the water surface. The roots of these plants grow through the matrix and take up the nutrients they need to grow directly from the water, potentially decreasing nutrient concentrations.
Floating Wetlands Structure and Impact
Gutters and downspouts installed onto buildings direct rainwater from roofs to rain gardens. Plants with deep root systems encourage stormwater infiltration and absorbs excess nutrient runoff.
Multiple Benefits of Rain Gardens
A diagram showing best management practices required to target the numerous sources and delivery pathways of excess nutrient loads.
Targeted Practices Diagram
Conceptual diagram illustrating tabulated Best Management Practices (BMPs).
Best Management Practices (BMPs)
Conceptual diagram illustrating impervious and pervious surfaces.
Impervious versus pervious surfaces
Detention pond at flood, in Maryland.
Detention pond at flood
Infiltration trench in parking lot, in Maryland.
Infiltration trench in parking lot
Stormwater ditch full during heavy rains.
Stormwater ditch
Cows grazing along a stormwater ditch during heavy rains.
Stormwater ditch with cows
Rain barrel in Fleet Street, Eastport, Annapolis in Maryland.
Rain barrel
Rain barrel in Fleet Street, Eastport, Annapolis in Maryland.
Rain barrel
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