Water Budget Substrate of the Dredge Material Science Assignment Help

Assignment Task

Task
Using the information in the handout on your location, students assigned the same location will work together to
identify all possible pros and cons of the location to be used for wetland creation. Topics you could address in your
group include:
• Hydrology—What would the water budget of this location look like? Specifcally, what are the inf ow sources
and how would water f ow out?
• Soil—How would the substrate of the dredge material match up with the substrate currently found at the
proposed location? Specifcally, is the source (dredge) material from close proximity to the site material?
(Remember from the background information you read that dredge material comes from the areas running of
into the waterway.)
• Nutrients—Are nutrients being fushed into and out of this location to support plant life? Is there potential
Based on map by Wikimedia contributor Kmusser,
CC BY-SA 3.0.
“Dredge Today, Restore Tomorrow” by Kristine N. Hopfensperger Page 2
NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE
for this site to become a source of nutrient pollution?
• Biota—What types of plants would thrive in this location and what animal species would subsequently live
there? Specifcally, are there marsh areas nearby to provide source seed and animals? Are there invasive species
in the area that would dominate the newly created wetland?
• Social aspects—Would this location provide recreational opportunities? Would choosing this location destroy
any existing recreational opportunities or local livelihoods? What are the current land uses in the area? How
would they infuence the wetland and how would they be infuenced by the wetland?
• Policy—Consider political boundaries, both state and local. What role could political boundaries play in
decision making?
• Further information needed—What additional information is needed on this location to make a sound
recommendation?
You are allowed to use the Internet and class notes to look up information on your location, restoration techniques, or
to fnd supporting documentation for your recommendations. 60 minutes
Activity 2 – Presentation
One at a time, each group will present the pros and cons of their assigned location, conclude with their
recommendation on whether or not that site should be considered, and then answer questions from the other group
members. After all the locations have been presented to the class, each task force must choose what they think is the
ideal location to recommend to the NPS Director. 60 minutes
Activity 3 – Recommendation
Each task force will produce a concise 1- to 2-page letter providing a clear recommendation of dredge placement to
the NPS Director (class instructor). Te letter should summarize and critically analyze all of the location options and
explain why one is recommended over the others. In addition, describe the trials and successes of wetland creation
that managers of the recommended location may anticipate. Be creative in your recommendations, but also realistic.
After your letter is complete, you will have the opportunity to present your recommendation to the NPS Director and
answer any questions from your classmates. Class will end with the story of how this real-life situation was actually
resolved. 45 minutes

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