220 likes | 315 Views
The Need to Protect our Valuable Wetland Resources from Fragmentation Itasca County, MN. By Michael R. Kreutzer University of Saint Thomas Geography Department. Background. Forest Legacy Program: Protects Forests Uses Federal & Local Funds Conservation Easements
E N D
The Need to Protect our Valuable Wetland Resources from FragmentationItasca County, MN By Michael R. Kreutzer University of Saint Thomas Geography Department
Background • Forest Legacy Program: • Protects Forests • Uses Federal & Local Funds • Conservation Easements • Landowner Continues Ownership • Can Continue to Use Forest Amenities • Timber management • Recreation • Hunting • Etc. Photo and Commentary Courtesy Of Minnesota Division of Natural Resources
Forest Legacy Cont. • FLEET • Forest Legacy Ecological Evaluation Tool • GIS processes used to develop project • Based on DNR research for Forest Legacy Project.
Why So Important? • Fragmentation: • The process by which large areas of land are divided and isolated creating broken habitats and loss of biodiversity. Photo Courtesy of www.forestbiodiversityinbc.ca/
Fragmentation Cont. • Some Important Notes on Fragmentation • Fragmentation Occurs Naturally • Geology • Fire • Disease (Drought, Insects) • Etc. • Some Species Do Benefit from Fragmentation • Edging Effect Photo Showing Edging Along Wildfire. Courtesy of www.northernlattitude.com
Main Concerns About Fragmentation • Human Influenced Fragmentation is Threatening Our Valuable Environments • Natural Processes are Being Disrupted • We Do Not Fully Understand the Implications of Our Impact • What We Do Understand is Mostly Negative Photo Showing the Effects of Clear Cutting a Forest For the Construction Of a Highway in Canada Courtesy of Friends of the Rouge Watershed: www.frw.ca/rouge
Purpose of The Project • How does fragmentation affect valuable water resources? • Simple Answers: • Fragmentation often leads to the mass reduction of or clear cutting of trees and forest • Soil erosion, sedimentation, loss of biodiversity occurs • Fragmentation often introduces development, resulting in pollution and unhealthy runoff • Can lead to severe economic consequences
So Why is the Water Issue So Important? • Lakes, Rivers, Streams • Wetlands 1) Water Storage • Act as sponges, storing and slowly releasing water • Slows water movement, reducing flood potential and erosive properties • Helps manage flow properties; especially during heavy wet or dry periods. • Economic Impact: Reduces costs of water treatment and potential flood damage
Wetlands Cont. • Wetlands 2) Water Filtration • Slows water down • Allows for particles to settle • Plants capture and filter sediment • Pollutants such as fertilizers and sewage are absorbed by plant roots and soils Photo Courtesy of http://www.departments.bucknell.edu/geography
Wetlands Cont. • Wetlands 3) Biodiversity • 43% of threatened or endangered species in U.S. rely on wetlands. • Home to millions of species of aquatic plants, insects, fish, foul, and other wildlife. Photo Courtesy of Mark Sharp: WWW.Atlas.Keystone.edu
Wetlands Cont. • Wetlands 4) Recreation • Wetlands provide a great place to • Hunt • Fish • Canoe • Explore our natural world • Educate Photo showing a class being taught at a wetlands site. Courtesy of depts.washington.edu/wpa/youthfami.htm
Wetlands Cont. • Something to Consider • Wetlands present in 1850:18.6 million acres • Wetlands present in 2003:9.3 million acres • EPA DID YOU KNOW? • In 1991 wetland-related ecotourism activities such as hunting, fishing, bird-watching, and photography added approximately $59 billion to the national economy. • According to the Pacific Coast Federation of Fishermen’s Associations, almost $79 billion per year is generated from wetland-dependent species, or about 71 percent of the nation’s entire $111 billion commercial and recreational fishing industry in 1997. • An acre of wetland can store 1–1.5 million gallons of floodwater. • Up to one-half of North American bird species nest or feed in wetlands. • Although wetlands keep only about 5 percent of the land surface in the conterminous United States, they are home to 31 percent of our plant species.
Research Question • How Do We Find Areas of Pristine Water Resources In Itasca County and Protect Them from Fragmentation?
Methodology • Used Fleet Model and Information from Minnesota Division of Natural Resources (DNR) • Created 2 Initial Continuums • Human Impact • Environmental Quality
Human Impact Continuum • Variables • Distance From • Development • Roads • Major Roads • Recently Logged Areas • Public Access to Water • Single Output Map Algebra • Results: • Areas of Brown = Heavy Human Impact • Areas of Green = Mild Human Impact
Environmental Quality Continuum • Variables • Proximity to • Wetlands • Streams • Lakes • Trout Streams • Single Output Map Algebra • Results: • Blue = Lakes/Streams • Green = High Environmental Quality • Brown = Low Environmental Quality
Habitat Continuum • Human Impact Continuum + Environmental Quality Continuum = Habitat Continuum • Habitat Continuum X (Habitat and In Holding + Fragmentation Parcels) = Habitat, In holdings, and Fragmentation • Results: Effects of Fragmentation
Final Step • Isolated Habitat, In holdings, and Fragmentation Map to be Within Itasca County Floodplains • Why Floodplains? • Great example of a mix between environmental and economic concerns • Realistically, we must select feasible amounts of land to be changes. If we only have enough money for one acre, this provides a view as to how and where it should be spent.
Discussion • For any Questions, Comments, Concerns or if you would like information on nay further research please feel free to contact me by email at mrkreutzer@stthomas.edu • Thank You!
Informational Sources • http://www.epa.gov/owow/wetlands/pdf/fun_val.pdf • http://www.dnr.state.mn.us/water/index.html • http://files.dnr.state.mn.us/eco/wetlands/wetland_monitoring.pdf