Assessing the Use of Shrub-Willows for Living Snow Fences in Minnesota
Blowing and drifting snow adversely affect winter driving conditions and road infrastructure in Minnesota, often requiring removal methods costly to the state and environment. Living snow fences (LSFs)—rows of trees, shrubs, grasses, or standing corn installed on fields upwind of roadways—are economically viable solutions for controlling drifting snow in agricultural areas. Despite incentives and financial assistance by state and federal agencies, farmer adoption of LSFs is low, in part due to concerns about removing cropland from production. Of recent interest in Minnesota is the use of shrub-willows (Salix spp.) for LSFs, as they have been successfully implemented for LSFs in other states and are researched increasingly as a marketable biomass product for bioenergy production. To evaluate the potential of willow LSFs for multiple benefits in Minnesota, the authors established studies in Waseca, Minnesota, 1) to test different designs of willow LSFs in their ability to trap snow, 2) to compare the growth of willow varieties to willows native to Minnesota and other species traditionally used in LSFs, and 3) to assess the costs of planting and establishing a willow snow fence and the viability of biomass harvest. The authors found all shrubs to have generally high survival rates, with willows tending to have higher growth than traditional LSF shrubs. Additionally, willow LSFs may have the potential to trap all blowing snow at the study site as soon as three to four years after planting. This may provide earlier road protection than other shrub species traditionally used in LSFs. Regarding economics, willows can provide affordable LSFs relative to traditional LSF species, although harvesting for biomass may only be appropriate for very long transportation corridors.
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- Summary URL:
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Corporate Authors:
University of Minnesota, Twin Cities
Center for Agriculture, Food and Natural Resources - Extension
277 Coffey Hall, 1420 Eckles Avenue
St. Paul, MN United States 55108Minnesota Department of Transportation
Research Services Section, 395 John Ireland Boulevard, Mail Stop 330
St Paul, MN United States 55155 -
Authors:
- Zamora, Diomy S
- Ogdahl, Eric
- Wyatt, Gary
- Smith, David J
- Johnson, Gregg
- Current, Dean
- Gullickson, Dan
- Publication Date: 2015-11
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Final Report
- Features: Appendices; Figures; Photos; References; Tables;
- Pagination: 99p
Subject/Index Terms
- TRT Terms: Biomass; Costs; Evaluation and assessment; Shrubs; Snow and ice control; Snow fences
- Uncontrolled Terms: Living snow fences
- Geographic Terms: Minnesota
- Subject Areas: Environment; Highways; Maintenance and Preservation; I15: Environment; I62: Winter Maintenance;
Filing Info
- Accession Number: 01583557
- Record Type: Publication
- Report/Paper Numbers: MN/RC 2015-46, CTS # 2014007
- Contract Numbers: (c) 99008 (wo) 120
- Files: TRIS, ATRI, STATEDOT
- Created Date: Dec 23 2015 8:11AM