05/08/17 - Laserfiche WebLink

Home

City of Ramsey February 12, 2007 Functional Assessment of Wetlands Functional RatingsFunctional Index Score Exceptional:1.01 – 2.00 High:0.66 – 1.00 Medium: 0.33 – 0.65 Low:0.10 – 0.32 WETLAND MANAGEMENT CLASSIFICATION SCHEMA The MnRAM 3.0 assessment provides a basis for developing wetland management classifications. The functional indices from wetlands assessed are used to assign a recommended management class. Using BWSR’s recommended system of management classification, wetlands are classified into one of four categories: Preserve, Manage 1, Manage 2, or Manage 3. Preserve Wetlands placed in the Management Classification have at least one of the following characteristics: Wetlands rated with exceptional vegetative diversity/integrity, which may include wetlands with natural communities not significantly impacted by invasive species or other human-induced alterations, wetlands harboring endangered or threatened plant species, or rare wetland habitats classified as imperiled (S1) or critically imperiled (S2) by the state rankings. Wetlands rated as exceptional for wildlife habitat. These include wetlands known to harbor endangered or threatened animal species, rare communities, or wildlife refuges and fish and wildlife management areas whose purpose is maintaining suitable habitats for wildlife. Wetlands rated as high for amphibian habitat. Wetlands rated as exceptional for fish habitat. These wetlands include those specifically managed for fish management; designated trout streams, lakes or adjacent wetlands; and known spawning habitat for game fish. Wetlands rated high for shoreline protection. Wide wetlands bordering lakes and feeder streams that have persistent, emergent, submergent, or floating-leaved vegetation are critical to protecting the water quality of the lakes from bank erosion and sedimentation from upstream. Wetlands rated exceptional for aesthetics/education/recreation/cultural and rated high for wildlife habitat, include those located on public lands that provide a unique or rare recreational, educational, or cultural opportunity, and have high functional level for wildlife since that is typically a primary focus for users. Wetlands that are exceptionally sensitive to stormwater impacts and have a vegetative diversity/integrity rating of medium or higher were also placed in this category. These wetlands may have suffered some degradation from human influences due to 4