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8132 - NPCA SNF Watershed Report.indd - Niagara Peninsula ...

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APPENDIX FHABITAT: RIPARIANCRITERIA:PROXIMITY TO WATERCOURSE/WATERBODY( edgedr )3 ≤ 30m2 > 30m & < 50m1 ≥ 50mCRITERIA: LAND USE TYPE( lurwood )3 Woodland, Wetland, Scrub,Low Intensity Agriculture2 Recreational, Residential,High Intensity Agriculture1 Industrial, Built Up UrbanCRITERIA: SLOPE( slopedr )3 ≥ 10 degrees2 < 10 degrees1 0 degreesCRITERIA: FISH HABITAT CLASSIFICATIONOF CATCHMENT( catchfhr )3 Critical2 Important1 MarginalCRITERIA: STREAM ORDER OF CATCHMENT( catchsor )3 intermittent flow( 1st & 2nd order)2 intermittent / permanent flow(3rd order)1 permanent flow(> 3rd order)CRITERIA: FOREST COVER( coverwor )3 woodland not present2 planting site1 woodland presentRESTORATION SUITABILITY CRITERIA: RIPARIAN HABITATRATIONALE METHODOLOGY REFERENCEAreas within closest proximity to watercoursesor waterbodies will be most suitable torestoration. These areas contribute to bothriparian buffer and floodplain. Restoration inthese areas will improve hydrological, habitatand water quality functions.Generate straight line distance surface fromwatercourses and waterbodies. Reclassifysurface values where lowest distanceshave highest suitability values, reflectingriparian and floodplain location.<strong>Niagara</strong> River AOC RAPRiparian HabitatGuidelinesIn terms of potential conflict, existing land usetype is scaled in terms of suitability torestoration. Areas classified as scrub, lowintensity agriculture, or natural are much moresuitable to restoration than areas classified asindustrial or built-up urban.Generate Land Use surface on Land UseType value. Reclassify Land Use values wherelow conflict land use types have highersuitability values than high conflict landuse types.<strong>Niagara</strong> <strong>Peninsula</strong>Conservation AuthorityConsiders the presence of vegetation in termsof hydrological and mechanical contributionto bank stability and erosion control. As slopeincreases, restoration suitability increases.Generate slope surface from DEM. Reclassifysurface where higher slope values have highersuitability values.<strong>Niagara</strong> <strong>Peninsula</strong>Conservation AuthorityCatchments which drain to watercoursesclassified as Fish Habitat are considered moresuitable, as restoration projects will contributeto food, shelter, temperature moderation andoxygen production.Generate surface from catchment polygons onfish habitat classification value. Reclassifyvalues according to restoration suitability.<strong>Niagara</strong> <strong>Peninsula</strong>Conservation AuthorityCatchments which drain to watercourses inheadwater streams are considered moresuitable for restoration than those that drain tohigher ordered streams in terms of waterquality improvement.Generate surface from catchment polygons onstream order value. Reclassify valuesaccording to restoration suitability.<strong>Niagara</strong> River AOC RAPRiparian HabitatGuidelinesIt is more suitable to restore habitat wherevegetation does not presently exist, or whereinfilling may be necessary from a previousrestoration project.Generate surface from natural vegetationpolygons based on vegetation type.Reclassify cells lacking forest cover as highestsuitability values.<strong>Niagara</strong> River AOC RAPRiparian HabitatGuidelines

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