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15-16-18 Mile Creek - Niagara Peninsula Conservation Authority

15-16-18 Mile Creek - Niagara Peninsula Conservation Authority

APPENDIX

APPENDIX E

APPENDIX E HABITAT: WETLAND CRITERIA: STREAM ORDER OF CATCHMENT ( catchsor ) 3 intermittent flow ( 1st & 2nd order) 2 intermittent / permanent flow (3rd order) 1 permanent flow (> 3rd order) CRITERIA: WETNESS INDEX (TOPOGRAPHIC POSITION/SLOPE) ( wetindr ) 3 high (10-21) 2 mid (5-10) 1 low (0-5) CRITERIA: FOREST COVER ( coverwer ) 3 Forest cover present 2 Planting site present 1 Forest cover present CRITERIA: PROTECTED AREA ( careasdr ) 3 within conservation area boundary 2 ≤ 30m from conservation area boundary 1 > 30m from conservation area boundary RESTORATION SUITABILITY CRITERIA: WETLAND HABITAT RATIONALE METHODOLOGY REFERENCE Catchments which drain to watercourses in headwater streams are considered more suitable for restoration than those that drain to higher ordered streams in terms of water quality improvement. Generate surface from catchment polygons on stream order value. Reclassify values according to restoration suitability. Niagara River AOC RAP Wetland Extent Guidelines The wetness index equation predicts zones of water saturation where steady-state conditions and uniform soil properties are assumed. It is a function of upslope contributing area and slope gradient. Areas of highest W.I. values are most suitable to wetland restoration. Generate wetness index surface from slope gradient and flow accumulation. Reclassify surface where highest Wetness Index values have highest suitability values. Niagara Peninsula Conservation Authority Where forest cover is already present, restoration is more suitable, particularly in terms of the establishment of swamp habitat. Generate surface from woodland polygons. Reclassify values according to suitability value. Niagara Peninsula Conservation Authority Areas within C.A. boundaries are protected from development pressure and destruction. Areas in close proximity to these boundaries are more suitable to restore in terms of establishing connectivity. Generate straight line distance surface from Conservation Area boundary polygons. Reclassify surface values according to restoration suitability. Niagara Peninsula Conservation Authority

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