b'WETLANDS RESTORATIONTYPICAL SMALL WETLAND DESIGNSmall wetland design PLAN VIEW Seasonal drainage: unimpeded from uplands considerations Ducks Unlimited CanadaDeeper areaDeeper area (max. depth: 1.5m) inflow(max. depth: 1.5m) Wetland average depth: 0.3 -1.0mSpoil placement adjacent: graded with minimum 3:1side slopes with topsoil and seeded for erosion controlCROSS-SECTION VIEWSide slope gradient: 10:1-15:1 is best1.5m 1.5mHabitat for species at risk: A study led by Birds Canada, a nationalOther benefits:leader in bird populations and conservation planning, showed thatRelatively inexpensive to create (required equipment is often restoredwetlandsprovideexcellenthabitatforbirdsandfrogs.already on site)Records from longstanding seasonal observations detected many species at risk, including black terns, least bitterns and westernAttractive showcase sites (mature quickly and easy to monitor chorus frogs. Wetlands are also needed to help recover Ontariosusing citizen science)endangered turtles.Draws community investment and supportEcosystemrestorationtooffsethistoricloss:Habitat restoration helps to offset the ongoing loss of wetland, aquatic andCarbon sequestrationupland habitats in southern Ontario. Wetlands are one of the most important ecosystems on the planet, yet we are losing wetlands atUnique investment: When you do business with Ducks Unlimited three times the rate of forests. Canada, you invest twice: once to meet your conservation needs andoncetosupportevenmorehabitatrestorationinOntario. Thats because our consulting branch in Ontario operates on a cost-recoverybasiswithnetrevenuesdirectedtoconservation programs.Ourcommunicationsplatformsreachadedicated conservation audience with stories of conservation success that include recognition for all partners and participants.TEC Identifying and removing invasive plants:sites is to control TEC GENERAL DESIGN CONSIDERATIONSOften, the first step we GPStake in a wetland restoration plan for aggregate AERIAL invasive plants that have made their way onto the site. A commonly encountered invader is Phragmites australis, a non-native, towering reedthathasaprofoundlynegativeimpactonthesuccessof nativewildlife.30 AVENUESFALL 2020'