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Kowmung River Subcatchment

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Kowmung River Subcatchment Appendix 4.2 Appendix Kowmung River Kowmung Subcatchment summaries Subcatchment Kowmung River Subcatchment River Kowmung The Kowmung River is fed by the tributaries of Tuglow and Hollanders Rivers and Browns Creek. Approximately 70% of the catchment is protected within the Blue Mountains and Kanangra Boyd National Parks, part of the Greater Blue Mountains World Heritage Area. The headwaters of the tributary rivers are located in State Forests, much of them characterised by pine plantations which are under an active harvest regime. The Kowmung River is considered to be in mostly near intact condition, however the tributaries have been subjected to agricultural and forestry development, which have caused erosion and vegetation degradation. The Boyd Plateau Bogs (including Little Dingo Swamp, Wheengee Whungee Swamps, Little Morong Bog and Roly Whalans Swamp, amongst others) are located within the Kowmung River subcatchment and form part of the Endangered Ecological Community (EEC) known as the Montane Peatlands and Swamps. HAWKESBURY NEPEAN RIVER HEALTH STRATEGY 43 44 44 Reach Management Recommendations – Kowmung River Subcatchment Reach Name Reach Riparian Land Reach Values Reach Threats Reach management recommendations Description Management (Planning, Education, Works, Monitoring, Institutional) Category Tuglow R1 From Shooters Assisted • Good riparian vegetation • Damaging access (stock) • Management of stock impacts on waterways (W) Hill (on Shooters Regeneration • Barriers to ecosystem functioning • Encourage adoption of sustainable land management Hill Rd 25km practices in riparian lands (E) HAWKESBURY NEPEAN CATCHMENT MANAGEMENT AUTHORITY MANAGEMENT NEPEAN CATCHMENT HAWKESBURY HAWKESBURY NEPEAN CATCHMENT MANAGEMENT AUTHORITY MANAGEMENT NEPEAN CATCHMENT HAWKESBURY south of Oberon) • Aquatic habitat condition and connectivity improvement to Tuglow Forest (P,W) Road. Part of • Increase community capacity for environmental the reach runs restoration (E) through Gurnang State Forest. Tuglow R2 From Tuglow Assisted • Good riparian vegetation • Damaging access – stock • Management of stock impacts on waterways (W) Forest Road to Regeneration • Barriers to ecosystem functioning • Encourage adoption of sustainable land use practices in end of gorge (at riparian lands (P,E) end of series of • Aquatic habitat condition and connectivity improvement winding bends) (P,W) approximately, • Increase community capacity for environmental adjacent to restoration (E) furthermost extension of Jaunter Rd at ‘yards’. Tuglow R3 From end of Assisted • Good riparian vegetation cover • Damaging access (stock) • Management of stock impacts on waterways (W) Gorge to Reedy Regeneration • Signifi cant irrigation water supply • Encourage adoption of sustainable land management Creek confl uence. practices in riparian lands (E) • Increase community capacity for environmental restoration (E) Tuglow R4 From Reedy Assisted • Good riparian vegetation • Damaging access (stock) • Management of stock impacts on waterways (W) Creek confl uence Regeneration • Good river condition • Pest animals • Encourage adoption of sustainable land use practices in to confl uence • World Heritage Area (on southern • Sediment impacts from upstream riparian lands (P,E) with Hollanders bank for half of reach) • Pest animal management in riparian zone (P,W) River (change to • Increase community capacity for environmental Kowmung River). restoration (E) • Develop conservation management agreements to protect remnant riparian vegetation (P) HAWKESBURY NEPEAN RIVER HEALTH STRATEGY NEPEAN RIVER HEALTH HAWKESBURY Reach Management Recommendations – Kowmung River Subcatchment Reach Name Reach Riparian Land Reach Values Reach Threats Reach management recommendations Description Management (Planning, Education, Works, Monitoring, Institutional) Category Hollanders R1 From Headwater Assisted • Good riparian vegetation • Damaging access – stock • Management of stock impacts on waterways (W) to Budthingeroo Regeneration • Barriers to ecosystem functioning • Encourage adoption of sustainable land use practices in Ck. • Headwaters incising contributing sediment to riparian lands (P,E) river below • Aquatic habitat condition and connectivity improvement (P,W) • Channel bed or bank stabilisation works (W) • Rural water quality and sediment management (W) • Increase community capacity for environmental restoration (E) Hollanders R2 Budthingeroo Assisted • Good riparian vegetation • Barriers to ecosystem functioning. • Aquatic habitat condition and connectivity improvement Ck to confl uence Regeneration • Good river condition • Sediment impacts from upstream – barriers to fi sh passage (P,W) with Tuglow River • World Heritage Area • Willows and pine wildings possible future threat • Removal/replacement of exotic vegetation (P,W) (where it turns • Increase community capacity for environmental into Kowmung • Identifi ed Flagship Species (World restoration (E) River). Heritage Area) • Develop conservation management agreements to protect remnant riparian vegetation (P) Browns Ck R1 Headwaters in Revegetation • Damaging access (forestry) • Revegetation with indigenous riparian vegetation (W) pine plantations • Barriers to ecosystem functioning • Aquatic habitat condition and connectivity improvement to drop over (P,W) plateau. • Increase community capacity for environmental restoration (E) Browns Ck R2 Tributary to Revegetation • Damaging access – stock • Management of stock impacts on waterways (W) Tuglow River. • Barriers to ecosystem functioning • Encourage adoption of sustainable land management Northern practices in riparian lands (E) riverbank travels • Aquatic habitat condition and connectivity improvement alongside (P,W) Gurnang State • Increase community capacity for environmental Forest. restoration (E) • Revegetation with indigenous riparian vegetation (W) Near Intact reaches within Reserved Lands: Kowmung R1. 45 Appendix 4.2 Subcatchment summaries Kowmung River.
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