DARLING RIVERINE PLAINS BIOREGION Background Report

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16/08/02 Darling Riverine Plains Bioregion Background Report Groundwater management plans (GMPs) are being developed for areas of significant groundwater use or where groundwater resources require protection. The preparation of GMPs for specific areas and aquifers has been prioritised based on a risk assessment undertaken by DLWC, and is being managed by the Great Artesian Basin, Gwydir, Macquarie, and Namoi groundwater management committees within the DRP (EPA 2000). RMCs within the DRP are required to produce water sharing plans (Table 8.7). These plans are designed to establish environmental water rules, requirements for basic landholder rights, requirements for water extraction under access licences, and bulk access regimes for extraction licences (which determines how much water will be available for extraction by licensed water users) (DLWC 2001a). (DLWC 2001a) Water management area Central West Gwydir Table 8.7 Water sharing plans being prepared within the DRP Water management committee (MC) Type of water source Water source for which a water sharing plan is being prepared Macquarie Cudgegong River MC Regulated river Macquarie- Cudgegong Rivers Central West Unregulated Streams MC Subcatchment Castlereagh River above Binnaway Macquarie Groundwater MC Groundwater Lower Macquarie aquifer Gwydir River (Regulated) River MC Regulated river Gwydir River Gwydir Unregulated River MC Subcatchment Upper Horton River, Lower Horton River, Cobbodah Creek, Rocky Creek Gwydir Groundwater MC Groundwater Gwydir aquifer Namoi Namoi Regulated River MC Regulated river Namoi River Namoi Unregulated River MC Subcatchment Phillips Creek, Mooki River, Quirindi Creek, Warrah Creek Namoi Groundwater MC Groundwater Upper Namoi aquifer, Lower Western, Border Great Artesian Basin Groundwater MC Groundwater Namoi aquifer Great Artesian Basin Rivers, Gwydir, Namoi, Central West 8.3.5 Regional Vegetation Management Plans Regional Vegetation Committees (RVCs) are responsible for producing Regional Vegetation Management Plans. Through the RVCs these plans enable communities to develop their own localised plans which deal with the native vegetation issues most affecting their region, such as native vegetation conservation, viability of agricultural production, dryland salinity and the conservation of native species (NSW Govt. 1999). RVCs are governed by the NVC Act, 1997 and are coordinated through DLWC. By November 2001, the Mid-Lachlan RVC was the only RVC within the DRP that had completed a Regional Vegetation Management Plan. All other RVC’s within the DRP have Regional Vegetation Management Plans in varying stages of development. 144
16/08/02 Darling Riverine Plains Bioregion Background Report 8.3.6 Salinity Management Plans The New South Wales Salinity Strategy (DLWC 2000) has established a series of targets aimed at reducing the effects of salinity in the state. A river-based end-of-valley salinity target program has been established to monitor overall salinity conditions. Six of these are located within the DRP. They are on the: Namoi River at Goangra; Macintyre River at Mungindi; Gwydir River near Collarenebri; Macquarie River at Carinda; Bogan River at Gongolgon; and Barwon-Darling River at Menindee. These end-of-valley salinity targets will measure the cumulative impact of past actions and the effects of future actions across each valley. Some of the management targets will include: no net loss of vegetation; revegetation of 20% of salt affected land; revegetation of 30% of recharge areas; introduction of deep rooted perennial pastures on 20% of pastures; development of and adherence to mid-catchment salinity targets to protect wetlands; changes in a variety of farming practices; and engineering solutions. A variety of pilot projects and government initiatives have been proposed and recommended as a part of the New South Wales salinity strategy. 8.4 AREAS OF BIOLOGICAL SIGNIFICANCE 8.4.1 Key areas Twenty key conservation areas and two corridors within the DRP were identified by Morgan and Terry (1992). Five of these are mainly located in adjoining bioregions but extend into the DRP. These areas cover 5 040 km 2 and are: Key area 1: Cowal State Forest (~ 500 ha) - the largest forested area remaining in the southern part of the Bogan-Macquarie province; Key area 2: A western extension of the northern section of the Macquarie Marshes Nature Reserve, containing Flindersia maculosa and Acacia pendula woodlands, in the Bogan- Macquarie province (350 km 2 ); Key area 3: Overlapping the boundary of the Bogan-Macquarie and Castlereagh-Barwon provinces, incorporating wetlands on a tributary of the Castlereagh and Eucalyptus populnea subsp. bimbil ridge country (270 km 2 ); Corridor: A major corridor along the Macquarie River downstream of Warren, connecting the Macquarie Marshes with Narran Lakes including the most reliable riverine environment in the sub-region; Key area 4: On the lower floodplain and channels of the Barwon River below Collarenebri, and including some higher areas of grey clays, in the Castlereagh-Barwon province (440 km 2 ); 145
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DARLING RIVERINE PLAINS BIOREGION B
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For more information data contact t
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3.2 Vegetation Mapping and Descript
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10 APPENDICES 166 A CLIMATIC DATA B
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List of Maps Chapter 1 Map 1 Locati
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PROJECT SUMMARY This report forms p
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abbits are listed as key threatenin
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ainfall (mm) 900 800 700 600 500 40
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Family Scientific Name cretica Comm
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APPENDIX E: Fauna Other than Those
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Common Name Scientific Name No Reco
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Common 1983 1984 1985 1986 1987 198
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Common Name 1983 1984 1985 1986 198
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Taxa No Records Dataset Class Arach
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Taxa No Records Dataset Tabanidae s
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Taxa No Records Dataset Berosus sp
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DARLING RIVERINE PLAINS BIOREGION Background Report

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