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MURRAY–DARLING BASIN AUTHORITY Chowilla Floodplain Environmental Water Management Plan

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MURRAY–DARLING BASIN AUTHORITY Chowilla Floodplain Environmental Water Management Plan MURRAY–DARLING BASIN AUTHORITY Chowilla Floodplain Environmental Water Management Plan February 2012 Chowilla Floodplain Environmental Water Management Plan February 2012 Murray–Darling Basin Authority © Copyright Murray‑Darling Basin Authority (MDBA), murray–darling Basin authority on behalf of the Commonwealth of Australia 2012. Postal Address: GPO Box 1801, Canberra ACT 2601 This work is copyright. With the exception of Office location: Level 4, 51 Allara Street, photographs, any logo or emblem, and any Canberra City, Australian Capital Territory trademarks, the work may be stored, retrieved and reproduced in whole or in part, provided that it is not Tel: (02) 6279 0100, international + 61 2 6279 0100 sold or used in any way for commercial benefit, and Fax: (02) 6248 8053, international + 61 2 6248 8053 that the source and author of any material used is E‑mail: [email protected] acknowledged. Website: http://www.mdba.gov.au Apart from any use permitted under the Copyright Act For further information contact the Murray–Darling 1968 or above, no part of this work may be reproduced Basin Authority office on (02) 6279 0100 by any process without prior written permission from the Commonwealth. Requests and inquiries Cover image: Werta Wert Wetland, Chowilla Floodplain concerning reproduction and rights should be Photographer: Arthur Mostead © MDBA addressed to the Commonwealth Copyright Administration, Attorney General’s This report may be cited as: Chowilla Floodplain: Department, National Circuit, Barton ACT 2600 Environmental Water Management Plan 2012 or posted at http://www.ag.gov.au/cca. MDBA Publication No. 220/11 The views, opinions and conclusions expressed by ISBN (on‑line) 978‑1‑921914‑76‑8 the authors in this publication are not necessarily ISBN (print) 978‑1‑921914‑77‑5 those of the MDBA or the Commonwealth. To the extent permitted by law, the MDBA and the Commonwealth excludes all liability to any person for any consequences, including but not limited to all losses, damages, costs, expenses and any other compensation, arising directly or indirectly from using this report (in part or in whole) and any information or material contained within it. Australian Government Departments and Agencies are required by the Disability Discrimination Act 1992 (Cwlth) to ensure that information and services can be accessed by people with disabilities. If you encounter accessibility difficulties or the information you require is in a format that you cannot access, please contact us. ii Chowilla Floodplain EnvironmEntal watEr managEmEnt plan Contents About this plan ............................................................................................................................................................................................................................................................................................ 1 Summary ............................................................................................................................................................................................................................................................................................................ 2 1. Introduction .................................................................................................................................................................................................................................................................................. 4 The Living Murray .............................................................................................................................................................................................................................................................. 4 The Living Murray icon site environmental water management plans ................................................................................................... 5 Planning context and legislation framework ................................................................................................................................................................................ 5 Agreements.................................................................................................................................................................................................................................................................................. 6 Commonwealth legislation..................................................................................................................................................................................................................................... 6 South Australian legislation .................................................................................................................................................................................................................................. 7 New South Wales legislation .............................................................................................................................................................................................................................. 7 Governance and planning arrangements ........................................................................................................................................................................................... 8 Management of the Chowilla Floodplain icon site ................................................................................................................................................................. 8 2. Icon site description .....................................................................................................................................................................................................................................................11 Land tenure ...............................................................................................................................................................................................................................................................................12 Description of icon site key ecological assets ..........................................................................................................................................................................13 Icon site values ...................................................................................................................................................................................................................................................................13 Indigenous values .............................................................................................................................................................................................................................................................15 European values .................................................................................................................................................................................................................................................................15 Economic values .................................................................................................................................................................................................................................................................16 Cultural economy ..............................................................................................................................................................................................................................................................16 3. Ecological objectives and water requirements ........................................................................................................................................................................17 Water requirements ......................................................................................................................................................................................................................................................18 Climate and rainfall in the Murray–Darling Basin ..............................................................................................................................................................19 Baseline condition ...........................................................................................................................................................................................................................................................22 Current condition ..............................................................................................................................................................................................................................................................22 Antecedent hydrological conditions ........................................................................................................................................................................................................23 4. Water delivery ........................................................................................................................................................................................................................................................................24 Prioritisation of water
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