Dealing with salinity in Wheatbelt Valleys - Department of Water

More documents

Recommendations

Info

esponse to town flooding. Over 100 kilometers of level banks were constructed and to date, similar rainfall events have not resulted in severe flooding in town. In 1986 drilling was commenced to look at salinity risk in the town and catchment. Like the Belka, watertables are rising at rates of 0.1-0.3 m/yr. However unlike the conclusions of Bettenay twenty years before, research in the mid-1980s and 90’s indicates there is a high salinity risk in the Merredin type valley, with groundwaters now within 3-5 m of the towns CBD. Salinity management has included a range of measures; tree planting and trial pumping and associated desalinisation and evaporation of water is planned. The bus tour will travel through areas in town likely to develop watertables within the root zone, including the conference venue. The route will allow discussions of the impact of the Department of agriculture Rural Towns Program, Shire and local community efforts. Travelling west, the bus will pass the Merredin town dams, revegetation areas where over 33,000 trees (for wood and water use) were planted in 1991, major CBH handling centre, Dryland Research Institute and proposed evaporation basins before returning to Merredin for the Civic Reception. A detailed set of notes on the Merredin section is available and several Conference papers will refer to engineering, salinity risk and resource opportunities for the use of saline groundwater (e.g. see Ali and Coles, George and Coleman, Jones and others). In addition maps of the Belka and Merredin catchment will be available at the Conference, showing present salinity and predictions of areas with a likely shallow watertable.
APPENDIX 3 MANAGING WATER AND SALINITY IN THE MERREDIN CATCHMENT Edited by Rosemary Nott (Hydrologist) Department of Agriculture Dryland Research Institute Merredin
Page 1 and 2:
Foreword Dealing with Salinity in W
Page 3 and 4:
1Day one: Monday 30th July. Field t
Page 5 and 6:
Papers Dealing with Salinity in Whe
Page 7 and 8:
Ali and Coles biggest challenges fa
Page 9 and 10:
Ali and Coles erosion, maintenance
Page 11 and 12:
Ali and Coles expected under these
Page 13 and 14:
Ali and Coles Coles, N.A. & Ali, M.
Page 15 and 16:
Commander, Schoknecht, Verboom and
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
APPRECIATING AND CREATING OUR HISTO
Page 43 and 44:
services. The Government responded
Page 45 and 46:
WHEATBELT VALLEYS IN DIFFICULTIES T
Page 47 and 48:
argue that they were really abnorma
Page 49 and 50:
1990s, the wheatbelt valleys in par
Page 51 and 52:
REFERENCES Agstats (1997). Agricult
Page 53 and 54:
George and Coleman two to four fold
Page 55 and 56:
George and Coleman surface, the vas
Page 57 and 58:
George and Coleman for example in t
Page 59 and 60:
George and Coleman current trends c
Page 61 and 62:
George and Coleman While not as div
Page 63 and 64:
George and Coleman SPECIES Table 5:
Page 65 and 66:
George and Coleman advantages of so
Page 67 and 68:
George and Coleman this volume). In
Page 69 and 70:
George and Coleman Venture Economy
Page 71 and 72:
George and Coleman Lawrence, C. (19
Page 73 and 74:
Hatton and Ruprecht WATCHING THE RI
Page 75 and 76:
Since the mid 1970s annual rainfall
Page 77 and 78:
Effect of clearing on runoff The ot
Page 79 and 80:
Salinity Monthly streamflow (ML) 10
Page 81 and 82:
The ratio of the salt outputs to in
Page 83 and 84:
- 11 - Hatton and Ruprecht Table 4:
Page 85 and 86:
THE FUTURE In looking at the future
Page 87 and 88:
McFarlane, D.J., George, R.J. & Far
Page 89 and 90:
Keighery, Halse and McKenzie Terres
Page 91 and 92:
Keighery, Halse and McKenzie Wetlan
Page 93 and 94:
Keighery, Halse and McKenzie specie
Page 95 and 96:
Keighery, Halse and McKenzie enviro
Page 97 and 98:
Lloyd number of legal cases pending
Page 99 and 100:
Lloyd 0 -500 -1000 -1500 -2000 -250
Page 101 and 102:
Lloyd Table 3. Sheep grazing days i
Page 103 and 104:
Lloyd Hectares project to provide w
Page 105 and 106:
INTRODUCTION The Lake Chinocup Catc
Page 107 and 108:
agriculture) in various stages, the
Page 109 and 110:
- 3,477 ha of remnant vegetation or
Page 111 and 112:
Scientists talk of up to 30% of the
Page 113 and 114:
6320000 6300000 6280000 6260000 624
Page 115 and 116:
Although the waterlogged area under
Page 117 and 118:
eliminates drainage through the nex
Page 119 and 120:
REFERENCES Dawes, W.R., Stauffacher
Page 121 and 122:
Pannell ECONOMICS, SOCIETY AND ENVI
Page 123 and 124:
Pannell • the area of land protec
Page 125 and 126:
Pannell Proposals to construct majo
Page 127 and 128:
Pannell been conducted for the Cent
Page 129 and 130:
Pannell investments in long-term la
Page 131 and 132:
Pannell Pannell, D.J. (2001). Dryla
Page 133 and 134:
Porter, Bartle and Cooper Table 1:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Porter, Bartle and Cooper operation
Page 141 and 142:
Porter, Bartle and Cooper Increase
Page 143 and 144:
Page 145 and 146:
Porter, Bartle and Cooper support i
Page 147 and 148:
Porter, Bartle and Cooper that is a
Page 149 and 150:
CASE STUDY - TOOLIBIN LAKE AND CATC
Page 151 and 152:
• The distribution, storage and m
Page 153 and 154:
Secondly, there is a set of practic
Page 155 and 156: within three categories: relationsh
Page 157 and 158: CONCLUSIONS Actions to protect and
Page 159 and 160: FIELD TOUR LOCATIONS FIELD TOUR NOT
Page 161 and 162: COLES FARM “Avon River Basin Over
Page 163 and 164: Conference Outcomes Dealing with Sa
Page 165 and 166: with Salinity in Wheatbelt Valleys:
Page 167 and 168: with Salinity in Wheatbelt Valleys
Page 197 and 198: Photo Gallery 2 Dealing with Salini
Page 199 and 200: APPENDIX 1 BACKGROUND HYDROLOGY AND
Page 201 and 202: WHEATBELT HYDROLOGY Flow in the Yil
Page 203 and 204: Flow (ML) STREAM SALINITY Salt Rive
Page 205: APPENDIX 2 WATER MANAGEMENT OPTIONS
Page 209 and 210: SUMMARY- TIMELINE OF RECENT SIGNIFI
Page 211 and 212: RECENT HISTORY OF WATER AND SALINIT
Page 213 and 214: Figure 1. Hydrological cross-sectio
Page 215: Depth (m) 316 315 314 313 312 311 M
Page 218 and 219: FURTHER INVESTIGATIONS AND MANAGEME
show all

Dealing with salinity in Wheatbelt Valleys - Department of Water

Create successful ePaper yourself

Delete template?

Save as template?