Technical Report No.1 - Mallee Lands (March 1988)

Holding Library Call Number
ISBN: 1031-8321??
Holding Library
Soil Conservation Service of NSW
Notes
This document is provided for general information or historical interest and may contain some information that is no longer accurate or up to date or does not represent current best practice. Readers are warned not to rely on this information alone, and should obtain their own advice before making any decisions.

Contents

RANGELAND REVIEW MALLEE LANDS 1
Soil Conservation Service 3
A REVIEW OF INFORMATION RELEVANT TO THE MALLEE RANGELANDS OF WESTERN NEW SOUTH WALES 5
EDITOR’S PREFACE 7
ACKNOWLEDGEMENTS 9
CONTENTS 10 , 11
1. INTRODUCTION 13 , 14
2. LOCATION AND LAND USE 2.1 LOCATION OF THE MALLEE LANDS IN AUSTRALIA 15
2.2 RELATIONSHIPS BETWEEN THE MALLEE LANDS OF N.S.W. AND THOSE OF OTHER STATES 15
2.3 LAND USE IN N.S.W. 16 , 17 , 18
3. THE PHYSICAL ENVIRONMENT (N.S.W.) 3.1 CLIMATE 3.1.1 Rainfall 19
3.1.2 Temperature and Humidity 19 , 20 , 21 , 22
3.1.3 Evaporation 23
3.1.4 Drought 23
3.1.5 Wind 23 , 24 , 25 , 26 , 27 , 28
3.1.6 Climate and Plant Growth 28
3.2 LANDFORMS 29
3.2.1 Main Landform Types 29 , 30 , 31
3.2.2 Drainage 31
3.3 SOILS 3.3.1 Main Soil Types 32 , 33 , 34 , 35 , 36 , 37
3.3.2 Physical and Chemical Properties 38 , 39 , 40
3.4 SOIL EROSION 40 , 41 , 42
4. VEGETATION 4.1 CLASSIFICATION OF THE VEGETATION 43 , 44 , 45 , 46
4.2 GENERAL RELATIONSHIPS 4.2.1 Occurrence of Species in the Mallee Lands 47 , 48
4.2.2 Occurrence of Other Vegetation Types in Mallee Lands 48 , 49
4.3 SPECIES LIST FOR THE MALLEE LANDS IN WESTERN N.S.W. 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60
5. TYPES OF MALLEE COUNTRY 5.1 INTRODUCTION 61
5.2 GEOGRAPHIC CLASSIFICATIONS 61 , 62
5.3 PHYSIOGRAPHIC CLASSIFICATIONS 62
5.4 LAND SYSTEMS 62 , 63
5.5 OTHER CLASSIFICATIONS 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74
6. ECOSYSTEM PROCESSES 6.1 INTRODUCTION 75
6.2 GENERAL INTERACTIONS 6.2.1 Growth and Productivity 75 , 76 , 77
6.2.2 Soil Water Store 77 , 78
6.2.3 Nutrient Cycling 78
6.2.4 Fate of Rainfall 78 , 79
6.2.5 Fire 79 , 80 , 81
6.2.6 Summary 81
6.3 RESPONSE TO CHANGES IN THE ENVIRONMENT 6.3.1 Response to Rainfall 82
6.3.2 Response to Grazing 82 , 83 , 84 , 85
6.3.3 Response to Fire 85 , 86 , 87
6.3.4 Response to Clearing and Cultivation 87 , 88 , 89 , 90
7. RANGELAND MANAGEMENT 7.1 CONSTRAINTS OF THE MALLEE RANGELANDS 91
7.1.1 Feed Suppression 91
7.1.2 Low Sheep Production 91
7.1.3 Mustering Difficulties 91
7.1.4 Watering Constraints 92
7.1.5 Vermin 92
7.1.6 Grass Seed 92
7.2 EXISTING MANAGEMENT 7.2.1 Stock Type 93
7.2.2 Stocking Rates 93
7.2.3 Grazing Systems 93 , 94 , 95
7.2.4 Clearing 95
7.2.5 Clearing and Cropping 96 , 97
7.3 ALTERNATIVE MANAGEMENT OPTIONS 7.3.1 Prescribed Burning 97 , 98 , 99 , 100
7.3.2. Other Options 101
8. DEGRADATION AND REHABILITATION 8.1 LAND DEGRADATION 8.1.1 Introduction 102
8.1.2 Soil Erosion in Mallee Rangelands 103
8.1.3 Salinisation in Mallee Lands 103 , 104 , 105 , 106
8.1.4 Pasture Deterioration in the Mallee Rangelands 107
8.2 REHABILITATION OF ERODED SOILS 107 , 108 , 109
8.3 REHABILITATION OF DEGRADED VEGETATION 109 , 110
9. REFERENCES 111 , 112 , 113 , 114 , 115 , 116 , 117 , 118 , 119 , 120 , 121 , 122 , 123 , 124 , 125 , 126 , 127
10. APPENDIX SPECIES OF THE MALLEE RANGELANDS OF N.S.W.: 128 , 129 , 130 , 131 , 132 , 133 , 134 , 135 , 136 , 137 , 138 , 139 , 140 , 141 , 142 , 143 , 144 , 145 , 146 , 147 , 148 , 149 , 150 , 151 , 152 , 153 , 154 , 155 , 156 , 157 , 158 , 159 , 160 , 161 , 162 , 163 , 164 , 165 , 166 , 167 , 168 , 169 , 170 , 171 , 172 , 173 , 174 , 175 , 176 , 177 , 178 , 179 , 180 , 181 , 182 , 183 , 184 , 185 , 186 , 187 , 188 , 189 , 190 , 191 , 192 , 193 , 194 , 195 , 196 , 197 , 198 , 199 , 200 , 201 , 202 , 203 , 204 , 205 , 206 , 207 , 208 , 209 , 210 , 211 , 212 , 213 , 214 , 215 , 216 , 217 , 218 , 219 , 220 , 221 , 222 , 223 , 224 , 225 , 226 , 227 , 228 , 229 , 230 , 231 , 232 , 233 , 234 , 235 , 236 , 237 , 238 , 239 , 240 , 241 , 242 , 243 , 244 , 245 , 246 , 247 , 248 , 249 , 250 , 251 , 252 , 253 , 254 , 255 , 256 , 257 , 258 , 259 , 260 , 261 , 262 , 263 , 264 , 265 , 266 , 267 , 268 , 269 , 270 , 271 , 272 , 273

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