Roadside Revegetation

TABLE OF CONTENTS
Figure 6-10 | Case Study – High elevation site 151
Figure 7-1 | Reference Site 1 154
Figure 7-2 | Reference Site 2 154
Figure 7-3 | Define limiting factors on the site 155
Figure 7-4 | List possible mitigating measures for limiting factors 155
Figure 7-5 | Case Study – Design potential revegetation strategies 158
Figure 7-6 | Case Study – Compare revegetation strategies 158
Figure 9-1 | Example implementation timeline 211
Figure 9-2 | Example contract 214
Figure 9-3 | Example of contract daily diary 218
Figure 10-1 | Threshold values of nitrogen 223
Figure 10-2 | Determining nitrogen needs 224
Figure 10-3 | Example of a fertilizer label for an “all purpose” fertilizer 225
Figure 10-4 | Reduced seed germination after exposure to fertilizer 228
Figure 10-5 | Example of calculating fertilizer application rates to reduce nitrogen 229
Figure 10-6 | Strategies for applying slow and fast release fertilizers 231
Figure 10-7 | Benefits of ripping and mulching vary by soil type 234
Figure 10-8 | Winged subsoiler 235
Figure 10-9 | Subsoiler tine and wing configurations determine effectiveness 236
Figure 10-10 | Subsoiling grapple rake 237
Figure 10-11 | Trackwalking compacts soils 238
Figure 10-12 | Soil imprinting with modified excavator bucket 238
Figure 10-13 | Long-fibered mulches 239
Figure 10-14 | Hydromulch 240
Figure 10-15 | Erosion mat 240
Figure 10-16 | Sheet mulch 241
Figure 10-17 | Mulch conserves soil moisture and inhibits weed establishment 241
Figure 10-18 | Different types and textures of mulches 242
Figure 10-19 | Large mulching operation 243
Figure 10-20 | Blowing equipment is used to apply mulch on steep slopes 245
Figure 10-21 | Field trials of species and materials 246
Figure 10-22 | Squirreltail seeds 248
Figure 10-23 | Straw blower 248
Figure 10-24 | Salvaged soil can be tested for nitrogen content 253
Figure 10-26 | Soil textures suitable as loam barrow 254
Figure 10-25 | Soil quantity needed for a certain depth can be estimated 254
Figure 10-27 | Nutrients in forest biomass 260
Figure 10-27 | Determining amount of compost to apply 264
Figure 10-30 | Approximate liming rates for disturbed soils 267
Figure 10-29 | Determining how much liming material to apply 267
Figure 10-31 | Symbiotic relationships of plants 268
Figure 10-32 | Mycorrhizal fungi 269
Figure 10-33 | Soil inoculum can be collected in the field 270
Figure 10-34 | Ectomycorrhizal inoculum 271
Figure 10-35 | Ectomycorrhizae 271
Figure 10-36 | Arbuscular mycorrhizal fungi 272
Figure 10-37 | Commercial AMF inoculants 272
Figure 10-38 | Nitrogen fixing bacteria 273
Figure 10-39 | Nitrogen fixing plants 274
Figure 10-40 | Amount of nitrogen is related to the cover of nitrogen-fixing plants 275
Roadside Revegetation: An Integrated Approach to Establishing Native Plants and Pollinator Habitat
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