Table 1. Restoration treatments and weed control methods.
Treatments | Seeding strategy | ||||
---|---|---|---|---|---|
I | II | III | IV | V (control) | |
Grass in year 1 | yes | yes | no | no | no |
Shrub seeding year | 2 | 1 | 1 | 2 | none |
Grass seed origin | wild-collected / commercial | wild-collected / commercial | -- | -- | -- |
Shrub seed origin | local / distant | local / distant | local / distant | local / distant | -- |
Irrigation regime | spring / fall+spring | spring / fall+spring | spring / fall+spring | spring / fall+spring | spring / fall+spring |
Weed control | herbicide+mowing | mowing | mowing | herbicide+mowing | none |
Restoration treatments followed five seeding strategies (I-V) that varied in timing of planting and the presence of different functional groups. Seed origins also varied in strategies I-IV, and two different irrigation treatments were applied in all strategies. Forward slash (/) indicates that the listed levels were analyzed separately within the given strategy. Plus signs (+) indicate that treatments were applied together within the given strategy, and dashes (—) indicate when factors were not included in a seeding strategy. Weed control methods are also indicated.