Study

Managing contingency in semiarid grassland restoration through repeated planting

  • Published source details Wilson S.D. (2015) Managing contingency in semiarid grassland restoration through repeated planting. Restoration Ecology, 23, 385-392.

Actions

This study is summarised as evidence for the following.

Action Category

Sow seeds at a higher density

Action Link
Grassland Conservation
  1. Sow seeds at a higher density

    A replicated, controlled study in 2005–2009 in an abandoned field in Saskatchewan, Canada (Wilson 2015) found that sowing thickspike wheatgrass Elymus lanceolatus seeds at higher densities resulted in higher thickspike wheatgrass cover and lower cover of non-native species. In two of three comparisons sowing seeds at a higher density increased cover of thickspike wheatgrass (highest seeding rate: 86–98%, lowest seeding rate: 2–25%), however in one comparison there was no change in cover as seeding rate increased (highest seeding rate: 5%, lowest seeding rate: 1%). In two of three comparisons sowing seeds at a higher density reduced cover of non-native cover (highest seeding rate: 6–13%, lowest seeding rate: 60–94%), but in one comparison there was no change in non-native cover (highest seeding rate: 62%, lowest seeding rate: 59%). In June 2005–2007, thickspike wheatgrass seeds were sown at a rate of 30, 300, 600, 1800, and 3000 seeds/m2.

    (Summarised by: Philip Martin)

Output references
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