Here are some useful resources to help you get start with your sand dune restoration projects. For more general information on getting started go to Getting started.
Sand dune planting. Briggs Pilkington, DOC
Pikao (or Pingao) the Golden Sand Sedge - Coastal Sand Dunes Form and Function, DOC
Research on dunes, NZPCN
Page with a brief overview about sand dunes, Northland Regional Council
How Dunes Work, Dune Restoration Trust