Zone 4 is often a timber-producing zone, often on more marginal land, wind breaks, stream banks or similar. This zone acts as a buffer between more intensive areas of production and wilderness areas. As such it should be modelled as much as possible on surrounding natural systems and ideally be based on native timber species to allow migration of wildlife between habitats and create buffers between land use types.
For this topic - please refer to the three readings below:
| silviculture.pdf |
| agroforestry_-_silverpasture.pdf |
| environmental_issues.pdf |