A fence between good arable land and deep sandplain is often justified. It may be a good location for a two or three-line windbreak to help control wind erosion. Many grassed waterways are unstable and can be cultivated by mistake. Plant trees alongside such waterways to mark these water erosion-prone areas more clearly. Ridge crests Ridge crests are often prime sites for windbreaks or for wind erosion control.
Wind speeds are highest across exposed ridges.
Laneways for stock and vehicle movement are often sited along ridges and, being double-fenced, are ideal tree planting areas. Outcrops and breakaways Rocky outcrops and breakaways are often left uncleared, but if they are not fenced they will decline and not regenerate. Double fencing of rocky outcrops is probably the cheapest way of getting more trees back on a farm. Fence, maybe after a burn, and allow natural regeneration. Along earthworks Contour banks with fences along them fit in with convenient contour working.