Pros of machine-clearing

• fast;

• soil is left in a reasonable tilth so

it's easier to sow;

• landscaping can be done at the same time, eg contouring slopes for water run-off.

Cons

• scarily huge piles of slash that

must be burned;

• churns soil in wet areas;

• risk of compaction affecting

deeper soil layers;

• cost – up to $1000+ per day, per machine, plus transportation costs for getting machinery in and out.