Farmers have cooperated willingly because the trees provide added income, a sure market, productive use of marginal land, and more wood for on-farm use.
(Farmers; have cooperated willingly; because the trees provide added income, a sure market, productive use of marginal land, and more wood for on-farm use) (the trees; provide; added income, a sure market, productive use of marginal land, and more wood for on-farm use)
Farmers the trees
have cooperated willingly provide
because the trees provide added income, a sure market, productive use of marginal land, and more wood for on-farm use
added income, a sure market, productive use of marginal land, and more wood for on-farm use