id	keyword
bae-9678	et al
bae-9678	attributes
bae-9678	farmers
bae-9678	studies
bae-9678	contract
bae-9678	environmental
bae-9678	choice
bae-9678	participation
bae-9678	review
bae-9678	aes
bae-9678	study
bae-9678	economics
bae-9678	agri
bae-9678	preferences
bae-9678	flexibility
bae-9678	use
bae-9678	compensation
bae-9678	policy
bae-9678	conservation