id	keyword
american_scientific_journal-3099	forest
american_scientific_journal-3099	land
american_scientific_journal-3099	woodland
american_scientific_journal-3099	use
american_scientific_journal-3099	area
american_scientific_journal-3099	tree
american_scientific_journal-3099	rangelands
american_scientific_journal-3099	units
american_scientific_journal-3099	savannah
american_scientific_journal-3099	alibori
american_scientific_journal-3099	des
american_scientific_journal-3099	surface