id	keyword
american_scientific_journal-6642	land
american_scientific_journal-6642	species
american_scientific_journal-6642	use
american_scientific_journal-6642	tree
american_scientific_journal-6642	land use
american_scientific_journal-6642	types
american_scientific_journal-6642	forest
american_scientific_journal-6642	diversity
american_scientific_journal-6642	tree species
american_scientific_journal-6642	use types
american_scientific_journal-6642	cropland
american_scientific_journal-6642	sites
american_scientific_journal-6642	ghana
american_scientific_journal-6642	vol
american_scientific_journal-6642	rangeland
american_scientific_journal-6642	families