id	keyword
american_scientific_journal-526	area
american_scientific_journal-526	sub
american_scientific_journal-526	watershed
american_scientific_journal-526	soil
american_scientific_journal-526	sediment
american_scientific_journal-526	study
american_scientific_journal-526	erosion
american_scientific_journal-526	priority
american_scientific_journal-526	journal
american_scientific_journal-526	research
american_scientific_journal-526	engineering
american_scientific_journal-526	sciences
american_scientific_journal-526	technology