How old are large Brazil-nut trees (Bertholletia excelsa) in the Amazon?
[摘要] The age of a large Brazil-nut tree (Bertholletia excelsa) is measured by radiocarbon dating, and a discussion is made about their importance in the Amazon rain-forest ecosystem.
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[关键词] Amazon;Brazil-nut;radiocarbon age;Amazônia;castanheira;idade radiocarbônica [时效性]
