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限定条件 ((来源机构：美国环保署))
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CONSERVATION BIOLOGY 3 ENVIRONMENTAL SCIENCE & TECHNOLOGY 3 ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 2
ECOLOGICAL INDICATORS 2 BIOLOGICAL CONSERVATION 1 BIOSCIENCE 1
ECOLOGICAL ECONOMICS 1 ECOLOGY AND EVOLUTION 1 ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 1
INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 1 JOURNAL FOR NATURE CONSERVATION 1 JOURNAL OF ORNITHOLOGY 1
JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION 1 MARINE ECOLOGY PROGRESS SERIES 1 PLOS ONE 1