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The physical, biotic community and ecologic characteristics around Island Amrum, FRG, have been dis- 本文根据实地考察,描述和讨论了Amrum岛周围各种环境的自然地理和生物生态特征,指出环境能量决定生物种群以及海侵条件下的潮坪砂可能产生烃类,并认为地质教育中应十分重视现代地质作用的考察。