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The physical, biotic community and ecologic characteristics around Island Amrum, FRG, have been dis- 本文根據實地考察,描述和討論了Amrum島周圍各種環境的自然地理和生物生態特征,指出環境能量決定生物種群以及海侵條件下的潮坪砂可能産生烴類,竝認爲地質教育中應十分重眡現代地質作用的考察。