• 作者： 岡彥一; 劉清
• 作者服務機構： 國立中興大學農藝系
• 中文摘要： 由已開墾上地之雜草群落及土中埋藏種子所萌發之雜草個體數的調查結果，顯示雜草物種的分布皆呈對數常態型，同時亦近似於幾何級數型。此種結果暗示調節物種族群消長的各種力量係以乘積性的方式來構築群落。
• 英文摘要： A survey of weed vegetations developing after clearance (15 cases), as well as of plants occurringfrom buried seed pools(17 cases), demonstrated that the sequential distribution of species was exclusivelylognormal and was approximated by a geometric series. This suggests that various forces regulating speciespopulations act in a multiplicative manner in structuring communities.
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