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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Pedalfer ： ウィキペディア英語版 Pedalfer Pedalfer is composed of aluminum and iron oxides. It is a subdivision of the zonal soil order comprising a large group of soils in which sesquioxides increase relative to silica during soil formation. Pedalfers usually occur in humid areas. It is not used in the current United States system of soil classification but the term commonly shows up in college geology texts. Pedalfers have three subdivisions of which one is Lateritic soils. Pedalfer is a formative element in the United States soil taxonomic system for the Alfisols soil order. ''Alf'' is the formative element in the Alfisol name, and refers to aluminium (Al) and iron (Fe). == See also == * Pedocal * USDA soil taxonomy 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pedalfer」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.