Ion Transport and Permeability in an Allophanic Andisol at Low pH

Ishiguro, Munehide

Soil Science and Plant Nutrition, 2005, 51(5), 637-640

Permalink : https://hdl.handle.net/2115/70738

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Ion Transport and Permeability in an Allophanic Andisol at Low pH	pdf	391 KB	447

アクセス権	open access
URI	https://hdl.handle.net/2115/70738
タイトル	Ion Transport and Permeability in an Allophanic Andisol at Low pH
著者	e-Rad_Researcher 00294439 著者名 Ishiguro, Munehide
言語	英語
キーワード	allophanic Andisol
	flocculation
	ion transport
	permeability
	soil dispersion
発行日	2005
出版者	Taylor & Francis
収録物名	Soil Science and Plant Nutrition
巻(号)	51(5)
ページ	637-640
抄録	Allophanic Andisols have a significant pH-dependent charge. The positive charge increases and the negative charge decreases as pH decreases; therefore, anion movement becomes slower and cation movement becomes faster as pH decreases in the soil. At low pH, soil dispersion occurs easily due to electric repulsive force. The permeability of the soil then decreases because of structural changes that occur when dilute HCl or HNO3 is percolated in the soil. However, soil permeability does not decrease when dilute H2SO4 is percolated in the soil. This is because SO4 2- strongly adsorbs on the soil surface at low pH and the soil remains flocculated.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	This is an Accepted Manuscript of an article published by Taylor & Francis in Soil Science and Plant Nutrition on 2005, available online: https://www.tandfonline.com/doi/abs/10.1111/j.1747-0765.2005.tb00080.x
PISSN	0038-0768
EISSN	1747-0765
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1111/j.1747-0765.2005.tb00080.x