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	The roles of parent material and toposequence on geochemical characteristics and pedogenic iron oxides of soils
	Tuncay, T.; Dengiz, O.
通讯作者	Tuncay, T
来源期刊	INDIAN JOURNAL OF GEO-MARINE SCIENCES
ISSN	0379-5136
EISSN	0975-1033
出版年	2020
卷号	49 期号:4 页码:622-633
英文摘要	Soil formation is highly associated with topographic position and parent material, both of which play roles in the morphological, mineralogical and weathering processes of soils, particularly on the local level. Landscape topography conducts soil formation through affecting biogeochemical process and regulating soil hydrological process in the surface part of the earth, while parent material has a considerable effect on the types and concentrations of elements found in soil. This study aimed to determine how pedogenic and other factors affect soil classification by identifying the geochemical characteristics of soils classified as vertisols, inceptisols and entisols located on different topographies and possessing different parent material. Following macro-morphological identification of six typical soil pedons, samples were taken from different soil layer and their geochemical, mineralogical and other characteristics were analyzed. These characteristics were also evaluated for possible use in identifying soil maturity stages and periods of late-quaternary soil formation. The pedogenic evolution of soils was also examined using genetic ratios, which combine major oxides and selective dissolution analysis (Fe-o-Fe-d ) values into a single metric. All pedons had Si/Al ratios above 2, indicating arid, sub-arid, sub-humid or high precipitation with cold areas. In addition, Fe-d (dithionite extractable iron) values were higher than Fe-o (oxalate extractable iron) and lower Fe-t (total Fe oxides) values, ranging between 0.007 % and 0.031 %. Therefore, the results clearly showed that local soil geochemical, mineralogical and morphological characteristics in the research area were strongly influenced by topographic conditions and parent material either directly or indirectly.
英文关键词	Chemical weathering Geochemical evolution Selective dissolution analysis Soil formation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000548367800016
WOS关键词	WEATHERING RATES ; DITHIONITE
WOS类目	Oceanography
WOS研究方向	Oceanography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325029
作者单位	[Tuncay, T.] Soil Fertilizer & Water Resources Cent Res Inst, TR-06110 Ankara, Turkey; [Dengiz, O.] Ondokuz Mayis Univ, Fac Agr, Dept Soil Sci & Plant Nutr, TR-55105 Samsun, Turkey
推荐引用方式 GB/T 7714	Tuncay, T.,Dengiz, O.. The roles of parent material and toposequence on geochemical characteristics and pedogenic iron oxides of soils[J],2020,49(4):622-633.
APA	Tuncay, T.,&Dengiz, O..(2020).The roles of parent material and toposequence on geochemical characteristics and pedogenic iron oxides of soils.INDIAN JOURNAL OF GEO-MARINE SCIENCES,49(4),622-633.
MLA	Tuncay, T.,et al."The roles of parent material and toposequence on geochemical characteristics and pedogenic iron oxides of soils".INDIAN JOURNAL OF GEO-MARINE SCIENCES 49.4(2020):622-633.