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	Elemental geochemistry of alto-cryic soils of Qinghai-Tibet Plateau in China - An example from the unpopulated Kekexili region
	Huang, B; Gong, ZT; Gu, G
刊名	GEOCHEMICAL JOURNAL
	2006
卷号	40期号:2页码:211-218
关键词	element geochemistry immature soil alto-cryic pedogenesis Qinghai-Tibet Plateau China
ISSN号	0016-7002
通讯作者	Gong, ZT(ztgong@issas.ac.cn)
英文摘要	The Qinghai-Tibet Plateau has developed immature soils since the late Pliocene period when it was uplifted. The objectives of this paper were (i) to investigate native major and trace elements of the immature soils in the Kekexili region in the Plateau; (ii) to evaluate the bioavailability of selected trace elements in the soils; (iii) to better understand the factors affecting accumulation and depletion of the elements and their bioavailability over a long history of alto-cryie pedogenesis. Cambosols and Aridosols are dominant soil types in this region while Gleyosols and Primosols are minor types. These coarse-textured soils have high soil pH and free carbonate content. The soil profile often developed a mattic or humic epipedon with high organic matter content in the topsoil. The contents of Ca, Mg, Na, and Sr in the Kekexili soils were significantly higher than the average values of Chinese soils, and also the world average, while the contents of Fe, Al, Ti, Mn, P, Co, Cr, and Ba in the former soils lower than those in the latter soils. The accumulation or depletion of elements was mainly dependent on soil carbonate content. The bioavailability of Fe, Zn, and Mn was positively related to the levels of organic matter in the surface soil. Results indicate that though these soils had a long history of pedogenesis, they were still relatively immature due to weak geocheirtical cycles but the bioavailability of nutrients in topsoil was high.
收录类别	SCI
WOS关键词	SEDIMENTS ; AREA
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
语种	英语
出版者	GEOCHEMICAL SOC JAPAN
WOS记录号	WOS:000236101300008
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558583
专题	南京土壤研究所
通讯作者	Gong, ZT
作者单位	Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Huang, B,Gong, ZT,Gu, G. Elemental geochemistry of alto-cryic soils of Qinghai-Tibet Plateau in China - An example from the unpopulated Kekexili region[J]. GEOCHEMICAL JOURNAL,2006,40(2):211-218.
APA	Huang, B,Gong, ZT,&Gu, G.(2006).Elemental geochemistry of alto-cryic soils of Qinghai-Tibet Plateau in China - An example from the unpopulated Kekexili region.GEOCHEMICAL JOURNAL,40(2),211-218.
MLA	Huang, B,et al."Elemental geochemistry of alto-cryic soils of Qinghai-Tibet Plateau in China - An example from the unpopulated Kekexili region".GEOCHEMICAL JOURNAL 40.2(2006):211-218.

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