干旱区生态环境知识资源中心(Arid): Soil formation in high elevation and permafrost areas in the Qinghai Plateau (China)

Arid

DOI	10.3232/SJSS.2012.V2.N2.02
	Soil formation in high elevation and permafrost areas in the Qinghai Plateau (China)
	Arocena, J.; Hall, K.; Zhu, L. P.
通讯作者	Arocena, J
来源期刊	SPANISH JOURNAL OF SOIL SCIENCE
ISSN	2253-6574
出版年	2012
卷号	2 期号:2 页码:34-49
英文摘要	Soil systems continuously gain and lose matter and energy even in areas where climate is too harsh to support the higher plants such as in higher elevations and in permafrost environments. The purpose of this paper was to elucidate soil formation at 4 700 m asl in the Kunlun Mountains of the Qinghai (Tibet) Plateau, China. We collected twenty-six samples from three pedons developed on carbonaterich slate and quartzitic-sandstone materials. The samples were analyzed for routine physical, chemical and mineralogical properties. Our results indicate that soil-forming processes are barely taking place in the study site as shown by pH > 7.0 reflecting limited decarbonation, biological activity (< 1.0% total C and < 0.05% total N), podzolization (< 1 g Fe-p+Al-p kg(-1) soil) and lessivage. The relative amounts of mica and kaolinite show no apparent change with depth suggesting minimal transformation and translocation of phyllosilicates. The most noticeable mineral transformation resulted in micaceous "flakes" and feldspathic "fragments" possibly due to thermal stress. Calcite is also observed coating the slate fragments. The soils are classified as Cryosols in the World Reference Base system and Gelisols in the Soil Taxonomy with ochric epipedon as the only diagnostic horizon indicating recent development of soils due to cold and arid environment. The results of this study show that soil-forming processes in harsh environments are manifested in the mechanical breakdown of minerals such as mica and feldspars.
英文关键词	Cryosols muscovite feldspar kaolinite diamicton thermal stress sandstone
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000219704000002
WOS关键词	ORGANIC-CARBON ; KUNLUN PASS ; CLASSIFICATION ; PROVINCE ; ROCKS
WOS类目	Soil Science
WOS研究方向	Agriculture
来源机构	中国科学院青藏高原研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/330083
作者单位	[Arocena, J.; Hall, K.] Univ Northern British Columbia, Coll Sci & Management, 3333 Univ Way, Prince George, BC V2N 4Z9, Canada; [Zhu, L. P.] Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Arocena, J.,Hall, K.,Zhu, L. P.. Soil formation in high elevation and permafrost areas in the Qinghai Plateau (China)[J]. 中国科学院青藏高原研究所,2012,2(2):34-49.
APA	Arocena, J.,Hall, K.,&Zhu, L. P..(2012).Soil formation in high elevation and permafrost areas in the Qinghai Plateau (China).SPANISH JOURNAL OF SOIL SCIENCE,2(2),34-49.
MLA	Arocena, J.,et al."Soil formation in high elevation and permafrost areas in the Qinghai Plateau (China)".SPANISH JOURNAL OF SOIL SCIENCE 2.2(2012):34-49.