中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Geochemical barriers and element retention in soils in different landscapes of the Tianshan Mountain area, Xinjiang, China

文献类型:期刊论文

作者Huang, B; Gong, ZT
刊名GEODERMA
出版日期2005-06-01
卷号126期号:3-4页码:337-351
关键词geochemical barriers arid desert and alto-cryic landscapes distribution of elements and their availability in soils Tianshan Mountain area in China
ISSN号0016-7061
DOI10.1016/j.geoderma.2004.10.008
通讯作者Huang, B(bhuang@issas.ac.cn)
英文摘要Geochemical barriers (GBs) are defined as a local epigenetic zone where the conditions of elemental migration are distinctly altered, resulting in a substantial accumulation of selected elements. It is of great importance to understand the local distribution pattern of elements and their availability affected by local factors. A soil survey of two predominant landscapes, an and desert landscape and an alto-cryic landscape, in the Tianshan Mountain area, China was conducted to study GBs' types, characteristics and distribution in the area, and distribution of selected elements and their availability within the GBs. In the Tianshan Mountain area, there were mainly mechanical and evaporative GBs in the and desert landscapes and biological GBs in the alto-cryic landscape. Mechanical GBs influenced by the change of water-or atmosphere-flow velocity were distributed along piedmonts or in depressions away from the mountains, and characterized by an accumulation of clay accompanied with Ba, F, K, Li and Zn as well as highly available Fe, Cu and Zn in soil pedons. Distributed from mountain to the basins on both sides of the mountains, evaporative GBs appeared with a sequence of calcium carbonate (CaCO3) gypsum and soluble salt evaporative GBs, corresponding to the variation from moist to dry microclimate conditions. Besides saline materials, these GBs possessed an accumulation of available F, total B and Sr, and total and available B in CaCO3, gypsum and soluble salt evaporative GB, respectively. The dominant majority of biological GBs was in the alto-cryic landscapes of the mountains, where cold and wet climatic conditions caused organic matter to substantially accumulate in the topsoil. The availability of Cu, Fe and Zn was significantly increased in the biological GBs, and the availability of F, however, decreased. Understanding of these characteristics may be beneficial for sustainable agriculture, human health and the protection of vulnerable and environment. © 2004 Elsevier B.V. All rights reserved.
收录类别SCI
WOS关键词CROP UPTAKE ; CADMIUM ; QUALITY ; AVAILABILITY ; PHOSPHORUS ; COPPER ; ZINC
WOS研究方向Agriculture
WOS类目Soil Science
语种英语
WOS记录号WOS:000229129800011
出版者ELSEVIER SCIENCE BV
URI标识http://www.irgrid.ac.cn/handle/1471x/2558523
专题南京土壤研究所
通讯作者Huang, B
作者单位Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714
Huang, B,Gong, ZT. Geochemical barriers and element retention in soils in different landscapes of the Tianshan Mountain area, Xinjiang, China[J]. GEODERMA,2005,126(3-4):337-351.
APA Huang, B,&Gong, ZT.(2005).Geochemical barriers and element retention in soils in different landscapes of the Tianshan Mountain area, Xinjiang, China.GEODERMA,126(3-4),337-351.
MLA Huang, B,et al."Geochemical barriers and element retention in soils in different landscapes of the Tianshan Mountain area, Xinjiang, China".GEODERMA 126.3-4(2005):337-351.

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来源:南京土壤研究所

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