Soil redistribution investigations by combined use of soil Cs-137 and selected chemical properties
文献类型:期刊论文
作者 | Tang, XY; Yang, H; Du, MY; Zhao, QG; Li, RY |
刊名 | SOIL SCIENCE AND PLANT NUTRITION
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出版日期 | 2003-08-01 |
卷号 | 49期号:4页码:557-566 |
关键词 | chemical property (CS)-C-137 soil erosion |
ISSN号 | 0038-0768 |
通讯作者 | Yang, H(hyang@issas.ac.cn) |
英文摘要 | The Cs-137 spatial redistribution data have been widely used to estimate soil redistribution rates over the past 45 years approximately. However, the frequent changes in land use in China have limited the general application of the Cs-137 tracer technique to soil erosion or deposition budget on the mid-/long-term. In this paper, Soil Cs-137 measurements and some chemical properties, such as the soil organic carbon and available phosphorus contents, were simultaneously used to identify sediment sources and to reveal the spatial characteristics of soil redistribution. The deposition rates after and before the changes in local land use could be estimated using the approach proposed in this study. The reclamation of formerly uncultivated slopes was found to lead not only to striking accelerated soil erosion but also to considerable changes in the slope form. A typical footslope site on 5-year-old reclaimed sloping land which appeared to have experienced net erosion before 1997, has become a site with deposition reaching a rate of 3.0 cm year(-1) since 1997. Besides the soil Cs-137 activity, the soil organic carbon content was found to be a very meaningful indicator of the extent of soil erosion or deposition, and the significant difference in the soil available phosphorus content between uncultivated and cultivated land could become a very sensitive and suitable criterion for identifying sediment sources under different land uses. |
收录类别 | SCI |
WOS关键词 | QUANTITATIVE MODEL ; EROSION ; RATES |
WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology ; Agriculture |
WOS类目 | Plant Sciences ; Environmental Sciences ; Soil Science |
语种 | 英语 |
WOS记录号 | WOS:000184886400011 |
出版者 | WILEY-BLACKWELL |
URI标识 | http://www.irgrid.ac.cn/handle/1471x/2559229 |
专题 | 南京土壤研究所 |
通讯作者 | Yang, H |
作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China 2.Natl Inst Agroenvironm Sci, Tsukuba, Ibaraki 3058604, Japan |
推荐引用方式 GB/T 7714 | Tang, XY,Yang, H,Du, MY,et al. Soil redistribution investigations by combined use of soil Cs-137 and selected chemical properties[J]. SOIL SCIENCE AND PLANT NUTRITION,2003,49(4):557-566. |
APA | Tang, XY,Yang, H,Du, MY,Zhao, QG,&Li, RY.(2003).Soil redistribution investigations by combined use of soil Cs-137 and selected chemical properties.SOIL SCIENCE AND PLANT NUTRITION,49(4),557-566. |
MLA | Tang, XY,et al."Soil redistribution investigations by combined use of soil Cs-137 and selected chemical properties".SOIL SCIENCE AND PLANT NUTRITION 49.4(2003):557-566. |
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来源:南京土壤研究所
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