Loss of K-bearing clay minerals in flood-irrigated, rice-growing soils in Jiangxi Province, China
文献类型：期刊论文
| 作者 | Li, ZP; Velde, B; Li, DC |
| 刊名 | CLAYS AND CLAY MINERALS
 |
| 出版日期 | 2003-02-01 |
| 卷号 | 51期号:1页码:75-82 |
| 关键词 | clay mineral irrigation mica-chlorite interlayer potassium |
| ISSN号 | 0009-8604 |
| DOI | 10.1346/CCMN.2003.510109 |
| 通讯作者 | Velde, B() |
| 英文摘要 | The loss of K-bearing clay minerals has been observed over an 80 y cultivation period in Chinese rice paddies despite the use of NKP fertilizers. Clay mineral determinations were made in flood-irrigated paddies cultivated for 3, 10, 15, 30 and 80 y in clayey (45 wt.%), red soils derived from red Quaternary sediments. Three clay minerals are initially present in these soils: illite-mica, magnesian chlorite and an interstratified mica-aluminous chlorite mineral. This last phase was identified using computer simulations. The K-bearing phases (discrete mica and illite as well as interstratified mica layers) are to a large extent lost while the Fe content decreases in the soil as a whole and increases in the chlorite. The mica component in the mixed-layer mineral decreases also. These changes in clay mineralogy and relative abundance suggest a loss of potassic minerals and an increase in the formation of less siliceous, more ferro-magnesian chlorite. These changes occur over 30 y or less, a rather rapid, irreversible transformation of soil clay minerals. Such loss of potassic minerals renders the cultivation more dependent on fertilizer amendment. |
| 收录类别 | SCI |
| WOS研究方向 | Chemistry ; Geology ; Mineralogy ; Agriculture |
| WOS类目 | Chemistry, Physical ; Geosciences, Multidisciplinary ; Mineralogy ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000181631300009 |
| 出版者 | CLAY MINERALS SOCIETY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2559215 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Velde, B |
| 作者单位 | 1.Ecole Normale Super, Geol Lab, CNRS 2113, F-75231 Paris, France 2.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, ZP,Velde, B,Li, DC. Loss of K-bearing clay minerals in flood-irrigated, rice-growing soils in Jiangxi Province, China[J]. CLAYS AND CLAY MINERALS,2003,51(1):75-82. |
| APA | Li, ZP,Velde, B,&Li, DC.(2003).Loss of K-bearing clay minerals in flood-irrigated, rice-growing soils in Jiangxi Province, China.CLAYS AND CLAY MINERALS,51(1),75-82. |
| MLA | Li, ZP,et al."Loss of K-bearing clay minerals in flood-irrigated, rice-growing soils in Jiangxi Province, China".CLAYS AND CLAY MINERALS 51.1(2003):75-82. |
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来源：南京土壤研究所
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