| 甘肃河西西部地区土壤矿质成分的分布及其变异 |
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| 引用本文： | 吴诗怡.甘肃河西西部地区土壤矿质成分的分布及其变异[J].中国沙漠,1995,15(4):404-408. |
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| 作者姓名： | 吴诗怡 |
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| 作者单位： | 中国科学院兰州沙漠研究所, 兰州 730000 |
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| 摘 要： | 本文通过对土壤剖面中的矿物质成分分析,计算出了各土类间元素含量的变异系数。结果表明,各土类的烧失量、CaO的高变异,烧失量、CaO和MgO三者的相对比例,硅铝铁分子比率及风化淋溶系数等,反映了该区土壤形成特点及发育程度。
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| 关 键 词： | 河西西部地区 土壤矿质成份 变异系数 |
| 收稿时间： | 1995-02-06 |
| 修稿时间： | 1995-07-11 |
DISTRIBUTION ADN VARIATION OF SOIL MINERAL COMPOSITION IN WESTERN HEXI CORRIDOR OF GANSU PROVINCE |
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| Wu Shiyi.DISTRIBUTION ADN VARIATION OF SOIL MINERAL COMPOSITION IN WESTERN HEXI CORRIDOR OF GANSU PROVINCE[J].Journal of Desert Research,1995,15(4):404-408. |
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| Authors: | Wu Shiyi |
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| Institution: | Institute of Desert Recearch, Chinese Academy of Sciences, Lanzhou, 730000 |
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| Abstract: | In this paper,through mineral composition analysis of soil profile,the variation coefficients of element contents among various soil types were calculated.The results showed thatignition losses and CaO contents of different soil types varied greatly; the relative ratio among ignition loss,CaO and MgO,the iron-alumina ratio as well as the weathering-eluviation coefficient etc. reflected the soil-forming characteristics and soil development degress in the region. |
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| Keywords: | Western Hexi Corrider Soil mineral composition Variation cofficient |
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