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| 由灌溉引起的黄土湿陷过程中碳酸钙行为研究 | |
| 引用本文： | 郭玉文,张玉龙,党秀丽,加藤诚.由灌溉引起的黄土湿陷过程中碳酸钙行为研究[J].土壤学报,2008,45(6):1034-1039. |
| 作者姓名： | 郭玉文 张玉龙 党秀丽 加藤诚 |
| 作者单位： | 1. 中国环境科学研究院,北京 100012;东京农工大学,日本东京 183- 0051 2. 沈阳农业大学土地资源与环境学院,沈阳,110161 3. 东京农工大学,日本东京 183- 0051 |
| 摘 要： | 长期以来,有关黄土湿陷的研究一直忽视对碳酸钙行为的探讨。本研究利用扫描电子显微镜(SEM)和能谱分析(EDX)技术研究了黄土中碳酸钙的分布,通过室内模拟实验,探讨了由灌溉引起的黄土湿陷过程中碳酸钙的行为,初步得出以下结论:黄土颗粒间存在大量碳酸钙,在黄土湿陷过程中碳酸钙发生淋溶、移动损失,其中以移动损失为主,溶解损失相对较少。碳酸钙的移动损失量随透水量增加而增加,在下部土层发生聚集。 |
| 关 键 词： | 黄土 湿陷 碳酸钙 淋溶 移动 |
| 收稿时间： | 3/7/2007 12:00:00 AM |
| 修稿时间： | 2007/6/18 0:00:00 |
BEHAVIORS OF CaCO3 IN LOESS COLLAPSE CAUSED BY IRRIGATION |
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| Guo Yuwen,Zhang Yulong,Dang Xiuli and Kato Makoto.BEHAVIORS OF CaCO3 IN LOESS COLLAPSE CAUSED BY IRRIGATION[J].Acta Pedologica Sinica,2008,45(6):1034-1039. | |
| Authors: | Guo Yuwen Zhang Yulong Dang Xiuli and Kato Makoto |
| Institution: | Guo Yuwen1,3 Zhang Yulong2 Dang Xiuli2 Kato Makoto3(1 Chinese Research Academy of Environmental Sciences,Beijing 100012,China)(2 L, , Environment College,Shenyang Agricultural University,Shenyang 110161,China)(3 Tokyo University of Agriculture , Technology,Tokyo 1830051,Japan) |
| Abstract: | The study on loess collapsibility has long ignored role of CaCO3.With the aid of scanning electron microscope(SEM) and X-ray energy dispersive microanalysis(EDX or EDS),CaCO3 distribution in loess was explored.Some indoor experiments were carried out to simulate loess collapse and study behaviors of CaCO3 in the process.Results show that between loess particles exists plenty of CaCO3,which is easily leached with irrigation water and lost in the process.Its loss through movement is much greater than through ... |
| Keywords: | Loess Collapsibility CaCO3 Eluviation Movement |
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