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Quantitative analysis of relationships between crack characteristics and properties of soda-saline soils in Songnen Plain, China
文献类型：期刊论文
| 作者 | J. H. Ren; X. J. Li; K. Zhao |
| 刊名 | Chinese Geographical Science
 |
| 出版日期 | 2015 |
| 卷号 | 25期号:5页码:591-601 |
| 通讯作者 | 李晓洁 |
| 中文摘要 | The Songnen Plain has a typical soda-saline soil, which often shrinks and cracks under natural conditions during water evaporation. This study aims to analyze the relationships between the crack characteristics and the soil properties of soda-saline soils quantitatively, and attempts to establish prediction models for the main soil properties of soda-saline soils based on the results. In order to achieve these objectives, a desiccation cracking test was conducted using 17 soil specimens with different salinity levels under controlled laboratory conditions. Correlation analysis was then performed between the crack characteristics and the soil properties. The results indicate that the crack characteristics can well represent the surface appearances of cracked soils, they also can well distinguish the salinity levels of soda-saline soils while the clay contents and mineralogical compositions of soils are stable. Among the crack characteristics, crack length has the best relationships with the salinity levels of soda-saline soils. Specifically, the crack length has high correlation (R (2) > 0.87) with the electrical conductivity (EC), Na+, CO3 (2-) and the salinity, it also has reasonable relationship (R (2) > 0.68) with HCO (3) (-) , this indicates crack length can be well used for the prediction of these properties of soda-saline soils. |
| 源URL | [http://159.226.123.10/handle/131322/6539]  |
| 专题 | 东北地理与农业生态研究所_微波遥感学科组 |
| 推荐引用方式 GB/T 7714 | J. H. Ren,X. J. Li,K. Zhao. Quantitative analysis of relationships between crack characteristics and properties of soda-saline soils in Songnen Plain, China[J]. Chinese Geographical Science,2015,25(5):591-601. |
| APA | J. H. Ren,X. J. Li,&K. Zhao.(2015).Quantitative analysis of relationships between crack characteristics and properties of soda-saline soils in Songnen Plain, China.Chinese Geographical Science,25(5),591-601. |
| MLA | J. H. Ren,et al."Quantitative analysis of relationships between crack characteristics and properties of soda-saline soils in Songnen Plain, China".Chinese Geographical Science 25.5(2015):591-601. |
入库方式： OAI收割
来源：东北地理与农业生态研究所
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