Characteristics of soil freeze-thaw cycles and their effects on water enrichment in the rhizosphere
文献类型：期刊论文
| 作者 | Wang Anzhi2,3; Ala Musa2; Liu Ya1,2; Niu Cunyang1,2 |
| 刊名 | GEODERMA
 |
| 出版日期 | 2016-02-15 |
| 卷号 | 264页码:132-139 |
| 关键词 | Freeze-thaw Process Soil Moisture Movement Soil Temperature Semi-arid Sandy Land |
| ISSN号 | 0016-7061 |
| DOI | 10.1016/j.geoderma.2015.10.008 |
| 英文摘要 | The freeze-thaw process can lead to water enrichment in freezing layers of soil, and may have beneficial effects on vegetation restoration efforts in sandy land habitats. This study determined the characteristics of soil water migration in dunes and interdune areas during freeze-thaw process, and discussed its potential application to the restoration and recovery of sandy land plant communities. In this research, the mobile sand dunes and interdune lowlands were chosen as the study objects in Horqin Sandy Land, north China. We investigated the soil temperature and moisture content on depths of 20 cm, 50 cm, 100 cm and 150 cm during soil freeze-thaw period (from September 20, 2010 to April 9, 2011), and determined the migrated water during freezing-thawing processes on soil of sand dunes and interdune lowlands, and discussed its potential application on plant recovery processes. Results showed that the soil freeze-thaw process occurred mostly at a depth of 0-100 cm, and the longest period of soil that remained frozen is 104 days at a depth of 20 cm and the shortest period is 39 days at a depth of 100 cm in sand dunes. The number of freeze-thaw cycles was not different between sand dune and interdune area over winter. Most freeze-thaw cycles occurred in the thawing process, and mostly at a depth of 0-50 cm. The freeze-thaw cycles of interdune areas only occurred in the thawing process, but the freeze-thaw cycles of sand dunes occurred both in the process of freezing and thawing. More water of the interdune areas apparently migrated than did in the sand dunes. The range of soil water storage content at depths of 0 to 100 cm increased to 92.4 mm on interdune, and 10.8 mm on sand dunes during the freeze-thaw process. A negative correlation was found between soil temperature and moisture at depths of 100 cm and 150 cm, and while a positive correlation existed at depths of 20 cm and 50 cm. The freeze-thaw process can lead to water enrichment in freezing layer of soil on sand dunes and interdune. Soil texture affected the quantity of soil water migrating during the freeze/thaw process, and more water migrated in interdune areas than in sand dune habitat. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000366776100014 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://210.72.129.5/handle/321005/122361]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Wang Anzhi |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 3.State Key Lab Forest & Soil Ecol, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Anzhi,Ala Musa,Liu Ya,et al. Characteristics of soil freeze-thaw cycles and their effects on water enrichment in the rhizosphere[J]. GEODERMA,2016,264:132-139. |
| APA | Wang Anzhi,Ala Musa,Liu Ya,&Niu Cunyang.(2016).Characteristics of soil freeze-thaw cycles and their effects on water enrichment in the rhizosphere.GEODERMA,264,132-139. |
| MLA | Wang Anzhi,et al."Characteristics of soil freeze-thaw cycles and their effects on water enrichment in the rhizosphere".GEODERMA 264(2016):132-139. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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