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| DOI | 10.1007/s00254-008-1462-2 |
| Hydrothermal pattern of frozen soil in Nam Co lake basin, the Tibetan Plateau | |
Tian, Keming; Liu, Jingshi; Kang, Shichang ; Campbell, Iain B.; Zhang, Fei; Zhang, Qianggong; Lu, Wei
| |
| 发表日期 | 2009 |
| ISSN | 0943-0105 |
| 卷号 | 57期号:8 |
| 英文摘要 | Hydrothermal processes and the regimes of frozen soil formed in alpine regions with glaciers and lake area are complex and important for ecological environment but have not been studied in Tibet. Based on soil temperature and moisture data from October 2005 to September 2006 collected in the Nam Co lake basin, Tibetan Plateau (TP), those questions were discussed. The mean annual air temperature was -3.4A degrees C with 8 months below 0A degrees C. Air and soil temperature varied between -25.3 similar to 13.1A degrees C and -10.3 similar to 8.8A degrees C, respectively. Soil moisture variations in the active layer were small with the minimum value of 1.4%, but were influenced greatly by snowmelt, rainfall and evaporation, varying up to 53.8%. The active layer froze later, thawed earlier and was thinner, however, the lower altitude limit of permafrost is higher than that in most areas of TP. The effects of soil moisture (unfrozen water content) on soil temperature, which were estimated through proposed models, were more significant near ground surface than the other layers. The surface soil temperature decreased with snowcover, the effect of cold snow meltwater infiltration on soil thermal conditions was negligible, however, the effect of rainfall infiltration was evident causing thermal disruptions. |
| 关键词 | Active layerSoil temperatureSoil moistureSnow meltwaterRainfall |
| 学科领域 | Environmental Sciences & Ecology; Geology; Water Resources |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 来源期刊 | ENVIRONMENTAL GEOLOGY
 |
| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/111538 |
| 作者单位 | CAS, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Keming,Liu, Jingshi,Kang, Shichang,et al. Hydrothermal pattern of frozen soil in Nam Co lake basin, the Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2009,57(8). |
| APA | Tian, Keming.,Liu, Jingshi.,Kang, Shichang.,Campbell, Iain B..,Zhang, Fei.,...&Lu, Wei.(2009).Hydrothermal pattern of frozen soil in Nam Co lake basin, the Tibetan Plateau.ENVIRONMENTAL GEOLOGY,57(8). |
| MLA | Tian, Keming,et al."Hydrothermal pattern of frozen soil in Nam Co lake basin, the Tibetan Plateau".ENVIRONMENTAL GEOLOGY 57.8(2009). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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