Theoretical analysis of the limiting rate of phreatic evaporation for aeolian sandy soil in Taklimakan Desert
文献类型：期刊论文
| 作者 | Hu ShunJun1; Lei JiaQiang; Xu XinWen; Song YuDong; Tian ChangYan1; Chen XiaoBin2; Li XiuChang |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2008-12-01 |
| 卷号 | 53页码:119-124 |
| 关键词 | Aeolian Sandy Soil Limiting Rate Of Phreatic Evaporation Steady Flow Unsaturated Hydraulic Conductivity Taklimakan Desert |
| ISSN号 | 1001-6538 |
| 产权排序 | Chinese Acad Sci, Key Lab Oasis Ecol & Desert Environm, Xinjiang Inst Ecol & Geog; Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev |
| 通讯作者 | Hu, SJ, Chinese Acad Sci, Key Lab Oasis Ecol & Desert Environm, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China |
| 文献子类 | Article |
| 英文摘要 | Phreatic evaporation is a great lose for shallow groundwater in the Taklimakan Desert. Given soil type and groundwater table, the limiting rate of phreatic evaporation is defined as the maximum of water transferred from groundwater to soil surface per unit time, which is a key parameter and control condition for phreatic evaporation model developing. The soil water characteristic curve for the aeolian sandy soil in the Taklimakan Desert was fitted with the least square method based on the formula of soil moisture characteristics curve proposed by Van Genuchten, using observed soil moisture and soil water suction data. The unsaturated hydraulic conductivity was determined by the instantaneous profile method in situ and the calculation formula for unsaturated hydraulic conductivity was established. According to the steady flow theory, the quasi-analytical solution of limiting rate of phreatic evaporation was derived on the basis of generalization of the formula of unsaturated hydraulic conductivity. The results show that the soil moisture characteristics in the Taklimakan Desert can be well described by Van Genuchten's formula, and the limiting rate of phreatic evaporation declines by power function with the descending of groundwater table.; Phreatic evaporation is a great lose for shallow groundwater in the Taklimakan Desert. Given soil type and groundwater table, the limiting rate of phreatic evaporation is defined as the maximum of water transferred from groundwater to soil surface per unit time, which is a key parameter and control condition for phreatic evaporation model developing. The soil water characteristic curve for the aeolian sandy soil in the Taklimakan Desert was fitted with the least square method based on the formula of soil moisture characteristics curve proposed by Van Genuchten, using observed soil moisture and soil water suction data. The unsaturated hydraulic conductivity was determined by the instantaneous profile method in situ and the calculation formula for unsaturated hydraulic conductivity was established. According to the steady flow theory, the quasi-analytical solution of limiting rate of phreatic evaporation was derived on the basis of generalization of the formula of unsaturated hydraulic conductivity. The results show that the soil moisture characteristics in the Taklimakan Desert can be well described by Van Genuchten's formula, and the limiting rate of phreatic evaporation declines by power function with the descending of groundwater table. |
| 学科主题 | Multidisciplinary Sciences |
| URL标识 | 查看原文 |
| WOS关键词 | TABLE |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000266556800015 |
| 公开日期 | 2011-07-05 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/3416]  |
| 专题 | 烟台海岸带研究所_滨海湿地实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Oasis Ecol & Desert Environm, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu ShunJun,Lei JiaQiang,Xu XinWen,et al. Theoretical analysis of the limiting rate of phreatic evaporation for aeolian sandy soil in Taklimakan Desert[J]. CHINESE SCIENCE BULLETIN,2008,53:119-124. |
| APA | Hu ShunJun.,Lei JiaQiang.,Xu XinWen.,Song YuDong.,Tian ChangYan.,...&Li XiuChang.(2008).Theoretical analysis of the limiting rate of phreatic evaporation for aeolian sandy soil in Taklimakan Desert.CHINESE SCIENCE BULLETIN,53,119-124. |
| MLA | Hu ShunJun,et al."Theoretical analysis of the limiting rate of phreatic evaporation for aeolian sandy soil in Taklimakan Desert".CHINESE SCIENCE BULLETIN 53(2008):119-124. |
入库方式： OAI收割
来源：烟台海岸带研究所
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