Contribution of supra-permafrost discharge to thermokarst lake water balances on the northeastern Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | Pan, Xicai1; Yu, Qihao2; You, Yanhui2; Chun, Kwok Pan3; Shi, Xiaogang4; Li, Yanping5 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2017-12-01 |
| 卷号 | 555页码:621-630 |
| 关键词 | Thermokarst lake Supra-permafrost discharge Hydrological regime Lake growth Tibetan Plateau |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2017.10.046 |
| 通讯作者 | Pan, Xicai(xicai.pan@issas.ac.cn) |
| 英文摘要 | The seasonal hydrological mechanisms of two thermokarst lakes on the northeastern Qinghai-Tibet Plateau (QTP) were characterized by three-year intensive field observations and a water balance model. In three ice-free seasons, the supra-permafrost discharge contributed a mean ratio of over 170% of the precipitation. In the ice-cover seasons, the supra-permafrost discharge contribution varied between -20% and 22% of the water storage change. Results show that a large portion of the lake water storage change is because of the supra-permafrost discharge resulting from precipitation. Furthermore, a precipitation-subsurface runoff function is preliminarily identified in which the supra-permafrost discharge nonlinearly increased with more precipitation. Our results show that the recent lake expansion is linked with increasing supra-permafrost discharge dominated by precipitation. This study also suggests that we need to pay attention to the nonlinear increase of precipitation-controlled supra permafrost discharge on the large lake expansion at the catchment scale in the QTP region, instead of only looking at the inputs (e.g., precipitation and river discharge) as shown in the previous studies. (c) 2017 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | SOIL-MOISTURE OBSERVATIONS ; RAINFALL ESTIMATION ; RUNOFF GENERATION ; ARCTIC ALASKA ; HYDROLOGY ; CANADA ; BASIN ; THAW ; SUBLIMATION ; STORAGE |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| WOS类目 | Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000418107600048 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558055 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Pan, Xicai |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Fengqiu Agroecol Expt Stn, Nanjing, Jiangsu, Peoples R China 2.Chinese Acad Sci, State Key Lab Frozen Soils Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou, Gansu, Peoples R China 3.Hong Kong Baptist Univ, Dept Geog, Hong Kong, Hong Kong, Peoples R China 4.Univ Lancaster, Lancaster Environm Ctr, Lancaster, England 5.Univ Saskatchewan, Global Inst Water Secur, Saskatoon, SK, Canada |
| 推荐引用方式 GB/T 7714 | Pan, Xicai,Yu, Qihao,You, Yanhui,et al. Contribution of supra-permafrost discharge to thermokarst lake water balances on the northeastern Qinghai-Tibet Plateau[J]. JOURNAL OF HYDROLOGY,2017,555:621-630. |
| APA | Pan, Xicai,Yu, Qihao,You, Yanhui,Chun, Kwok Pan,Shi, Xiaogang,&Li, Yanping.(2017).Contribution of supra-permafrost discharge to thermokarst lake water balances on the northeastern Qinghai-Tibet Plateau.JOURNAL OF HYDROLOGY,555,621-630. |
| MLA | Pan, Xicai,et al."Contribution of supra-permafrost discharge to thermokarst lake water balances on the northeastern Qinghai-Tibet Plateau".JOURNAL OF HYDROLOGY 555(2017):621-630. |
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来源：寒区旱区环境与工程研究所
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