Arid
DOI10.1016/j.jhydrol.2011.09.028
The influence of irrigation water on the hydrology and lake water budgets of two small arid-climate lakes in Khorezm, Uzbekistan
Scott, Julian1; Rosen, Michael R.2; Saito, Laurel1; Decker, David L.1,3
通讯作者Scott, Julian
来源期刊JOURNAL OF HYDROLOGY
ISSN0022-1694
EISSN1879-2707
出版年2011
卷号410期号:1-2页码:114-125
英文摘要

Little is known regarding the origins and hydrology of hundreds of small lakes located in the western Uzbekistan province of Khorezm, Central Asia. Situated in the Aral Sea Basin, Khorezm is a productive agricultural region, growing mainly cotton, wheat, and rice. Irrigation is provided by an extensive canal network that conveys water from the Amu Darya River (AD) throughout the province. The region receives on average 10 cm/year of precipitation, yet potential evapotranspiration exceeds this amount by about 15 times. It was hypothesized that the perennial existence of the lakes of interest depends on periodic input of excess irrigation water. This hypothesis was investigated by studying two small lakes in the region, Tuyrek and Khodjababa. In June and July 2008, surface water and shallow groundwater samples were collected at these lake systems and surrounding communities and analyzed for delta H-2, delta O-18, and major ion hydrochemistry to determine water sources. Water table and lake surface elevations were monitored, and the local aquifer characteristics were determined through aquifer tests. These data and climate data from a Class A evaporation pan and meteorological stations were used to estimate water budgets for both lakes. Lake evaporation was found to be about 0.7 cm/day during the study period. Results confirm that the waters sampled at both lake systems and throughout central Khorezm were evaporated from AD water to varying degrees. Together, the water budgets and stable isotope and major ion hydrochemistry data suggest that without surface water input from some source (i.e. excess irrigation water), these and other Khorezm lakes with similar hydrology may decrease in volume dramatically, potentially to the point of complete desiccation. (C) 2011 Elsevier B.V. All rights reserved.


英文关键词Central Asia Isotopes Water budget Shallow lakes Evaporation Stable isotopes
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000297968000011
WOS关键词SURFACE ; SYSTEM
WOS类目Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向Engineering ; Geology ; Water Resources
来源机构United States Geological Survey ; Desert Research Institute
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/169292
作者单位1.Univ Nevada, Grad Program Hydrol Sci, Reno, NV 89557 USA;
2.US Geol Survey, Nevada Water Sci Ctr, Carson City, NV 89701 USA;
3.Desert Res Inst, Reno, NV 89512 USA
推荐引用方式
GB/T 7714
Scott, Julian,Rosen, Michael R.,Saito, Laurel,et al. The influence of irrigation water on the hydrology and lake water budgets of two small arid-climate lakes in Khorezm, Uzbekistan[J]. United States Geological Survey, Desert Research Institute,2011,410(1-2):114-125.
APA Scott, Julian,Rosen, Michael R.,Saito, Laurel,&Decker, David L..(2011).The influence of irrigation water on the hydrology and lake water budgets of two small arid-climate lakes in Khorezm, Uzbekistan.JOURNAL OF HYDROLOGY,410(1-2),114-125.
MLA Scott, Julian,et al."The influence of irrigation water on the hydrology and lake water budgets of two small arid-climate lakes in Khorezm, Uzbekistan".JOURNAL OF HYDROLOGY 410.1-2(2011):114-125.
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