[1]GUO Mengjing,ZHOU Xiaode,LI Peng,et al.Investigation of the Changes in the Water Level of Bosten Lake in the Past 50 Years[J].Research of Soil and Water Conservation,2015,22(02):52-57.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 02
Page number:
52-57
Column:
Public date:
2015-04-28
- Title:
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Investigation of the Changes in the Water Level of Bosten Lake in the Past 50 Years
- Author(s):
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GUO Mengjing1, ZHOU Xiaode1, LI Peng1, CHENG Shengdong1, CHEN Yongmin2
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1. State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, China;
2. Xinjiang Academy of Environmental Protection Science, Urumqi 830011, China
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- Keywords:
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Bosten Lake; water level variation; wavelet analysis; Mann-Kendall test
- CLC:
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P343.3
- DOI:
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- Abstract:
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This paper was purposed to analyze the change characteristics of lake level in the Bosten Lake during the past 50 years. The lake is located in the arid area. In this paper, the methods of wavelet analysis and Mann-Kendall test were employed, and the data of water level from 1956 to 2012 were also used to analyze the changes of lake level. The results show that the variations of lake level can be divided into three periods, falling (1956—1987), rising(1988—2002) and falling (2003—2012). To be specific, the lake level declined by 3.39 m from 1956 to 1987. Then, it rose by 3.7 m from 1988 to 2002. Afterwards, it declined again by 3.21 m from 2003 to 2012. Based on the Mann-Kendall test, the lake level shows the significant decreasing trend with a significance test at the leve of 0.05. The primary change period of lake level was 18 a by using the Morlet wavelet analysis. In addition, there was another period of 38 a in terms of the lake level. It was difficult to determine this period due to the limitation of lake level data series. Therefore, the more data series of lake levels need to be tested and verified.