| Cite this article: | 丁启振,周金龙,杜明亮,等.新疆石河子-昌吉地区2016-2020年地下水位动态特征分析[J].灌溉排水学报,0,():-. |
| dingqizhen,zhoujinlong,dumingliang,et al.新疆石河子-昌吉地区2016-2020年地下水位动态特征分析[J].灌溉排水学报,0,():-. |
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| Groundwater Level Dynamics in Shihezi-Changji Region of Xinjiang from 2016 to 2020 |
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dingqizhen1, zhoujinlong1, dumingliang1, wangxinzhong2, zhangshuxia2, gaoqi2
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1.College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University;2.Xinjiang Changji geological environment monitoring station
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| Abstract: |
| Abstract:【Objective】The purpose of this paper is to explore the variation law of groundwater level and its driving factors in Shihezi-Changji region of Xinjiang.【Method】Based on the study area from 2016 to 2020 in buried depth data of 44 groundwater level monitoring wells monthly, the groundwater dynamic type was divided, the groundwater depth accumulative variation zoning map and groundwater flow field contrast figure in high and low water level period were drawed, the groundwater level dynamic characteristics and its influencing factors were analyzed using linear trend analysis method and gray relation analysis method.【Result】(1)The dynamic types of unconfined groundwater in the study area were irrigation infiltration - exploitation type and hydrology - exploitation type, whereas the dynamic type of confined groundwater was exploitation type. (2)The groundwater level in Shihezi city showed a rapid rising trend (the variation amplitude of buried depth was mostly -3～-2 m); in the south of Manas County, the groundwater level rose rapidly (mostly -4～-3 m), whereas in the north of Manas County, the water level decreased rapidly (mostly > 5 m). The groundwater level in Hutubi County decreased rapidly (mostly > 5 m). The dynamic change of groundwater level in Changji city was relatively slow, with a slow decrease (mostly 2～3 m). (3)The rise of water level in the southern part of Shihezi city and Manas County mainly depended on the low water level period, whereas the local water level rise in the northern groundwater depression cones area was the opposite; The continuous decrease of water level in Hutubi County was influenced by both high and low water level periods. The dynamic stability of water level in Changji City was related to the replenishment of rivers.【Conclusion】The area of cultivated land, the amount of groundwater extracted and the amount of surface water supplied were the main controlling factors of the change of unconfined groundwater level, whereas the change of confined groundwater level was mainly affected by the area of cultivated land and the amount of groundwater extracted. |
| Key words: Groundwater table dynamics; Linear trend; Groundwater flow field; Grey relation; Shihezi-Changji region |
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