Response of groundwater level to precipitation and river stage in the typical district of Sanjiang Plain
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
To clarify the influence of precipitation and river stage on the variation of groundwater level, the correlation among precipitation, groundwater level, and river stage in the typical area of Sanjiang Plain was quantitatively analyzed, and how the river stage affects the response of nearby groundwater level to precipitation was discussed.The Jianshe street and Haiqing groundwater level observation stations near Songhuajiang River and Wusulijiang River and adjacent Fujin and Haiqing hydrological stations in the typical area of Sanjiang Plain were selected as the research objects. The monthly precipitation, groundwater level, and river stage from 2007 to 2016 were used to study the response of groundwater level to precipitation by the cross-correlation analysis method and cross wavelet transform method, and the partial correlation analysis of groundwater level and river stage was carried out to explain the time lag difference of groundwater level response to precipitation. The results showed that there was a significant correlation between groundwater level and river stage. The partial correlation coefficients of Songhuajiang River and Wusulijiang River were 0.88 and 0.511, respectively, which showed the correlation between the groundwater level of Jianshe street groundwater level observation station and the river stage of Songhuajiang River was closer than that of Haiqing groundwater level observation station and the river stage of Wusulijiang River. There were temporal and spatial differences in the lag level of groundwater level to precipitation near the Songhuajiang River and Wusulijiang River in the study area, and the lag time of groundwater level to precipitation near Songhuajiang River and Wusulijiang River was 21.65 d and 2.17 d, respectively. In addition, the dynamic variations of groundwater level and river stage showed that the river water was generally recharged by groundwater from 2007 to 2016.Combined with the results of partial correlation analysis and the dynamic variations of groundwater level and river stage over the years, the river stage significantly affected the response of groundwater level near the river to precipitation, and the correlation between the river stage of Songhuajiang River and the nearby groundwater level was closer. The interaction between the river water in Songhuajiang River and the nearby groundwater was stronger than that in Wusulijiang River and the nearby groundwater, which showed that the river stage in Songhuajiang River had a greater impact on the response relationship between groundwater level and precipitation, so the lag time of adjacent groundwater level in Songhuajiang River to precipitation was longer. The results show that the conversion among precipitation, groundwater and river water has an important effect on the variation of groundwater level, and the river stage plays an important role in the response of groundwater level to precipitation in this area.
Keywords:
Project Supported:
Clc Number:
Mobile website
® 2024 All Rights Reserved
冀公网安备13010502002656号
冀公网安备13010502002656号