鄱陽(yáng)湖區(qū)地下水位動(dòng)態(tài)及其與湖水側(cè)向水力聯(lián)系分析
[Abstract]:Based on the field monitoring data, the distribution characteristics and dynamic changes of groundwater table in Poyang Lake region were analyzed by statistical method, and the lateral hydraulic relation and degree between lake water and groundwater in typical area were analyzed. The statistical results show that the variation range of groundwater depth in different beaches is about 8.1 ~ 0.1 m.The beach groundwater and lake water maintain a complete hydraulic connection in June and September. The dynamic variation of lake water level and beach groundwater level is highly consistent, which indicates that there is a close lateral hydraulic relationship between the beach groundwater and lake water. The variation range of groundwater depth in different typical areas of the lakeshore zone ranges from 10 to 2.2 m. There is no high consistency between the groundwater level and the lake water level in the lakeshore zone on the diurnal time scale, but there is a good consistency between them on the monthly scale. It shows that there is a certain relationship and hydraulic relationship between groundwater and lake water in the lakeside zone. Wavelet analysis shows that the groundwater level in different typical areas of lake and shoreline zone is significantly correlated with the period of 60 days, and the correlation between them is positive. The results show that there is a close hydraulic relationship between lake water and beach groundwater, but the lateral hydraulic relationship with groundwater in the lakeshore zone may be reflected in some typical periods. It lays a foundation for future research on groundwater in Poyang Lake, and provides scientific basis and reference for ecological environment protection and water resources evaluation of Poyang Lake wetland.
【作者單位】: 中國(guó)科學(xué)院南京地理與湖泊研究所流域地理學(xué)重點(diǎn)實(shí)驗(yàn)室;中國(guó)科學(xué)院大學(xué);華北水利水電大學(xué);江西師范大學(xué)鄱陽(yáng)湖濕地與流域研究教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】:國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(2012CB417003) 國(guó)家自然科學(xué)基金項(xiàng)目(41401031) 江西省重大生態(tài)安全問(wèn)題監(jiān)控協(xié)同創(chuàng)新中心項(xiàng)目(JXS-EW-00) 中國(guó)科學(xué)院流域地理學(xué)重點(diǎn)實(shí)驗(yàn)室開放基金(WSG2015004)~~
【分類號(hào)】:P641.2
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