【摘要】：根據(jù)小浪底、花園口、黑石關(guān)3個水文站近50 a實(shí)測徑流量與輸沙量數(shù)據(jù)資料,運(yùn)用交叉小波分析方法,結(jié)合交叉小波能量譜、小波凝聚譜和小波功率譜探討了尹洛河水沙入?yún)R對黃河干流下游水沙的影響。結(jié)果表明:(1)黑石關(guān)與小浪底徑流量在1978-1992年間均具有4~9 a的周期尺度;黑石關(guān)站輸沙量和小浪底站輸沙量相關(guān)性不顯著;(2)黑石關(guān)徑流量對花園口徑流量有持續(xù)穩(wěn)定的影響,主要體現(xiàn)在1965-1996年的0~9 a的周期尺度上;黑石關(guān)輸沙量對花園口輸沙量有一定影響,主要表現(xiàn)在1958-1970年的4~10 a和1956-1962年的0~6 a的周期尺度上,但影響程度不大�？傮w而言,伊洛河水沙入?yún)R對黃河下游徑流過程影響顯著,輸沙過程影響不大。
[Abstract]:According to the measured runoff and sediment discharge data of Xiaolangdi, Huayuankou and Heishiguan hydrological stations in recent 50 years, the cross wavelet analysis method is used to combine the cross wavelet energy spectrum. The influence of sediment inflow of Yinluo River on water and sediment in the lower reaches of the main stream of the Yellow River is discussed by wavelet condensation spectrum and wavelet power spectrum. The results showed that: (1) the runoff of Heshiguan and Xiaolangdi had a periodic scale of 4 ~ 9 years from 1978 to 1992, the correlation of sediment transport capacity and sediment discharge of Xiaolangdi station was not significant, (2) the runoff of Heshiguan had a sustained and stable effect on the runoff of Huayuankou. It is mainly reflected in the periodic scale of 0 ~ 9 a from 1965-1996, and the amount of sediment transport at Heshiguan has a certain influence on the sediment discharge at Huayuankou, mainly on the periodic scale of 410 a from 1958-1970 and 06 a from 1956-1962, but the influence is not significant. Generally speaking, the sediment inflow of Yiluo River has a significant effect on the runoff process of the lower Yellow River, but not on the sediment transport process.
【作者單位】： 太原理工大學(xué)水利科學(xué)與工程學(xué)院;
【基金】：國家自然科學(xué)基金項(xiàng)目(51004120) 山西省青年科技研究基金項(xiàng)目(2013021031-1)
【分類號】：TV14

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