發(fā)布時(shí)間：2018-10-14 13:11

【摘要】：采用1952—2013年資料分析了黃河內(nèi)蒙古河段凌汛期槽蓄水增量時(shí)空變化特點(diǎn)及主要影響因素,在此基礎(chǔ)上建立了槽蓄水增量預(yù)估公式。黃河內(nèi)蒙古河段槽蓄水增量呈逐年增加趨勢(shì),1990年起明顯增加,加重了內(nèi)蒙古河段防凌負(fù)擔(dān)。分析表明,河道過流能力減小是造成槽蓄水增量增加的最主要因素,同時(shí)凌汛期上游來水量增加、凌汛期氣溫變化劇烈也是造成槽蓄水增量增加的重要因素。
[Abstract]:Based on the data from 1952 to 2013, the temporal and spatial variation characteristics and main influencing factors of channel water storage increment in Inner Mongolia reach of Yellow River during ice flood period are analyzed, and the prediction formula of channel water storage increment is established. The increment of channel water storage in Inner Mongolia reaches of the Yellow River is increasing year by year, and it has increased obviously since 1990, which has increased the burden of anti-ice in Inner Mongolia reach. The analysis shows that the decrease of channel overflow capacity is the most important factor that causes the increase of channel water storage increment, at the same time, the upstream water quantity increases during the ice flood period, and the temperature change is also an important factor that causes the increase of the channel water storage increment during the ice flood period.
【作者單位】： 黃河水利委員會(huì)水文局;黃河流域水資源保護(hù)局;
【基金】：水利部公益性行業(yè)科研專項(xiàng)(201301062) 黃河水文科技計(jì)劃項(xiàng)目(文H1303)
【分類號(hào)】：TV882.1
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本文編號(hào)：2270562