新华社西宁７月２９日电（顾玲、戴升）记者从青海省气候中心了解到，今年以来，黄河上游流域降水量创１９６１年以来历史极值，受此影响，黄河上游出现１９９０年以来最强汛情，气象部门预计，后期降水偏多、流量偏丰，防汛形势依然严峻。

    Xining, xinhua news agency on July 29（GuLing、DaiSheng）Reporters from qinghai climate center to understand，Since this year，The upper reaches of the Yellow River basin precipitation and history since 1961 extreme value，Affected by this，In the upper reaches of the Yellow River since 1990 XunQing strongest，Meteorological department is expected to，Late more rainfall、Flow partial abundant，Flood control and it is still severe。

    青海省气候中心近日的监测分析显示，２０１２年１至６月，黄河上游唐乃亥水文站平均流量为５２０．２立方米／秒，较历年同期平均值偏丰三成，列１９５６年以来第７位，黄河上游出现１９９０年来最强汛情。７月以来，黄河上游流域来水呈迅猛增加态势，唐乃亥水文站日均流量从７月１日的１４１０立方米／秒上涨到２３日的３１９０立方米／秒，２３日８时瞬时流量最大时达到３２８０立方米／秒。受其影响，龙羊峡水库计算最大日均入库流量２２日达到２６５０立方米／秒，出库流量自１９日增加到１０００立方米／秒。

    Qinghai province of climate center recently monitoring analysis shows，2012 1 to 6 months，The upper reaches of the Yellow River is the average flow hai tang hydrological station for 520.2 m3 / SEC，A calendar year average the same period FengSanCheng slant，Column since 1956 the 7 th，In the upper reaches of the Yellow River in 1990 years XunQing strongest。Since July，The upper reaches of the Yellow River basin water at a rapid increase trend，Tang hai is average daily flow station from July 1, 1410 m3 / s up to 23, 3190 m3 / s，23 at 8 instantaneous maximum flow rate reached 3280 cubic meters/SEC。Under the influence of，Largest reservoir operation calculation average daily incoming flow 22 to 2650 m3 / SEC，The outbound traffic from 19 increased to 1000 m3 / SEC。

    气象专家分析认为，上游降水偏多是黄河上游发生汛情的主要原因。今年１月至７月２３日，黄河上游降水量大部偏多，平均降水量为３５１．１毫米，比历年同期平均值偏多了近三成，创１９６１年以来历史极值。

    Weather expert analyzes believed，The rainfall is more than the upper reaches of the Yellow River is the main reason for the XunQing happened。January to July 23，The upper reaches of the Yellow River most partial precipitation，Average rainfall is 351.1 mm，Over the more than the same period the average partial nearly thirty percent，And history since 1961 extreme value。

    青海省气候中心预测，８月至９月中旬，黄河流域大部地区降水量仍偏多，预计８月、９月唐乃亥流量会持续偏丰，使得黄河上游地区水库蓄水量多、水位高，后期防汛形势依然严峻。

    Climate center forecast of qinghai province，From August to the middle of September，In most parts of the Yellow River basin is still partial precipitation，August is expected to、September tang hai flow will continue to slant is abundant，Make the upper reaches of the Yellow River area more than new zhuyin water reservoir、High water level，Later it is still severe flood control。