摘要
近年来,受到气候的极端变化和各种人类活动的影响,黄河中游径流量减少的趋势越来越明显。在以往的水资源评价中,只考虑了干流上部分水库对径流减少的影响,而忽略了蓄水骨干坝的影响。通过水土保持部门调研、Google Earth查询以及实地勘测等途径,较为准确的确定了骨干坝的分布及蓄水比例,并根据水量平衡得出蓄水骨干坝的蒸发损失。研究表明:黄河中游头道拐至潼关之间,骨干坝共计4 798座,包括蓄水骨干坝895座,蓄水比例达到18.65%;骨干坝蒸损量为0.19亿m3。此研究初次考虑了蓄水骨干坝对径流减少的影响,可为以后研究径流减少提供理论依据。
In recent years ,the trend of runoff reduction in the middle reaches of the Yellow River runoff reduction is more and more obvious due to the combined effects of extreme climate change and human activities .In the past it only considered the small reservoir on river runoff reduction effect in the evaluation of water resources ,but ignored the influence of storage key dams .It determines key dam distribution and impoundment proportion accurately ,and it calculates the evaporation loss of the storage key dams according to the water balance through the water and soil conservation department investigation ,Google Earth query ,field survey ,and so on . The study indicates that between the middle reaches of the Yellow River Toudaoguai to Tongguan interval ,key dams account a total of 4798 ,including the storage key dam 895 ,the water ratio of 18 .65% ;Key Dam evaporation loss is about 0 .019 billion m3 .The study firstly considers the storage key dam having an impact on runoff reduction ,providing a theoretical basis for future research runoff reduction .
出处
《中国农村水利水电》
北大核心
2015年第7期23-26,共4页
China Rural Water and Hydropower
基金
"十二五"国家科技支撑计划课题"黄河中游河川径流锐减驱动力及人为调控效应研究"(2012BAB02B04)
关键词
骨干坝
蓄水骨干坝
蓄水比例
蒸损量
Google Earth
key dam
storage key dam
impoundment proportion
Google Earth
evaporation loss
