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首页> 外文会议>2007 IYRF;International Yellow River Forum on Sustainable Water Resources Management and Delta Ecosystem Maintenance >Natural Eecological Water Demand Calculating of Lower Reaches Area of the Heihe River at Present Year
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Natural Eecological Water Demand Calculating of Lower Reaches Area of the Heihe River at Present Year

机译：黑河下游地区自然生态需水量计算。

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摘要

The ecology and environment at the lower reaches area of the Heihe River is on the trend of deterioration because of less water entering the downstream channel which is caused by increasing water consumption in the upper and middle reaches. In order to restore and improve ecology at the lower reaches area of the Heihe River, the ecological water demand must be guaranteed by all means. The natural vegetation area at the lower reaches area of the Heihe River was interpreted by remote sensing image of 1998, and quota of natural ecological water demand at the lower reaches area of the Heihe River is analyzed, thus the natural ecological water demand at the lower reaches area of the Heihe River is calculated on base of the selected natural ecological water demand methods. Then, natural ecological water demand at the lower reaches area of the Heihe River at present year is calculated with groundwater storage volume change method, Aверьянов, Г. B method, and measured actual water volume method etc. In comparison, the natural ecological water demand at the lower reaches area of the Heihe River at present year is 0.391～0.405 billion m3.
机译：由于上游和中游用水量增加，进入下游河道的水量减少，黑河下游地区的生态和环境处于恶化的趋势。为了恢复和改善黑河下游地区的生态，必须确保各种生态需水量。利用1998年的遥感影像对黑河下游地区的自然植被面积进行了解释，并对黑河下游地区的自然生态需水量进行了分析，从而得出了下游地区的自然生态需水量。根据选定的自然生态需水量计算出黑河流域的水域面积。然后，利用地下水蓄水量变化法Aверьянов，Г，计算出黑河下游地区目前的自然生态需水量。相比之下，目前黑河下游地区的自然生态需水量为0.391〜4.05亿立方米。

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