黄旗海湿地水量模拟与平衡分析

发布时间：2018-05-05 00:18

本文选题：水循环模型 + 入湖水量　；参考：《干旱区研究》2017年02期

【摘要】：黄旗海湿地是华北地区重要的生态安全屏障,湿地所处的黄旗海盆地属于农牧交错区和多民族聚居区,生态十分脆弱。通过分析湿地退化原因,提出了平原区深层地下水过量开采是黄旗海湖水干枯的直接原因。建立了湿地湖水水量平衡分析模型,模拟不同降水和规划条件下入湖水量组成及其变化。分析表明:丰、平、枯水年份可以维持的平均水面面积分别为29.83 km~2、31.67 km~2和23.79 km~2;最大水面出现在年底,湖泊未来水文情势不同于历史时期,因地表来水呈减少趋势,湖水面的维持将越来越依赖地下水。2020年和2030年生态修复可维持湖水面面积目标分别为20 km~2和30 km~2。研究成果可为黄旗海流域水资源开发与水生态保护规划提供科学依据。
[Abstract]:The Yellow Banner Sea Wetland is an important ecological security barrier in North China. The Yellow Banner Sea Basin located in the Yellow Banner Sea Basin belongs to the interlaced area of agriculture and animal husbandry and the multi-ethnic settlement area, and the ecology is very fragile. Based on the analysis of the causes of wetland degradation, it is pointed out that excessive exploitation of deep groundwater in plain area is the direct cause of water drying up in Huangqihai Lake. A water balance analysis model of wetland lake was established to simulate the composition and variation of water flow in wetland lake under different precipitation and planning conditions. The analysis shows that the average water surface area can be maintained in the year of abundant, flat and dry water is 29.83 km2 231.67 km~2 and 23.79 km2, respectively. The maximum water level appears at the end of the year, and the future hydrological situation of the lake is different from that of the historical period, because of the decreasing trend of the surface water coming from the lake. The maintenance of lake surface will be more and more dependent on groundwater. In 2020 and 2030, the ecological restoration can maintain the lake surface area targets of 20 km~2 and 30 km 路m ~ (2), respectively. The research results can provide scientific basis for water resources development and water ecological protection planning in the Yellow Banner Sea Basin.
【作者单位】：中国水利水电科学研究院;
【基金】：国家自然科学基金项目(41272273)
【分类号】：P333

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