陕北煤炭开采地区河道生态基流的计算与盈亏分析

发布时间：2018-06-24 03:08

本文选题：环境学 + 窟野河　；参考：《安全与环境学报》2017年04期

【摘要】：陕北地区水资源非常短缺,特别是煤炭开采地区。以窟野河流域为例,首先采用基流比例法、Tenent法和最小月平均流量法分别计算了温家川站的生态基流;其次通过对比分析各种计算结果得出基流推荐值,分析了生态基流的盈缺状况,并探讨了造成生态基流缺失的主要因素。结果表明,窟野河温家川站的年生态基流推荐值为3.50 m~3/s,年内丰水期、平水期、枯水期的推荐值分别为6.00 m~3/s、3.50 m~3/s、2.50 m~3/s。1999年之前生态基流还有很大的盈余,但近些年流量明显减少,4、5、6月平均流量都不能满足生态基流,其中煤炭开采是主要因素之一。
[Abstract]:Water resources in northern Shaanxi are very short, especially in coal mining areas. Taking the Grotto River Basin as an example, the basic flow ratio method and the minimum monthly average flow method are used to calculate the ecological basic flow of Wenjiachuan station respectively, and then the recommended value of the base flow is obtained by comparing and analyzing various calculation results. The surplus and deficiency of ecological basic flow are analyzed, and the main factors that cause the loss of ecological basic flow are discussed. The results show that the recommended value of the annual ecological basic flow is 3.50 mm2 / 3 / s at Wenjiachuan station in the Grottoes River, and the recommended value of the annual ecological basal flow is 6.00 MN / 3 / 3 / s / s2.50 m~3/s.1999 before the annual high water season, average water period and low water period, respectively, and there is still a large surplus in the ecological base flow before the year of 2.50 m~3/s.1999. However, in recent years, the discharge has been significantly reduced by 4%, and the average discharge in June can not meet the ecological basic flow, among which coal mining is one of the main factors.
【作者单位】：榆林学院建筑工程学院;西北旱区生态水利工程国家重点实验室培育基地(西安理工大学);
【基金】：陕西省自然科学基金项目(2014JM2-5063) 榆林学院博士科研启动基金项目(16GK07)
【分类号】：P333;X143

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