论文部分内容阅读
抗御旱灾,首要的是解决水源问题,山东省滕州市在建设高效稳定可靠的水源,战胜旱灾上收到了可喜的成果。 该市水资源多年平均7.7亿立方米,其中地表水3.4亿立方米,加上入境客水共4.24亿立方米,地下水3.46亿立方米。由于降水集中,地表水绝大部分流入南四湖,多年平均利用量仅为0.8亿立方米。地下水可利用量为3.4亿立方米,占82％。可见,地下水是滕州水资源的主体,是目前开发利用的主要对象。 但由于水资源时空分布不均,加上需水量和开发利用程度的差异,造成水资源余缺不等。滕西平原区是历史上的井灌区、粮食高产区,加上煤田的开采量大,人口集中,需水量大,地下水开采水平高,机井密度达到每平
In the fight against drought, the first priority is to solve the problem of water resources. Tengzhou City, Shandong Province, has received encouraging results in building an efficient and stable water source and in overcoming the drought. The city’s water resources for many years average 770 million cubic meters, of which 340 million cubic meters of surface water, with a total of 424 million cubic meters of incoming passenger water, 346 million cubic meters of groundwater. Due to the concentrated precipitation, the vast majority of surface water flows into Nansi Lake, and the average utilization for many years is only 0.8 billion cubic meters. Groundwater availability is 340 million cubic meters, accounting for 82%. Visible, groundwater is the main body of water resources in Tengzhou, is currently the main object of development and utilization. However, due to the unequal distribution of water resources in time and space, coupled with the differences in water demand and development and utilization levels, resulting in a lack of water resources. Tengsi Plain is a historical well irrigation area, high-yield areas, coupled with the large-scale coal mining, population concentration, water demand, high groundwater exploitation, drilling density reached per ping