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首页> 外文期刊>Acta horticulturae et regiotecturae >DETERMINING THE CHARACTERISTICS OF DIRECT RUNOFF FROM REAL RAIN USING GIS ENVIRONMENT
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DETERMINING THE CHARACTERISTICS OF DIRECT RUNOFF FROM REAL RAIN USING GIS ENVIRONMENT

机译：利用GIS环境确定直接降雨径流特征

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摘要

The selected SCS-CN method is used worldwide and adapted to the conditions of Slovakia. GIS environment provides an opportunity to simulate changes in land use, and then to calculate the total volume of water from the river and peak water flow in theriver bed of the stream. The simulation was done for two rainfall events, 72 mm and 42.6 mm, which were measured in precipitation station in Jelenec (a village situated next to the area of interest). The calculation was made for 4 possible scenarios -current land use, forest, arable land and grassland and pasture. Culmination discharge and time of outflow from rainfall 72 mm for current land use were calculated using the NRCS method. The calculation of water runoff volume showed that similar values weremeasured for the rainfall of 72 mm and rainfall 42.6 mm in case of AMC-lll.The highest values of water runoff volume were marked in the case of arable land in all calculations, the lowest one for forest. Comparison of designed stream cross section and calculated culmination discharge allowed us to determine the point of outflow from the river bed of the Drevenica stream.
机译：所选的SCS-CN方法已在全球范围内使用，并适应了斯洛伐克的条件。 GIS环境提供了一个机会，可以模拟土地利用的变化，然后计算出河流的总水量以及河流水流中的峰值水流量。对两个降雨事件（分别为72 mm和42.6 mm）进行了模拟，这两个降雨事件是在Jelenec（位于感兴趣区域附近的一个村庄）的降水站进行测量的。针对四种可能的方案进行了计算-当前土地使用，森林，耕地以及草地和牧场。使用NRCS方法计算了目前土地使用的72 mm降雨的排泄量和流出量。水径流量的计算表明，对于AMC-lll，72毫米降雨量和42.6毫米降雨量的测量值相似。在所有计算中，耕地均标出了最高径流量，最低值为森林。设计河流横截面和计算出的最终排放量的比较使我们能够确定Drevenica河流河床的流出点。

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