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首页> 外文期刊>Journal of Engineering & Applied Sciences >Using Remote Sensing and GIS for Assessment of Irrigation Performance in the Al-Hindiyah Barrage, Babil City, Iraq
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Using Remote Sensing and GIS for Assessment of Irrigation Performance in the Al-Hindiyah Barrage, Babil City, Iraq

机译：利用遥感和GIS进行伊拉克Al-Hindiyah Barrage灌溉性能评估灌溉性能

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Problems and concerns over water lack would affect irrigated agriculture. Iraq suffers from shortage water and the principle use of water is for irrigation. Hence, better performance of irrigation saves more water, which can be used for other purposes. The objective of the research is to assess the irrigation performance in Al-Hindiyah barrage located in Babil city, in middle of Iraq using GIS and remote sensing. In order to achieve this objective, performance of the irrigation season for 2014 was defined upon five indicators, namely relative water supply, general consumed ratio, relative evapotranspiration, depleted fraction and crop water deficit. Actual and potential parameters of evapotranspiration used in determination of these indicators were estimated depending on the method of Surface Energy Balance Algorithm for Land (SEBAL) by using a series of Landsat OLI satellite images. The range of seasonal averages of these indicators was between (0.138 and 2.704) for overall consumed proportion (0.395-7.129) for relative water supply (0.061-1.136) for depleted fraction (0.407-0.464) for relative evapotranspiration and (200.757-247.474) mm/month for crop water deficit. The result of this study indicated that the performance of the irrigation was poor according to the average of seasonal values of all performance indicators. The performance indicators revealed that the supplied irrigation water was less than needed. Thus, it was determined that nearness to the source might be an advantage to obtain water, and there should be a concurrence between the period when water is provided and the period when it is needed.
机译：对水缺乏的问题和担忧会影响灌溉农业。伊拉克患有短缺水，水的原理使用是灌溉。因此，更好的灌溉性能节省了更多的水，这可以用于其他目的。该研究的目的是评估位于伊拉克中部的Al-Hindiyah Barrage的灌溉表现，使用GIS和遥感。为了实现这一目标，2014年灌溉季节的性能被定义为五个指标，即相对供水，一般消费比率，相对蒸发，耗尽分数和作物水资源缺陷。根据使用一系列Landsat Oli卫星图像，根据土地（Sebal）的表面能平衡算法的方法来估计用于测定这些指标的实际和潜在参数。对于相对供水（0.061-1.136），对于相对蒸散的相对供水（0.061-1.136），用于相对供水（0.061-1.136）的整体消耗比例（0.395-7.129）之间的季节性平均范围为（0.395-7.129）之间（0.061-1.136）之间（200.757-247.474）毫米/月作物水资源赤字。本研究结果表明，根据所有绩效指标的季节性值的平均值，灌溉的性能差。绩效指标显示提供的灌溉水比需要少。因此，确定近的源近的可能是获得水的优点，并且在提供水的时期和所需时段之间应该存在并发。

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