| 摘要: |
| 【目的】农田灌溉水有效利用系数是衡量农田灌溉用水水平的重要指标，为探索兴安盟农田灌溉水有效利用系数，以及限制灌溉水利用系数的主要影响因子。【方法】采用首尾测算法测算了兴安盟不同类型以及全盟的灌溉水有效利用系数，并进行了影响因素分析。【结果】兴安盟大型灌区、中型灌区、小型灌区与纯井灌区灌溉水有效利用系数分别为0.5102、0.4629、0.3957与0.6361，全盟灌溉水有效利用系数为0.5454。兴安盟灌溉水有效利用系数持续上升，灌区规模、灌溉方式、灌区投资与管理、节水灌溉面积和区域降雨量五个因素均对其产生一定影响。【结论】提出了进一步提高灌溉水有效利用系数测算精度和灌区优化的建议。 |
| 关键词: 农田灌溉水有效利用系数；测算方法；合理性分析；影响因素 |
| DOI： |
| 分类号:S274.1 |
| 基金项目: |
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| Calculation and Analysis of Effective Utilization Coefficient of Irrigation Water in Xing''an League |
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ZhuFumin1,2,3, LiBo4
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1.Xing'2.'3.an League flood control and drought relief dispatching center;4.Inner Mongolian Research Institute on HydraulicSciences
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| Abstract: |
| 【Objective】The effective utilization coefficient of irrigation water is an important index to measure the level of irrigation water.【Method】In this paper, the effective utilization coefficient of irrigation water of different types and the whole area in Xing''an League is calculated by the “head-tail test”, and the influence factors were analyzed.【Result】The effective utilization coefficients of irrigation water in large irrigation area, medium irrigation area, small irrigation area and well irrigation areas of Xing''an League are 0.5102, 0.4629, 0.3957 and 0.6361, respectively. The effective utilization coefficients of irrigation water in the whole league is 0.5454. The effective utilization coefficient of irrigation water in Xing ''an League continues to rise, and the scale of irrigated areas, irrigation methods, investment and management of irrigated areas, water-saving irrigation area and regional rainfall all have a certain influence on it. 【Conclusion】Suggestions are put forward to further improve the estimation accuracy of the effective utilization coefficient of irrigation water and optimize the irrigation area. |
| Key words: Effective Utilization Coefficient of Irrigation Water，Calculation method，Rationality analysis，influence factor |
