小型灌区灌溉水利用系数的测算与分析
首发时间:2014-12-10
摘要:本试验以节水灌溉模式下昆山市小型水稻灌区为研究对象,通过对阴云圩灌区和天福灌区灌溉水利用系数的测算分析对比,探讨在农业现代化进程中,测算小型水稻灌区节水灌溉模式下灌溉水利用系数的方法及优缺点。阴云圩灌区测试点灌溉水利用系数为0.639,天福灌区测试点灌溉水利用系数为0.690。结果表明,阴云圩灌区测算优势为测算成本较低、实用性较强,缺点为测量净灌溉水深时人工误差较大;天福灌区测算优势为自动化测量与数据自动远传,节省人力成本的同时为精准灌溉、节水灌溉提供决策依据和数据支撑,缺点为设备成本及维护成本较高,测算长时段连续数据时仪器的稳定性有待提高。
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Calculation and analysis irrigation efficiency of small-sized irrigation district
Abstract:In this experiment, the research object is small-sized rice irrigation of Kunshan City in water saving irrigation. By analyzing and comparing the irrigation efficiency of Yinyunwei and Tianfu irrigation district, estimates the advantages and disadvantages of the irrigation efficiency of small-sized rice irrigation district in water saving irrigation in Agricultural modernization.The irrigation efficiency of Yinyunwei irrigation district is 0.639, the irrigation efficiency of Tianfu irrigation district is 0.690.The results show the advantages of Yinyunwei irrigation district is cost lower and higher practicality, but human error in net irrigation depth is larger; the advantages of Tianfu irrigation district is automatic measurement and automatic transmission of data, but the disadvantage is the high cost of equipment and maintenance, the stability of long term and continuous data of the instrument in measurement also needs to be improved.
Keywords: head-tail method small-sized irrigation district irrigation efficiency water saving irrigation
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