管理措施对Gezira灌溉方案水资源利用效率的影响——苏丹

A. Adam, A. W. Elamin, Amn Hamid
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引用次数: 0

摘要

本研究于2009年至2010年期间在苏丹Gezira计划进行,研究了管理措施对Gezira计划灌溉的不同作物水分利用效率的影响。数据是从计划管理部门收集的。本研究采用t检验进行组织。Cropwat4 Windows用于计算作物需水量(CWR)和净灌溉需水量(NIR)。结果表明:不同管理方式对水分利用效率影响显著(P ¤0.05)。高粱经济水分利用效率均值最高(0.48),棉花最低(0.19)。高粱和花生的技术水分利用效率均值最高(分别为0.34和0.30 kg/m3),棉花的技术水分利用效率均值最低(0.07 kg/m3)。小麦的水力水分利用效率均值最高(0.87),高粱的水力水分利用效率均值最低(0.59)。结论是,应制定和遵循适当的灌溉网管理、运行和调度技术准则。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of management practices on water use efficiency of Gezira irrigated scheme – Sudan
This study was conducted at Gezira scheme - Sudan during the period from 2009 to 2010 in a heavy clay soil to investigate the effect of management practices on water use efficiency for the different crops irrigated in Gezira scheme. The data was collected from the scheme Administration. The study was organized by using T-Test. Cropwat4 Windows was used to calculate crop water requirements (CWR) and the net irrigation requirements (NIR). The results showed that, Water use efficiency significantly (P ≤ 0.05) affected by the different management practices. Sorghum gave the highest mean value (0.48) of economic water use efficiency as compared to cotton which ranked the least (0.19). Technical water use efficiency for Sorghum and groundnut recorded the highest means values (0.34 and 0.30 kg/m3) while cotton gave the lowest (0.07 kg/m3). Wheat gave the highest mean values (0.87) of Hydraulic water use efficiency as compared to sorghum which ranked the least (0.59). It can be concluded that, proper technical guidelines for irrigation network management, operation and scheduling should be developed and followed.
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