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当前位置: 首页 > 文章 > 宁夏汉延渠灌区灌溉用水量变化影响因素分析 节水灌溉 2018 (11) 61-64+72
Position: Home > Articles > Analysis of Influencing Factors for Irrigation Water Change in Ningxia Irrigated District Water Saving Irrigation 2018 (11) 61-64+72

宁夏汉延渠灌区灌溉用水量变化影响因素分析

作  者：
王海永;沈红;丛振涛;马铭
关键词：
灌溉制度;灌溉面积;种植结构;灌溉用水量
摘  要：
汉延渠灌区农业灌溉历史悠久,近年来灌溉用水量持续减少。开展汉延渠灌区用水量规律分析研究,探索用水量变化影响因素,对于灌区优化水资源配置和现代化节水型灌区建设意义重大。以宁夏汉延渠灌区为研究对象,分析灌区灌溉制度、有效灌溉面积及种植结构的变化趋势,建立了3种影响因素与灌溉用水节水量数学模型,计算分析几种影响因子贡献率,得出该灌区灌溉用水量减少原因的排序是灌溉面积萎缩及种植结构调整、渠系水利用系数提升、优化灌溉制度的结论,对类似灌区水资源优化配置和现代化节水型灌区建设具有一定参考价值。
译  名：
Analysis of Influencing Factors for Irrigation Water Change in Ningxia Irrigated District
作  者：
WANG Hai-yong;SHENG Hong;CONG Zhen-tao;MA Ming;Ningxia Hanyan Canal Administration Station;Civil Engineering Department,Tsinghua University;
关键词：
irrigation schedule;;irrigation area;;crop pattern;;irrigation water consumption
摘  要：
The Hanyan-canal irrigated district has a long-term history in its irrigation agriculture. In recent years,its total water usage for local irrigation has been witnessed a continuous decreasing trend. The analysis of water using amount change law and its influencing factors has important significance for optimizing water resources allocation and constructing modern water-saving irrigation district.This study takes the Hanyan-canal irrigation district in Ningxia Autonomous Region as the target to explore the potential impacts factors related to the irrigation schedule,effective irrigated area and plantation structure. Based on the explored relationships of three factors with total saved water quantity,three models are established to quantify the contribution associated with individual impact factor. Via attribution analysis,it turns out that a shrinkage of local irrigated areas and the adjustment of growing patterns are identified as the primary reasons for reducing the local total irrigated water consumption,then followed by the improved canal effectiveness index. The conclusions drawn by this study provide insights on how to allocate limited water resource and design a more sustainable water-saving program for irrigated areas like Hanyan district.

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