天门引汉灌区水平衡测试分析 Test Analysis on Water Balance of Hanjiang River Diversion Irrigation Area in Tianmen

随着经济社会发展，水资源、水生态环境压力日益显现，水资源管理面临重大挑战。大型灌区所控制的灌溉面积大，情况复杂，对灌区进行水平衡测试，科学合理的进行用水水平分析，对建立并实施水资源管理控制指标具有十分重要的意义。本文通过对汉江流域天门引汉灌区水平衡测试分析，确定了大型灌区可行的水平衡测试方法，采用“点”“线”“面”相结合的方法对灌区开展测试，依据收集的资料和实测数据全面计算、分析、评价了灌区用水技术指标，掌握了灌区用水现状，为灌区用水管理提供了一手真实可靠的数据支撑。 With the development of economy and society, the pressure on water resource and aquatic ecological environment is increasingly prominent. Water resource management is confronted with daunting chal-lenges. Conducting water balance test and rational and scientific analysis over water consumption is of great significance to establishing and implementing management and control index of water resource in view of the characteristics of large-scale irrigation area featuring vast irrigation area and complicated situations. Through the test analysis on water balance in the Tianmen Diversion Irrigation Area of the Hanjiang River basin, this study identifies feasible water balance testing methods of large-scale irrigation area and adopts a method integrating “point, line and surface” to conduct the test to the irrigation area. According to the materials and data collected, this paper conducts an overall calculation, analysis and evaluation on the technical index of the irrigation area and learns about the current situation of water utilization, which provides the first-hand reliable data for water management of the irrigation area.