Water resources systems of irrigation district are composed with surface water system and groundwater system.
灌区水资源系统由地表水系统与地下水系统构成。
Drought is the biggest disturbance of dependable crop and heavy-producing grain output to the irrigation district.
通过这些指标说明干旱是关中灌区难以实现稳产、高产最大的障碍。
In this paper, the data from wheat irrigation experiment during 1986 ~ 1991 in the irrigation district was analysed.
讨论了作物水分生产函数的意义和模型的选用。对灌区内1986 ~ 1991年的小麦灌溉试验资料进行了分析。
A case study indicates that this method is efficient and accurate for the prediction of water demand in irrigation district.
分析表明，该法用于灌区作物需水预报有效、可行。
This paper discussed the unsaturated soil water diffusivity and its effect factors in waste water irrigation district in Beijing.
对北京市污灌区非饱和土壤水扩散率及其影响因素进行了研究。
For homeowners looking at planting trees or other crops, consider checking to see if local irrigation district water is available.
对于业主看种植树木或其他作物，考虑检查，是否对本地灌区水可用。
The article presents the design means, features and analysis of the project's benefit in Yuannaoling, Xiangtun Irrigation District.
文中介绍了襄屯灌区元脑岭喷灌工程规划设计的方法、特点及工程效益计算分析情况。
The results showed that the reference crop evapotranspiration in Hunpu irrigation district increased first and then decreased gradually.
结果表明，在生育期内浑蒲灌区参考作物需水量的变化规律表现为先增大后逐渐减小。
Flow measurement is an important means for using water according to plan and charging according to water quantity in irrigation district.
灌区量水是灌区实行计划用水、按方收费的重要手段。
The main function of quasi-basin management unit is to carry out unified management of water affairs in the Dujiangyan Irrigation District.
其准流域管理机构的主要职能，就是对都江堰灌区的涉水事务实行统一管理。
Sangganhe irrigation district on the upper reaches of Yongdinghe River is one of large-scale artesian irrigation districts in Shanxi province.
永定河上游桑干河灌区是山西省大型自流灌区之一。
It has realistic significance to research on using working gate with submerged discharge to measure water in canal for slab irrigation district.
对于平原灌区，研究利用以淹没出流为主的工作闸门进行渠道量水具有现实意义。
The optimum policy of conjunctive operation of canal and well can be widely used in irrigation engineering management of the Hetao irrigation district.
渠井联合运用的优化决策，可广泛应用于河套引黄灌区灌排工程配套及管理之中。
The article analyses the condition of drought and the prevention measure of drought and the result of irrigation of Pishihang Irrigation District in 2001.
文章分析了淠史杭灌区2001年特大干旱旱情、抗旱措施及效益。
This paper applied RS technology in decision-making of irrigation management to settle the existing problem in irrigation management of irrigation district.
根据目前灌区灌溉管理存在的问题，将RS技术应用在灌溉管理决策中。
It also provides scientific basis for making water-saving plan, the dynamic distribution and the irrigation prediction of the water-saving irrigation district.
可为节水灌溉制度的制定、节水型灌区动态配水及灌溉预报等提供科学依据。
The crops planting scale in the irrigation district is usually determined according to the agriculture general programming, the crops planting and cultivation custom.
灌区作物种植比例通常是根据农业总体区划、作物种植习惯和耕作习惯确定的。
The model has been tested in an irrigation district of Jiangsu province, and the result showed that the model could provide both high precision and good practicability.
以江苏省某灌区为例，对灌区实时灌溉预报模型进行了验证。结果表明，预报精度和应用性得到了较好的统一。
Comprehensive analysis and research on the theory and practice of water use efficiency in irrigation district is conducted by using static plane and dynamic space models.
用静态平面和动态空间两种模型对灌区水资源利用系数进行了理论和实践的综合分析研究。
Groundwater table is shallow in Hetao irrigation district, and groundwater exploitation may decrease water demand from Yellow River to ensure water supply in lower reaches.
内蒙古河套灌区地下水位浅，合理利用地下水可以减少灌区引黄水量，保证黄河下游用水。
For the convenience of application, the paper also presents the pipe network coefficient formula for typical branching network and loop network in well irrigation district.
为了便于实际应用，同时给出了井灌区管灌典型情况的树状网和环状网管网系数的计算公式。
Irrigation district water-measuring is the important method and guarantee of practising using water planly, assignment accurately, using irrigation water equably and meterage.
灌区量水，是实行计划用水、正确分配、合理使用灌溉水的重要手段，是实行计量收费的重要保证。
The problems of water_and_salt balance is studied from irrigation district integer, and water_and_salt balance problem at different regions, different levels of soil profiles.
对灌区的水盐平衡问题进行了研究，包括灌区总体上、灌区内不同地区、土壤剖面的不同层次上的盐分平衡问题。
Experimental study of effects of surge irrigation, PAM, and irrigation with saline ground water on soil water erosion was carried out in Hetao irrigation District, Inner Mongolia.
在内蒙古河套灌区采用波涌灌溉，施用PAM(土壤结构稳定剂)和利用地下咸水灌溉等不同处理进行了玉米地水蚀作用的试验研究。
Then using the method of AHP to calculate and analyze the data, the corresponding index of the non-point pollution degree in irrigation district can be get to evaluate the rank oft…
通过AHP方法，对所得到的数据进行计算分析，最后可得出灌区面源污染程度的相应指数，从而定出灌区面源污染的等级，这为灌区建设计划的制定和实施提供很好的依据。
This paper has made systematic analysis on groundwater resources in Fenhe River Irrigation District Shanxi Province by applied the relevant systematic analysis theory of groundwater.
本文运用有关地下水系统理论，对山西省汾河灌区地下水资源作系统分析。
The"311-A"regression design was adopted to study the optimum ratio of N, P and K fertilizers on maize field of Yellow River Pumping Irrigation District in Cheng Xitan, Yanchi Ningxia.
运用“311-A”试验设计，探讨宁夏盐池县城西滩扬黄灌区玉米氮、磷、钾肥料的最佳配比。
Research provides the foundation for the water-heat-salt coupling simulation on freezing-thawing soils and the establishment of autumn irrigation schedule in Hetao irrigation District.
该研究结果为河套灌区冻融土壤水热盐耦合模拟的研究和秋浇制度的制定提供了基础理论依据。
According to the characteristics of the irrigation district, this article has introduced the methods and measures of sediment disposals for the WSI based on the topographical conditions.
本文根据灌区特点，提出了从灌区地形、地理位置出发，探讨了引黄节水灌溉泥沙处理的方法和措施。
The article analyses the utilization of water resources in Pi River irrigation district of Feixi County, points out the existing problem and proposes some ways to solve the problem as well.
通过对肥西县淠河灌区水资源平衡分析，提出水资源开发利用存在的问题及解决的途径。
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