节水灌溉模式,water saving irrigation mode
1)water saving irrigation mode节水灌溉模式
1.To obtain the single cropping rice s irrigation quota and water use efficiency inwater saving irrigation mode,studies were carried on in these experiment stations.为了适应农业种植结构的调整,获取单季稻节水灌溉模式灌溉定额与水分利用率,按不同地理特征,结合农业灌溉分区,在浙江省杭嘉湖平原地区、金衢盆地区、沿海平原区建立灌溉试验站,全面开展单季水稻节水灌溉试验研究。
英文短句/例句
1.Water Saving Irrigation Pattern Study of Drip Irrigation for Tomato under Mulch in Solar Greenhouse;日光温室膜下滴灌番茄节水灌溉模式试验研究
2.Study on Irrigation Model for Water-saving Irrigation of Weihe Basin in Shaanxi Province渭河流域陕西灌区节水灌溉模式分析研究
3.Study on Soil Moisture Movements and Water-saving Modes in Luanjing Irrigation Area, Inner Mongolia;内蒙古孪井灌区土壤水分运移及节水灌溉模式的研究
4.The Research of the Appraisement About Sunlight Greenhouse Water Saving Irrigation Mode on the Basis of Fuzzy Mtter-element Mthods基于模糊物元方法的日光温室节水灌溉模式评价研究
5.Study on Technology for Water-saving Irrigation and Its Developmental Mode;安徽省节水灌溉技术及其发展模式研究
6.Water-saving irrigation management status in quo and modes;节水灌溉发展现状与管理模式研究综述
7.Research on the Irrigation System Establishment and Water-saving Mode for Tobacco Area in LiangShan State凉山烟区灌溉体系建立与节水模式研究
8.Study of Water Efficiency Potentiality and Modes on Water Saving Irrigation of Agricultural Comprehensive Development in Anhui Province安徽省农业综合开发节水灌溉潜力与模式研究
9.Analysis of scaling variation of irrigation water use efficiency under typical irrigation regimes典型灌溉模式下灌溉水利用效率尺度变化模拟
10.Effect Evaluation and Water Saving Mode Research on Bank-Well Irrigation Region in Ningxia Southern Mountainous Region;宁夏南部山区库井灌区灌溉效果评价及节水模式研究
11.Research on Water-Saving Irrigation Technique Development Model and Gravity Sprinkler Irrigation Application in Arid Areas Xinjiang;新疆干旱区节水灌溉工程技术发展模式与自压喷灌技术应用研究
12.Research on Slight Saline Water Irrigation Modes in Hetao Irrigation Area河套灌区区域微咸水灌溉模式的研究
13.Utilization of Water and Nitrogen and Yield Formation under Three Limited Irrigation Schedules in Winter Wheat冬小麦节水栽培三种灌溉模式的水氮利用与产量形成
14.Changing of Water and Soil Environment before and after Water-saving Irrigation in Hetao Irrigation and the Simulation of Water and Fertilizer Efficiency in Farmland河套灌区节水溉灌溉前后水土环境变化及农田水肥效率模拟
15.Developmental Research on Soil-bin Trolley for Self-propelled Water-saving Irrigation;行走式节水灌溉土槽台车的开发研究
16.Optimization for Water-saving Irrigation Schemes Based on TOPSIS ModelTOPSIS模型的节水灌溉方案优选
17.Study on Water-Saving Mechanism and Application Pattern of Alternate Partial Root-Zone Irrigation in the Desert Oasis of Minqin County;民勤荒漠绿洲区棉花根系分区交替灌溉的节水机理与模式研究
18.Application of semi-fixed moving irrigation technique in water-saving irrigation project for Zhen′an area半固定式移动灌溉技术在振安区节水灌溉工程中的应用
相关短句/例句
self-propelled water-saving irrigation行走式节水灌溉
1.Developmental Research on Soil-bin Trolley for Self-propelled Water-saving Irrigation;行走式节水灌溉土槽台车的开发研究
2.Theself-propelled water-saving irrigation technology offers the potent guarantee for the food production in arid region.行走式节水灌溉技术的出现,为我国三北干旱地区的粮食生产提供了有力保障。
3.management of irrigation water is a important link in the application ofself-propelled water-saving irrigation.灌溉用水管理是行走式节水灌溉技术应用的一个重要环节。
3)water-saving irrigation pattern节水灌溉方式
1.Application of integrated appraisal method towater-saving irrigation pattern selection;综合评价方法在节水灌溉方式选择中的应用
4)water sowing irrigation types节水灌溉形式
5)saving water irrigation节水灌溉
1.Present situation and countermeasures of developingsaving water irrigation in canal irrigated region;渠灌类型区节水灌溉发展的现状及对策
2.Optimization design on technique project forsaving water irrigation;节水灌溉技术方案的优化设计
3.Saving water irrigation is the base that promotes agricultural sustainable development and carries out agricultural high-yield high-efficience-high quality and low cost.节水灌溉是促进农业可持续发展,实现农业"两高一优一低"的基础。
6)Water saving Irrigation节水灌溉
1.Review on scaling analysis approaches for agricultural water saving irrigation;农业节水灌溉尺度分析方法研究进展
2.Leaf-air temperature difference of rice and water deficit diagnose under water saving irrigation;节水灌溉条件下水稻叶气温差变化规律与水分亏缺诊断试验研究
3.Discussion on the function and route of water saving irrigation in Xinjiang;试论新疆发展节水灌溉的作用与途径
延伸阅读
节水灌溉减少渠系水量损失，节约农田灌溉用水，使有限的灌溉水源发挥最大增产效益的技术措施。随着工农业的发展和生活水平的提高，人类对水的需求不断增长。20世纪中叶以来，中国和许多国家都出现了不同程度的水资源供需矛盾，影响或限制了生产的发展。灌溉用水在人类用水中所占比重很大，大致在70％（发达国家）至90％（发展中国家）之间。但是，灌溉水有效利用系数很低，平均仅50％左右，即通过工程措施引入灌区的水量大约有一半损失掉了。因此，采取节水灌溉措施，使单位水量发挥可能最大的经济效益，这在水资源紧缺条件下势在必行。内容 节水灌溉主要包括两个方面。一是采取措施减少灌溉渠系的水量损失，即提高灌溉水的有效利用系数，按照作物灌溉制度，适时适量把水送入农田；二是改进灌溉制度，调整作物布局，充分而合理地利用雨水、地下水，进行补充性灌溉，使一定的灌溉水源灌溉更多的农田。作物单位面积产量与灌水量的关系也受报酬递减率的支配，作物产量达到一定水平时，它的增长率即低于灌水量的增长率，再多灌水甚至会使产量下降。这就使人们有可能选择最经济的灌溉定额，进行不充分灌溉，用既定灌溉水量灌溉更大的面积，使灌区农业总产达到最大。措施 节水灌溉措施可概括为：①改进农田灌水方法，减少深层渗漏、地表蒸发和田面流失。沟灌和隔沟灌，畦灌和小畦灌以及水稻田的浅灌、湿润灌等传统地面灌溉技术，比较省水，要避免大水漫灌和串灌等。喷灌、滴灌、微灌、地下灌溉等先进灌水方法，一般比地面灌水方法可节水30％～40％，但成本较高，管理运用复杂,在有条件地区可以推广。地膜覆盖或田面盖草,可显著地减少地面蒸发，且有保墒保温作用，也有推广价值。②采取渠道防渗及管道输水，减少输水损失。可采用渠道衬砌以减少渗漏损失。管道输水有地下埋设固定管道及地面活动软管两种。后者已在华北平原缺水地区大面积推广，可减少用水量30％左右，是简易可行的节水有效措施。③加强灌溉管理，实行科学用水，执行按方收费。灌区要加强维修管理制度，防止渠道决口及建筑物漏水；渠道行水期间，要坚持昼夜灌水，尽量减少渠道退水。为实现按方收费，必须具备量水设施。④改进灌溉制度，保证作物生长关键期灌水。作物生长旺盛期需水较多，关键期(如玉米抽顶花期、水麦孕穗期等)灌水对产量影响最大。在水量有限情况下，应保证灌好关键水，适当减少非关键期灌水。同时，在非生长季节进行储水灌溉，为小麦冬灌及棉田保墒灌，也可以缓解春季用水高峰期供需矛盾。⑤改进耕作措施，如平整土地，中耕、松土及耙磨保墒等，也有助于节水。展望 随着人口日益增长、灌溉水源逐渐减少和灌溉成本越来越高，实行节水灌溉，建立节水型农业，已成为世界范围的发展方向。今后在水资源开发利用，新灌区兴建和已成灌区改建、扩建中，节水灌溉都是应该优先考虑的问题。
