灌区灌溉水利用系数计算与分析

宝鸡峡灌区灌溉水利用系数计算与分析第1页目录摘要............................................................................................................................................2第一章绪论..............................................................................................................................31.1研究意义..................................................................................................................31.2研究现状..................................................................................................................31.2.1常用测算方法简介...........................................................................................31.2.2现有测定方法存在的问题...............................................................................7第二章研究目标和研究内容..................................................................................................92.1研究目标..................................................................................................................92.2研究的主要内容......................................................................................................9第三章宝鸡峡灌区灌溉水利用系数计算与分析................................................................103.1宝鸡峡灌区灌溉水利用系数计算........................................................................103.1.1宝鸡峡灌区基本概况.....................................................................................103.1.2宝鸡峡灌区灌溉水利用系数测算步骤.........................................................113.2宝鸡峡灌区灌溉水利用系数的影响因素分析....................................................223.2.1社会经济状况的影响.....................................................................................223.2.2种植结构的影响.............................................................................................233.2.3灌区管理状况的影响.....................................................................................243.2.4灌区工程地质地理位置的影响.....................................................................253.2.5灌区节水灌溉措施的影响.............................................................................263.2.6不同水文年份的影响.....................................................................................26第四章存在问题及解决措施................................................................................................274.1存在的问题............................................................................................................274.2解决办法................................................................................................................274.2.1确定毛灌溉用水总量.....................................................................................284.2.2计算净灌溉用水量.........................................................................................284.2.2计算灌溉水利用系数.....................................................................................29第五章结论..........................................................................................................................32参考文献..................................................................................................................................34附录......................................................................................................................................35致谢......................................................................................................................................45宝鸡峡灌区灌溉水利用系数计算与分析第2页宝鸡峡灌区灌溉水利用系数计算与分析指导老师：王密侠作者：陆通摘要：本文以陕西省宝鸡峡灌区为研究对象，通过对灌区进行实地调查、收集资料，利用灌区灌溉用水管理资料、气象资料、流量资料、灌溉试验，依据灌区渠首每日引水量（退水量），结合灌区各支渠配水水量及斗口引水资料计算灌区各干、支渠利用系数及灌区灌溉水利用系数；渠首到斗口的利用系数利用灌区历年实际配水资料获得；灌区斗渠，农渠，毛渠渠道水利用系数和田间水利用系数借鉴灌区灌溉实践经验，利用调查资料分析计算获得；最后利用渠首到斗口的水利用系数和斗口到田间的水利用系数计算全灌区的灌溉水利用系数。通过研究灌区灌溉水利用效率状况，分析灌溉水有效利用系数的影响因素，探索提高灌溉水有效利用系数的节水措施，对目前灌溉水利用系数测算分析方法及存在问题进行分析研究。关键词：宝鸡峡灌区；渠系水利用系数；田间水利用系数；农业节水CalculationandAnalysisofTypicalIrrigationDistrictWaterUseCoefficientAbstract：Inthispaper,ShaanxiProvince’sBaojixiaIrrigationdistrictistheresearchobject.FulluseofIrrigationWaterManagementInformation、Irrigationexperiments、Meteorologicaldata,flowdataobservationdata,Learningfromtheexperienceofirrigationpractice,calculatedandanalyzedthewaterusecoefficientofthisirrigationdistrict.AccordingtothedailyamountofwaterusedinIrrigationDistrict(returnflow),combingbranchcanalirrigationwaterandthewaterdiversioniformationateachmouthoflateralcanal,thecanalwaterusecoefficientofbranchcanalsandlateralcanalswerecalculated.Thewaterusecoefficientfromcanalheadtoeachlateralcanalmouthisgotfromwaterdistributioninformation.Canalwaterusecoefficientandfieldwaterusecoefficientiscalculatedusingsurveyinformation.Useofcanalwaterusecoefficientandthefieldwaterusecoefficientforirrigationwaterusecoefficient.Bystudyingthestatusofirrigationwateruseefficiency,analyzedtheaffectingfactorsofirrigationwaterusecoefficientandthecurrentirrigationwaterusecoefficientcalculationmethodanditsexistingproblems，inordertoexploremeanstosaveirrigationwater.Keywords:BaojixiaIrrigationDistrict;canalwaterutilizationcoefficient;fieldwateruse宝鸡峡灌区灌溉水利用系数计算与分析第3页第一章绪论1.1研究意义随着我国经济的快速增长，人口的逐步增加，水资源紧缺问题日益严重，水资源的合理开发和充分利用尤为重要。据相关资料显示，目前我