文档介绍：该【农业水资源 】是由【小屁孩】上传分享，文档一共【66】页，该文档可以免费在线阅读，需要了解更多关于【农业水资源 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。SymposiumonEnvironmentalChangesandEfficientUseofAgriculturalResources,(~22,2011,Shijiazhuang,China)AgriculturalwatersavingstudiesforasustainablewatermanagementintheNorthChinaPlain(NCP)ChangmingLiuAgriculturalResourcesResearchCenter,CASKeyLab,IGSNRR,CAS,WaterScienceCollegeBNU2021/10/101OutlineMajorfeaturesofNCP’swaterresourcesMainWaterissues:rapidsocial-economicdevelopmentandclimatechangeAgriculturalwater-saving:thehighlightsDiscussionsofsomeideasofwater-savingAgriculturalwater-saving:Policy&Countermeasures2021/10/102MajorfeaturesofNCP’swaterresourcesAnnualprecipitationinmmAverageannualprecipitationfrom1951to2008TheNCP:inthesemi-arid&semi-(oSeptember)contributesmorethan80%ofannualrainfall2021/10/103MajorfeaturesofNCP’swaterresourcesPotentialevapotrnspirationinmmAnnualPotentialevapotrnspirationintheNCPishighvariesbetween796and1257mmresultinginmuchwaterlossAverageannualPotentialevapotrnspirationfrom1951to20082021/10/104MajorfeaturesofNCP’..It’’’swaterresourcesAnnualrunoffinmmSharpdeclineriverflowsintothesea2021/10/107PerCapitawateramountMajorfeaturesofChina’swaterresources2021/10/108WaterConsumptiontoavalaiblewaterresourcesin%inChinaAfterDrShaoYisheng,MinistryofConstructionWateruse/wateravailabilityin%2021/10/109MajorfeaturesofNCP’:37km3/a(2009)(2009),%oftotalwithdrawalWater-savingisverycrucial2021/10/1010