昌平| 岳池| 黔江| 隆回| 北仑| 漯河| 武川| 安达| 丹东| 宿迁| 阳城| 盐池| 台前| 沈阳| 台州| 顺昌| 阜阳| 灵寿| 望城| 卫辉| 赤壁| 临猗| 磐安| 儋州| 开平| 邹城| 湖口| 珊瑚岛| 明光| 崇州| 荔波| 青神| 德格| 白山| 阜阳| 武隆| 应城| 神池| 巴彦| 连平| 临安| 伊春| 桃源| 根河| 保康| 周村| 民乐| 成都| 临海| 安县| 铜山| 磁县| 宁南| 乌审旗| 亚东| 西丰| 文山| 姜堰| 民勤| 科尔沁右翼中旗| 固镇| 醴陵| 沂南| 胶州| 兴文| 岢岚| 天安门| 云溪| 永安| 察布查尔| 岗巴| 洋县| 萧县| 清苑| 建始| 刚察| 揭东| 新源| 郸城| 涡阳| 中阳| 吴忠| 盐田| 阳曲| 库尔勒| 科尔沁左翼中旗| 白云矿| 温宿| 广昌| 漯河| 三水| 玉门| 双柏| 河池| 金塔| 溧阳| 察哈尔右翼前旗| 麻山| 伊吾| 梁河| 东沙岛| 芦山| 疏勒| 阿克塞| 温泉| 珠穆朗玛峰| 罗平| 郸城| 昭通| 遂平| 固阳| 东港| 绩溪| 夹江| 眉县| 延津| 当雄| 丹凤| 夷陵| 郫县| 岢岚| 万山| 昆山| 泊头| 平原| 商南| 阿勒泰| 都安| 和顺| 辉南| 谢通门| 来凤| 加格达奇| 庆安| 弋阳| 邯郸| 新都| 浠水| 达县| 漳浦| 长白| 舞阳| 汉口| 长子| 澎湖| 镇沅| 江陵| 平凉| 天门| 永安| 武定| 仪征| 凯里| 六盘水| 江阴| 府谷| 循化| 太白| 炉霍| 肇庆| 浦江| 老河口| 大埔| 潮州| 临西| 屏东| 南木林| 马边| 西和| 罗定| 珠海| 潘集| 龙胜| 泸定| 小河| 阳信| 黑山| 元坝| 东莞| 湘潭县| 苏州| 元江| 兰西| 顺平| 察哈尔右翼中旗| 闵行| 曲阳| 常熟| 新密| 滦平| 海伦| 怀安| 泽普| 上犹| 朗县| 松溪| 咸丰| 鄂温克族自治旗| 高要| 新邱| 盱眙| 武功| 定州| 鄢陵| 兰西| 肇庆| 洛阳| 琼山| 翼城| 逊克| 湘潭县| 金堂| 旌德| 广州| 申扎| 阜新市| 东丽| 威宁| 宝兴| 永修| 中牟| 额敏| 惠山| 东海| 崇义| 富拉尔基| 岚县| 凌海| 彝良| 金湖| 泸县| 铜陵县| 和硕| 鄂温克族自治旗| 建瓯| 垦利| 靖远| 赤壁| 射阳| 荔浦| 大竹| 富阳| 邗江| 青阳| 清原| 景德镇| 昔阳| 临夏县| 广河| 平顶山| 横县| 梧州| 江华| 定南| 台北市| 哈巴河| 麦积| 兴义| 弓长岭| 开封市| 靖宇| 辉南| 宣城|

大渡口区“半岛逸景.乐园”2017年4月下旬...

2019-05-24 07:31 来源:新中网

  大渡口区“半岛逸景.乐园”2017年4月下旬...

  AbirdrestsonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)AbirdrestsonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)AbirdrestsonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)AbirdrestsonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)TwobirdsrestonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)Afterrecenttwistsandturnsandthewhirlwindofdiplomacyovertheweekend,WashingtonTuesdaysaidtherewere"signsofprogress"fortheexpectedmeetingbetweentheleadersoftheUnitedStatesandtheDemocraticPeoplesRepublicofKorea(DPRK)."Thepresident(DonaldTrump)thinksthattheongoingdiscussionsaregoingverywell,"Wh"certainlysignsofprogress,",theWhiteHouseannouncedthatKimYongChol,vicechairmanoftheDPRKsrulingWorkersPartyofKoreaCentralCommittee,yforthemeeting,whichwillbethethirdmeetingbetweenthetwoseniorofficials,followingtheirtalksduringPompeosvisitstotheDPRKinAprilandMay."Theyvehadobviouslyverydeepconversations,"S,,,wasmeetingwiththeDPRKofficialsattheDemilitarizedZone(DMZ),withmoremeetingsexpectedlaterthisweek,,ledbyWhiteHouseDeputyChiefofStaffJoeHagin,iscurrentlyinSingaporecoordinatingthelogisticsoftheexpectedmeetingbetweenTrumpandtheDPRKtopleaderKimJongUn."Ithinkthereisareasonablechancethesummitwilltakeplace,"BrookingsInstitutionSeniorFellowDarrellWesttoldXinhua,sayingthattheDPRK,SouthKorea,theUnitedStates,andChina"haveinvestedconsiderabletimeandeffortinmakingthesummitpossiblesoeachhasanincentivetokeeptheconversationopen."ForTrump,itsalsoanopportunityto"makeahistoricforeignpolicybreakthrough,"DanMahaffee,seniorvicepresidentanddirectorofpolicyattheCenterfortheStudyofCongressandthePresidency,,originallyscheduledforJune12inSingapore,cameafterTrumpcanceledthemeetinginalettertoKimJongUnonThursday,citing"tremendousangerandopenhostility"sletter,theDPRKsFirstViceForeignMinisterKimKyeGwansaidearlyFridaythatthecountryisreadytositdownwiththeUnitedStates,sayingbothsideswans."Hopefully,despitethestatementsofPresidentTrumpandotheradministrationofficials,dialoguecancontinuetolessentensions,butwitharealisticunderstandingofwhatarelikelyoutcomes,",Washingtonalsoremainedalertforanypossiblefuturereverse."Weremovingforward,andwellbepreparedeitherway,"Sanderstoldreporters.

PhototakenonMay28,2018showsfiveelderlypeople,73yearsoldonaverage,putonwhiteshirtsandredscarfstoposeforanawarenesseventintherunuptoChildren’sDayatanelementaryschoolinNanjing,EastChina’ypeople.(Photo:ChinaNewsService/YangBo)PhototakenonMay28,2018showsfiveelderlypeople,73yearsoldonaverage,putonwhiteshirtsandredscarfstoposeforanawarenesseventintherunuptoChildren’sDayatanelementaryschoolinNanjing,EastChina’ypeople.(Photo:ChinaNewsService/YangBo)PhototakenonMay28,2018showsfiveelderlypeople,73yearsoldonaverage,putonwhiteshirtsandredscarfstoposeforanawarenesseventintherunuptoChildren’sDayatanelementaryschoolinNanjing,EastChina’ypeople.(Photo:ChinaNewsService/YangBo)PhototakenonMay28,2018showsfiveelderlypeople,73yearsoldonaverage,putonwhiteshirtsandredscarfstoposeforanawarenesseventintherunuptoChildren’sDayatanelementaryschoolinNanjing,EastChina’ypeople.(Photo:ChinaNewsService/YangBo)PhototakenonMay28,2018showsfiveelderlypeople,73yearsoldonaverage,putonwhiteshirtsandredscarfstoposeforanawarenesseventintherunuptoChildren’sDayatanelementaryschoolinNanjing,EastChina’ypeople.(Photo:ChinaNewsService/YangBo)现在,这一现象也普遍存在于背井离乡、在大城市生活的单身青年之中。

  PresidentXiJinpingspeaksattheopeningofthe19thMeetingoftheAcademiciansoftheChineseAcademyofSciencesandthe14thMeetingoftheAcademiciansoftheChineseAcademyofEngineeringonMondayinBeijing.(Photo/Xinhua)PresidentXiJinpingcalledonMondayforconcertedendeavorsandstrategicarrangementsinkeycutting-edgetechnologiesandinfieldssubjecttoothercountries"AsChinastrivesforprosperityandrejuvenation,itneedstodevotegreatenergytopromotingscienceandtechnology,endeavoringtobeamajorworldcenterforscienceandinnovation.""Self-relianceisthefoundationfortheChinesenationtostandfirmlyintheworldwhileindependentinnovationistheonlywayforustoclimbthepeakoftheworldsscienceandtechnology.""Hardpowerorsoftpower,theybothrelyonacountrysmanpower.""Innovationdecidesthenationsfuturewhilereformconcernsthenationing.""Iamimpressedbysuchabigfocusamajorplayerinscientificdevelopmentaroundtheworld."-JerzyDuszynski,presidentofthePolishAcademyofSciences"PresidentXigaveaveryinformativespeechonscience,,suchasthedigitalBeltandRoadproject,whichcanprovidecountriestakingpartintheinitiativewithvaluablegeographicandclimatedataandserveasapowerfultoolfordevelopment."MarkkuKulmala,professorofatmosphericscienceattheUniversityofHelsinki,Finland(Photo/Xinhua)"ThepresidenthasdefinitelytargetedthekeytopicofhowtoadvancescienceandtechnologyinChinaandhowtouseittohelptheChineseeconomy,thepeople,sinterestingthatsomeonewhoispresidentofsuchalargecountrycanactuallyfindthetimetocometoameetingofengineersandscientists.(Photo/Xinhua)Thatthappenveryofteninanycountry,soitsahugepluspointforChina."IanCluckie,professorofhydrometeorologyatSwanseaUniversity,UnitedKingdom."WehadaclassdiscussionaboutFacebookandeverysingleoneofthestudentssaidt,"commentedAbbeyFauntleroy.阿贝-方特勒罗伊写道:“我们曾在课上讨论过脸书,所有学生都说他们的父母花在刷脸书上的时间比和他们交谈的时间多,这让我很吃惊。

  Theexhibitionof169displaysattheCapitalMuseuminBeijingincludessuchitemsasaQingDynasty(1644-1911)mapoftheGrandCanal,andotherculturalrelicslikedailyitems,potteryandconstructionmaterials.(PhotoprovidedtoChinaDaily)VisitinganongoingexhibitionattheCapitalMuseumislikereadingabookabouteasternBeijing-JiFuTongHui(akeyjunctionontheoutskirtsofthecapitalcity)-whichareanaptdescriptionofTongzhou,-comprising169displays-eijings"sub-center".,awell-preservedancientcitydatingtotheWesternHanDynasty(206BC-AD24)chitemsasaQingDynasty(1644-1911)mapoftheGrandCanal,andotherculturalrelicslikedailyitems,potteryandconstructionmaterials.(PhotoprovidedtoChinaDaily)YuPing,deputydirectoroftheBeijingmunicipaladministrationofculturalheritage,,dailyitems,pottery,constructionmaterialsandotherculturalrelicsfromthesiteareondisplay."The(Luxian)siteisuniquebecauseitistheonlydiscoveredcounty-levelcityruinsfromtheWesternHanDynasty,"saysGaoHongqing,curatoroftheexhibition."Itfillsavoidinourstudiesofurbanconstructionandlocalgovernmentstructurefromthatdynasty.",theLiaoDynasty(916-1125)madeBeijingoneofits"fivemetropolises",andin1153,theJurchenruleroftheJinDynasty(1115-1234)moveditscapitalcitytoBeijing,makingitthepoliticalcenterofnorthernChina."Duetoitspivotalposition,thestatusofTongzhoukeptgrowing,"chitemsasaQingDynasty(1644-1911)mapoftheGrandCanal,andotherculturalrelicslikedailyitems,potteryandconstructionmaterials.(PhotoprovidedtoChinaDaily)ManyartifactsfromtheCapitalMuseumsowncollection,whichwerealsounearthedinTongzhou,(picturedtop)smovetomakeBeijingthecapitaloftheYuanDynasty(1271-1368)alsogaveaboosttoTongzhousfortunes,especiallyaftertheconstructionoftheGrandCanal,whichlinksBeijingandHangzhou,capitalofZhejiangprovince."Thecityexpandedandthepopulationalsogrewrapidly,"saysGao.",whichwastransportedviathecanalfromsouthernChina."Accordingtohistoricalrecords,thchitemsasaQingDynasty(1644-1911)mapoftheGrandCanal,andotherculturalrelicslikedailyitems,potteryandconstructionmaterials.(PhotoprovidedtoChinaDaily)In1329,(acontainerthatcouldholdabout75kilograms),(1368-1644)andQing(1644-1911)ighriceatTongzhou,headofthemuseum,talksaboutaQingmapoftheGrandCanal,fromBeijingtoShandongprovince,fromthereignofYongzheng(1722-35).AccordingtoZheng,themapwastakentoJapanduringtheWarofResistanceAgainstJapaneseAggression(1931-45)butwasbroughtbacktoChinaaround2000."Youcanstillfindmanyfacilitiesthatexisttodayonthemap,"PresidentXiJinpingspeaksattheopeningofthe19thMeetingoftheAcademiciansoftheChineseAcademyofSciencesandthe14thMeetingoftheAcademiciansoftheChineseAcademyofEngineeringonMondayinBeijing.(Photo/Xinhua)PresidentXiJinpingcalledonMondayforconcertedendeavorsandstrategicarrangementsinkeycutting-edgetechnologiesandinfieldssubjecttoothercountries"AsChinastrivesforprosperityandrejuvenation,itneedstodevotegreatenergytopromotingscienceandtechnology,endeavoringtobeamajorworldcenterforscienceandinnovation.""Self-relianceisthefoundationfortheChinesenationtostandfirmlyintheworldwhileindependentinnovationistheonlywayforustoclimbthepeakoftheworldsscienceandtechnology.""Hardpowerorsoftpower,theybothrelyonacountrysmanpower.""Innovationdecidesthenationsfuturewhilereformconcernsthenationing.""Iamimpressedbysuchabigfocusamajorplayerinscientificdevelopmentaroundtheworld."-JerzyDuszynski,presidentofthePolishAcademyofSciences"PresidentXigaveaveryinformativespeechonscience,,suchasthedigitalBeltandRoadproject,whichcanprovidecountriestakingpartintheinitiativewithvaluablegeographicandclimatedataandserveasapowerfultoolfordevelopment."MarkkuKulmala,professorofatmosphericscienceattheUniversityofHelsinki,Finland(Photo/Xinhua)"ThepresidenthasdefinitelytargetedthekeytopicofhowtoadvancescienceandtechnologyinChinaandhowtouseittohelptheChineseeconomy,thepeople,sinterestingthatsomeonewhoispresidentofsuchalargecountrycanactuallyfindthetimetocometoameetingofengineersandscientists.(Photo/Xinhua)Thatthappenveryofteninanycountry,soitsahugepluspointforChina."IanCluckie,professorofhydrometeorologyatSwanseaUniversity,UnitedKingdom.

ResidentsaffectedbyanearthquakestayinatemporaryshelterinSongyuanCity,NortheastChina’sJilinProvince,May28,,SongyuanCityonMondaymorning,damagingthehousesofmorethan1,thequake.(Photo:ChinaNewsService/ZhangYao)ResidentsaffectedbyanearthquakemovetheirbelongingsinSongyuanCity,NortheastChina’sJilinProvince,May28,,SongyuanCityonMondaymorning,damagingthehousesofmorethan1,thequake.(Photo:ChinaNewsService/ZhangYao)

  StudentsfromYunnanUniversityDi(PhotobyZhuYuhangandXuYuya/)StudentsfromYunnanUniversityDi(PhotobyZhuYuhangandXuYuya/)StudentsfromYunnanUniversityDi(PhotobyZhuYuhangandXuYuya/)StudentsfromYunnanUniversityDi(PhotobyZhuYuhangandXuYuya/)StudentsfromYunnanUniversityDi(PhotobyZhuYuhangandXuYuya/)StudentsfromYunnanUniversityDi(PhotobyZhuYuhangandXuYuya/)StudentsfromYunnanUniversityDi(PhotobyZhuYuhangandXuYuya/)StudentsfromYunnanUniversityDi(PhotobyZhuYuhangandXuYuya/)

  Europeslargestwoodenbuildingandsecondlargestintheworld,locatedonIstanbulsBüyükadaisland,isnowamongthesevenmostendange,thePrinkipoG,theagingPrinkipoGreekOrthodoxorphanageisindangerofcollapse.(Photo/Agencies)Europeslargestwoodenbuildingandsecondlargestintheworld,locatedonIstanbulsBüyükadaisland,isnowamongthesevenmostendange,thePrinkipoG,theagingPrinkipoGreekOrthodoxorphanageisindangerofcollapse.(Photo/Agencies)Europeslargestwoodenbuildingandsecondlargestintheworld,locatedonIstanbulsBüyükadaisland,isnowamongthesevenmostendange,thePrinkipoG,theagingPrinkipoGreekOrthodoxorphanageisindangerofcollapse.(Photo/Agencies)Europeslargestwoodenbuildingandsecondlargestintheworld,locatedonIstanbulsBüyükadaisland,isnowamongthesevenmostendange,thePrinkipoG,theagingPrinkipoGreekOrthodoxorphanageisindangerofcollapse.(Photo/Agencies)AresearcheratauniversityinChongqingpublishedthefirstillustratedhandbookonChina,ChineseSpidersIllustrated,istheworkZhangDongsheng,aresearchfellowatSouthwestUniversitywhoforth,Zhangbegstodiffer-despiteafewbitesovertheyears."Theyareextremelybeautiful,"explainedZhang.",thebookcoversChinas1,139knownspecies-makingittheworld,includingmorethan2,steamspentayearobservingandresearchingtheChinesehourglassspider,oneoftheworldsoldestarachnids."Youhavetobepatientwhendoingresearch,"saidZhang.  

  ”Ifyouwanttoincreasethenumberofnewneuronsinourbrain’slearningregion,,powerwalking,andswimminghavebeenfoundtoincreasethenumberofneuronsmakingimportantconnectionsinourbrains.如果你想增加大脑学习区域的新神经元数量,可以尝试锻炼。

  PoliceofficersfromChinaandItalyattendaceremonyheldtosymbolicallymarkthestartofthethirdyearoflawenforcementcooperationbetweenthetwocountriesinRome,Italy,onMay28,ofphoto-snappingpassersby--wereinRomespicturesquePiazzaNavonaMondayfortheornateceremony.(Xinhua/AlbertoLingria)PhototakenonMay28,2018showsaceremonyheldtosymbolicallymarkthestartofthethirdyearoflawenforcementcooperationbetweenChinaandItalyinRome,ofphoto-snappingpassersby--wereinRomespicturesquePiazzaNavonaMondayfortheornateceremony.(Xinhua/AlbertoLingria)PhototakenonMay28,2018showsaceremonyheldtosymbolicallymarkthestartofthethirdyearoflawenforcementcooperationbetweenChinaandItalyinRome,ofphoto-snappingpassersby--wereinRomespicturesquePiazzaNavonaMondayfortheornateceremony.(Xinhua/AlbertoLingria)ChinesepoliceofficersattendaceremonyheldtosymbolicallymarkthestartofthethirdyearoflawenforcementcooperationbetweenChinaandItalyinRome,Italy,onMay28,ofphoto-snappingpassersby--wereinRomespicturesquePiazzaNavonaMondayfortheornateceremony.(Xinhua/AlbertoLingria)PoliceofficersfromChinaandItalyattendaceremonyheldtosymbolicallymarkthestartofthethirdyearoflawenforcementcooperationbetweenthetwocountriesinRome,Italy,onMay28,ofphoto-snappingpassersby--wereinRomespicturesquePiazzaNavonaMondayfortheornateceremony.(Xinhua/AlbertoLingria),writes,designs,,hehasfallenintoanewhabitofartcreation:tuniquetoYixing,,novel,ShuiHuZhuan(OutlawsoftheMarsh),andhadtheseteapotsfiredinYixing.(PhotoprovidedtoChinaDaily)Askedwhyhestartedtheproject,Huangsimplysaid,"(Itsbecause)Ihadnothingtokilltime!"Hisfirstzishateapot,hewroteinthemorningandspenttheafternooncarvingonearthenwares,nce,courageandintegrityofthem.(PhotoprovidedtoChinaDaily)I"aburdenofhappiness".HesharedthemwiththeaudienceatanexhibitionthatendsattheNationalArtMuseumofChinaonTuesday.(PhotoprovidedtoChinaDaily)Theseteapotsshowhissenseofhumorandconveyhisviewsontherightandwrong."Anoldmanhadnothingtodo,sohefoundsomethinghecoulddo;inafashionableway,youcansayitsanoldguysperformanceart,",writes,designs,,hehasfallenintoanewhabitofartcreation:carvingfiguresonearthenzishateapots.(PhotoprovidedtoChinaDaily),writes,designs,,hehasfallenintoanewhabitofartcreation:carvingfiguresonearthenzishateapots.(PhotoprovidedtoChinaDaily),writes,designs,,hehasfallenintoanewhabitofartcreation:carvingfiguresonearthenzishateapots.(PhotoprovidedtoChinaDaily)

  AbirdrestsonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)AbirdrestsonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)AbirdrestsonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)AbirdrestsonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)TwobirdsrestonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)

  Theexhibitionof169displaysattheCapitalMuseuminBeijingincludessuchitemsasaQingDynasty(1644-1911)mapoftheGrandCanal,andotherculturalrelicslikedailyitems,potteryandconstructionmaterials.(PhotoprovidedtoChinaDaily)VisitinganongoingexhibitionattheCapitalMuseumislikereadingabookabouteasternBeijing-JiFuTongHui(akeyjunctionontheoutskirtsofthecapitalcity)-whichareanaptdescriptionofTongzhou,-comprising169displays-eijings"sub-center".,awell-preservedancientcitydatingtotheWesternHanDynasty(206BC-AD24)chitemsasaQingDynasty(1644-1911)mapoftheGrandCanal,andotherculturalrelicslikedailyitems,potteryandconstructionmaterials.(PhotoprovidedtoChinaDaily)YuPing,deputydirectoroftheBeijingmunicipaladministrationofculturalheritage,,dailyitems,pottery,constructionmaterialsandotherculturalrelicsfromthesiteareondisplay."The(Luxian)siteisuniquebecauseitistheonlydiscoveredcounty-levelcityruinsfromtheWesternHanDynasty,"saysGaoHongqing,curatoroftheexhibition."Itfillsavoidinourstudiesofurbanconstructionandlocalgovernmentstructurefromthatdynasty.",theLiaoDynasty(916-1125)madeBeijingoneofits"fivemetropolises",andin1153,theJurchenruleroftheJinDynasty(1115-1234)moveditscapitalcitytoBeijing,makingitthepoliticalcenterofnorthernChina."Duetoitspivotalposition,thestatusofTongzhoukeptgrowing,"chitemsasaQingDynasty(1644-1911)mapoftheGrandCanal,andotherculturalrelicslikedailyitems,potteryandconstructionmaterials.(PhotoprovidedtoChinaDaily)ManyartifactsfromtheCapitalMuseumsowncollection,whichwerealsounearthedinTongzhou,(picturedtop)smovetomakeBeijingthecapitaloftheYuanDynasty(1271-1368)alsogaveaboosttoTongzhousfortunes,especiallyaftertheconstructionoftheGrandCanal,whichlinksBeijingandHangzhou,capitalofZhejiangprovince."Thecityexpandedandthepopulationalsogrewrapidly,"saysGao.",whichwastransportedviathecanalfromsouthernChina."Accordingtohistoricalrecords,thchitemsasaQingDynasty(1644-1911)mapoftheGrandCanal,andotherculturalrelicslikedailyitems,potteryandconstructionmaterials.(PhotoprovidedtoChinaDaily)In1329,(acontainerthatcouldholdabout75kilograms),(1368-1644)andQing(1644-1911)ighriceatTongzhou,headofthemuseum,talksaboutaQingmapoftheGrandCanal,fromBeijingtoShandongprovince,fromthereignofYongzheng(1722-35).AccordingtoZheng,themapwastakentoJapanduringtheWarofResistanceAgainstJapaneseAggression(1931-45)butwasbroughtbacktoChinaaround2000."Youcanstillfindmanyfacilitiesthatexisttodayonthemap,"

  ”Ifyou’reananalystwhomeetswithaclientweekly,yourbrainw,yourbrainwillweighthatinformationaccordingly.如果你是个分析师,与一名客户每周见一次,你的大脑会判断出这个客户的姓名和经历必须记住。AbirdrestsonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)AbirdrestsonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)AbirdrestsonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)AbirdrestsonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)TwobirdsrestonthestemofalotusflowerintheHuangshanscenicareainAnhuiprovinceonJune10,,astemperaturescontinuetorise.(Photo/Asianewsphoto)

  

  大渡口区“半岛逸景.乐园”2017年4月下旬...

 
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新闻频道 > 宜昌

交通违章权威查询
汛前虚库以待汛期科学调度 三峡是这样防洪的
发布时间:2019-05-24 09:44:09来源:J--人民日报进入电子报

图为5月4日,船舶停靠在三峡大坝上游引航道准备过闸。郑家裕摄

核心阅读

●三峡水库汛期防洪库容共有221.5亿立方米,目前已释放了约六成防洪库容。

●汛前虚库以待,汛期通过拦洪、削峰、错峰等措施来实现防洪作用。

●自2011年开始,在四大家鱼产卵期,三峡水库通过实施生态调度,刺激鱼类产卵。今年起,三峡、溪洛渡、向家坝等水利工程将联合进行生态调度。

受近期长江上游持续降雨影响,为加强防洪,三峡枢纽逐步加大下泄。根据中国长江三峡集团公司发布的水情信息,5月3日三峡水库坝上水位已消落至160米以内,释放了约六成防洪库容。截至4日20时,出库流量为每秒13900立方米。

作为世界上最大的水利水电枢纽,三峡工程是如何做到防洪科学调度的?记者专访了长江委防汛抗旱办公室副主任陈桂亚。

汛前逐渐释放并腾出库容,确保洪水到来前虚库以待

陈桂亚介绍,三峡工程设计坝顶高程185米,设计正常运行水位175米,相应库容393亿立方米;设计防洪限制水位145米,相应库容171.5亿立方米。这意味着三峡水库汛期的防洪库容共有221.5亿立方米。

三峡是如何实现防洪作用的?在汛期,首先可以通过拦洪实现,利用221.5亿立方米防洪库容,拦蓄超过下游安全泄量的洪水,确保行洪安全;其次可以削峰,当长江下游防汛形势紧张时,三峡水库进行蓄洪,将上游来的较大洪峰削减,减少出库流量并均匀下泄;再次是错峰,在下游洪水较大时,科学调度库容,防止上游洪峰与下游洪峰遭遇,减少下游防洪压力。

根据国家防总批复的调度方案,为确保防洪安全,三峡水库在每年汛末蓄水,在次年元月份至汛前逐渐释放并腾出库容,在6月10日消落至145米左右的防洪限制水位,确保洪水到来前“虚库以待”。整个汛期,三峡水库都处于随时拦蓄洪水的状态,在下游防汛形势好转时,会抓住时机加大出库流量,降低水库水位,等待下一个洪峰的到来。

陈桂亚告诉记者,“由于去年预测到当年将有大洪水,我们提前做了水位消落准备。而今年预测长江流域中游南部及下游降水偏多概率较高,主汛期流域内旱涝并存,区域性暴雨洪水和干旱可能重于常年,发生全流域大洪水的可能性不大。因此,尽管是按照正常的调度规程在进行,但还是要做好防范大洪水的准备。”

水位调度必须统筹兼顾干支流、上下游和左右岸

据悉,按照目前的调度规程,三峡水库库容调度的时间节点为,每年的5月25日将水库水位消落到155米,每年6月10日消落到145米。

“这个时间节点是根据长江流域来洪情况科学计算的,考虑了多方因素。”陈桂亚告诉记者,一是要最大限度地发挥防洪、发电、补水、航运等方面的综合效益,若是提前消落则不利于发电、航运等功能的发挥;二是一般情况下,在6月10日之前长江上游发生洪水的可能性不大,在这之后,上游洪水和中下游洪水遭遇的概率大,需要腾出库容进行防洪。

同时,作为长江中下游防洪的关键工程,三峡水库的水位调度权限分级管理很明确,要科学有序进行。调度原则是,必须统筹兼顾干支流、上下游和左右岸。按照调度规程,当汛期三峡水库上游来水不超过25000立方米每秒,可以保证荆江河段的水位和流量安全时,原则上由三峡公司提交发电计划,按照其需要的水流量进行调度;如果调度期间长江中下游发生大洪水,需要三峡水库做出调度调整,就需要由国家防总授权长江防总来负责;当荆江河段流量超过每秒56700立方米,长江防总提出调度方案上报国家防总,由国家防总下达调度命令。

针对有人担心三峡水库腾库容会影响长江中下游河道和湖泊防洪,陈桂亚坦言,“确实会产生一些影响,但是在安全范围之内。”他说,5月、6月是洞庭湖流域的主汛期,三峡水库的水位消落会加大长江下游的防洪压力,“这时候如果洞庭湖来水较多,造成城陵矶水位过高,我们将对三峡水库进行防洪调度,暂停消落,减小下泄流量。这样就打破了三峡水库的消落进程,并等长江下游险情过后继续消落,为了减小对库区环境和库岸的影响,我们控制在每天消落不超过0.6米”。

汛期如果上游来水异常少,虚库以待的三峡水库怎么办?

如果出现极端天气,汛期上游来水异常少,虚库以待的三峡水库将采取什么措施应对?

陈桂亚解释道,如果汛期洪水特别少,说明长江流域防洪压力不重,却会影响到发电和航运。但是,对于三峡工程来说,防洪是首要任务,汛期之前仍必须腾出库容。

而一旦出现上游来水异常少,仍可通过对中小洪水实施调度来减少影响。在确保防洪安全的前提下,即沙市水位不高于41米,城陵矶水位不高于31米,实现三峡水库水位上浮到146.5米,将汛期下水都经发电机组过流,避免水资源的浪费,以力保发电、航运等综合效益。“每年汛期,上游来水再少,都会有几次不编号的洪峰。这种情况下,按照调度规程,三峡水库会实施对中小洪水的调度。这要视上游来水量和上游水库库容的情况而定,不仅充分利用洪水资源,还可以减轻中下游的防洪压力。”陈桂亚说。

此外,自2011年开始,三峡水库还通过实施生态调度,在四大家鱼产卵期,持续增加放水量,人为造成江水持续上涨过程,刺激四大家鱼产卵。

为此,三峡水库在5月中下旬开始每天增加下泄的流量,从每秒1万立方米开始,涨到每秒2万立方米,持续一周。“这几年,生态调度的效果很好。从今年开始,三峡、溪洛渡、向家坝等水利工程将联合进行生态调度。”陈桂亚说。

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