简介:在构建人口文化素质指数的基础上,根据中国文化教育的实际情况,选取合理而简单的评价指标,对1997—2006年中国人口文化素质指数进行定量与定性分析.研究表明:中国人口文化素质指数正在快速提高,但整体水平还很低;人口文化素质指数的空间差异明显,东部最高,中部次之,西部最低,低于全国平均水平的省域集中于西部;近2/3的省域存在发散趋异,收敛趋同的省域不到1/3;向上发散趋异的省域主要位于东、中部,向下发散趋异的省域主要位于西部,空间差异有可能继续扩大.反映单个人文因子与人口文化素质指数之间互动关系的方程显示:人口文化素质指数与人文因子间存在显著的线性关系和对数关系.最后运用逐步回归法得到了综合人文驱动因子与人口文化素质指数之间的复合线性关系模型.
简介:第十三届全国人民代表大会常务委员会第七次会议决定对《中华人民共和国农村土地承包法》作如下修改:一、将第一条修改为:“为了巩固和完善以家庭承包经营为基础、统分结合的双层经营体制,保持农村土地承包关系稳定并长久不变,维护农村土地承包经营当事人的合法权益,促进农业、农村经济发展和农村社会和谐稳定,根据宪法,制定本法。”
简介:《中华人民共和国耕地占用税法》已由中华人民共和国第十三届全国人民代表大会常务委员会第七次会议于2018年12月29日通过,现予公布,自2019年9月1日起施行。
简介:[1]AnZS,WeiLY,LuYC,1985,ApreliminarystudyofsoilstratigraphyinLuochuanloessprofile.QuaternarySciences,6(1):166-173.(inChinese)[2]AnZS,KutzbacchJE,PrellWLetal.,2001.EvolutionofAsianmonsoonsandphasedupliftoftheHimalaya-TibetanplateausinceLateMiocenetimes.Nature,411:62-66.[3]BarbaraAM,1995.PalaeorainfallreconstructionsfrompedogenicmagneticsusceptibilityvariationintheChineseloessandpalaeosol.QuaternaryResearch,44(3):383-391.[4]DerbyshireE,MengXM,KempRA,1998.Provenance,transportandcharacteristicsofmodemaeoliandustinwesternGansuProvince,China,andinterpretationoftheQuaternaryloessrecord.JournalofAridEnvironments,39:497-516.[5]DingZL,LiuDS,LiuXMetal.,1989.37cyclessince2.5Ma.ChineseScienceBulletin,34(19):1494-1496.[6]DingZL,RutterNW,SunJMetal.,2000.Re-arrangementofatmosphericcirculationatabout2.6MaovernorthernChina:evidencefromgrainsizerecordsofloess-palaeosolandredclaysequences.QuaternaryScienceReviews,19:547-558.[7]DuJ,ZhaoJB,2004.SoilerosionregularitysinceHoloceneinShaolingtablelandofChang′an.JournalofDesertResearch,24(1):63-67.(inChinese)[8]FengZD,WangHB,OlsonCetal.,2004.Chronolgicaldiscordbetweenthelastinterglacialpaleosol(S1)anditsparentmaterialintheChineseLoessPlateau.QuaternaryInternational,117:17-26.[9]GuoZT,LiuDS,FedoroffNetal.,1998.ClimateextremesinloessofChinacoupledwiththestrengthofdeep-waterformationintheNorthAtlantic.GlobalandPlanetaryChange,18:113-128.[10]GuoZT,WillamFRuddiman,HaoQZetal.,2002.OnsetofAsiandesertificationby22MyragoinferredfromloessdepositsinChina.Nature,416:159-163.[11]HeinrichH,1988.OriginandconsequenceofcycliciceraftinginthenortheastAtlanticOceanduringpast130000years.QuaternaryResearch,29:142-152.[12]KempRA,DerbyshireE,
简介:Glacierinventorycompilationduringthepast20yearsandmodificationsofthatfortheEasternPamirandBanggongLakeindicatethatthereare46,342modernglacierswithatotalareaandvolumeof59415km2and5601km3respectivelyinChina.Theseglacierscanbeclassifiedintomaritimeandcontinental(includingsub-continentalandextremelycontinental)types.ResearchesshowthatglaciersinChinahavebeenretreatingsincetheLittleIceAgeandthemasswastagewasacceleratedduringthepast30to40years.BeinganimportantpartofglaciologicalstudiesinChina,icecoreclimaticandenvironmentalstudiesonTibetanPlateauandintheAntarcticahaveprovidedabundant,highresolutioninformationaboutpastclimaticandenvironmentalevolutionovertheTibetanPlateauandAntarctica.ExceptfordifferentparametersrecordedinicecoresrelatingtoclimateandenvironmentchangesonTibetanPlateau,recordsfromicecoresextractedfromdifferentglaciersshowthatthediscrepanciesinclimaticandenvironmentalchangesonthenorthandsouthpartsoftheplateaumaybetheconsequenceofdifferentinfluencingeffectsfromterrestrialandsolarsources.GlaciologicalandmeteorologicalphenomenaimplythatLambertGlaciervalleyisanimportantboundaryofclimateintheeastAntarctica,whichisthoughttobeconnectedwithcyclonicactivitiesandCircum-polarWavesovertheAntarctica.
简介:PermafrostinChinaincludeshighlatitudepermafrostinnortheasternChina,alpinepermafrostinnorthwesternChinaandhighplateaupermafrostontheTibetanPlateau.Thehighaltitudepermafrostisabout92%ofthetotalpermafrostareainChina.Thesouthboundaryorlowerlimitoftheseasonallyfrozengroundisdefinedinaccordancewiththe0℃isothermallineofmeanairtemperatureinJanuary,whichisroughlycorrespondingtothelineextendingfromtheQinlingMountainstotheHuaiheRiverintheeastandtothesoutheastboundaryoftheTibetanPlateauinthewest.SeasonalfrozengroundoccursinlargepartsoftheterritoryinnorthernChina,includingNortheast,North,NorthwestChinaandtheTibetanPlateauexceptforpermafrostregions,andaccountingforabout55%ofthelandareaofChina.Thesouthernlimitofshort-termfrozengroundgenerallyswingssouthandnorthalongthe25°northernlatitudeline,occurringinthewetandwarmsubtropicmonsoonclimaticzone.Itsareaislessthan20%ofthelandareaofChina.
简介:为推动新时代自然资源管理事业高质量发展,大力提升干部队伍综合能力,推进“两学一做”学习教育常态化、制度化,山东省滨州市国土资源局从今年3月起,在全系统开展“大学习、大调研、大改进”专项活动,不分阶段、不设环节,同时展开、同步推进,准确把握自然资源管理“源头严防、过程严管、后果严惩”的新要求,通过抓学习提境界、抓调研增本领、抓改进促落实,使全系统干部队伍的思想观念得到更新、素质得到提升、活力得到进发,坚持一手抓标本兼治,一手抓规范提升,坚持既要“一次办好”,更要“全面做优”,把党中央的重大决策部署变成滨州国土人的生动实践,为推动滨州高质量发展提供了有力资源保障。
简介:[1]BrownL,1995.WhoWillFeedChina:Wake-upCallforaSmallPlanet.TheWorldWatchEnvironmentalAlertSeries.NortonandCo.,NewYork,USA.[2]CaiYunlong,1990.Land.In:ZuoDakang(eds.),ADictionaryofModernGeography.Beijing:TheCommercialPress,ppl11.(inChinese)[3]CaoM,MaS,HanC,1995.Potentialproductivityandhumancarryingcapacityofanagro-ecosystem:ananalysisoffoodproductionpotentialofChina.AgriculturalSystems,47:387-414.[4]ChenLiding,WangJun,FuBojieetal.,2001.Land-usechangeinasmallcatchmentofnorthernLoessPlateau,China.Agriculture,Ecosystems&Environment,86(2):163-172.[5]DaiFC,LeeCF,ZhangXH,2003.GIS-basedgeo-environmentalevaluationforurbanland-useplanning:acasestudy.EngineeringGeology,61(4):257-271.[6]DingChengri,2003.LandpolicyreforminChina:assessmentandprospects.LandUsePolicy,20:109-120.[7]FuBojie,WangJun,ChenLidingetal.,2003a.TheeffectsoflanduseonsoilmoisturevariationintheDanangoucatchmentoftheLoessPlateau,China.Catena,54:197-213.[8]FuCongbin,2003b.Potentialimpactsofhuman-inducedlandcoverchangeonEastAsiamonsoon.GlobalandPlanetaryChange,37(3-4):219-229.[9]FischerG,SunLaixiang,2001.Modelbasedanalysisoffutureland-usedevelopmentinChina.Agriculture,Ecosystems&Environment,85(1-3):163-176.[10]GuoXiaomin,NiuDekuietal.,2000.TheexplorationofdevelopingfruitindustrymodewithsoilandwaterconservationinsouthJiangxiarea.ResearchofSoilandWaterConservation,7(3):187-218.(inChinese)[11]HeXiubin,LiZhanbin,HaoMingdeetal.,2003.Down-scaleanalysisforwaterscarcityinresponsetosoil-waterconservationonLoessPlateauofChina.Agriculture,EcosystemsandEnvironment,94:355-361.[12]HeiligGK,1999.CanChinafeeditself?Asystemforevaluationofpolicyoptions.ScienceforGlobalInsight,IIASA,Laxenburg(CD-ROMVers.1.1).[13]HuWei,1997.HouseholdlandtenurereforminChina:itsim