共查询到20条相似文献,搜索用时 15 毫秒
1.
Zhu Liping Institute of Geography CAS Beijing People''s Republic of ChinaW.B. Whalley Department of Geography The Queen''s University of Belfast BT NN UKWang Jiacheng Lanzhou Institute of Glaciology Geocryology CAS Lanzhou Pe 《地理学报(英文版)》1997,(4)
I.IntroductionWeatheringbehaviourofrockmustbeviewedasbeingtheresultofinteractionbetweentheintrinsicpropertiesandexternalclimaticconditions[45].Mostreferencestofrostshatteringhaveemphasisedthedisruptiveforcesassociatedwiththephasechangesofwatertoice[1,26,34,3… 相似文献
2.
Wu Shengguang Yang Dayuan Department of Geography Nanjing University Nanjing People''s Republic of ChinaWang Yunfei Nanjing Institute of Geography Limnology Academia Sini Nanjing People''s Republic of China 《地理学报(英文版)》1997,(2)
I.TheTerracesoftheUpperYellowRiverTheterracesoftheupperYellowRiveraremostlydispersedalongthewidercoursesinseveralMesozoicCenozoicbasins(Figure1).1.TerracesbetweenNgoringLakeandGyaringLakeThesurfacelayersofthesedimentinthewideandshallowbasinswheretheYell… 相似文献
3.
Cai Yunlong Department of Geography Peking University Beijing People''s Republic of China 《地理学报(英文版)》1997,(2)
I.IntroductionTheacademic,scientificandpolicy-makingcommunitieshavefocusedconsiderableattentionontheconceptofsustainabledevelopment.FAO(1988)definessustainabledevelopmentas”themanagementandconservationofthenaturalresourcebase,andtheorientationoftechnologi… 相似文献
4.
《地理学报(英文版)》1997,(1)
TheYarlungZangboRiverCanyon,whichencompassesMountNamjagbarwa,isoneofthefewmysticalforbbidenareasremainingonearthandishometomanyprofoundgeologicalandbiologicalmysteriesawaitingexploration.Inrecentyears,scientistsfromtheInstituteofGeographyandInstituteof… 相似文献
5.
Marie~Josee DOS SANTOS Department of Geography University of Paris IV Sorbonne France 《地理学报(英文版)》1997,(1)
IntroductionBeijingisacityapartfromothers.Clearness,itsstatusastheChinesecapitalhasprovideditwiththisstandingfornearlyeightcenturiesinbothChinaandtheworld.However,explainingallthereasonsforthisremainsinherentlydifficult.Theobjectiveherethen,istounderlin… 相似文献
6.
Ding Dengshan Bao Haosheng Department of Urban Resources Sciences Nanjing University Nanjing People''s Republic of China 《地理学报(英文版)》1997,(4)
Atpresent,theMiddleEastisaregionoverwhichmanykindsofcontradictionsexist.Itisobviousthattherootcauseliesinitsimportanceinthestrategicgeographicalpositionandrichresourcesofoilandnaturalgas.Ithasalwaysbeenahotspotintheworld,andconflictshaveoccurredthereco… 相似文献
7.
Zhong Zhaozhan Zhao Jubao Institute of Agrometeorology Chinese Academy of Agricultural Sciences Beijing People''s Republic of China 《地理学报(英文版)》1997,(4)
I.IntroductionDrylandcoverslargeareasinnorthernChinawithaboutonethirdofthecountry’stotalfarmlands,amongwhichrainfedfarmlandwithoutirrigationcovers2.3(107hm2.TherearethreekindsofdryfarmingareasinnorthernChina[9],i.e.subhumidandslightdryarea(aridity1.31.6,annualpr… 相似文献
8.
Liu Yanhua Zhao Mingcha Sun Huinan Institute of Geography CAS Beijing People''s Republic of China 《地理学报(英文版)》1997,(4)
I.ThePositiveRoleofBrown’sArticleAsaforeignscholar,Mr.L.Brownhasknownaseriesofdataandmaterialsonpopulation,foodproductivityandrelevantfactorsofChina,hadmaderatherdeepanalysisandgivenaforecastoffoodsecurityofChina.Hehasshownthepossibleserioussequenceinfo… 相似文献
9.
IntroductionLanduserelatestohumanactivitiesinvolvingtheutilizationandmanipulationoflandandlandrelatedresourcestomeetthelivingdemandsofhumanbeingsforfood,fuel,shelter,etc.Landuse/landcoverchangesaretheimportantpartsofglobalwarming,aswellasthegapofintegra… 相似文献
10.
Tang Dengyin Zhang Shifeng Institute of Geography CAS Beijing People''s Republic of China 《地理学报(英文版)》1997,(2)
I.Background1.NaturalconditionsTheirrigatedareaofnorthwestShandongProvincebychannelingYellowRiverisaveryimportantirrigatedregioninthelowerreachesofYellowRiver,including27countiesandcitieswithanareaof29,700km2,or19.3percentofthetotalofShandongProvince.Amongwhi… 相似文献
11.
Tian Hong 《云南地理环境研究》1999,(Z1)
1 BackgroundXishuangbannaDaiPeopleAutonomousPrefectureislocatedinthesouthernpartofYunnanProvince,China.Thetotallandareais19223km2withpopulationof817772ofwhichareDai,Hani,Bulan,Lahu,Jinuo,Yao,Wa,andHanpeoplein.Theforestcoverageis63%.Thereareabout40000… 相似文献
12.
《地理学报(英文版)》1997,(4)
ProfessorHuangBingweiwasbornin1913inthecityofHuizhou,GuangdongProvince.Geographyishischosendiscipline.AftergraduationfromtheSunYatsenUniversityinthesummerof1934,hewasgrantedaRockefellerFoundationfellowshipandjoinedtheGeologicalSurveyofChinatocarryoutstudie… 相似文献
13.
THE CASE STUDY ON THE EFFECT OF CO_2 IN CAVE ATMOSPHERE ON STABILITY OF SPELEOTHEM SCENERY IN YAOLIN CAVE, ZHEJIANG PROVINCE, CHINA 总被引:1,自引:0,他引:1
Song Linhua Yang Jingrong Lin Junshu Group of Karstology Speleology Institute of Geography CAS Beijing People’s Republic of ChinaWang Laihong Administration of Yaolin Cave Tonglu County Zhejiang Province People’s Republic 《地理学报(英文版)》1997,(3)
ThevisitorsgivethecaveenvironmentagreatdealofCO2.AverageCO2contentofthevisitorsis13,00015,000ppminthebreedingandonevisitorbreeds40litreofCO2perhour.ThevisitorsstronglyinferencetheCO2contentinthecaveatmosphere.Inspring,CO2contentwas500-600ppminNo.1andNo.2chambersat8:008:… 相似文献
14.
Ci Longjun Commission for Integrated Survey of Natural Resources CAS Beijing People''s Republic of China 《地理学报(英文版)》1997,(3)
InChina,desertsmovingnorthwardduetotheupliftingoftheQinghai-TibetPlateauaredistributedinarid,semi-aridanddrysub-humidareasof35°-50°Nand75°-125°E.Deserts,GobianddesertificationaffectedareashorizontallycrossedNorthwest,NorthandNortheastChinainalengthof4,500km.Thev… 相似文献
15.
Leng Shuying Zheng Du Institute of Geography CAS Beijing People''s Republic of China 《地理学报(英文版)》1997,(4)
I.LandDegradationDistributionandItsCharacteristicsThefarmingpastoraltransitionalregioninsemiaridlandofnorthernChinaisthemosttypicalregionoflanddegradation,andalsotheregionwithextensivelydevelopingsandydesertification.TheextentisfromHorqinSandyLandinth… 相似文献
16.
《地理学报(英文版)》1997,(1)
I.ProgressofUrbanizationinChinaExperiencedFourStages1.19491957activeurbanizationperiodWhenthePeople’sRepublicofChinawasfoundedin1949,therewereonly132citieswithatotalurbanpopulationof39,490,000throughtoutthecountry.Thelevelofurbanization(referringtoratiosofthetotalp… 相似文献
17.
Withanareaof1.2millionkm2,andanaltitudeof4000m,theTibetanAutonomousRegionconstitutesthemainpartoftheQinghaiTibetanPlateau,oneofthethreenaturalrealmsinChina.Itconsistsofaseriesofhighmountainsandhighlandswithmanywidevalleysandbasinssandwitchinginbetween.TheH… 相似文献
18.
Lu Xing 《云南地理环境研究》1999,(Z1)
ThedeteriorationofecologicalenvironmentwhichhappenedinthemidstreamofNantingRiverhasseriouslyaffectedthepeople'slivingandworkingthere,sorestoring,protectingtheecologicalenvironmentandenvironmentsounddevelopmentandequitablyuseofthelocalresourcesofNanti… 相似文献
19.
ThesupportingcapabilityofwaterandlandresourcesforsustainableincreaseofyieldinNorthChinaPlainZHANGHongyeInstituteofGeography,... 相似文献
20.
ThemostprominentsignoflandscapeinirrigationoasesandnaturaloasesonriverbanksandalluvialfansindesertzoneofwesternChinaisthelushcultivatedornaturalwoodsinvividlygreencolor,whichisinremarkablecontrastwithyelloworgraycolorinotherdesertzones.Besidesshowingt… 相似文献