TEMPERATURE,RAINFALL VARIATIONS AND THEIR ANOMALIES OVER CHINA UNDER THE COLD-WARM BACKGROUND IN THE 20TH CENTURY          下载免费PDF全文

施能  屠其璞  陈家其 《Acta Meteorologica Sinica》1995,(4)

In this study,the climate trend of the annual average air temperature and total annual rainfall inChina in the present century has been examined.It is noted that in the Northwest,the Northeast andNorth China the climate has become notably warmer this century but the rainfall trend has not beenevident,mainly negative.In the 1980s China's rainfall and temperature showed noticeable regionalfeatures: warm and dry in North China,cold and dry in the Southwest,warm and wet in theNortheast,cold and wet in the middle-lower reaches of the Changjiang River.Besides,the fourinterdecadal climate change features and ranges of this century have been studied.It is found that onthe scale of several decades there was considerably less rainfall in the most part of China in the warmbackground than in the cold background.The increase of temperature which started from the 1970smainly happened in the Northwest and Northeast,while to the south of the Huanghe River thetemperature increase did not even as great as in 1940s.The corresponding rainfall feature is that mostareas experienced much less rainfall except the area to the south of the Huanghe River and over theChangjiang and Huaihe River basin.  相似文献   

小冰期气候国际会议     

陈家其 《地球科学进展》1992,7(3):103

小冰期气候国际会议于1991年9月25—28日在日本东京都立大学国际交流会馆召开。会议宗旨在于交流世界各地小冰期气候信息,结合当前全球气候增暖,讨论小冰期气候的变化与特征。会议有以下四个议题:A.小冰期气候的气候历史事实;B.由历史文献重建小冰期气候;C.当代气候与小冰期气候;D.小冰期气候成因。  相似文献   

全球增暖下多国旱涝灾害可能情景的初步研究   总被引：5，自引：0，他引：5  

陈家其  施能 《地理科学》1995,15(3):201-207

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太湖流域洪涝灾害的历史根源及治水方略   总被引：2，自引：0，他引：2       下载免费PDF全文

陈家其 《水科学进展》1992,3(3):221-225

太湖流域渲泄不畅的排洪格局,形成于明清,根源在南宋,它是造成洪涝灾害的因素之一.因而“以泄为主、泄蓄并举”应成为太湖流域的治水方略.  相似文献   

从1991年江淮流域特大洪涝灾害论协调人地关系问题     

陈家其 《地理与地理信息科学》1991,(4)

分析江淮流域旱涝灾害,阐述人类活动对洪涝灾害的影响,1991年特大洪涝与人地关系,并提出防治洪涝灾害的若干对策。  相似文献   

ANALYSIS OF HISTORICAL FORMATIONOF AGRICULTURAL AREAS IN SICHUAN BASIN AND GEOGRAPHICAL FACTORS     

陈家其  钟钢 《中国地理科学(英文版)》1997,7(1):30-38

TheagriculturalregionofSichuanBasinislocatedintheeastofSichuanProvince.TheChangjiang(YangtZe)caver,traversingeastandwest,itsbantributariesincludingtheMinjiang,Tuojiang,Jialing,FujiangandQujiangrivers,likefivefingerstoextendtowardsthenorth,disunitedthebasinintoplainsandhills,surroundedbylowandmiddlemountains,theterraindropsrapidlyfromtheexteriortointerior.Thus,asinglephysicalgeographicalunitismadeup.Withthelong-termdeve1Opment,acharacteristicagriculturalregionappealSundertheconditionofric…  相似文献   

太湖流域1991年特大洪涝成因与对策探讨     

陈家其 《湖泊科学》1992,4(2):52-59

受天地生相互作用影响,1991年大气环流异常,太湖流域出现了两度梅雨,雨期长、降水强度大。由于近数十年来,水域环境发生了变化,洪水出路不畅,6—7月间发生了特大洪涝,其特征是:降水逊于历史,水位超历史;成灾面积不及历史,经济损失远超历史。协调人地关系不善,加剧了这次洪涝灾害。因而,在统一规划下,协调好人地关系,是重要的减灾对策。  相似文献   

长江三角洲千年冬温序列与古里雅冰芯比较   总被引：9，自引：5，他引：4  

陈家其  施雅风 《冰川冻土》2002,24(1):32-39

利用长江三角洲史料优势,重建公元820年代以来,年代级冬温序列.为测试古里雅冰芯记录的影响力,与之作比较研究.结果显示:其年代级变化背景有很好的对应关系,年代级变化有大同小异的复杂情况.舍弃量级,就年代级温度,降水升降,约有一半是同步的,且有大致对应的温湿组合.说明两地虽远隔数千公里,环境生态条件悬殊,年代级气候变化仍有响应.最后就形成响应的成因机制作初步分析。  相似文献