“西部大开发面临的挑战——-全球变化区域响应研讨会暨第四届CNC-IGBP2001年年会”会议纪要（摘要）

1 会议概况 "西部大开发面临的挑战——全球变化区域响应研讨会暨第四届CNC-IGBP 2001年年会"于2001年12月1～4日在重庆举行.本次会议有3个特点:①社会、人文和自然科学家共同参与,跨学科和集成议题是交流的主体;②注重科学家与政府决策者之间的对话,并取得良好的效果;③青年学者大规模参与.参加这次会议的总人数85人,分别来自中国科学院、科技部、外交部、国土资源部、中国科协、国家自然科学基金委员会、中国气象局、国家海洋局、中国社会科学院、中国林业科学院、兰州大学、复旦大学、厦门大学、新疆大学、西南师范大学、重庆师范学院、中国水产科学院、中国地理学会、中国植物学会、中国林学会等,其中中国科学院、中国工程院院士10人,青年科学家约40人.     

毎个星系都含有暗物质吗?

两个不起眼的星系在学界掀起了轩然大波,但时至今日仍不清楚到底是怎么回事。在距离地球约6000万光年之外——至少有一些天文学家的结论如此,有一对奇特的星系正在引发一场宇宙学骚动。分别被称为NGC 1052-DF2和NGC 1052-DF4,后文简称为DF2和DF4,它们所包含的恒星数量远远少于常见的星系。然而,让天文学家咋舌的并非它们缺少恒星,而是这两个星系似乎不包含暗物质,但暗物质占据着宇宙物质组成的85%。     

THE RISK ASSESSMENT OF THE LONG-DISTANCE OILPIPELINE ENGINEERING

LTkemskS0tu.ce0fL0ng-mstance0nflpeAncEwiceringSincel992,thenskassessmentoflongdistanceoilpipeline(LDOP)inN0rthwestChinahasbeenputtoagendasystematically.TheLD0PconstruCtionfromLiuyUantowntoLu0yangcltymakeuPthemajorpipelineengineeringwhichstrotchesover2,ll5kmandservesasoneofthemaJorcrudeoilpipelinesinnorthWestinlandroponofChina(Figurel).Theriskeventinducedbynaturaldisasterscanbedividedintofourwaysfl.EaffoquakcIhhistory,LD0PenrouteroponsexPenontaleafthquakes.Theearthquakemagntude,scal…     

湿地来了新“客人”

近日,商丘市睢阳区南湖湿地迎来了一群特殊的“客人”——东方白鹳。东方白鹳属于大型涉禽,是国家一级保护动物,主要在东北地区中北部繁殖,被列为濒危物种,全球仅存4000余只,有“鸟界国宝”“鸟类大熊猫”之称。     

On arable land changes in Shandong Province and their driving forces

IntroductionAlmost all the provinces and autonomous regions in China have experienced decrease of arable land in the processes of economic development, population growth and urbanization. The situation is more serious in Shandong Province because of the big population and being an agricultural province. From 1949 to 1999, the arable land was decreased by more than 2 million ha in this province accompanied by rapid population growth. The total population in the province in 1999 was twice of t…     

同好摄影

拍摄时间:2019年6月26日拍摄地点:智利复活节岛器材参数:佳能EOS 6D,EF 16-35 mm f/2.8L Ⅲ USM,16 mm,IS010000,20s,F2.8,10张叠加。图片说明:世界上绝大多数人都生活在北半球,但最壮丽的星空却只有生活在南半球的少数人才能看到。这是智利复活节岛的夜晚,壮丽的南天银河正从海边的棕榈树上升起。     

COMPREHENSIVE PLANNING FOR WATER RESOURCES EXPLOITATION AND WATER POLLUTION CONTROL FOR CHANGLI COUNTY-A CASE STUDY FOR SMALL TOWNS OF CHINA

I.EnvironmeotaICharacterishcsofChangliCountyChangliCoLmtyislocatedinthenortheastermendoftheNorthChinaPlain,nexttoBohaiSeaontheeastandthesouthemendofYanshanMountainsontl1enortl1.Luani1emverWhichrunsthroughthecouotyforn1sthewestemandsouthemboundaryoftitiscoastalcounty.ThenorthempartofthecoUnyishillywithaverageheigltrrangingfrom5oto5Oom,andmostportionintheeastemandsouflempartislocatedonthealluvialplainofLuani1eandYirunarivers,inclilungfromnorthwesttosoutieastwiil1heighrangingfrom2to3m.Tl1…     

Jiaodong Granitoids and Gold Mineralization

Ｊｉａｏｄｏｎｇ　Ｇｒａｎｉｔｏｉｄｓ　ａｎｄ　Ｇｏｌｄ　Ｍｉｎｅｒａｌｉｚａｔｉｏｎ￥ＣｈｅｎＧｕａｎｇｙｕａｎ；ＳｕｎＤａｉｓｈｅｎｇ；ＳｈａｏＹｕｅ（ＤｅｐａｒｔｍｅｎｔｏｆＧｅｏｌｏｇｙａｎｄＭｉｎｅｒａｌＲｅｓｏｕｒｃｅｓ，ＣｈｉｎａＵｎｉ...     

RECORD OF BLOCK ROTATION AND MAGNETIC FIELD REVERSALS IN THE TETHYAN HIMALAYA (HIDDEN VALLEY, CENTRAL NEPAL)

RECORD OF BLOCK ROTATION AND MAGNETIC FIELD REVERSALS IN THE TETHYAN HIMALAYA (HIDDEN VALLEY, CENTRAL NEPAL)     

ANALYSIS OF FOLDS SOUTH OF MALAKAND AND ADJOINING AREAS, NORTH PAKISTAN

ANALYSIS OF FOLDS SOUTH OF MALAKAND AND ADJOINING AREAS, NORTH PAKISTAN1　Can啨ｒｏｔＪ,QuG .CuadernosdeGeologiaiberica ,1998,2 4:311～ 331. 2　DebelmasJ,MascleG .EnsSciencesdelaTerre[M ].Masson ,ed .1991.2 99.3　GaetaniM ,GarzantiE .AAPGBull ,1991,75 (9) :142 7～ 144 6 . 4　HendrixMS ,GrahamSA ,CarrollAR ,etal.GeolSocAmBull,1992 ,10 4:5 3～ 79.. 5　Jia ,Coll.PetroleumIndustryPress,Beijing .1997,2 95 . 6　JiaD ,LuHCaiD ,etal.AAPGBull ,8…