2008大学生GIS软件开发竞赛武大折桂

2008年12月6日,2008 ESRI杯中国大学生GIS软件开发竞赛(简称"ESRI开发竞赛")应用开发组总决赛在北京港澳中心瑞士酒店成功举办.经过5个多小时的紧张演示与激烈答辩,武汉大学的"武汉大学导航信息平台"最终从入围的10组作品中脱颖而出,一举夺得本次大赛应用开发组的桂冠,比赛结果最终出炉.     

"第三届高校ArcGIS地理信息系统应用开发竞赛"顺利进行

由中国地理信息系统协会主办,中国地理信息系统协会教育与科普专业委员会、ESRI中国(北京)有限公司、ESRI中国(北京)培训中心协办的“第三届高校ArcGIS地理信息系统应用开发竞赛”的报名工作已经结束。共收到报名参赛作品100个,涉及人数超过350人,其中本科生占60%,研究生占35%,博士生占5%。从报名情况看,本科生参赛人数大大超过往届,这说明高校竞赛的影响力正在逐渐扩大,吸引更多低年级的学生参与、尝试与实践。目前,竞赛软件已经全部发送完毕,参赛选手可以登陆竞赛论坛网站进行技术咨询(http://www.arcgisworld.com/forum/list.asp?bo…     

2008ESRI开发竞赛首轮报名结束逾1000人参加

4月31日，2008ESRI杯中国大学生GIS软件开发大赛首轮报名宣告结束。截至目前，已经有来自80多所高校的1000多名学生报名参加了此次比赛。其中，报名参加初级试题组的为344人，空间处理与建模组的为63组204人，应用开发组的为160组493人。除了初级试题组报名已经截止外，其他两组仍在接受报名。据悉，今年的竞赛主题是——GIS也可以很酷!     

GIS——沟通世界的语言

“GIS——沟通世界的语言”(GIS Communicating Our World)是美国环境系统研究所(Environmental Systems Re-search Institute,Inc.简称ESRI)今年全球用户大会的主题。2006年11月6日,由全球最大的GIS技术提供商ESRI主办,中国地理信息系统协会、中国遥感协会和北京大学数字中国研究院协办的“第七届ArcGIS暨ERDAS中国用户大会”在北京国际会议中心开幕。据悉,ESRI全球用户大会目前共举办了26届,在中国每两年一届,本次会议为期三天。     

第八届ESRI中国用户大会论文集征稿通知

2009年第八届ESRI中国用户大会将于10月20日-22日在北京举行。会议将针对ESRI最新技术与产品发展规划、GIS最新应用、成功案例等做专题研讨和交流,并邀请ESRI资深专家及我国著名专家学者做大会主题、专题报告。     

《地理信息世界》关于加强地理信息内容出版的管理规定

2009年第八届ESRI中国用户大会将于10月20日-22日在北京举行。会议将针对ESRI最新技术与产品发展规划、GIS最新应用、成功案例等做专题研讨和交流,并邀请ESRI资深专家及我国著名专家学者做大会主题、专题报告。     

GIS走进西部全球地理信息首强在乌鲁木齐拉开巡展序幕

2007年3月27日,由全球最大的GIS技术提供商ESRI主办,新疆堆吾尔自治区测绘局和中国科学院新疆生态与地理研究所共同协办,以“共享最新技术创新行业应用”为主题的“2007ESRI中国(北京)有限公司全国巡展”在乌鲁木齐拉开帷幕。     

ESRI中国（北京）有限公司推出网上“图书中心”

ESRI中国图书中心（books．esrichina-bj．cn）日前正式上线，此图书中心是ESRI中国（北京）有限公司和北京搜海书店共同构建的网上GIS图书服务平台，旨在为广大地理信息系统爱好者和用户提供一个查询、了解、获取GIS相关图书资源的畅通渠道。     

ESRI中国(北京)有限公司成都办事处成立

4月18日,ESRI中国(北京)有限公司成都办事处成立仪式在成都举行,四川省副省长杨志文先生,四川省信息产业厅副厅长施晓川先生,四川省测绘局副局长余国珊先生、史同和先生,以及来自西南地区公安、国土、石油、环保、电力、烟草、通信、教育、规划等行业的主管领导和长期支持我们的合作伙伴齐聚一堂,见证这一瞩目时刻。杨志文副省长,ESRI中国(北京)有限公司何宁总裁,成都办事处总经理杜佃瑞先生共同为办事处的成立揭幕。随后,杨副省长发表了热情洋溢的讲话,他首先代表四川省政府向成都办事处的成立表示热烈祝贺,并且对ESRI中国(北京)有限…     

以小见大看美国人对土地资源的呵护--谈谈赴美考察的一点感受

去年末,笔者参加了省房地产行业的赴美考察.14天的年见所闻,既是一次较好的学习机会,也是一次思考的旅程,尤其对美国土地资源利用方面的感受颇深.     

A Taxonomic Study of the Genus Tinocladia (Chordariales, Phaeophyta) in China Coasts I. Two new species, T. eudesmoides sp.nov. and T. zhangii sp.nov.

1INTRODUCTIONThegenusTinocladiaKylinderivedfromthege nusEudesmeJ.Ag.,wasestablishedbyKylinin1 940 .Untilnow ,fivespecieshavebeenreported .Threespecies,T .crassa (Sur.)Kylin(byC .K .Tseng,1 983 ) ,T .gracilisDingetLuandT .mi crosporangiiDingetLu (byDingetal.,2 0 0 4)inthegenusTinocladiahadbeenreportedtodate.Inthecourseofourinvestigationonthespecimensofthege nusTinocladiacollectedfromtheYellowSeacoastsandkeptintheHerbariumoftheInstituteofOceanolo gy,ChineseAcademyofSciences,twomo…     

Studies on intercropping ofPorphyra haitanensis T. J. Chang et B. F. Zheng with Bay ScallopArgopecten irradians Lamarck

Results of the experiment of northward transplantation ofPorphyra haitanensis showed that intercrop ofP. haitanensis with Bay Scallop is feasible because the growth duration of both of them is about the same in August–December. Full use of cultivating area, lowering its cost and increasing its product per unit area as well as improving the ecological environment are realized during intercrop. Contribution No. 2152 from the Institute of Oceanology, Academia Sinica.     

Genetic variation in parthenogeneticArtemia from the Shandong Peninsula,P.R.C.

Results are presented of a survey of isozyme frequencies in parthenogeneticArtimia from six salterns in the Shandong Peninsula, P.R.C. Three of the eleven enzymes we scored using polyacryamide gel electrophoresis proved to be useful for analysis of electromorph frequency variation. These enzymes are tetrazolium oxidase (TO), lactate dehydrogenase (LDH), and malate dehydrogenase (MDH). Each of these systems showed extensive isozyme variation both within and between salterns. In addition, we have examined the possibility that electromorph frequencies may vary as the result of natural selection for adaptation to specific salinity, or salinity-associated environmental conditions. An indication of clinal variation was found in two series of ponds differing in salinity, however more extensive data are needed before it is possible to conclude that these patterns are the result of natural selection. Finally, the use of isozyme analyses such as ours, for unraveling taxonomic problems inArtemia is discussed.     

Two new marine benthic diatom species of Hippodonta (Bacillariophyceae) from the coast of China: H. nanjiensis sp. nov. and H. qingdaoensis sp. nov.

The diversity and distribution of Hippodonta species on the coast of China are largely unknown due to limited investigations. In this paper, we report the detailed morphology and ultrastructure of two new species: H. nanjiensis sp. nov., collected from intertidal sandy sediments of Nanji Islands, the East China Sea and H. qingdaoensis sp. nov., collected from intertidal sandy sediments of the No. 1 Bathing Beach in Qingdao City, the Yellow Sea. Both species occur mainly in the middle part of the intertidal zone. H. nanjiensis possesses a unique large round central area. H. qingdaoensis differs from congeners in having a unique stria pattern, wherein the areolae in the middle transapical striae are less developed or absent on the primary side of the valve, and two areolae per stria are apparent under light microscopy(LM). This study expands our knowledge of Hippodonta diversity and distribution on the coast of China.     

青海湖近8000年来演变及发展趋势

本文依据紫果云杉(Picea purpurea Mast)残木、部分地层测年资料、湖成地貌,结合树木年轮和湖水观测资料,探讨近8000年来青海湖演变史并概略预测其发展趋势:8000—3500a.B.P.为暖湿期,3500a.B.P.以来渐趋冷干—干旱,600a.B.P.以来又几经暖湿—冷干的更替;在不考虑温室效应的前提下,大致在133年后湖水达补耗水量平衡期;在温室效应的影响下,湖水将提前于下世纪中叶进入补耗平衡期。     

Dinophysoid dinoflagellates from subphotic depths: Amphisolenia sp. aff. brevicauda,Dinofurcula tricornuta sp. nov., and Dinophysis profunda sp. nov. (Dinophysales,Dinophyceae)

Journal of Oceanology and Limnology - Three species of dinophysoid planktonic dinoflagellates are described from the eastern Mediterranean Sea. Amphisolenia sp. aff. brevicauda was collected at...     

U.S. national parks accessibility and visitation

Accessibility is a factor affecting national park visitation. However, the effect of accessibility on national park visitation is not fully understood. This paper examines the relationship between U.S.national park visitation and accessibility. First, the global and local accessibility indexes of each park unit are computed based on an accessibility model that takes into account the surrounding population and its proximity to the park unit. Integrated in the model is a distance decay coefficient that is derived from U.S.national park visitor surveys and therefore pertinent to the case of study. Then correlation analysis is performed between park visitation and accessibility based on park types, regions, and visitation types.Results show that total visitation is positively related to accessibility in National Memorials, Military Parks and Battlefield Parks/Sites but negatively related to accessibility in national parks and national monuments. However, recreational overnight stay visits are commonly negatively correlated to accessibility for almost all park types. Moreover, local accessibility index displays enhanced correlation coefficients with improved significance levels in many categories of analysis. Results suggest that historical/cultural national parks which often show positive correlations tend to attract more local visitors,but nature-based parks which mainly show negative correlations tend to attract more distant visitors.