Symposium On Sediment Storage In Rivers And Estuaries

Book Reviewed in this article:

Geographical Aspects of Health and Disease in India. Rais Akhtarand A.T.A. Learmonth, eds.

Antarctic Treaty System: An Assessment. Proceedings of a Workshop at Beardmore South Field Camp, Antarctica.

American Electoral Mosaics. J. Clark Archerand Fred M. Shelley.

Kompas op Suidwes-Afrika/Namibie. W.S. Barnard, ed.

Jerusalem in the 19th Century: The Old City. Yehoshua Ben-Arieh.

The World as a Total System. Kenneth E. Boulding.

A Social History of Housing 1815–1985, Second Ed. John Burnett.

Human Migration. W.A.V. Clark.

Regional Population Projection Models. Andrei Rogers.

The State of Population Theory: Forward from Malthus. David Colemanand Roger Schofield, eds.

Imagining Tomorrow: History, Technology and the American Future. Joseph C. Corn, ed.

Swidden Agriculture in Indonesia: The Subsistence Strategies of the Kalimantan Kantú. Michael R. Dove.

Glacial Geologic Processes. David Drewry.

Physics of Desertification. Farouk El-Bazand M.H.A. Hassan, eds.

Housing the Homeless. Jon Ericksonand Charles Wilhelm, eds.

Settlement Patterns in Missouri: A Study of Population Origins, with a Wall Map. Russel L. Gerlach.

Desert Development: Man and Technology in Sparselands. Yehuda Gradus, ed.

Nuclear Winter. The Evidence and Risks. Owen Greene, Ian Percivaland Irene Ridge.

The Take-off of Suburbia and the Crisis of the Central City. Günter Heinritzand Elisabeth Lichtenberger, eds.

Regional Input-Output Analysis. Geoffrey J. D. Hewings.

Spatial Transportation Modeling. Christian Werner.

The Atlas of Georgia. Thomas W. Hodlerand Howard A. Schretter, eds.

Latin America. 5th ed. Preston E. Jamesand C.W. Minkel.

Applied Remote Sensing. C.P. Lo.

Localities, Class, and Gender. The Lancaster Regionalism Group.

Urban Social Movements: The City after Castells. Stuart Lowe.

Politics and Method. Doreen Masseyand Richard Meegan, eds.

Land Use. A. S. Mather.

The Kingdom of Coal. Donald L. Millerand Richard E. Sharpless.

The Presidio and Militia on the Northern Frontier of New Spain, A Documentary History, Vol. 1: 1570–1700. Thomas H. Naylorand Charles W. Polzer, S.J., comps. andeds.

Nuclear Power: Siting and Safety. Stan Openshaw.

The Central African Republic: The Continent's Hidden Heart. Thomas O'Toole.

Environmental and Dynamic Geomorphology. Márton Pécsi, ed.

Remote Sensing Principles and Interpretation. Floyd F. Sabins, Jr.

Acid Rain and Friendly Neighbors: The Policy Dispute between Canada and the United States. Jurgen Schmandtand Hilliard Roderick, eds.

Earth's Changing Surface: An Introduction to Geomorphology. M.J. Selby.

International Migration: The Female Experience. Rita J. Simonand Caroline B. Brettell, eds.

On Geography and Its History. D.R. Stoddart.

Transportation Networks: A Quantitative Approach. D. Teodorovic.

Processes in Physical Geography. R.D. Thompson, A.M. Mannion, C.W. Mitchell, M. Parry, J.R.G. Townshend.

Imaging Radar for Resources Surveys. J.W. Trevett.

Dominance and Affection: The Making of Pets. Yi-Fu Tuan.

Capturing the Horizon. The Historical Geography of Transportation since the Transportation Revolution of the Sixteenth Century. James E. Vance, Jr.

Nations at Risk: The Impact of the Computer Revolution. Edward Yourdon.     

LAND RECLAMATION PROCESS IN NORTHEAST CHINA SINCE 1900

Landuse/coverchange(LUCC)isafocalthemeandemergingissueinthestudyofglobalenvironmentalchange.Humanmodificationsandalterationstotheenvironmentcauseimpactsonthesurfaceoftheearth,threatenglobalsustainabilityandlivelihoodsystems,andcontributetochangeinthebiogeochemicalcyclesoftheearth,whichinturnaffectatmosphericlevelsofgreenhouseandothertracegases.ConsequentlytheInternationalGeosphere-BiosphereProgram(IGBP)andtheInternationalHumanDimensionsProgram(IHDP)initiatedLUCCProgramtodevelopabette…     

分省普通地理图数据建库与编研——以新世纪版《国家普通地图集》为例

新世纪版《中华人民共和国国家大地图集》编研项目的重要成果之一是《国家普通地图集》,而《国家普通地图集》的主要内容是分省地理图。新版分省地理图的编研,本着"先建库、后制图"的设计理念,充分利用国家1:1000 000基础地理信息数据库成果,并采用基于数据库的自动配图技术。本文主要介绍分省地理图的成果形态、编制技术路线、工艺流程和关键技术等。     

Evidence of hybridisation within the genus Chrysoblephus and conserved nuclear sequences of South African sparids (Teleostei: Sparidae)

Several hybridisation events have been recorded in marine fish, yet there is little information for southern African species. Here we present evidence for hybridisation within the genus Chrysoblephus (Sparidae), by analysing a fish caught off KwaZulu-Natal, off the east coast of South Africa. We utilise three mitochondrial (16S, COI and Cyt b) and four nuclear markers (1st intron of the S7 ribosomal protein gene, Tmo-4C4, Histone 3 and 18S rRNA) to resolve the hybrid parentage. MtDNA analyses support C. anglicus as the maternal lineage. Analyses of the Tmo-4C4 gene and the first intron of the S7 gene show six and four heterozygous positions for the hybrid fish respectively. The heterozygous positions are shared by C. anglicus and C. puniceus, which suggests C. puniceus to be the paternal lineage, with the hybrid being a first generation cross. Morphologically, the hybrid mostly resembles C. puniceus, with some meristic counts overlapping with other sparid species. Interestingly, only two of the four nuclear markers show variation within the sparids sampled in this study; 1 160 bp of 18S rRNA and Histone 3 were invariable even between the genera Chrysoblephus, Gymnocrotaphus, Petrus and Pachymetopon, suggesting conserved nuclear evolution or a rapid speciation within this group of endemic fishes.     

濮城油田沙一段的储层非均质性研究

储层性质的好坏直接影响到油层的产能,注水效果及石油采收率。对濮城油田沙一段储层的非均质性从层内、层间、平面的非均质性三个方面作了系统研究,该区储层的非均质程度以严重非均质型为主,层内夹层多,层间非均质性强,层间隔层分布稳定,平面非均质性较强,油田开发以层内矛盾为主,所以研究层内非均质特征能为揭示砂体展布及合理划分开发单元,选择注采系统,为改善油田的开发效果,进行二、三次采油提供可靠的地质依据。     

新世纪防震减灾工作措施探讨

地震灾害造成的损失随社会发展而加重。经济迅速发展的我国新世纪防震减灾应采取新措施；需要提高地震设防标准，鼓励部分建筑先坚固起来，使我国建设的抗震能力在几十年内逐步达到国际先进水平；应在全国范围内抑制虚报，科学地确定地震预报的震级下限,通过清理地震预报方法提高报准率，从总体上提高地震预报效益；应重视震时应急行动的研究；应加强企业的防震减灾工作，并通过立法加以落实。     

天然气:21世纪我国国民经济新的增长点

“天然气－21世纪的能源”已成为全人类的共识，新气田的不断发现，储量的不断增长和新的跨国输气管线的建成以及贸易范围的扩大加速了天然气工业的全球化和全球天然气化的进程，以煤为主的中国能源工业面对这难得的国际经济环境和国外已经充分开发利用的天然气技术系统以及国内日益高涨的需求呼声，审时夺势，顺应潮流，适时调整了能源战略，加大了天然气勘探力度，不断摸清了资源家底，使储量和产能大幅度增长，并陆续启动了基础设施建设项目，我国天然气孕育着大开发，大发展的喜人前景，可以预料，天然气工业将成为21世纪我国国民经济新的增长点。     

地球系统的碳循环和资源环境效应

地球系统的碳循环,制约着一系列资源环境问题的形成和发展.掌握其运行规律和机制,将为可持续发展提供重要的知识支撑.本文回顾了数百年来人类对碳循环认识的历史,概述了20世纪最后年代,通过IGBP,IGCP等国际计划,以及一些国家计划对全球碳循环所作的观测、试验和模型分析所获得的重要成果.同时也指出了当前国际碳循环研究中在学术思路、观测试验工作布署,以及对碳循环有关的资源环境问题研究等方面不足之处,特别是一些重大国际计划存在着忽视地质作用对全球碳循环影响的问题.在此基础上,对21世纪初全球碳循环研究可能出现的热点作了分析,并建议我国的碳循环研究,除了要继续积极参与各种多边国际合作计划,作出我们应有的贡献外,还应根据我国的地域优势,选碳酸盐岩地区的碳循环,和碳循环的资源环境问题两个突破口,作重点深入研究.     

Annual variation rate of global sea-level rise and the prediction for the 21st century

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