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1.
江苏沿海互花米草盐沼动态变化及影响因素研究   总被引:8,自引:2,他引:8  
收集1988~2001年12个时相的江苏盐城幅卫星影像,提取双洋河口至梁垛河闸之间的互花米草盐沼,统计不同时期的分布信息。分析表明:互花米草盐沼在江苏扩张非常迅速,到2001年7月互花米草盐沼分布面积达129.28km^2,从射阳河口至梁垛河闸之间的潮间中上带泥滩大部分已被互花米草盐沼所覆盖;由于生态位的影响,互花米草盐沼沿平行于海岸线方向扩张速度快于垂直于海岸线方向的扩张速度;依据野外调查和卫星影像分析,互花米草盐沼扩张可分为立地、快速扩张及成熟3个阶段。此外,还对互花米草盐沼的影响因素进行了探讨。  相似文献   

2.
王为  吴正 《地理研究》1999,18(4):382-390
华南全新世海岸沙丘岩和海滩岩同是热带、亚热带海岸线附近的胶结的岩石,其沉积儿构造极为相似,很容易混淆。人工神经网络是最近发展起来的一种信息处理方法,可以处理模糊的,非线性的、含有噪声的数据,为海滩岩和沙丘岩的识别提供了一种新方法。用华南海岸风成砂和海滩砂的粒度参数作为训练样本,华南海岸全新世沙丘岩和海滩碉的粒度参数作为测试样本,经过训练的B-P网络能够根据海滩砂和海岸沙丘砂的粒度参数来区分大部分的  相似文献   

3.
向海洋方向入侵的互花米草(Spartina alterniflora)不仅能改变河口生态系统中磷元素的生物地球化学过程,而且能对河口生态系统的稳定和健康产生深刻影响。2019年4月(春季),在闽江河口鳝鱼滩东部的互花米草分布区,采用时空互代法,由陆地向海洋方向,选择互花米草已经入侵5~6 a的盐沼、互花米草已经入侵1~2 a的盐沼和光滩作为研究对象,在互花米草向海洋方向入侵条件下,研究植物—土壤系统中磷的赋存特征及其主要影响因素。研究结果表明,在互花米草向海洋方向入侵条件下,闽江河口鳝鱼滩东部的盐沼土壤中的全磷含量增大;与光滩相比,互花米草入侵5~6 a和1~2 a的盐沼土壤中的全磷含量分别增加了51.6%和27.1%;互花米草向海洋方向入侵不仅改变了盐沼土壤的颗粒组成、电导率、土壤有机质含量和全磷含量,而且改变了互花米草各器官中的全磷含量、磷累积系数和器官之间的磷转运能力;在互花米草已经入侵5~6 a的盐沼中,互花米草主要是通过减小根冠比和提高对磷的吸收和利用,维持其自身的生长;在互花米草已经入侵1~2 a的盐沼中,互花米草则是通过增大根冠比和提高根系向地上器官转运磷的能力,维持其自身的生长。互花米草向海洋方向入侵整体增大了植物—土壤系统的磷储量,提高了土壤有效磷养分的供给能力,这些都有利于加快互花米草向海洋方向入侵的速度。  相似文献   

4.
自1979年引进中国以来,互花米草(Spartina alterniflora)在沿海地区迅速传播,破坏当地滨海生态环境,研究预测互花米草的适生新区域是管控互花米草并防止其进一步传播的重要途径。使用最大熵模型(MAXENT)对中国互花米草的生态位进行建模,并通过受试者工作特性(ROC)曲线对模型的准确性进行评估。结果表明:互花米草在中国的潜在分布区域相当大,上海、浙江、福建、广东、广西、江苏和安徽等省市的沿海地区易受到互花米草入侵。因此,须在这些易被入侵的区域采取有效措施,如早期根除计划以防止互花米草的进一步扩散蔓延。  相似文献   

5.
不同时期刈割对互花米草生长影响的研究   总被引:2,自引:0,他引:2  
采用不同时期对互花米草(Spartina alterniflora)进行齐地面刈割的方法,通过对互花米草株高和株数的测定和比较,确定了有效控制互花米草扩张的刈割时期.研究结果表明:①月22日对互花米草的刈割处理显著促进了互花米草株数的增加,但对其最终平均株高未产生影响.5月22日的刈割处理下,虽然互花米草在株高上略高于对照(未刈割)处理,但处理后其株数大大减少,与对照处理相比有明显差异.6月21日和7月21日的刈割处理,不仅使互花米草株高降低,也使其株数减少;尤其是7月21日的刈割处理下,互花米草的株数和株高都与对照处理有非常明显的差异.8月20日和9月19日的刈割处理,极大促进了互花米草的再萌发和再生长.②5~7月的刈割处理,可以有效减少互花米草的活根生物量;而4月和8~9月的各刈割处理,增加了互花米草的活根生物量,其中4月22日的刈割处理与对照处理相比,显著促进了互花米草活根生物量的增加.各刈割处理都会造成互花米草死根生物量的增加.③有效控制互花米草种群扩张的刈割时期是6~7月互花米草的穗分化期、孕穗期至抽穗期.  相似文献   

6.
采用遥感与野外调查相结合的方法,调查2013年广西海岸互花米草(Spartina alterniflora)的分布现状,并分析其在广西海岸的扩散状况,旨在为全面了解和评价外来物种互花米草在广西海岸的入侵状况和生态作用提供基础数据。研究结果表明,12013年,广西互花米草的分布面积为602.27 hm2,以港湾划分,其在丹兜海的分布面积最大,其分布面积在铁山港湾、北海银滩至营盘镇、廉州湾、英罗港、大风江依次减小;2广西从1979年开始引种互花米草,1979~2003年互花米草的年平均扩散速率约为23.1%,2003~2008年的为15.3%,2009~2013年的约为9.1%,互花米草总体扩散速率呈现下降趋势;3近期,铁山港湾、北海东海岸(银滩至营盘镇)和廉州湾的互花米草依然在快速扩散,尤其是廉州湾的互花米草处于种群扩散的爆发期,未来几年,廉州湾很可能将会被互花米草占据;4互花米草在广西海岸的扩散总体上呈现出由东往西发展的趋势,并且有扩散进入越南的可能性。  相似文献   

7.
为了探究互花米草(Spartina alterniflora)入侵下滨海湿地潮沟的发育特征及其变化,采用随机森林分类技术和统计学分析方法,研究了2004~2020年黄河三角洲湿地互花米草的入侵过程,揭示了互花米草持续扩张下潮沟的形态特征及其变化。研究结果表明,现行黄河入海口两侧区域的互花米草群落扩张迅速,截至2020年7月,研究区互花米草群落面积已经达到4406.95 hm2;2012~2016年期间,互花米草群落的扩张速度和扩张动态度都相对最大,分别为490.2 hm2/a和45.9%;在互花米草入侵和持续扩张的条件下,黄河三角洲滨海湿地潮沟的分支增多,平均面积减小,总长度变长,平均长度缩短,平均宽度变窄,景观连通度变差;互花米草的入侵使潮沟形态发生了显著变化,在互花米草入侵区,潮沟的分支增多,平均长度缩短,平均宽度变窄。  相似文献   

8.
广西北海市滨海湿地互花米草入侵对大型底栖动物的影响   总被引:1,自引:0,他引:1  
为了解互花米草(Spartina alterniflora)入侵对滨海湿地大型底栖动物的生态危害,于2012年10月,在广西北海市丹兜海、青山头和西村港选取了入侵年限为20 a以上、5 a以上和1 a左右的互花米草群落,进行大型底栖动物调查,分析各生境大型底栖动物群落结构和生物多样性。结果表明,不同的互花米草群落土壤中的大型底栖动物物种组成不同。基于非度量多维度(non-metric multidimensional scaling,NMDS)分析发现,入侵20 a以上的互花米草群落与其他互花米草群落土壤中的大型底栖动物群落结构相似度很低;大型底栖动物物种生物量随着互花米草群落入侵时间的延长而降低,且这种差异与互花米草密度显著相关(p0.05);不同互花米草群落土壤中的大型底栖动物的多样性之间差异不显著(p0.05),物种数量在入侵约1 a的互花米草群落土壤中升高,在入侵20 a以上的互花米草群落土壤中下降,而大型底栖动物的均匀度指数则与之相反;回归分析表明,大型底栖动物多样性的变化与互花米草密度显著相关。  相似文献   

9.
互花米草Spartina alterniflora已成为我国海岸滩涂湿地生态系统最主要的入侵植物之一,对我国沿海湿地土壤生态系统产生了重大的影响。为进一步探究互花米草的入侵机理,选择滨海湿地土壤生态系统为切入点,拟从互花米草入侵我国滨海湿地对土壤生态系统物质循环(土壤有机碳、土壤氮和重金属)和土壤生物(底栖动物和土壤微生物)两方面的影响进行归纳总结,阐明互花米草入侵后土壤生态系统的变化过程,并重点对互花米草入侵后土壤有机碳的增减变化进行系统梳理,为互花米草的生态治理和湿地生态系统的保护与恢复提供参考。  相似文献   

10.
近年来,胶州湾五河口区域互花米草群落扩展迅速。为分析互花米草群落的扩展趋势,利用2009年以来5个年度卫星历史影像,勾绘互花米草群落图斑并统计其扩展面积,分析其扩展趋势以及对生态环境的影响。结果表明:(1) GoogleEarth软件具有强大的历史影像数据库,可以快速查询1984年以来互花米草的历史影像资料,根据勾绘图斑计算面积,分析图斑消长变化;(2) 8年间,胶州湾五河口区域互花米草从无到有,群落面积现已扩展到215 hm~2;(3)预测在没有人为干预的情况下,2020年互花米草群落面积可扩展到500 hm~2;(4)以机械收割作为饲料或在萌芽期摘芽作为蔬菜等利用方式可以控制互花米草群落蔓延。  相似文献   

11.
BOOK REVIEWS     
Book Reviewed in this article: Development and Environment in Peninsular Malaysia . S. Robert Aiken, Colin H. Leigh, Thomas R. Leinbach, Michael R. Moss. The Rural-Urban Fringe: Canadian Perspectives . Ken B. Beesley and Lorne H. Russwurm, eds. Women and Development . Lourdes Benería, ed. The Border that Joins: Mexican Migrants and U.S. Responsibility . Peter G. Brown and Henry Shue, eds. Cities of the World: World Regional Urban Development . Stanley D. Brunn and Jack L. Williams, eds. Time Resources, Society, and Ecology: On the Capacity for Human Interaction in Space and Time (Vol. I, Preindustrial Societies). Tommy Carlstein. Urban Geography . David Clark. Spanish City Planning in North America . Dora P. Crouch, Daniel J. Garr, and Axel I. Mundigo. Not On Our Street: Community Attitudes to Mental Health Care . M. J. Dear and S. M. Taylor Unequal growth: Urban and Regional Employment Change in the U.K. Stephen Fothergill and Graham Gudgin. Agricultural Land in an Urban Society . Owen J. Furuseth and John T. Pierce. The Petroleum Industry in Oil-Importing Developing Countries . Fariborz Ghadar. Historical Understanding in Geography, An Idealist Approach . Leonard Guelke. Regional Planning in Europe . R. Hudson and J. R. Lewis, eds. Remote Sensing for Resource Management . Chris J. Johannsen and James L. Sanders, eds. Geography and The State . R. J. Johnston. Texas Graveyards: a Cultural Legacy . Tlrry G. Jordan. The Politics of Location: An Introduction . Andrew Kirby. A Social Geography of the City . David Ley. Energy and the Future . Douglas MacLean and Peter Brown, eds. The Natural Environment of Newfoundland Past and Present . A. G. Macpherson and J. B. Macpherson, eds. Tourism: Economic, Physical and Social Impacts . Alister Mathieson and Geoffrey Wall. Railroads and Land Grant Policy: A Study in Government Intervention . Lloyd J. Mercer. Progress in Rural Geography . Michael Pacione, ed. Progress in Urban Geography . Michael Pacione, ed. Models of Spatial Inequality: Settlement Patterns in Historical Archaeology . Robert Paynter. Natural Hazard Risk Assessment and Public Policy, Anticipating the Unexpected . William J. Petak and Arthur A. Atkisson. The Nature of Geomorphology . Alistair F. Pitty. Regional Conflict and National Policy . Kent A. Price Women and Spatial Change: Learning Resources for Social Science Courses . Arlene C. Rengert and Janice J. Monk, eds. Urban and Regional Analysis for Development Planning . Richard Rhoda. Rivers: Form and Process in Alluvial Channels . Keith Richards. This Remarkable Continent: An Atlas of United States and Canadian Society and Culture . John F. Rooney, Jr., Wilbur Zelinsky, and Dean R. Louder, gen. eds. The Origins of Open-Field Agriculture . Trevor Rowley, ed. Residential Location Determinants of the Older Population . Gundars Rudzitis. Borderland Sourcebook: A Guide to the Literature on Northern Mexico and the American Southwest . Ellwyn R. Stoddard, Richard L. Nostrand, and Jonathan P. West, eds. Arctic and Antarctic . David Sugden. Tall Timbers Ecology and Management Conference, February 22–24, 1979, Proceedings No. 16 . Graphic Communication and Design in Contemporary Cartography (Progress in Contemporary Cartography , Vol. II). D. R. Fraser Taylor, ed. Living with Energy Shortfall: A Future for American Towns and Cities . Jon Van Til. The United States: Habitation of Hope . J. Wreford Watson. Air Photo Interpretation for Archaeologists . D. R. Wilson. Urban and Rural Change in West Germany . Trevor Wild, ed. Population and Resources . Harry Robinson.  相似文献   

12.
<正>1 Introduction In 2013,Chagusaba,which is traditional tea-grass integrated system in Shizuoka,were accepted as new world heritage site of agriculture.Shizuoka prefecture occupies a variety of elevations,from 0 to 3000m or more above sea level.Because of the diversity of land features and climates,this area produces 167 agricultural commodities.In addition,a lot of traditional agriculture and over200 local native varieties of crops have been conserved in Shizuoka  相似文献   

13.
<正>There are more than 10000 years of agricultural development history in the world that has provided very fruitful and ingenious traditional knowledge and experiences reflecting the evolution of humanity and the nature.In2002,the Food and Agriculture Organization of the United Nations(FAO)initiated an international partnership initiative of"Conservation and Adaptive Management of Globally Important Agricultural Heritage Systems  相似文献   

14.
15.
BOOK REVIEWS     
Book Reviewed in this article: Geography and the Third World. International Seminar, 14–18 May 1980, Kuala Lumpur, Malaysia . Ishmail Ahmad and Jamaluddin Md Jahi, eds. The Growth Dilemma: Residents' Views and Local Population Change in the United States . Mark Baldassare. Sport and Place: A Geography of Sport in England, Scotland & Wales . John Bale. The Deindustrialization of America: Plant Closings, Community Abandonment, and the Dismantling of Basic Industry . Barry Bluestone and Bennett Harrison. Selected Essays 1963–1975: Carl O. Sauer . Bob Callahen, ed. Housing and Planning in the Countryside . G. Clark. Conflict, Politics and the Urban Scene . Kevin R. Cox and R. J. Johnston, eds. Thematic Maps: Their Design and Production . David J. Cuff and Mark T. Mattson. Wine: A Geographic Appreciation . Harm Jan de Blij. USSR in Maps . J. C. Dewdney. Political Geography: A Contemporary Perspective . Ramesh D. Dikshit. Rethinking Human Adaptation . Rada Dyson-Hudson and Michael A. Little, eds. Sacred Sands: The Struggle for Community in the indiana Dunes . J. Ronald Engel. Geography of the Biosphere . A. Furley and Walter W. Newey. Disaster and Reconstruction . Robert Geipel. Glasgow: The Making of a City . Andrew Gibb. Design for Arid Regions . Giden S. Golany, ed. Urbanization and Cancer Mortality: The United States Experience, 1950–1975 . Michael R. Greenberg. Geology in the Nineteenth Century: Changing Views of a Changing World . Mott T. Greene. Colonización y Destrucción de Bosques en Panamá . Stanley Heckadon Moreno and Alberto McKay, eds. Urban Geography: A First Approach . David T. Herbert and Colin J. Thomas. The Visual and Spatial Structure of Landscapes . Tadahiko Higuchi. Climate from Tree Rings . M. K. Hughes, P. M. Kelly, J. R. Pilcher, and V. C. LaMarche, Jr., eds. The structure of Nineteenth Century Cities . James H. Johnson and Colin G. Pooley, eds. The American Planner: Biographies and Recollections . Donald A. Krueckeberg, ed. Urban Land Policy For the 1980s, the Message for State and Local Government . George Lefcoe, ed. Regional Planning: Evolution, Crisis and Prospects . Gill C. Lim, ed. Relevance and Ethics In Geography . Bruce Mitchell and Dianne Draper. China: The Geography of Development and Modernization . Clifton W. Pannell and Laurence J. C. MA. The Urban Retailing System . Robert B. Potter. Hants. Nonconventional Energy Resources . Philip R. Pryde. Caribbean Migrants: Environment and Human Survival on St. Kitts and Nevis . Bonham C. Richardson. Population and Resources . Harry Robinson. East Los Angeles: History of A Barrio . Ricardo Romo. Integrated Impact Assessment . Frederick A. Rossini and Alan L. Porter, eds. Environmental Aesthetics: Essays in Interpretation . Barry Sadler and Allen Carlson, eds. Earthwatch . Charles Sheffield. Field Techniques and Research Methods in Geography . Robert H. Stoddard. Haiti: Land of Poverty . Robert J. Tata. Weathering and Erosion: Sources and Methods in Geography . Stephen T. Trudgill. Once Beneath the Forest. Prehistoric Terracing in the Río Bec Region of the Maya Lowlands . B. L. Turner, II. The Historical Geography of Scotland since 1707 . David Turnock.  相似文献   

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BOOK REVIEWS     
Book Reviewed in this article: The City in Cultural Context . John Agnew, John Mercer, David Sopher, eds. Soils and Geomorphology Peter W. Birkeland. Urbanization and Settlement Systems, International Perspectives . L. S. Bourne, R. Sinclair, and K. Dziewoński. eds. An Introduction to Urban Historical Geography . Harold Carter. Overshoot, The Ecological Basis of Revolutionary Change . William J. Catton, Jr. Rivers of the World . Eberhard Czaya. Jewish Communities in Frontier Societies: Argentina, Australia and South Africa . Daniel J. Elazar with Peter Medding. Color in Public Spaces: Toward a Communication-Based Theory of the Urban Built Environment. Kenneth E. Foote. Spatial Statistics and Models. Gary L. Gaile and Cort J. Willmott, eds. Mega-Geomorphology. Rita Gardner and Helen Scoging, eds. Technological Change and Regional Development. Gillespie, ed. The Arid Lands: Their Use and Abuse. R. L. Heathcote. The Location of Industry in Britain. A. G. Hoare. Groundwater as a Geomorphic Agent . R. G. LaFleur, ed. Rural Public Services: International Comparisons. Richard E. Lonsdale and Gyorgy Enyedi, eds. Saving Water in a Desert City. William E. Martin, Helen M. Ingram, Nancy K. Laney, and Adrian H. Griffin. Water Resources: Distribution, Use and Management. John R. Mather. Transnationals and the Third World: The Struggle for Culture. Armand Mattelart. South Hadley, MA: USGS Digital Cartographic Data Standards. R. B. McEwen, R. E. Witmer, and B. S. Ramey, eds. The Ecosystem Concept in Anthropology. Emilio F. Moran, ed. Boulder, CO: Women, Men, and the International Division of Labor. June Nash and Maria Patricia Fernandez-Kelly, eds. Nuclear Power: Assessing and Managing Hazardous Technology. Martin J. Pasqualetti and K. David Pijawka, eds. Mary Somerville and the Cultivation of Science 1815-1840. Elizabeth Chalmers Patterson. An Introduction to Coastal Geomorphology. John Pethick. Late Quaternary Environments of the United States , Vol. 1, The Late Pleistocene. Stephen C. Porter, ed. Planning and Ecology. R. D. Roberts and T. M. Roberts, eds. Regionalism and the Pacific Northwest. William G. Robbins, Robert J. Frank, and Richard E. Ross, eds. Environment and Health. Anthony J. Rowland and Paul Cooper. Sunbelt/Snowbelt: Urban Development and Regional Restructuring. Larry Sawers and William K. Tabb, eds. The Bad Earth. Environmental Degradation in China. Vaclav Smil. Armonk, NY: Voyage into Substance: Art, Science, Nature, and the Illustrated Travel Account, 1760–1840. Barbara Maria Stafford. The Institute of British Geographers: The First Fifty Years. Robert W. Steel. Visions of the Past. Christopher Taylor and Richard Muir. Glacial Lake Agassiz. J. T. Teller and Lee Clayton, eds. The Tule Breakers: The Story of the California Dredge. John Thompson and Edward A. Dutra. The Balkan City 1400–1900. Nikolai Todorov. Explanation, Prediction and Planning: the Lowry model. Michael J. Webber. Mercedes Reales: Hispanic Land Grants of the Upper Rio Grande Region. Victor Westphall. The World Atlas of Revolutions. Andrew J. M. Wheatcroft. The West European City, A Social Geography. Paul White. Urban Elites and Mass Transportation. J. Allen Whitt. Princeton, NJ: Urban Life In Contemporary China. Martin King Whyte and William L. Parish. The Demand for Energy in the Soviet Union. David Wilson. London and Canberra: Rethinking Geographical Inquiry. J. David Wood, ed.  相似文献   

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Reviews of geographic software in this article:

DEMO-GRAPHICS: WORLD POPULATIONS AND PROJECTIONS.

ESP

GAUSS.

CEMODEL S. Damus

LIMDEP. William H. Greene

MICROSTAT 4.1

OTIS

PCIPS. (Personal Computer Image Processing System). H.J. Meyers and R. Bernstein.

REGRESSION ANALYSIS OF TIME SERIES (RATS)

SPSS/PC+

URBAN DATA MANAGEMENT SOFTWARE (UDMS)  相似文献   

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BOOK REVIEWS     
Book Reviewed in this article: Rabat: Urban Apartheid in Morocco . Janet Abu -Lughod . Marketplaces in a Developing Country: The Case of Western Nigeria . Isaac Ayinde Adalemo . Farming Development and Space: A World Agricultural Geography . Bernd Andreae . Section and Party: A Political Geography of American Presidential Elections, from Andrew Jackson to Ronald Reagan . J. Clark Archer and Peter J. Taylor . Women and Space: Ground Rules and Social Maps . Shirley Ardener , ed. European Progress in Spatial Analysis . R. J. Bennett , ed. The Origins of Academic Geography in the United States . Brian W. Blouet Geographic Perspectives on Global Problems . Ronald Reed Boyce . Seasonal Dimensions to Rural Poverty . Robert Chambers , Richard Longhurst and Arnold Pacey eds. The New Nationalism and the Use of Common Spaces: Issues in Marine Pollution and the Exploitation of Antarctica . Jonathan I. Charney , ed. Communications Tomorrow: The Coming of the Information Society . Edward Cornish , ed. The Design of Suburbia . Arthur Edwards . Explorer on the Northern Plains: Lieutenant Gouverneur K. Warren's Preliminary Report of Explorations in Nebraska and Dakota in the Years 1855–56–57. With an Introduction by Frank N. Schubert . The Changing Climate: Responses of the Natural Flora and Fauna . Michael J. Ford . Essentials of Physical Geography . Robert E. Gabler , Robert J. Sager , Sheila Brazier , and Daniel L. Wise. The Road to Jaramillo . William Glen . Valued Environments . John R. Gold and Jacquelin Burgess , eds. Proximity and Preference: Problems in the Multidimensional Analysis of Large Data Sets . Reginald G. Golledge and John N. Rayner , eds. A Search for Common Ground . Peter Gould and Gunnar Olsson , eds. Geography: Its History and Concepts . Arild Holt -Jensen . A Population Geography . Huw R. Jones . The Human Mosaic: A Thematic Introduction to Cultural Geography, 3rd ed. Terry G. Jordan and Lester Rowntree . Urban Social Geography: An Introduction . Paul Knox . The Anatomy of Job Loss: The How, Why and Where of Employment Decline . Doreen Massey and Richard Meegan . The Information Society as Post-Industial Society . Yoneji Masuda . Map Librarianship, 2nd ed. Harold Nichols . India: Cultural Patterns and Processes . Allen G. Noble and Ashok K. Dutt , eds. The God that Limps: Science and Technology in the Eighties . Colin Norman . Geography: An Introductory Perspective . Robert E. Norris , Keith D. Harries and John D. Vitek . The Politics of Technology Assessment . David M. O'Brien and Donald A. Marchand . Ethnic Segregation in Cities . Ceri Peach , Vaughan Robinson and Susan Smith , eds. Churches and Church Membership in the United States, 1980 . Bernard Quinn , Herman Anderson , Martin Bradley , Paul Goetting and Peggy Shriver . Energy in Australia: Politics and Economics . Hugh Saddler . Development from Above or Below? The Dialectics of Regional Planning in Developing Countries . Walter B. Stóuhr and D. R. Fraser Taylor , eds. Human Impact on the Ecosystem . Joy Tivy and Greg O'Hare . Plants and People: Vegetation Change in North America . Thomas R. Vale . The Mapmakers: The Story of the Great Pioneers in Cartography from Antiquity to the Space Age . John Noble Wilford .  相似文献   

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