施秉喀斯特地貌世界遗产价值研究

对施秉喀斯特演化环境、地貌类型及分布、地貌演化史、石灰岩与白云岩地貌差异等特征进行研究,试图提炼施秉喀斯特的世界遗产地貌价值。研究表明：施秉喀斯特具有热带―亚热带地区独特的喀斯特地貌演化环境;展示了热带―亚热带地区独特而典型的白云岩峰丛峡谷喀斯特地貌景观,从分水岭至峡谷区呈现了峰林洼地―峰林谷地―峰丛谷地―峰丛峡谷喀斯特地貌逆向回春演替规律,是白云岩峡谷喀斯特地貌形态及地貌演化的模式地;记录了古生代以来3次较大的碰撞运动,即早古生代的加里东运动,晚古生代的海西造山运动,及中、新生代以来的印支运动、燕山运动和喜马拉雅山运动。燕山运动是本区最强烈的造山运动,产生了区内众多褶皱和断裂构造,奠定了施秉地区的地貌构造轮廓。喜马拉雅山运动,尤其是第二、三幕运动,全面塑造了施秉喀斯特峡谷地貌;施秉白云岩喀斯特地貌展现出与石灰岩封闭型地貌不同的以开放型地貌为主的特征,在中国南方喀斯特系列自然遗产中有重要地位,具备地貌世界遗产价值。     

广西都安地下河地质公园喀斯特景观特征 及其形成演化

在对都安地下河公园区域地质背景及喀斯特景观特征进行分析和研究的基础上,系统探讨了都安喀斯特及地苏地下河系、都安天窗群、峰丛峰林等典型喀斯特景观的形成演化过程,认为都安喀斯特正处于地下和地表喀斯特彼此制约,却又相互协调、同步共生的特殊发育时期;揭示了古近纪以来,暂时性地表流水、地表河等各种地表流水与地下河间,历经独立、袭夺、改道、相连等阶段,对应地下与地表喀斯特间,由地表地下各向分散独立成景→地表地下各向单一网络式成景→地表地下统一网络式成景,并逐渐形成彼此对应喀斯特景观的演化序列和过程。其中,地表喀斯特作用,由强→弱,由主角→配角,并从西北侧至东南侧逐渐演化、分异,形成高峰丛深洼地→中峰丛洼地→低峰丛洼地→高峰林谷地→低峰林谷地5种不同且依次过渡的地表喀斯特地貌;地下喀斯特作用,则由弱→强,配角→主角,逐渐形成庞大、复杂的地下河喀斯特地貌——地苏地下河系;地下与地表间,由彼此独立→整体相互制约、协同共生,并形成由500多个天窗组成的天窗群。因此,公园既是全球展现地下河喀斯特景观美景的杰出代表地之一,又是全球地下河喀斯特地貌演化的杰出范例,还是展示地下与地表喀斯间彼此制约,却又协同共生发育的典型参照地。     

南方喀斯特石漠化分区的名称商榷与环境特点

阐明了锥、塔峰等热带喀斯特地貌发育的适宜的气候和地质地貌条件,论述了我国南方喀斯特地区喀斯特地貌空间分布与气候和地质地貌条件的关系。针对现行《石漠化分区》命名存在的科学系统性问题,对石漠化分区的命名系统提出了修改意见:将我国南方喀斯特地区分为锥、塔峰喀斯特地貌区和非锥、塔峰喀斯特地貌区2个区。锥、塔峰喀斯特地貌区,根据喀斯特地貌类型分为浅碟型峰丛洼地,漏斗型峰丛洼地和峰林平原等3个亚区,分别对应原《石漠化分区》的岩溶高原区,峰丛洼地区和峰林平原区。非锥、塔峰喀斯特地貌区,根据区域地貌类型分为高原盆谷,高原峡谷,高原和中低山槽谷,中高山和中低山等5个亚区,分别对应原石漠化分区的岩溶断陷盆地区,岩溶峡谷区,岩溶槽谷区,中高山区和溶丘洼地(槽谷)区。鉴于热带喀斯特地貌区裸露性喀斯特坡地分布广,石漠化严重,特别是漏斗型峰丛洼地亚区裸露性喀斯特坡地面积比例高,是南方喀斯特地区石漠化最为严重的地区,也是集中连片的国家级贫困区,建议南方石漠化治理向黔桂滇接壤的漏斗型峰丛洼地亚区倾斜。     

中国南方喀斯特地貌分区纲要

对热带喀斯特地貌形成的动力学机制和任美锷先生提出的喀斯特地貌演化理论展开讨论,并遵循地貌类型的地带性和非地带性规律,根据地貌形态和成因的相似性,提出我国南方喀斯特地貌分区纲要。根据喀斯特地貌的气候类型,南方喀斯特地区分为:热带喀斯特地貌类型区和非热带喀斯特地貌类型区。根据喀斯特地貌形态组合,热带喀斯特地貌类型区再分为:黔中高原浅碟型峰丛洼地,黔-桂斜坡带漏斗型峰丛洼地和广西峰林平原等3个亚区。根据区域地貌形态,非热带喀斯特地貌类型区再分为:川西、滇西北中高山,滇东高原盆谷,北盘江高原峡谷,黔渝川鄂湘接壤的中低山槽谷,湘中、湘南、鄂东中低山丘陵区等5个亚区。     

典型喀斯特地貌空间配置的洪水资源化机理——以贵州省为例

洪水资源化是解决喀斯特地区水资源严重缺乏的有效途径。文章在贵州省喀斯特地区选取40个流域作为研究样区,利用面向对象技术的监督分类型方法,提取典型喀斯特地貌类型;分析流域样区特征,利用系统聚类法,将其划分为6种流域类型,即是：喀斯特低中山型（Ⅰ）、峰丛谷地型（Ⅱ）、混合型（Ⅲ）、峰林盆地（溶原）型（Ⅳ）、峰丛洼地型（Ⅴ）和峰林地貌型（Ⅵ）;利用相关分析方法,分析不同地貌空间配置对洪水径流特征的影响,探索地貌空间配置对洪水的分配与承载规律,从流域结构角度研究地貌空间配置对洪水资源化的实现。研究表明：1）洪水径流模数、径流系数及其C_v值曲线呈现“双峰型”分布,且分别在峰丛谷地型流域（Ⅱ）和峰丛洼地型流域（Ⅴ）达极大值;2）不同流域类型实现洪水资源利用总量,从大到小排序为：Ⅴ（6.22×10⁸ m³）>Ⅰ（2.88×10⁸ m³）>Ⅵ（1.49×10⁸ m³）>Ⅱ（1.34×10⁸ m³）>Ⅳ（1.25×10⁸ m³）>Ⅲ（0.55×10⁸ m³）;3）除峰丛谷地型（Ⅱ）和混合型（Ⅲ）流域外,所有流域类型的地下洪水资源总量大于地表洪水资源总量。喀斯特流域的洪水资源化,深受喀斯特地表的起伏及其流域侵蚀基准面和溶蚀基准面的控制。     

喀斯特峰林峰丛地貌形态表达研究综述

峰林峰丛是形态最典型、特征最突出的喀斯特地貌,而喀斯特形态研究是喀斯特研究的基础。该文根据国内外相关文献资料,在全面梳理峰林峰丛地貌的概念内涵、形态特征、中西方不同表述的基础上,归纳总结了峰林峰丛地貌形态研究的发展历程。喀斯特峰林峰丛地貌形态研究经历了从定性描述到定量分析,从简单的数理统计、形态量计到分形分析,以及随多源、高分辨率数据的获取而发展起来的基于DEM和GIS空间分析技术进行精确定量分析等几个重要阶段。在分析总结上述峰林峰丛地貌形态研究过程及技术手段的基础上,指出现有的形态定量研究方法中存在的不足之处,对喀斯特峰林峰丛形态研究的前景做出展望,并提出峰林峰丛地貌形态研究的发展方向和亟待解决的关键问题。     

贵州高原北部河流阶地发育与喀斯特地貌演化

贵州高原北部发育平缓丘丛和深切峰丛2种喀斯特地貌组合,保存于喀斯特山间盆地的河流阶地对区域地貌演化具有指示意义。本文根据阶地发育特征和光释光（OSL）测年,分析阶地形成的时代和动力,结合区域地质背景,探讨构造抬升和河流侵蚀对黔北喀斯特地貌演化的驱动作用。结果显示,绥阳盆地T1阶地时代18.8~8.2 ka,T2时代144.4~104.1 ka;旺草盆地T1年龄为5.5 ka,T2年龄为45.1 ka。绥阳盆地阶地以漫滩相沉积物为主,旺草盆地阶地则多切割了白云岩基岩。分析认为,气候条件影响了阶地的沉积过程,但差异性构造抬升应为区域河流阶地差异发育的主要因素。阶地测年显示,旺草盆地的河流平均下切速率明显高于绥阳盆地,表明芙蓉江流域构造抬升和河流下切强度明显高于洋川河。在差异性构造抬升和河流侵蚀综合作用下,北部大娄山区形成了深切的喀斯特峰丛-峡谷地貌,南部乌江中游流域则发育以平坦盆地和宽缓丘丛为主的地貌组合。     

河南渑池仰韶大峡谷“假岩溶”地貌特色景观及成因

针对仰韶大峡谷砂岩峰林地貌与砂岩溶孔等特色景观,通过野外地质调查,室内岩石测试与遥感影像分析,探讨了景区地貌景观的成因机理与演化。研究结果表明:仰韶大峡谷汝阳群石英砂岩岩层产状平缓,岩石坚硬刚性强,但垂直节理极其发育。第三纪地壳整体上升,地下水沿垂直节理侵蚀及重力崩塌作用造就了石英砂岩峰林地貌的基本形态,主要由石柱、峰丛、峰林、石门、天生桥及峡谷、嶂谷等构成。另外,怪洞形成的物质基础是特定的岩性,汝阳群上部北大尖组与白草坪组均夹白云质石英砂岩及砾屑白云岩透镜体,抗蚀能力弱,在强烈的物理风化与化学风化的联合作用下,水土流失形成空洞。     

张家界砂岩峰林景观成因机制

通过实地考察,室内遥感影像分析,得出如下结论：张家界石英砂岩峰林地貌岩层产状平缓,地壳水平上升,流水沿构造破裂面的节理侵蚀及重力崩塌作用造就了石英砂岩峰林地貌的基本形态。地貌形态的物质基础是特定的岩性。石英砂岩峰林地貌主要由方山、台地、峰墙、峰丛、峰林、石门、天生桥及峡谷、嶂谷等构成。其岩石胶结良好,刚性强,节理发育。物理风化很强烈,风化物和土壤十分疏松,内聚力小,抗蚀能力弱。存在着水土流失的潜在地质条件。另外,石英砂岩峰林地貌本身的地貌特点,水文气象要素都促使其山体风化、崩塌,景观消亡。为了保证景区的可持续发展,环境保护意义重大。     

重庆奉节天坑地缝喀斯特地质遗迹及发育演化

小寨天坑、天井峡地缝式喀斯特峡谷位于重庆市奉节县南部深切割峰丛谷地区,发育在一个流域面积280km2,落差1600m的喀斯特水文系统中,与巨大的地下河相连。前者深662m,口径626m,容积119×106m3,是目前世界上规模最大的天坑;后者长6162m,最大深度229m,最小宽度1m,为世界上罕见的地缝式喀斯特峡谷,具有很高的美学观赏价值和科研价值。天坑、地缝的形成条件,需要有连续沉积厚度巨大的碳酸盐岩层和平缓的岩层产状、高强度水动力作用地下河的存在、地表深切和地表地下排水基准面的长期大幅度下降、厚度相当大的包气带、地表与地下喀斯特作用协同等。天坑、地缝主要形成于峡谷期(三峡期),经历了3个演化阶段,即宽缓河流谷地阶段、峡谷及天坑地缝形成阶段和现代河谷持续深切阶段。     

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.     

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.     

Assessment of GIAHS in Shizuoka: The Traditional Tea-grass Integrated System

<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     

ERAHS: A New Platform for the Exchange of Regional Information and Experience on Agricultural Heritage Systems

<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     

PRODUCTIVITY OF AMERICAN PH.D.-GRANTING DEPARTMENTS OF GEOGRAPHY

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)     

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.     

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 .     

Deserts and Aeolian Desertification in China: Book review and some thoughts

Desertification is a global phenomenon that affects about two billion people. It occurs in arid zones where the annual precipitation is below 400 mm, partic- ularly in the marginal areas of the world＇s largest deserts. It is a result of water and wind erosion, over- grazing, global warm-ing, improper soil cultivation, and increased pressure ot population growth, and it causes degradation of soil and natural and agricultural vegetation. The direct result is less food for people and livestock, which influences pop- ulation and animal husbandry fluctuations. Despite ef- forts to combat and reduce desertification, the affected areas are annually increasing.     

BOOK REVIEWS

Book Reviewed in this article: The Rice Economy of Asia . Randolph Barker and Robert W. Herdt with Beth Rose. Using Microcomputers: A Guidebook for Writers, Teachers, and Researchers in the Social Sciences . Blaine A. Erie—the Lake that Survived . Noel M. Burns. Geology and Society . Donald R. Coates. Caves and Karst of Kentucky . Percy H. Dougherty, ed. Altered Harvest: Agriculture, Genetics, and the Fate of the World's Food Supply . Jack Doyle. The Middle East and North Africa, A Political Geography . Alasdair Drysdale and Gerald H. Blake. Clamor at the Gates. The New American Immigration . Nathan Glazer, ed. Development and the Landowner: An analysis of the British experience . Robin Goodchild and Richard Munton. Discovering Landscape in England and Wales . Andrew Goudie and Rita Gardner. The Modern Plantation in the Third World . Edgar Graham and Ingrid Floering. Social Relations and Spatial Structures . Derek Gregory and John Urry, eds. The World Food Problem 1950–1980 . David Grigg. Costa Rica: A Geographical Interpretation in Historical Perspective . Carolyn Hall. The Urbanization of Capital: Studies in the History and Theory of Capitalist Urbanization . David Harvey Consciousness and the Urban Experience: Studies in the History and Theory of Capitalist Urbanization . David Harvey. Reviving Main Street . Deryck Holdsworth, ed. Rural Roads and Poverty Alleviation . John Howe and Peter Richards, eds. Uneven Development in Southern Europe: Studies of Accumulation, Class, Migration and the State . Ray Hudson and Jim Lewis, eds. Karst Geomorphology . J. N. Jennings. The Geomorphology of North-west England . R. H. Johnson, ed. Climate Impact Assessment: Studies of the Interaction of Climate and Society . Robert Kates, Jesse Ausubel, Mimi Berberian, eds. Public Service Provision and Urban Development . Andrew Kirby, Paul Knox, and Steven Pinch, ed. State and Market: The Politics of the Public and the Private . Jan-Erik Lane, ed. Living Cities . Twentieth Century Fund Task Force on Urban Preservation Policies. World Climatic Systems . John G. Lockwood. Urban Ethnicity in the United States. New Immigrants and Old Minorities . Lionel Maldonaldo and Joan Moore, eds. Culture and Conservation: The Human Dimension in Environmental Planning . Jeffrey A. McNeely and David Pitt, eds. The Andean Past. Land, Societies, and Conflicts . Magnus Mörner. Gaia: An Atlas of Planet Management . Norman Myers, ed. Progress in Industrial Geography . Michael Pacione, ed. Progress in Political Geography . Michael Pacione, ed. Rivers and Landscape . Geoff Petts and Ian Foster. Urbanization and Planning in the 3rd World: Spatial Perceptions and Public Participation . Robert B. Potter. One Island, Two Nations? A Political Geographical Analysis of the National Conflict in Ireland . D. G. Pringle. Circulation in Third World Countries . R. Mansell Prothero and Murray Chapman. The Ozarks Outdoors: A Guide for Fishermen, Hunters, and Tourists . Milton D. Rafferty. Suburban Burglary: A Time and a Place for Everything . George Rengert and John Wasilchick. Geomorphology and Soils . K.S. Richards, R.R. Arnett, and S. Ellis, eds. The Homes and Homeless of Post-War Britain . Frederick Shaw. Indochinese Refugees in America . Paul J. Strand and Woodrow Jones, Jr. Wild Horses and Sacred Cows . Richard Symanski. Forever Wild: Environmental Aesthetics and the Adirondack Forest Preserve . Philip G. Terrie. The Regional Economic Impact of Technological Change . A.T. Thwaites and R.P. Oakey, eds. The Good Life . Yi-Fu Tuan.