BOOK REVIEWS     

《The Professional geographer》1985,37(4):495-522

Book Reviewed in this article: Portable Utopia: Glasgow and the United States 1820–1920. Bernard Aspinwall. Studies in Russian Historical Geography. James H. Bater and R. A. French, eds. Water and Sanitation: Economic and Sociological Perspectives. Peter G. Bourne, ed. Green Politics. Fritjof Capra and Charlene Spretnak. The Southern Cone: Realities of the Authoritarian State. César N. Caviedes. Women in Third World Development. Sue Ellen Charlton. Land Management: New Directions. David Chiddick and Alan Millington, eds. Geography and Ethnic Pluralism. Colin Clarke, David Ley, Ceri Peach, eds. Geomorphological Hazards in Los Angeles. R. U. Cooke. Regional Impacts of United States-Mexico Economic Relations. Alfonso Corona and Lay James Gibson. eds. Patterns of Jobs and Geographic Mobility. Torvald Gerger. Cities and Sickness: Health Care in Urban America. Ann Lennarson Greer and Scott Greer, eds. Neighborhoods: Their Place in Urban Life. Howard W. Hallman. Development and the Rural-Urban Divide. John Harriss and Mick Moore, eds. Patterns of Undocumented Migration: Mexico and the United States. Richard C. Jones, ed. Central Place Theory. Leslie J. King. The Geography of Western Europe: A Socio-economic Survey. Paul L. Knox. Regions and Resources: Strategies for Development. David T. Krisge, Daniel A. Seiver, Oliver S. Goldsmith and Michael J. Scott. Geography of Crowding and Human Response. A Study of Ahmedabad City. K. M. Kulkarni. Haciendo Pueblo. The Development of a Guadalajaran Suburb. Kathleen Logan. The Imperial Lion: Human Dimensions of Wildlife Management in Central Africa. Stewart A. Marks. Water in the Hispanic Southwest: A Social and Legal History, 1550–1850. Michael C. Meyer. Imlil: A Moroccan Mountain Community in Change. James A. Miller. Tourism in Canada: Selected Issues and Options. Peter E. Murphy, ed. David Harvey's Geography. John L. Paterson. Raster Scanning, Processing and Plotting of Cartographic Documents. Donna J. Peuquet and A. Raymond Boyle. The USSR and the Muslim World: Issues in Domestic and Foreign Policy. Yaacov Ro'i, ed. Environmental Perception and Behavior: An Inventory and Prospect. Thomas F. Saarinen, David Seamon, and James L. Sell. Incised channels, Morphology, Dynamics, and Control. Stanley A. Schumm, Michael D. Harvey, and Chester C. Watson. The Gap Between Rich and Poor: Contending Perspectives on the Political Economy of Development. Mitchell A. Seligson, ed. Twentieth-Century Richmond. Planning, Politics and Race. Christopher Silver. Land Conservation and Development: Examples of Land-Use Planning Projects and Programs. F. R. Steiner and H. N. van Lier, eds. Biogeography: Recent Advances and Future Directions. J. A. Taylor, ed. Late Quaternary Environments of the Soviet Union. A. A. Velichko, ed. H. E. Wright, Jr. and C. W. Barnosky, eds.  相似文献   

The Gulf of California: Review of ecosystem status and sustainability challenges     

Salvador E. Lluch-Cota  Eugenio A. Aragón-Noriega  David Aurioles-Gamboa  Richard C. Brusca  Roberto Cortés-Altamirano  Alfonso Esquivel-Herrera  Michel E. Hendrickx  Hugo Herrera-Cervantes  Miguel Lavín  Daniel B. Lluch-Cota  Silvio G. Marinone  Sofia Ortega-García  Alejandro Parés-Sierra  Mauricio Ramírez-Rodríguez  Richard A. Schwartzlose  Arturo P. Sierra-Beltrán 《Progress in Oceanography》2007,73(1):1-26

The Gulf of California is unique because of its geographical location and conformation. It hosts diverse ecosystems and important fisheries that support industry and provide livelihood to coastal settlements. It is also the site of interests and problems, and an intense interaction among managers, producers, and conservationists. In this report, we scrutinize the abiotic (hydrography, climate, ocean circulation, and chemistry) and biotic (phyto- and zooplankton, fish, invertebrates, marine mammals, birds, and turtles) components of the marine ecosystem, and some particular aspects of climate variability, endemisms, harmful algal blooms, oxygen minimum layer, and pollution. We also review the current conditions and conflicts around the main fisheries (shrimp, small and large pelagic fishes, squid, artisanal and sportfishing), the most important human activity in the Gulf of California. We cover some aspects of management and conservation of fisheries, especially the claimed overexploitation of fish resources and the ecosystems, and review proposals for creating networks of marine protected areas. We conclude by identifying main needs for information and research, particularly the integration of data bases, the implementation of models and paleoreconstructions, establishment of monitoring programs, and the evaluation of fishing impacts and management actions.  相似文献   

Second sea-entering approach of Changjiang River: Tonglü Canal-planning of control dimensions, analysis of erosion and siltation and selection of outlet     

Lu Wujiang  Jin Jianxin 《海洋学报(英文版)》1995,14(1):113-125

Assume that the Tonglu Canal would be widened and deepened in which a water lock is constructed at the river side, and made open to the sea side.The canal''s planned control dimensions are determined, and the erosion and siltation characteristics along the river (totally 81.8 km) are analyzed by the numerical calculation of one-dimensional unsteady flow and the relative standards.According to the data of the evolution, hydrology and sediment in the Xiaomiaohong Waterway, it is found reasonable to select the channel near the Xingang Gate as the second sea-entering approach.This paper is helpful in planning and designing the approach.  相似文献   

AUV Local Path Planning Based on Acoustic Image Processing     

李晔常文田  姜大鹏张铁栋 苏玉民 《中国海洋工程》2006,20(4):645-656

The forward-looking image sonar is a necessary vision device for Autonomous Underwater Vehicles （AUV）. Based on the acoustic image received from forward-looking image sonar, AUV local path is planned. When the environment model is made to adapt to local path planning, an iterative algorithm of binary conversion is used for image segmentation. Raw data of the acoustic image, which were received from serial port, are processed. By the use of ＂Mathematic Morphology＂ to filter noise, a mathematic model of environment for local path planning is established after coordinate transformation. The optimal path is searched by the distant transmission （Dt） algorithm. Simulation is conducted for the analysis of the algorithm. Experiment on the sea proves it reliable.  相似文献   

一种个性化游览线路实时生成方法     

庄晓东  王海银  胡振彪  宗恒康  杜建丽 《测绘科学》2017,42(2)

针对目前众多旅游线路规划方法中存在的规划目标单一、非实时计算等问题,该文提出了一种用户自定义路线的实时生成算法。此算法将线路规划问题转化为基于无向图的GIS网络分析问题。首先,结合用户需求,将游览兴趣点的选取问题转化为0-1规划问题,借助贪心策略,确定最佳游览兴趣点集;其次,结合基础地理底图矢量数据,利用Dijkstra算法求解包含最佳游览兴趣点和路网节点间的最短路径,以此为约束,实施模拟退火算法;最后,优化兴趣点间的最佳游览次序,实现整体游览路径的规划。该算法已应用于2014年青岛世界园艺博览会,可根据用户自定义的游园参数,实时且高效地生成个性化的游园线路。  相似文献   

浅析地理国情监测“四进”制度建设     

桂德竹  张月 《测绘与空间地理信息》2017,(1)

完善的制度与成熟的业务体系是地理国情监测常态化开展的两个必备条件,为此,推进地理国情监测"进法律""进规划""进预算""进职责",建立常态化监测的保障机制十分必要。本文总结了地理国情监测"四进"建设发展现状,探讨分析了目前存在的不足与问题,提出相关建议,以促进常态化地理国情监测顺利开展。  相似文献   

贵港市规划项目选址辅助系统设计与实现     

李开富  丘小春  徐军 《测绘与空间地理信息》2017,(3)

根据贵港市对城市规划管理的实际需求,利用数字贵港地理空间框架提供的基础地理信息数据和空间信息技术,建设贵港市规划项目选址辅助系统,笔者在完成多个数字城市地理空间框架建设示范应用系统建设的基础上,对贵港市规划项目选址辅助系统建设进行了探讨与分析,可为正在建设或将要开始建设相关信息系统的单位部门提供有益参考。  相似文献   

基于市县“十三五”基础测绘规划的编制工作研究     

李国华  张月珍  王寿利  董传胜  祝明然 《测绘与空间地理信息》2017,40(9)

市县基础测绘是国家、省基础测绘工作的重要组成部分,是对国家、省级基础测绘规划的衔接和延续。按照我国的基础测绘分级管理要求,市县测绘行政主管部门应依据本规划会同其他同级政府部门编制本级行政区域的"十三五"基础测绘规划。基础测绘规划编制隶属政府专项规划,不同于专业技术设计,审批后需要对外公开发布,所以在语言概括、章节结构和思想表达上有其特殊性。结合笔者编制多个市、县、区的"十三五"基础测绘规划经验,参考其他专题的规划编制工作,从市县基础测绘规划编制的框架结构、规划内容等开始推进,并重点对市县基础测绘规划编制的发展基础、发展趋势、需求分析、指导思想和发展目标、主要任务和保障措施等章节进行了编制研究。本文总结了在编制市县"十三五"基础测绘规划时的一般步骤、编制重点和注意事项,为编制此类规划提供了有益借鉴。  相似文献   

顾及路网车程的医疗服务能力分析——以武汉市为例     

胡欣然  熊伟  任福  毛炎  王功存 《测绘与空间地理信息》2017,40(11)

针对医疗资源分布现状问题,通过量化分析,本文对武汉市中心城区的医疗服务能力进行评估,并结合现有社区的划分,以两步移动搜索算法为基础,引入路网车程对评估模型进行改进。根据实验结果,科学地评价城市医疗资源布局,并为医院选址规划提供合理建议。  相似文献   

地质灾害应急中无人机运输与飞行路径规划     

邹蒲  邓吉秋  刘立  欧阳芳 《测绘与空间地理信息》2017,(10):15-17,20

描述了无人机在地质灾害应急事件中的应用及其特点,介绍了地质灾害应急调查事件中无人机运输与无人机飞行路径规划的必要性,并在此基础上简单阐述了对无人机运输路径的规划规则及其规划算法,以及无人机飞行路径的规划流程和约束条件等内容。  相似文献