共查询到20条相似文献，搜索用时 15 毫秒
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PATRICIA NELSON LIMERICK 《Geographical review》1998,88(4):483-491
ABSTRACT. Adopting the persona of the nonacademic, J. B. Jackson was, nonetheless, a major influence on academic scholarship. Expertly and deftly, he played on his understanding of scholarly convention, pushing the boundaries of “legitimate” generalization and assertion. Careful observation of his style reveals eight strategies for testing, mocking, and challenging habits of mind that can unnecessarily constrict scholarly inquiry. From daring in the drawing of conclusions to the wily use of the pronoun “we,” from a refusal to defer to middle-class values to the baiting of environmentalists, Jackson at once had a good time and called much of academic propriety into question. An examination of his “game plan” gives scholars a chance to examine their own habitual practices. 相似文献
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KENNETH D. MADSEN 《Geographical review》2002,92(1):63-72
ABSTRACT. Recent presidents of the Association of American Geographers have made it clear that as a discipline we need to do more to reach outside the confines of academia. Since 1985, the J. B. Jackson Award has recognized individuals whose books provide examples of how to share professional geographical knowledge with the educated lay public. Through correspondence with these individuals, recommendations for improving geographers' outreach are presented. 相似文献
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应用修订的康拉德公式计算美国中东部温带地区日均温稳定≥10℃积温,并同我国相应纬度地区作了对比。这一对比揭示出我国东部温带并非世界同纬度地带夏半年热量资源最丰富。 相似文献
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INES M. MIYARES 《Geographical review》2004,94(4):462-483
ABSTRACT. When Edward MacDougall of the Queensboro Realty Company originally envisioned and developed Jackson Heights in Queens, New York in the early twentieth century, he intended it to be an exclusive suburban community for white, nonimmigrant Protestants within a close commute of Midtown Manhattan. He could not have anticipated the 1929 stock market crash, the subsequent real estate market collapse, or the change in immigration policies and patterns after the 19505. This case study examines how housing and public transportation infrastructure intended to prevent ethnic diversity laid the foundation for one of the most diverse middle‐class immigrant neighborhoods in the United States. 相似文献
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DEREK H. ALDERMAN 《Geographical review》2004,94(2):157-177
ABSTRACT. The history of kudzu illustrates the fluidity with which people can redefine their cultural relationship with exotic species. Although much of American society views the fast‐growing Asian vine as a pest, this has not always been the case. During the first half of the twentieth century, individual entrepreneurs and government officials touted kudzu as a “miracle vine” and carried out massive planting campaigns across the southeastern United States. This study traces the changing place of kudzu within southern society from its introduction in the late 1800s to the present. Specific attention is devoted to the role that the gentleman farmer, author, and radio personality Channing Cope played in popularizing the cultivation of kudzu. Cope's promotional activities are interpreted as environmental claims making. Analysis focuses on the metaphors he used in persuading the public of kudzu's supposed benefits. Conducting such an examination advances our general understanding of the historical geography of exotics in America and the importance of human agency and cultural representation in the spread of non‐native organisms. 相似文献
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HELEN LEFKOWITZ HOROWITZ 《Geographical review》1998,88(4):465-473
ABSTRACT. Understanding what the American landscape meant to J. B. Jackson requires an exploration of his background, education, and antagonism to the International Style. No full critique of modernism appears in Jackson's mature published work. However, knowledge that the first issues of Landscape magazine in 1951 and 1952 were the work of a single author leads to discovery of Jackson's pseudonyms, especially H. G. West, P. G. Anson, G. A. Feather, and A. W. Conway. This article examines Jackson's pseudonymous writings and links them to his well-known essays on the landscape: “The Westward-Moving House,” “Other-Directed Houses,” and “Southeast to Turkey.” 相似文献
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竺可桢是中国物候学研究的开创者和领导者,他研究物候学可分为三个时期:(1)研究古今物候学,个人开始物候观测时期(1921—1931年);(2)领导组织中国物候观测时期(1931—1940年);(3)领导建立物候观测网,开展中国物候学研究,并完成北京24年物候观测记录时期(1950—1973年)。本文详述了他对物候学的贡献。 相似文献
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黄河中下游水沙变化趋势 总被引：2，自引：0，他引：2
本文论述由于黄河上游清水区水资源的优先开发,中上游地区工农业用水的增长,而黄河中游地区的水土保持和支流治理的减沙作用不甚明显,龙羊峡水库投入运用后,汛期进入河口镇的水量大幅度减少,使汛期进入黄河下游的基流减小含沙量增加,高含沙洪水出现的机会增多.面临水少沙多的不利情况,应加强宽浅河道的改造及利用窄深河道输送高含沙水流的研究. 相似文献
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用圆周方位来表示水文特征年内出现的日期,而用径向距离来表示相应的特征值,计算部分圆环面积内的密度值,绘制等密线,即得水文特征等密图。该图直观地反映了水文特征年内出现的优势中心及其相应的优势期和优势值,优势度则是它们出现的可能性大小。优势期和优势值是水文特征年内分配的一个重要特点,本文利用等密图的表示方法,揭示和分析了这一客观存在的水文现象。 相似文献
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新疆生态环境现状综合评价研究 总被引：25，自引：8，他引：25
在广泛收集数据和实地调查的基础上，综合前人工作的成果，首次对全疆生态环境质量进行评价，以县（市）域为评价单元，采用综合指数法，进行排序，并通过专家咨询和专业判断，对全疆生态环境进行分级，由此得出全疆生态质量及其等级划分状况。 相似文献
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国家经济地图集的设计和制图可视化的方法技术 总被引：4，自引：2，他引：2
国家经济地图集是第一部全面,系统反映我国当前经济社会发展面貌和空间分布的大型科学参考地图集,它的编制是一项重大的制图系统工程,本文简要地阐述了图集编制研究的主要方面,包括从分析我国经济社会发展和现状出发,确定图集设计总体目标,为科学和形象地表达我国经济社会特征,而采用的可视化方法技术,以及智能化的计算机制图系统在图集制中的应用。 相似文献
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甘青地区中晚全新世植被变化与人类活动 总被引：5，自引：5，他引：5
史前时期人类对环境的影响是近几年来国际研究的热点。在甘青地区，全新世的孢粉资料比较多。但在中晚全新世，该区人类对环境的影响作用及其程度仍不清楚，许多孢粉分析资料中并没有充分考虑人类活动的影响。本文选取孢粉分辨率较高、代表性较好的青海湖、兰州、秦安大地湾三地的资料，着重研究了其中乔木成分的变化。分析发现，孢粉组合中乔木成分的变化与气候变化的趋势并不一致。通过对考古及历史资料的分析，笔者认为，该区的植被很早就受到人类活动的影响。自全新世中期，本区植被中的乔木成分波动下降。5000－3000a BP期间，史前农业对植被的影响较大。3000－2000a BP期间，植被略有恢复。2000a BP以后，人为影响加剧，植被中乔木成分迅速下降。研究者认为，依赖孢粉资料重建中晚全新世的气候变化历史应当慎重。 相似文献
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天山南麓台兰河口丘状堆积物成因及时代的新见解 总被引：2，自引：0，他引：2
研究表明台兰河口的丘状堆积体属古泥石流成因，物质组成显示泥石流形成于中低山带的峡谷段，泥石流可能由谷坡堆积物（主要为钙质胶结的冰碛）滑塌阻塞河床发展而成。其形成时代晚于末次冰期，应在全新世中期或更晚一些。 相似文献
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《Geographical review》2003,93(2):267-282
Book reviewed in this article: AMERICAN EMPIRE: Roosevelt's Geographer and the Prelude to Globalization. By Neil Smith . THE NEW IMPERIALISM. By David Harvey . DECOLONIZING NATURE: Strategies for Conservation in a Post‐Colonial Era. Edited by William M. Adams and Martin Mulligan . CONTESTED NATURE: Promoting International Biodiversity with Social Justice in the Twenty‐First Century. Edited by Steven R. Brechin , Peter R. Wilshusen , Crystal L. Fortwangler , and Patrick C. West . IN THE TIME OF TREES AND SORROWS: Nature, Power, and Memory in Rajasthan. By Ann Grodzins Gold and Bhoju Ram Gujar . THE FARM AS NATURAL HABITAT: Reconnecting Food Systems with Ecosystems. Edited by Dana L. Jackson and Laura L. Jackson . 相似文献
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全球化使品牌与地方之间的联系日益密切。西方国家的快时尚品牌实行全球同价、全球同款和标准化的经营模式,被认为具有消极的品牌形象,然而却在异源文化背景的中国实现品牌升级。以ZARA为例,从时间和空间2个维度出发,描述其品牌空间发展史,分析品牌源地、空间发展、店铺选址等参与快时尚品牌的文化生产过程。结论如下：1）快时尚品牌与全球时尚城市建立积极联系,将全球时尚城市想象写入品牌发展史中,品牌空间发展史比品牌源地对品牌形象的影响更大;2）ZARA与全球时尚城市互动成功塑造全球时尚品牌形象,“全球”品牌头衔对于中国本土向往全球化的消费者来说具有很强的吸引力,对于其跨国升级有积极影响;3）ZARA在中国大陆的品牌空间发展依然延续“下沉式”模式,利用上海、北京、深圳、广州等地在全国时尚产业中的引领地位影响二级城市消费者的品牌选择,实现其跨国品牌升级;4）专卖店选址于高端消费街区,在跨国过程中重新定位于中高端消费群体,使得ZARA实现跨国品牌升级。 相似文献
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储博程 《云南地理环境研究》2013,(6):48-52
昆明市政府对松华坝水源保护区实施了"全面禁牧、禁渔业、禁花限菜、限制规模化养殖"等环境保护政策,加强了对城市水源地的保护力度,然而政策的实施将对水源地经济的发展有一定的限制作用,因此在政策限制的情况下进行水源地农业发展模式的研究,将充分考虑水源保护区政策、资源、市场、技术、农户意愿五大因素,采用实地调查、对比分析法、投入产出比等方法,提出了核桃林未成林间种洋芋模式,成林后林下种植金银花的连续发展模式和"以有机野生菌为精品,无公害金针菇种植为主"市场差异化发展的模式。 相似文献
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ILHAN KAYA 《Geographical review》2005,95(3):425-440
ABSTRACT. Until recently, Muslim Americans have often been overlooked in studies on immigration, ethnicity, and race. Their loyalty to America and their integration into the larger culture have frequently been questioned by the media, and academia's interest has mostly been limited to establishing links between Muslims, fundamentalism, and terrorism. Muslim American experiences‐their social, political, and cultural institutions and spaces in the United States‐have drawn little attention from geographers. But stereotypes play an important role in intergroup relations and public‐policy making. Thus, it is important to understand Muslim ethnic‐group experiences of immigration and their place‐making activities in the United States. Based on research in the greater New York metropolitan area, this study explores one facet of the Muslim experience in the United States by investigating Turkish American identity‐construction spaces and their role in the preservation and reformation of Turkish American identity; that is, how these spaces emphasize and shape particular identities and discourage others. 相似文献