共查询到20条相似文献，搜索用时 233 毫秒
1.
Almost half a century has passed since Jean Gottmann coined the term “Megalopolis” in reference to the almost continuously urbanized stretch of land spanning the East Coast of the United States from southern New Hampshire to northern Virginia. Because a disproportionate concentration of population resided in this Megalopolis, the northeastern core enjoyed an economic and cultural supremacy, and he termed the Megalopolis “The Main Street of the Nation.” By the later 1960s and 1970s, however, population migration patterns began to reflect the influence exerted by the emergence of a second national core centered on the large metropolitan areas along the Pacific Coast, especially those of the Los Angeles and Bay Area conurbations in California. Although of different character, this burgeoning concentration of population, economic activity, and cultural influence may reflect the development of a West Coast Megalopolis that could soon rival the original Megalopolis of the Northeastern Corridor. Today, the U.S. population distribution is largely a bicoastal one. This article documents the emergence of this bicoastal population distribution. Using historical census data and GIS technology, we present a number of novel ways to graphically portray and examine this population redistribution phenomenon. The United States is not unique in witnessing an increasing share of its inhabitants clustering in coastal zones. Current critical policy concerns about the worldwide vulnerability of coastal populations have focused the need for better coastal population estimates and better mapping methods for portraying population redistribution trends. 相似文献
2.
Daniel R. Vining Joseph B. Dobronyi Mark A. Otness James E. Schwinn 《The Professional geographer》1982,34(3):270-278
Gottmann in his classic Megalopolis attributes the dominance of the Northeast to its function as the hinge region of the United States. In this paper, we show, via statistics on maritime trade and interregional freight traffic by rail, that Megalopolis is no longer the dominant “hinge” region. We present evidence that the Gulf region may be supplanting it in this function. Finally, we speculate on some of the reasons for the Gulf's rather sudden assumption of this role and its implications for the economic geography of the U.S. 相似文献
3.
Richard Morrill 《The Professional geographer》2006,58(2):155-160
Browning's classic 1974 map of Megalopolis, covering the growth of Megalopolis from 1950 to 1970, is updated through 2000. The color map depicts the extent and expansion of Megalopolis for three time periods, 1950–1970, 1970–1990, and 1990–2000. Discussion relates the growth of Megalopolis to social and economic forces influencing urbanization in the United States in the latter half of the twentieth century. 相似文献
4.
5.
Coloradoapos;s 1992 vote on Amendment Two was the first meaningful, broad-based test of attitudes on gay rights within the United States. Analysis of voting results distinguishes places of tolerance from places of rejection. Social differences separating these places reflect typical contrasts between “traditionalists” and “modernizers” found in cultural conflicts at the national level. Places showing support for gay rights are recreational-based mountain communities, urban areas, and university communities. Those showing opposition are rural, agriculturally based communities. Suburban areas produced a more ambivalent vote. 相似文献
6.
2000年以来,随着中国外向型经济的快速发展,以及中美经贸合作伙伴关系的不断深化,中国 对美国直接投资规模持续扩大,至2012年,美国已成为接收中国对外直接投资最大的国家。利用地理集中指数和空间自相关,以美国50个州和哥伦比亚特区为研究单元,分析2000-2014年中国对美国直接投资的时空演变过程及发展趋势。结果表明：①2000年以来COFDI在美国地域分布的不平衡程度有所下降,整体逐渐趋向均衡;②美国吸收COFDI的区域差异较大,南部地区总量领先但增速较慢,东北部、中西部、西部地区实力平均但增速较快,整体差距逐渐缩小;③在空间分布上,呈现由沿海向内陆,由南部向中西部扩散的趋势,表现为“以点带线,多点成面”的时空演化过程;④总体来看,COFDI的空间分布存在较弱的空间自相关性,集聚程度尚不显著,呈现“集聚--随机分布--离散”的空间形态,局部区域形成“冷、热区”的分化。 相似文献
7.
美国墨西哥湾岸地区石油生产综合体的形成 总被引：1，自引：0，他引：1
墨西哥湾岸是美国石油工业的核心地区。本文分析了本地区在有利的区域条件和社会、经济、技术发展要求的共同作用下,石油生产地域综合体的形成过程。分析中强调了主导部门在区域经济开发和区域经济地理研究中的意义。 相似文献
8.
Not only tourism: unravelling suburbanization,second-home expansion and “rural” sprawl in Catalonia,Spain 总被引：1，自引：0，他引：1
This study illustrates multifaceted urbanization patterns and processes in a coastal region of Catalonia (northeastern Spain) as a paradigmatic example of the socio-economic transformations typically observed in the northern Mediterranean basin since World War II. By focusing on the expanding tourism industry, second-home expansion, infrastructural development and sprawl around traditional rural centres, the paper assesses the effects of long-term economic, demographic, social and cultural transformations on rural landscapes in Alt Empordà, the so-called “Catalan Tuscany”. The stratification of distinct urbanization waves and the underlying socio-economic processes observed in Alt Empordà reflect population dynamics and settlement morphologies typical of rural districts moving rapidly towards a suburban spatial organization. Recent urban dynamics in Mediterranean rural systems deserve further investigation in order to shed light on latent suburbanization processes involving marginal European regions. 相似文献
9.
《The Professional geographer》2013,65(4):454-456
A factor analysis of the 1978 Massachusetts election is undertaken to investigate whether the alleged decline of political parties in the United States can be distinguished at the state scale. Four factors are identified, two of which relate to the voting patterns of state-wide candidates. The main factor is easily seen to represent a “party voting”pattern and the fourth factor suggests a nonparty pattern of support associated with the Democratic candidate for governor, Edward King. It is suggested that this separation of the voting pattern for Democratic candidates may possibly reflect party decomposition in Massachusetts. 相似文献
10.
《The Professional geographer》2013,65(2):148-152
This paper analyzes the migration of Puerto Rican-born women from the United States to Puerto Rico using longitudinal data. We hypothesize that sojourn length in the United States is a function of both structural (macro-level economic and cultural factors) and behavioral (micro-level life-cycle experiences and personal attributes) variables. We test these hypotheses by estimating a proportional hazards model. The parameter estimates of this model indicate that sojourn length in the United States, and thus the decision to return to Puerto Rico, is a function of wage trends and community characteristics on the mainland plus a number of individual attributes that include education, marriage, and childbirth. 相似文献
11.
Jesse Abrams Heidi Huber-Stearns Hannah Gosnell Anna Santo Stacie Duffey Cassandra Moseley 《社会与自然资源》2020,33(4):504-523
AbstractNational Forests in the United States have undergone a spatially and temporally uneven governance transition in response to social and economic pressures and contemporary policy changes, with many national forest units moving from a wholly government-led “dominant federal” model to a more collaborative “social forestry” model in which nonfederal actors have greater influence and authority. Here we report on an effort to develop a suite of indicators designed to capture some of the most tangible elements of a transition from dominant federal to social forestry modes of governance. We pilot test these data on the Willamette National Forest using data from a variety of sources internal and external to the USDA Forest Service. We assess the suitability of these indicators for tracking governance transitions and discuss their applicability to other national forest units nationwide. 相似文献
12.
《The Journal of geography》2012,111(3):87-101
Abstract Between 1990 and 2000 the U.S. Hispanic population increased by 14 million, which is the largest decadal population rise in United States history. This increase was not spread evenly throughout the United States, nor was it isolated to locations that already had large Hispanic populations. On the contrary, areas that previously had a relatively small Hispanic population experienced large percentage increases. In this article the regional variability in Hispanic population growth is explored, along with an emphasis on the economic pull factors driving those demographic changes. This analysis illustrates how restructuring in the meatpacking industry, and the associated economic impacts, have created a dependence on a low wage, illegal labor force that has shaped the recent demographic trend in the South and Midwest. 相似文献
13.
知识产权贸易下的全球地缘科技格局及其演化 总被引：1，自引：3，他引：1
中国崛起,关键在于科技崛起。在当前技术针对与封锁的国际环境中,探讨建构以中国为核心的全球创新网络和科学制定中国未来科技战略是当前创新地理学和地缘政治学交叉之下研究的重点课题,而明晰全球地缘科技格局及其演变过程则是基础所在。本文基于2001—2015年全球国家（地区）间的知识产权进出口数据,在研究全球知识产权贸易格局和网络结构的基础上,探讨了全球地缘科技体系的时空演化特征,得出以下结论：① 全球知识产权贸易网络两极分化显著,是一典型的小世界网络,以美国为核心的金字塔结构不断夯实;② 基于敏感性和脆弱性模型阐释的全球知识产权贸易的非对称依赖性进一步验证了美国是全球地缘科技格局的核心,且其核心地位不断巩固和加强。 相似文献
14.
Ryanne Pilgeram 《社会与自然资源》2019,32(8):911-927
Using in-depth interviews with women engaged in sustainable farming in the western United States, this project explores an unanticipated finding: migration from an urban area to rural “Prairie County” was necessary for these farmers to secure farm land and sustain their farming operations. This article interrogates the role of migration in women’s access to farmland as both an economic and cultural phenomenon. My findings highlight the necessity of migration for women’s participation in sustainable farming and suggest that women’s success in sustainable farming may align with the processes of rural gentrification, by which cultural and economic in-migrants amplify their social privilege and transform the values and economy of rural communities. This project, then, situates gender as a key structure to understanding both the classed dynamics of sustainable agriculture and rural gentrification. 相似文献
15.
MICHAEL P. CONZEN 《Geographical review》2006,96(2):183-211
ABSTRACT. Wilbur Zelinsky's classic 1977 account of the Pennsylvania town as a cultural place type–the urban component of the nationally influential Pennsylvanian culture region–acknowledged that it was not exported intact across the successive western frontiers of the United States. But, aside from Edward Price's specialized study of courthouse squares, we know little that is systematic about how town‐planning ideas diffused across the continent. This investigation offers evidence from the Willamette Valley in Oregon of the eventual variety and geographical distribution of town‐platting conventions that developed in this Pacific Coast “destination’ setting and the possible provenance in the Ohio Valley of certain early Oregonian town‐plan features. The evidence raises questions about the resilience of town‐planning conventions in light of the distance carried, cultural time lags, and changing ideas about best practice and local suitability. 相似文献
16.
《The Professional geographer》2013,65(3):388-399
This paper traces the emergence of coastal management in the late twentieth century and assesses the social and spatial implications of the new Integrated Coastal Management (ICM) philosophy that guides national regulatory programs worldwide. A review of the epistemology of ICM reveals its link to the United Nations marine regulatory regime (the Law of the Sea) and the sustainable development paradigm embraced at the 1992 United Nations Conference on Environment and Development. I suggest that the resulting regulatory regime facilitates the opening of coastal zones worldwide to aggressive state and global capital investment. By promoting the overhaul of existing social and spatial organization in coastal zones and by asserting the primacy of resource access for modern economic interests, ICM may introduce more rather than less social conflict and ecological degradation. To illustrate this dynamic, I examine the case of coral reef management in general, and in the context of the Sri Lankan ICM program. 相似文献
17.
William H. Langer 《Natural Resources Research》1995,4(4):303-309
Crushed stone and sand and gravel are the two main sources of natural aggregate, and together comprise approximately half the volume and tonnage of mined material in the United States. Natural aggregate is a bulky, heavy material without special or unique properties, and it is commonly used near its source of production to minimize haulage cost. However, remoteness is no longer an absolute disqualifier for the production of aggregate. Today interstate aggregate routinely is shipped hundreds of kilometers by rail and barge. In addition, during 1992, the United States imported 1,317,000 metric tons of aggregate from Canada and 1,531,000 metric tons from Mexico. A number of ports on the Atlantic Coast and Gulf Coast of the United States receive imports of crushed stone from foreign sources for transport to various parts of the eastern United States. These areas either lack adequate supplies of aggregate or are augmenting their supplies because they have difficulties meeting current demand. These difficulties may include poor stone quality, environmental permitting problems, or transportation. Certain societal and geologic conditions of New York City and Philadelphia along the Atlantic Coast, and Tampa and New Orleans along the Gulf Coast, are discussed to demonstrate the different combinations of issues that contribute to the economic viability of importing crushed stone. 相似文献
18.
Kevin E. McHugh 《The Professional geographer》1989,41(4):429-439
The US Hispanic population has grown rapidly over the last two decades and remains geographically concentrated in nine states. Redistribution away from core states through internal migration has been largely offset by heavy immigration to traditional areas of Hispanic concentration. Geographical patterns of Hispanic miration show broad similarities to overall patterns of population redistribution in the United States. New York and California serve as key spatial redistributors or pivots in the Hispanic migration system. 相似文献
19.
Changing population density is often ignored in studies of population growth and population transfer in the United States. We show that there is a complex relationship between patterns of population growth and density increase by state. The largest gains in density are in the states of the northeastern megalopolis, California, and Florida. Analysis of the 150 counties with the greatest increases in density between 1980 and 1990 shows that they are well distributed across the United States including the larger metropolitan areas of the “Rustbelt.” In general, the most densely populated states and places are becoming more densely populated, a concept we refer to as densification. 相似文献
20.
基于“本体-认识-方法”论的逻辑范式,从关系范围和主驱力两个视角重新界定了滨海旅游的基本内涵,认为滨海旅游与海岸旅游和海洋旅游具有交叉关系,是在一定的社会经济条件下,以沿海岸线陆域和海岸为依托,以满足人们精神和物质需求以及不同经济主体利益为目的而进行的海陆观光、休闲和度假等旅游活动所产生的现象和关系的总和;结合国内外发展实践认为滨海旅游应有独特的滨海生态与人文资源、较长的可游憩时间、优越的区位条件和交通环境、较好的海陆经济产业发展、较高的开发技术支撑和强烈的海洋意识培养等六方面特性;基于内涵界定并遵照滨海旅游发展模式构建的市场经济驱动、不同主体参与、地方特色强化和游憩环境保护4项原则,从管理经营、空间布局和要素开发等3个关键领域系统地提出了滨海旅游发展的政府主导与企业驱动相结合的管理经营模式、“集聚-联动”驱动的空间布局模式、RMIP要素开发模式,以期为沿海城区滨海旅游地建设和完善提供了理论和实践的双重借鉴。 相似文献