首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
The traditional use of land for food, fuel and wood created cultural landscapes, which are threatened across Europe. The factors which contributed to their endangerment need to be identified to achieve effective preservation of such landscapes. The aim of our study was to identify landscapes with historical persistence in a GIS-based comparative analysis of historical and contemporary maps and the most prominent causes of the past landscape changes, based on stakeholders' perspective. We considered a case study in Romania's Carpathians. Three major land cover types were extracted from maps dating from 1912, 1980 and 2009: built-up, pastures and forests. The historical persistence of all land cover types was poor (<20%) and profound changes were quantitatively confirmed. Large, compact patches of unchanged forests were located in the neighbourhood of a national park. The persistent pastures were situated close to human settlements, and their preservation can be related to local traditional agro-silvo-pastoral management. Although the built-up area has increased over time, the corresponding surfaces are small and consist of scattered patches located around historical monuments. Semi-structured interviews were conducted to investigate stakeholders' perspective. Using cluster analysis five prominent causes of past landscape changes are identified: 'increasing tourism', 'land tenure and social changes', 'land-use intensification', 'post-communist transition', and 'foreign investments'. We join the results of the GIS analysis with those from stakeholders' perspective to gain more insights into the landscape changes. This research offers important information that could be used for the further planning of these valuable cultural landscapes in order to avoid potential conflicts and degradation.  相似文献   

2.
北京市居住用地特征价格的空间分异特征   总被引:2,自引:0,他引:2  
余建辉  张文忠  董冠鹏 《地理研究》2013,32(6):1113-1120
基于2004-2009年北京市居住用地出让地块微观交易数据,利用特征价格模型,研究了地块所在区域的社会属性特征对地价的影响以及地块特征价格的空间分异特征。研究显示:①居住用地价格存在显著的空间依赖效应,轨道交通和公园绿地便利性及合理的土地混合利用能够显著提升地价。②人口密度、租用公共住房比例和居住用地开发强度等地块所属社会经济属性对价格影响显著。③居住用地的空间依赖效应、周围商业办公用地溢出效应、轨道交通和公园便利性的特征价格随着就业可达性、教育状况、租用公共住房比例、犯罪率和居住用地出让比例等地块所属社会经济属性特征的变化,存在较大的分异。  相似文献   

3.
Integrated studies of physical geography in China: Review and prospects   总被引:4,自引:0,他引:4  
Modern physical geography in China grew from Chinese traditional geography and has been profoundly influenced by the geographical disciplines of Euro-America and Russia. Since the 1950s, integrated studies of physical geography in China have made remarkable progress in the fields of comprehensive physical geographical regionalization, land studies, landscape ecology, and land surface geographical processes. During the past few decades, under the background of global change and rapid socio-economic transformation, a series of environmental and resources problems have boomed in China. To solve these problems and promote the development of integrated studies of physical geography, the following issues were proposed as research priorities: (1) coupling of land surface patterns and processes; (2) integrated research on regional responses and adaptation to global change; (3) analysis of human dimensions of the earth system; (4) ecosystem service research from a geographical perspective; (5) integration of multi-source data and model development; (6) integrated studies on unique geographical units; and (7) important global issues and relevant international programs.  相似文献   

4.
《Urban geography》2013,34(4):371-376
In the second half of the 20th century, considerable resources and efforts have been devoted to revitalizing American central cities. In these redevelopment processes, however, the common byproduct of physical upgrading is social upgrading, the displacement of many of the original residents, who are often low-income and minority, from their traditional neighborhoods. This article explores the various processes of physical and social upgrading—including locally driven urban renewal, private sector "blockbusting," and gentrification—occurring in late 20th century Houston, Texas. This research also examines the neighborhood characteristics and demographic patterns that influence the occurrence of specific upgrading processes. One location of particular interest in the study is Houston's historic African American community of Freedmen's Town, which has experienced decades of conflict over land and space. Most recently, Freedmen's Town has been at the focus of Houston's urban revival, where physical upgrading has been accompanied by the displacement of the community's traditional population and the destruction of this historic neighborhood.  相似文献   

5.
Modern physical geography in China grew from Chinese traditional geography and has been profoundly influenced by the geographical disciplines of Euro-America and Russia. Since the 1950 s, integrated studies of physical geography in China have made remarkable progress in the fields of comprehensive physical geographical regionalization, land studies, landscape ecology, and land surface geographical processes. During the past few decades, under the background of global change and rapid socio-economic transformation, a series of environmental and resources problems have boomed in China. To solve these problems and promote the development of integrated studies of physical geography, the following issues were proposed as research priorities:(1) coupling of land surface patterns and processes;(2) integrated research on regional responses and adaptation to global change;(3) analysis of human dimensions of the earth system;(4) ecosystem service research from a geographical perspective;(5) integration of multi-source data and model development;(6) integrated studies on unique geographical units; and(7) important global issues and relevant international programs.  相似文献   

6.
The short article makes a small selection of early German literature containing the term ‘cultural landscape’ accessible for an English-language readership with the aim of enabling a broader discussion of the term. After a brief overview of the usage of ‘cultural landscape’ in geographical research, four German authors and their publications are presented. Carl Ritter appears to have been the first to use Culturlandschaft, in 1832. He was followed by Carl Vogel in 1851, Joseph Wimmer in 1882 and 1885, and Friedrich Ratzel in 1893. Analysis of their use of ‘cultural landscape’ reveals different dimensions of the term: a developmental perspective on cultural landscapes, i.e. cultural landscapes developed from natural landscapes; an opposition of nature and culture; and an understanding of cultural landscape as agricultural or park landscape. The process of cultivation is described with words with a positive connotation. The comparison of these dimensions with recent geographical literature shows that long-standing ideas continue to influence present-day usage.  相似文献   

7.
This article analyses the creation and implications for cultural identity of a hybrid tourism landscape on Taiwan's Orchid Island (Lanyu). It particularly argues that Lanyu's native Tao people have begun to gain a somewhat stronger cultural identity and autonomy through this landscape. Orchid Island underwent rapid modernization within the past 60 years. The article not only shows how tourism was imposed by Taiwan's government, but also how the Tao have made greater use of tourism's landscape over time for their own purposes. Not without sociocultural problems and contradictions, Lanyu's tourism landscape has been polysemic enough to allow for gradually improving relationships between Taiwanese and Tao and for gradually increasing Tao participation in modernity on their own terms.  相似文献   

8.
At the 1992 Rio 'Earth Summit', Australia joined other nations in committing to processes leading to the formulation of 'Local Agenda 21s' (LA21s) by 1996. Subsequently, in the latter year, Whittaker carried out a national survey of local government authorities to evaluate what progress had been made. Whittaker's conclusion was that progress in Australia had been slow, but ten 'leading-edge' Victorian councils were identified through a self-reporting process. In this paper we discuss the concept of LA21, analyse in closer detail the 'progress' that has been made in the ten Victorian councils, and discuss some of the broader forces that, we argue, have made LA21 formulation increasingly difficult, particularly in the state of Victoria in the recent past.  相似文献   

9.
Throughout the last decade, the Australian economy has experienced its second longest period of uninterrupted prosperity in recorded history. The paper argues that this prosperity is sourced from an extraordinary surge in finance-based economic activity along Australia's eastern seaboard, especially in the Sydney region. Population growth in the Sydney basin has further fuelled the region's economic growth. The spatialised nature of this prosperity has produced a major shift in distributional outcomes across Australian regions and among households. Sydney-based households, especially those in inner 'global Sydney' neighbourhoods, have had access to high rates of job creation and sustained increases in income and house values. On the other hand, non-metropolitan households away from Sydney--those in regional and rural Australia--have experienced largely negative consequences as historical inter-sectoral and spatial redistribution mechanisms have been dismantled. The paper shows how divergent experiences of the new prosperity have produced an unstable political landscape in regional and rural Australia. It concludes by urging further research into the spatialised nature of economic changes in Australia, especially research that is conscious of distributional flows and outcomes.  相似文献   

10.
ABSTRACT. Twentieth‐century land reform in Chile reflects familiar themes. The state subdivided large land monopolies, ostensibly for social justice reasons: to provide opportunities for campesinos to earn a living from agriculture. In southern Chile's Tierra del Fuego a combination of social justice, nationalism, and geopolitical concerns stimulated land reform between 1924 and 1978. The effort succeeded in creating a new material landscape oriented around smaller ranches but failed to meet its socioeconomic goals. In a scenario that resonates with reforms elsewhere in Latin America, an elitist cultural landscape dominated by large‐holding corporations was replaced with another elitist landscape, though in a different form. Politically well‐connected and essentially absentee landholders acquired subdivided land and began to practice “hobby ranching.” The history of land reform in Tierra del Fuego demonstrates how new socioeconomic conditions created over the course of many decades have left their imprint on land use and the biophysical landscape. It also contributes to larger regional debates about the role of land degradation in stocking‐rate decline.  相似文献   

11.
Since the 1990s, Atlanta’s inner suburbs have experienced rising rates of poverty alongside growing racial/ethnic diversity. ? Meanwhile, on the built landscape, high-end (re)development projects incorporating New Urbanist features such as pedestrian accessibility, compact densities, and mixed land uses have become increasingly common. Although practitioners suggest that these developments promote social inclusivity and enhanced “livability,” individual cases suggest that some New Urbanist projects may be gentrifying underserved communities of color. This paper tests the extent of this concern by examining Atlanta's inner-suburban geographies of New Urbanism using a logit model. Results indicate that neighborhoods with older housing stock, more renters, lower incomes, lower rents relative to home prices, and higher Latino populations in close proximity to inner-suburban downtowns are most likely to be targeted for New Urbanist (re)development. Thus, despite the optimistic language, New Urbanism in this region appears to be serving as the inner-suburban face of gentrification.?  相似文献   

12.
Complex intersecting social, economic and environmental dilemmas in Australia's Cape York Peninsula present a number of challenges for planners seeking to develop and implement land use and natural resource management (NRM) plans. There have been five different attempts at land use and NRM planning in Cape York Peninsula over the last 20 years. These processes have (to greater or lesser extents) failed to deliver community-owned and government-supported plans to guide development and/or the management of the region's natural resources. The region is remote, sparsely populated, and home to a significant Indigenous population. Much of the contestation within the region surrounds the access, use and ownership of the region's internationally valuable natural resources. This paper reviews, from the literature, the relevancy and applicability of criteria for best practice planning and governance. A range of identified best practice governance and planning principles are applied to assess the governance arrangements for planning in the Peninsula. The paper finds that decision-making arrangements for land use and NRM planning in the Peninsula are still in their infancy and are inadequate to support effective outcomes. The paper concludes that broader attention to best practice principles in governance for planning is needed to improve planning outcomes.  相似文献   

13.
The Petexbatún region of Guatemala's Petén tropical forest lowlands has been largely deforested since the early 1980s as landless peasants have turned even national parks into milpas. The soils of these tropical forest, karst landscapes are known mainly from small-scale maps and archaeological investigations. This paper investigates soil catenas and natural slope processes from the region's last virgin tropical forests and compares these with catenas and processes on slashed and burned slopes. Soils were sampled and analyzed for physical, fertility, and taxonomic measures. This primary forest toposequence forms a typical downward translocation catena, with the thickest soils (>200 cm) in depressions, the thinnest soils on shoulder slopes, and moderately thin soils on the crests and backslopes. Most crest and sloping soils are Lithic Rendolls and contain simple O-A-C horizon sequences, and most soils have little sign of either eluviation or illuviation. A few deeper soils on the slopes are Vertic Rendolls and have moderate slick-ensides, whereas footslopes and seasonally drained depressions are well developed Vertisols. The primary forest soil catena was compared with two slash-and-burn milpas, one with comparable slopes and one with steeper slopes. The comparably sloped milpa had soil thicknesses that were 7.9 to 13.8 cm thinner, truncated horizons, and physical evidence of erosion. The steeper milpa had soil thicknesses that were 11.1 to 18.2 cm thinner and also had truncated horizons and physical evidence of erosion. Where ancient Maya terraces (Late Classic, ca. 550 to 830 A.D.) are present in the slash-and-burn landscape, an average of 25 to 46.5 cm soil remain upslope and 9.3 to 16.1 cm remain downslope. The findings show high soil truncation rates and erosion to bedrock in a decade in one place, though ancient Maya terraces are still holding 2.7 to 3.6 times more soil than the surrounding hillslopes. Despite high modern erosion, lake sediments show surprisingly low soil losses in the Maya Late Classic during the period of the most intensive land use. In contrast, studies at Copán, Honduras and in the northern Petén, where terrace evidence is scant, show high rates of erosion during this period. [Key words: soil catenas, tropical deforestation, milpa, soil erosion, Maya Lowlands.]  相似文献   

14.
地理环境因素对伊洛河流域森林景观的影响   总被引:11,自引:2,他引:9  
丁圣彦  梁国付 《地理研究》2007,26(5):906-915
地理环境因素是引起区域森林景观动态变化的主要原因。运用景观生态学的基本原理,借助于地理信息系统技术,分析了自1983年以来伊洛河流域洛宁县森林景观的动态变化。结果显示,森林景观类型总面积呈增加趋势,从1983年的960.34km2增加到1999年的1175.00km2。景观空间动态变化上,森林景观类型转化为非森林景观类型部分主要位于海拔500~1000m的低山区,海拔大于1000m的地区森林景观类型变化较小,而非森林景观类型转化为森林景观类型主要集中在海拔高度小于500m的塬陵区和川涧区。通过建立森林景观类型动态变化与相应高程、坡度、距离居民点中心的远近和与森林边缘距离之间的相互关系,分析了与上述地理环境因素之间的相关性,表明森林景观类型动态变化与上述地理环境因素之间有显著相关关系。  相似文献   

15.
奈曼旗20世纪80年代以来土地覆盖/利用变化研究   总被引:22,自引:9,他引:13  
赵杰  赵士洞  郑纯辉 《中国沙漠》2004,24(3):317-322
奈曼旗是我国北方农牧交错带沙漠化最严重的地区之一, 也是中国沙漠化监测和治理的重要地区之一。自20世纪80年代以来开始实行一系列土地整治措施, 土地覆盖/利用发生很大变化。利用1980年和1996年的1: 10万的TM遥感影像及GIS获得的数据, 从土地覆盖/利用结构变化、数量变化、空间景观特征变化以及主要变化过程等方面对其进行了研究。结果表明, 80年代以来奈曼旗耕地与难利用土地大幅减少, 林地和草地大幅增加; 土地覆盖/利用变化的主要过程为: 耕地退耕还草、还林, 难利用土地恢复为草地, 在适宜的草地上植树造林; 景观变得破碎, 土地利用的多样性增强。  相似文献   

16.
文化景观的内涵及其研究进展   总被引:56,自引:3,他引:56  
文化景观作为文化地理学的一大研究主题 ,吸引了许多学者的关注。本文从景观和文化景观的内涵出发 ,从文化景观起源和变迁、文化景观感知和解释、文化景观组成、文化景观类型、景观生态、景观保护和规划等六个方面 ,深入探讨了文化景观研究的近今进展。  相似文献   

17.
Research on domestic water use has conventionally been confined to understanding the role of physical variables such as rainfall and temperature in influencing patterns of consumption. In limiting research to this narrow focus, the significance of socio‐cultural variables has been largely ignored. This paper seeks to develop socio‐cultural understandings of domestic water use by examining water consumption as part of a broader set of consumption practices associated with suburban space. In particular, the socio‐cultural dimensions are explored on a local scale through an exploration of water‐use patterns associated with the new suburban garden: an important site of home‐making processes, and one associated with a substantial proportion of domestic water consumption. The notion of cultural capital is adopted as a framework for examining these consumption patterns. Water consumption is analysed as a practice through which cultural capital can be accumulated. It is argued that the contrasting notions of social distinction and social conformity in the suburban garden shape the accumulation of cultural capital and influence patterns of water consumption. Understanding these socio‐cultural dimensions of water consumption is important in shaping water‐use management, an issue discussed throughout the paper.  相似文献   

18.
《Urban geography》2013,34(5):413-436
Although many cities aspire to "global-city status," few have been as explicit as Singapore in its quest to create urban landscapes to project its global aspirations. This paper presents the case of the Singapore River development zone as a "hyper-symbol" of Singapore's global urbanism. By creating a world-class riverfront not unlike the acclaimed waterfronts of London, Sydney, or San Francisco, Singapore's urban planners hope to project the city as a venue worthy of world-class tourism and leisure activities, an important node in international circuits of capital, and a vibrant city for both foreign visitors and local residents. Our paper, however, also argues that local forces and influences play a significant role in the waterfront's development. The Singapore River landscape is the negotiated outcome of both globalism and localism—a dialectical landscape formed by dominant global influences on the one hand, and emerging local processes on the other. Fieldwork comprising a questionnaire survey, in-depth interviews, and on-site observations provide evidence of such global-local interactions. The paper contends that the challenges at the river are symptomatic of the broader Singapore experience as the city-state grapples with issues of national identity, local empowerment, and community rights in the midst of a global convergence of tourists, capital, people, and cultures.  相似文献   

19.
The paper examines the history of human interactions with the specific plateau and cuesta morphology developed upon Cretaceous sedimentary sequences in the Middle Sudetes, Central Europe (Poland, Czech Republic). Lithological contrasts influence relief at regional and local scale, providing diverse opportunities and limits to human activities since medieval times until the present. As a result a complex cultural landscape underpinned by geomorphology evolved through time, illustrating the concept of ‘sandstone phenomenon’. The following interactions with the physical landscape are identified: avoidance, adaptation, modification, and withdrawal. Although early modifications occurred in the late medieval period, adaptation rather than direct human impact typified the area until the mid-18th century. The expansion of settlement network in later times, along with forest clearance, development of quarrying and growth of tourism have led to substantial modifications of the geomorphological landscape and the origin of a suite of anthropic landforms. Depopulation of the region, particularly on the now Polish side, amplified after World War II, resulted in land use changes and renaturalization of many areas. Many previously occupied areas have been abandoned and various forms of nature and landscape protection now provide limitations to further development. Modification is tightly controlled, while re-adaptation is preferred and promoted, driven not by physical constraints anymore but by changing attitudes and increasing environmental awareness.  相似文献   

20.
《Urban geography》2013,34(5):465-489
This study analyzes how Mexican federal housing policy affects the production of space and the housing landscape in Guadalajara, Mexico. Using a wide-ranging database of parcels developed in metropolitan Guadalajara, we map all housing developments from 1970 to 2000 and classify them into three categories that reflect different development processes. The greatly increased number of social-interest houses, and the large extension of land area developed since 1990 are explained by federal housing program reforms. Informal settlements remain a major path to home ownership, but the percentage of housing developments that are informal and the percentage of informally developed land have declined since the 1980s. We also discovered a trend of increasing land area devoted to low-density, élite enclaves, and analyzed marketing strategies and land use patterns that occurred in these newer developments. All of these outcomes reflect a neoliberal ideology that promotes consumption and the privatization of space, but largely excludes the urban poor. The result is higher rates of home ownership, but in an increasingly segregated and fragmented landscape poorly served by public infrastructure and lacking in amenities.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号