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1.
In this article we argue that planning theory and practice should engage more with the normative political vision of Gilles Deleuze and Félix Guattari. They reject the transcendent authority of the State and arguably by extension, planning. As planners we should be concerned: need we reconceptualize, or abandon the planning project? We outline their vision, highlighting key concepts including lines of flight, revolution, the new land, and immanent organization, and use two cases from the United States and Mexico, the Food Commons and Center for Integral Farmer Development in the Mixteca, to show that planning in accordance with Deleuze and Guattari may indeed be possible. We end with questions: is what we describe planning? And what is planning – or what should it be?  相似文献   

2.
The mass elevation effect(MEE) is a thermal effect, in which heating produced by long wave radiation on a mountain surface generates atmospheric uplift, which has a profound impact on the hydrothermal conditions and natural geographical processes in mountainous areas. Based on multi-source remote sensing data and field observations, a spatial downscaling inversion of temperature in the Tianshan Mountains in China was conducted, and the MEE was estimated and a spatio-temporal analysis was conduct...  相似文献   

3.
This paper uses data for the period 1950–2050 compiled by the United Nations Population Division together with methods including spatial autocorrelation analysis, hierarchical cluster analysis and the standard deviational ellipse, to analyze the spatio-temporal evolution of population and urbanization in the 75 countries located along the routes of the Silk Road Economic Belt and the 21st-century Maritime Silk Road, to identify future population growth and urbanization hotspots. The results reveal the following: First, in 2015, the majority of Belt and Road countries in Europe, South Asia and Southeast Asia had high population densities, whereas most countries in Central Asia, North Africa and West Asia, as well as Russia and Mongolia, had low population densities; the majority of countries in South Asia, Southeast Asia, Central Asia, West Asia and North Africa had rapid population growth, whereas many countries in Europe had negative population growth; and five Belt and Road countries are in the initial stage of urbanization, 44 countries are in the acceleration stage of urbanization, and 26 are in the terminal stage of urbanization. Second, in the century from 1950 to 2050, the mean center of the study area’s population is consistently located in the border region between India and China. Prior to 2000, the trajectory of the mean center was from northwest to southeast, but from 2000 it is on a southward trajectory, as the population of the study area becomes more concentrated. Future population growth hotspots are predicted to be in South Asia, West Asia and Southeast Asia, and hotspot countries for the period 2015–2030 include India, China, Pakistan and Indonesia, though China will move into negative population growth after 2030. Third, the overall urban population of Belt and Road countries increased from 22% in 1950 to 49% in 2015, and it is expected to gradually catch up with the world average, reaching 64% in 2050. The different levels of urbanization in different countries display significant spatial dependency, and in the hundred-year period under consideration, this dependency increases before eventually weakening. Fourth, between 2015 and 2030, urban population hotspots will include Thailand, China, Laos and Albania, while Kuwait, Cyprus, Qatar and Estonia will be urban “coldspots.” Fifth, there were 293 cities with populations over 1 million located along the Belt and Road in 2015, but that number is expected to increase to 377 by 2030. Of those, 43 will be in China, with many of the others located in India, Indonesia and the eastern Mediterranean.  相似文献   

4.
With great significance in ecosystem protection and sustainable development, the study of ecosystem service consumption (ESC) has become a hot topic in ecological research. Based on FAOSTAT data, in this study the patterns, composition and evolution of ESC and ecosystem service consumption patterns (ESCP) in the “Belt and Road” were revealed on the total and regional scales, taking consumed-biomass as a main indicator. Three main conclusions were reached. 1) The total ESC was mainly contributed from farmland ecosystems along the “Belt and Road” , followed by grassland ecosystems. The ESC indicators on the whole system scale fluctuated, but increased from year 2000 to year 2016. The total ESC increased from 12911.89 Tg yr -1 to 16810.00 Tg yr -1, and the annual per capita consumption of ecosystem services increased from 3.3228 million g p -1 yr -1 to 3.6392 million g p -1 yr -1. 2) The ESC, composition and evolution varied significantly among countries, zones and ecosystems. The annual per capita ESC was highest in Mongolia on the national scale, and highest in Central and Eastern Europe and lowest in Southeast Asia on zone scale, which represented the results from the joint effects of regional resource endowments, consumption habits, levels of productive forces, and other factors. 3) Higher farmland ESC was the dominant ESCP, which accounted for about 76.7% of the total area along the “Belt and Road”, followed by higher farmland + higher grassland ESC, which accounted for about 19.0% of the total area. The other consumption patterns (i.e., those of higher grassland ESC, higher forestland ESC or higher farmland + higher forest + higher grassland ESC) were found in only a few countries. The ESCP may be related to higher regional population density or the higher proportions of developing countries. Therefore, to realize sustainable social, economic and ecological development, and to improve people's well-being, countries along the “Belt and Road” should take advantage of their own resources in developing industries, actively expand trade, achieve mutual benefits and win-win situations, and adjust and optimize consumption patterns of ecosystem services. This study can provide data support for further research on the mechanism of ESCP formation this area.  相似文献   

5.
EffectoftheenvironmentinAntarcticaonimmunefunctionandelectroencephalogramYuYongzhong(于永中);WangZonghui(王宗惠);ZhangWencheng(张文诚)...  相似文献   

6.
High-quality industrial development (HID) is a requirement of the modern economy and regional development. This paper designed a four-dimensional HID evaluation framework according to the logic of “development foundation-development theme-development subject-development guarantee.” Specifically, momentum cultivation as the foundation, efficiency improvement as the theme, and quality promotion as the subject are the three pivots driving the industrial transformation from high-speed development to high-quality development. A stable economic environment and a harmonious social environment are the guarantees of HID. Choosing the π-shaped Curve Area of the Yellow River basin in China as the study area, this paper measured the spatiotemporal pattern of HID and its four dimensions using the entropy-weighted TOPSIS method based on relevant economic indicators. Besides, the obstacle recognition model was adopted to identify the obstacles to HID. Findings include: From 2005 to 2019, the HID in the Curve Area was characterized by spatial unevenness and relative stability. The industrial structure and industrial layout were more rational in provincial capitals and large cities than in other cities. The spatial organization of the industrial economy presented an incompact polycentric structure, and the industrial association was relatively weak in the curve’s upper reaches. Almost all cities have experienced an increase in single-factor productivity, and technological progress contributed most to the total factor productivity growth. During the study period, the development momentum stabilized at high levels in Inner Mongolia while at low levels in resource-based cities. The development environment in most cities has remained stable, and the social welfare has increased and distributed more equitably in the Area. The technological introduction and the rationalization of the industrial structure were the primary obstacle factors for the Area in realizing HID, and the upgrading of the industrial location index was critical to the upper reaches of the curve. This paper was expected to provide new ideas for studying industrial transformation and practical policy proposals for regional development in the Curve Area.  相似文献   

7.
《Urban geography》2013,34(7):988-1003
This article argues that urban skateboarding and the laws by which the city is governed must be understood as intertwined. The transformation of skateboarding's most popular practices from the 1970s onward are a product of an ongoing dialectical engagement between young people and the law. When faced with shifting landscapes of property and liability, young skaters have adapted their practices, seeking out new types of terrain. This search has led skateboarding into the public spaces of the city and regimes of urban governance. Contemporary efforts to build public skateparks in cities such as Seattle, Washington are properly contextualized as part of a continuing evolution of skaters' agency in responding to and capitalizing on openings in the legal landscape. By working both within the political system and constructing skateparks outside conventional political avenues, skatepark advocates seek spaces that are free from increasingly restrictive conventional logics of private and public property.  相似文献   

8.
The planned construction of hundreds of hydroelectric dams in the Amazon basin has the potential to provide invaluable ‘clean’ energy resources for aiding in securing future regional energy needs and continued economic growth. These mega-structures, however, directly and indirectly interfere with natural ecosystem dynamics, and can cause noticeable tree loss. To improve our understanding of how hydroelectric dams affect the surrounding spatiotemporal patterns of forest disturbances, this case study integrated remote sensing spectral mixture analysis, GIS proximity analysis and statistical hypothesis testing to extract and evaluate spatially-explicit patterns of deforestation (clearing of entire forest patch) and forest degradation (reduced tree density) in the 80,000 km2 neighborhoods of the Brazil's Tucuruí Dam, the first large-scale hydroelectric project in the Amazon region, over a period of 25 years from 1988 to 2013. Results show that the average rates of deforestation were consistent during the first three time periods 1988–1995 (620 km2 per year), 1995–2001 (591 km2 per year), and 2001–2008 (660 km2 per year). However, such rate dramatically fell to half of historical levels after 2008, possibly reflecting the 2008 global economic crisis and enforcement of the Brazilian Law of Environmental Crimes. The rate of forest degradation was relatively stable from 1988 to 2013 and, on average, was 17.8% of the rate of deforestation. Deforestation and forest degradation were found to follow similar spatial patterns across the dam neighborhoods, upstream reaches or downstream reaches at the distances of 5 km–80 km, suggesting that small and large-scale forest disturbances may have been influencing each other in the vicinity of the dam. We further found that the neighborhoods of the Tucuruí Dam and the upstream region experienced similar degrees of canopy loss. Such loss was mainly attributed to the fast expansion of the Tucuruí town, and the intensive logging activities alongside major roads in the upstream reservoir region. In contrast, a significantly lower level of forest disturbance was discovered in the downstream region.  相似文献   

9.
《The Journal of geography》2012,111(6):240-249
Abstract

This article offers video lessons that interweave visual and written materials in order to introduce university undergraduates (who may or may not be geography majors) to some recent shifts in geographic inquiry. What is often described as the “cultural turn” in human geography invites us to examine more closely the politics of representation, whereby power relations animate the ever-unfolding construction of cultural identities. These examples of pedagogy explore the formulation of geographic knowledge about two cultural groups—the Maori and the Romany (a.k.a. Gypsies).  相似文献   

10.
Given the importance of waterway depths in river development, the effects of the evolution of bars and troughs on waterway expansion play an important role in river management and water depth conservation. This study aims to expand the waterway dimensions of the Jingjiang Reach of the Yangtze River. To achieve this objective, determining the relationship between river evolution processes and the potential for waterway depth improvement and navigation hindrances is vital. Therefore, the sedimenta...  相似文献   

11.
12.
After the Indian Ocean tsunami of 2004 a number of academics published texts in attempts to make sense of the disaster. Frustrations and feelings of inability to do something useful to assist were expressed. The academic discussions arising from the disaster may be linked with more general discussions around conducting relevant and responsible research in the social sciences. This paper addresses the role of researchers in the aftermath of the tsunami disaster in Sri Lanka and explores how the debate following the tsunami can move on to refine researchers' roles in geography by way of participatory action research (PAR), a research strategy that has received limited attention in research on disasters. The paper begins by situating the debate in the spatial politics of humanitarian work and academic research. Then discussions that arose among geographers in the aftermath of the tsunami are presented and potentials for conducting responsible research by engaging with the field are introduced. In the final section, starting with the notion of responsible research, how PAR can potentially bring us forward in developing principles and tools for more responsible geographical research in the context of emergencies is discussed.  相似文献   

13.
Rivers in deserts present unique geographical features owing to aeolian-fluvial interactions. In this study, 510 surface sediment samples were gathered from eight watersheds to systematically examine the major element characteristics of riparian sand dunes in northern China deserts. The findings revealed that these dunes could be categorized into three primary zones: Type I, comprising Keriya, Tora, Heihe, and Langqu rivers in the west; Type II,featuring the Maquan River in the Tibetan Plateau; ...  相似文献   

14.
Mélanges are formed by sedimentary, tectonic and diapiric processes and are generally found in collisional belts. The Zagros Orogeny provides an intriguing geological laboratory for the study of mélange-forming processes during the progressive tectonic evolution of the Neotethys Ocean. Different types of tectonic and sedimentary mélanges occur in specific structural positions within the Zagros orogenic belt in the Neyriz Region (Iran). Based on their block-in-matrix fabrics, and tectonostratigraphic positions, we differentiated 14 different mélange types, which mark different episodes of the tectonic evolution of the Neyriz Region from the Cretaceous subduction to the Miocene collision. The Cretaceous subduction stage is recorded by volcanic-sedimentary mélanges (Mv). Sedimentary mélanges characterized by megabreccia from the Cretaceous limestone (Ms1) and Eocene polymictic megabreccia (Ms2) represent epi-nappe mélanges formed during the Palaeocene–Eocene in wedge-top basins. The ophiolite emplacement in the Oligocene resulted in local extensional tectonics in the upper part of the ophiolitic nappe, and deposition of a polymictic megabreccia (Ms3, Ms4). As the final production of the Neotethys Ocean closure and the Eurasian-Arabian collision, the sedimentary mélanges characterized by different types of chaotic rock units (Ms5, Ms6, Ms7 and Ms8 facies) were developed in front of the Cretaceous–Eocene nappes due to growth of the orogenic wedge in the Miocene. Our findings indicate that the recognition and distinction of different types of mélange may provide additional constraints for a better understanding of the tectono-sedimentary evolution of the Neotethyan region.  相似文献   

15.
Trend and Characteristics of Variation on the Runoff of the …   总被引:3,自引:1,他引:2  
Chao  LY jun  JH 《中国沙漠》2000,20(3):273-277
根据唐乃亥等有关台站的水文气象观测资料,对黄河上 唐乃亥以上流域的径注琢演变规律进行了分析探讨,并在此基础上用灰色拓扑、混合门限自回归及周期外延-逐步回归等数学模型对其未来的变化趋势进行了预测。结果表明,黄河上游唐乃亥以上流域径流目前正处于一个枯水段的底部,并且从现在超的今后若干年里将呈现一个波动状上升的变化趋势。  相似文献   

16.
ABSTRACT

The aim of the article is to determine what a local Digital Agenda (DA) implies for ICT development at the local level and how such a policy can be realised in practice. The topic is discussed in relation to the EU and Swedish Digital Agendas, which have motivated the definition of a local DA for the examined Swedish municipality of Linköping. An analytical model is used both to examine the balance of supply-side and demand-side policies of the local DA, and in an attempt to determine what a local DA implies for local ICT development. The empirical material shows that local policy focused on supply-side strategies towards households and businesses, while demand-side policy was present to a greater extent in the management of the municipality’s own operations. The local authority has provided a major expansion in broadband infrastructure to rural areas of the municipality. This complies with mandates from local authorities to manage local infrastructure development and services to the local population. The authors conclude that the policy implications of the results suggest that although operations through the local DA are substantial, complementary measures to support increasing demands across households and businesses are important when dealing with challenges of uneven access and underutilisation of the large investments for ICT infrastructure.  相似文献   

17.
Protected area management in Norway is undergoing institutional changes with the implementation of management models aimed at increased public participation. At the same time tourism enterprises are increasing in number within the protected areas. Greater levels of interaction with stakeholders place new demands on lead institutions in terms of communication, transparency, involvement, and power sharing. A governance perspective was used to examine some facets of the interaction between a local council managing a national park in Norway and tourism companies using the park for their operations. The main objective was to assess how the tourism sector perceives the cooperation and interface with the management institution. Semi-structured interviews were used, together with a framework of United Nations Development Programme principles of good governance: legitimacy and voice, direction, performance, accountability, and fairness. The results showed rather negative evaluations by the tourism sector, and operators expressed views, implying that the current management model fails to achieve most of the principles of good governance. Although based on a one-sided view by one group of stakeholders, the study suggests that lack of access to important processes and decisions, perceived bias towards traditional conservation, neglect of cultural heritage, and undue restrictions on access could have serious implications for developing an effective management model.  相似文献   

18.
The article examines the role and contribution of preferential treatment of state enterprises to growth in the textile and garment industry. State enterprises are still the largest single sector in the textile and garment industry in Vietnam, but are losing market shares to private Vietnamese enterprises and foreign‐owned enterprises despite the benefits that they enjoy. However, in the present context of economic transition and keen competition in the global market, well‐managed state enterprises are attractive to foreign buyers of their products and have a role to play in market access abroad. This contrasts with the neoliberal notion that privatization is essential to competitiveness in the global market.  相似文献   

19.
孙松  王荣 《极地研究》1996,7(2):87-93
孙松,王荣StudyontherelationshipbetweenthediameterofthecompoundeyeandthegrowthoftheAntarctickrill¥SunSongandWangRongInstituteofOce...  相似文献   

20.
1 IntroductionA certain pattern of channel is the product of its self-adjustment under given boundary, discharge and sediment conditions[1]. A lot of experiments have been performed in flumes, usually with an initially-regulated straight channel being constructed in the flume, to determine the impact of these conditions on channel morphologies and patterns[2-6]. Schumm's experiments[3] demonstrated that when the bed-load channels transport only sand at constant discharge, channels develop from…  相似文献   

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