Negotiating Green Space with Landed Interests: The Urban Political Ecology of Greenway in the Pearl River Delta,China

Land‐centred urbanisation has precipitated shortage of green space in Chinese cities. However, in the Pearl River Delta, an ambitious greenway system has recently managed to flourish. It is intriguing to ask how this has become possible. Informed by the perspective of urban political ecology, this paper finds that the greenway project in the Pearl River Delta represents a set of politically realistic endeavours to alleviate urban green space shortage by adapting to, rather than challenging, powerful landed interests. Three interlocking dimensions about land—municipal land quota, rural land use claims, and real estate development—have influenced why, where and how greenways have been created. Based on these findings, we argue that research on China's politics of urban sustainability necessarily needs to understand the country's land politics.     

大事件影响下的城市空间演化特征研究——以昆明为例

本文将大事件作为一种植入城市进程中的空间生产与再生产过程,分析了大事件空间效应的形成机制,认为"大型投资"与"社会动员"是嵌入城市社会空间统一体并推动城市"物质空间"与"社会空间"演化的内在机制。进而以昆明市为例,界定了昆明世博会的空间影响期,研究了影响期内城市物质空间与社会空间演化的基本特征。文章认为世博会的植入是上述特征形成的影响因素之一,并从空间投资、社会动员与社会植入的角度建立了昆明世博会与城市空间演化关系的解释框架。     

Squatting Social Centres in a Sicilian City: Liberated Spaces and Urban Protest Actors

The Social Centres in Italy are simultaneously “liberated spaces”, empty and unused large buildings squatted by groups of radical left/antagonist activists to self‐manage social and countercultural activities, and “political contentious places”. They are indeed urban but not only local protest actors, denouncing the scarcity of spaces of sociability outside of commercial circuits, campaigning against market‐oriented urban renewal, property speculation, and on other anti‐capitalistic issues addressed outside the occupied spaces. The long history of Social Centres in Catania, the second largest city of Sicily, is reconstructed and explained through the choices and actions made by the squatters/activists, depending on their political‐ideological orientation, on the one hand; and by the opportunities and constraints of the specific political and socio‐spatial structure, which they had to face, on the other. The Social Centres, CPO Experia, CSOA Guernica, CSA Auro, and more recently CSO Liotru, are the main analysed empirical cases.     

Time,Waste, and the City: The Rise of the Environmental Industry

In many US cities, especially those in the Rust Belt, the environmental goods and services (EGS) industry has played a significant role in restructuring local economies to promote new, flexible, and “creative” forms of service‐based labour. And yet much of the environmental work conducted in these cities has been directed at an industrial past, cleaning up the waste left over from long‐departed manufacturing sectors. Returning to David Harvey's earlier work on the urban process, this paper develops a theory of waste switching that situates EGS within a larger renegotiation of space and time across city landscapes. This theory is fleshed out in case studies of the EGS industry in Baltimore, Pittsburgh, and Milwaukee, where new cycles of accumulation have been built on refuse, toxins, and dead labour. These “toxi‐cities” and their cleanup challenge traditional conceptions of urbanisation as spatially—but also temporally—bounded.     

Becoming‐urban,becoming‐forest: a historical geography of urban forest projects in Australia

In recent times, local governments in Australia's major cities have embraced the idea that the trees in their streets, parks, and private gardens are parts of a collective urban forest that can be managed to address complex policy problems and create more liveable and sustainable cities. In light of this proposition, applied and critical urban forest researchers have typically focused on questions of quantity with regard to some of the factors that influence the density and distribution of urban tree cover. In a few cases, however, researchers have documented qualitative changes to the urban trees and woodlands that ostensibly constitute the urban forest, suggesting that it might be apprehended in a more mutable and dynamic way. Building on these accounts, we turn to Deleuze and Guattari's theory of becoming to read the urban forest in an active and malleable light, developing a historical geography of urban forestry in Australia that discerns three urban forest projects we call the ‘forest in a city’, the ‘city forest’, and a new but not yet realised, ‘city in a forest’. This finding renders the urban forest in more contingent, multiple, and mutable terms, leading us to finish the paper with a consideration of what seeing the urban forest as becoming means for future research. There, we suggest that Deleuze and Guattari's becoming directs us to different kinds of empirical, political, and ethical concerns that haven't received significant interest in the current literature. These include asking how, why, and with what consequences do particular styles of urban forestry emerge at particular space‐times. How is qualitative difference and urban forest multiplicity dealt with in practice, as well as focusing on affect and everyday embodied encounters between people and trees in different urban places.     

Ghosts,Memory, and the Right to the Divided City: Resisting Amnesia in Beirut City Centre

Violently divided cities are incubators of ethnic conflicts. Under the auspices of postwar reconstruction, these cities are supposedly disciplined into peace through the regeneration of the city centre, including privatization, commercial adaptation and gentrification strategies. Such dynamics render city centre space amnesiac, with no reference to the history of sectarian violence, and exclusivist by limiting public access. Rather than foster peacebuilding, city centre regeneration exposes the dangerous weakness of the neoliberal peace built on accommodating ethnic and socioeconomic divisions. This paper connects Lefebvre's right‐to‐the‐city to non‐sectarian social movements’ struggle to forge participatory democracy in Beirut's city centre. A key aspect of these movements’ activities is to reprogramme memory—cosmopolitan and inclusivist—into the city centre, a project supporting peacebuilding.     

THE GEOGRAPHIC DISTRIBUTION OF HUMAN CAPITAL: MEASUREMENT OF CONTRIBUTING MECHANISMS

This paper investigates how the geographic distribution of human capital—measured as college attainment—evolves over time. With U.S. data, I decompose generation‐to‐generation changes in local human capital into three factors: the previous generation's human capital, intergenerational transmission of skills from parents to their children, and migration of the children. I find significant persistence of local skills at the commuting zone (local labor market) level. Labor market size, climate, and local colleges affect local skill measures. Skills move from urban‐to‐rural labor markets through intergenerational transmission but from rural‐to‐urban labor markets through migration.     

Relational concepts of space and place: Issues for planning theory and practice

This paper seeks to conceptualize and explore the changing relationships between planning action and practice and the dynamics of place. It argues that planning practice is grappling with new treatments of place, based on dynamic, relational constructs, rather than the Euclidean, deterministic, and one‐dimensional treatments inherited from the ‘scientific’ approaches of the 1960s and early 1970s. But such emerging planning practices remain poorly served by planning theory which has so far failed to produce sufficiently robust and sophisticated conceptual treatments of place in today's globalizing’ world. In this paper we attempt to draw on a wide range of recent advances in social theory to begin constructing such a treatment. The paper has four parts. First, we criticize the legacy of object‐oriented, Euclidean concepts of planning theory and practice, and their reliance on ‘containered’ views of space and time. Second, we construct a relational understanding of time, space and cities by drawing together four strands of recent social theory. These are: relational theories of urban time‐space, dynamic conceptualizations of ‘multiplex’ places and cities, the ‘new’ urban and regional socio‐economics, and emerging theories of social agency and institutional ordering. In the third section, we apply such perspectives to three worlds of planning practice: land use regulation, policy frameworks and development plans, and the development of ‘customized spaces’ in urban ‘regeneration’. Finally, by way of conclusion, we suggest some pointers for practising planning in a relational way.     

It all used to be better? Different generations on continuity and change in urban children's daily use of space

There is much speculation about children's changing space–time behaviour, yet little is actually known about it. The study reported on here, which was based on oral histories, statistical and archive research, and observations in Amsterdam, compared children's use of space during the 1950s and early 1960s with that of today. The public space of the street used to be a child space, but in two of the three streets studied it has been transformed into an adult space. Conversely, private home space—traditionally the domain of adults—has become a child space. Over time, children's geographies have become more diverse. In addition to the traditional childhood of outdoor children, we distinguish indoor children and children of the backseat generation. These two new types are characterized by a decrease in playing outdoors and an increase in adult supervision. Although this may be regarded as a loss, new children's activities have emerged, outdoors as well as indoors. Contemporary cities can be exciting places for children, but it is clear that inequality by class has become more manifest. Both new geographical childhoods have resulted in a decrease in children's agency, which may have a negative impact on segregation patterns.     

La métropolisation à l’aune de la ‘loi’ taille/rang : Le cas Canadien, 1971–2001

Metropolization and the rank/size ’law‘: the Canadian case, 1971–2001 There is currently considerable interest in the process of metropolization. One of the consequences of this process, observed by numerous researchers, is the slower growth and even decline of small and medium cities. From a theoretical point of view, this process is compatible with endogenous growth theory: metropolitan areas offer economic actors certain key factors (access to information, to global networks, etc.) that smaller cities cannot. Concurrently, however, there is a resurgence of interest in Zipf's law and, more generally, in the stability of urban hierarchies. These two bodies of work appear to be in contradiction. However, using Canadian data from 1971 to 2001, we show that whilst metropolization is indeed occurring, this is not necessarily incompatible with a regular urban hierarchy. Indeed, if it is assumed that Zipf's rank‐size rule applies to urban systems in stable socio‐economic contexts, and that this regularity can be disrupted by fundamental social and economic changes, then the current wave of metropolization can be interpreted as a re‐ordering of cities in the face of the major social and economic changes of the 1980s and 1990s, which may eventually lead to a new equilibrium compatible with Zipf's law.     

The landscapes of professional farms in mid‐sized cities,France

In this paper, we provide a spatial analysis of agriculture in three mid‐sized French cities, with a particular focus on professional farms. The existence of important agricultural spaces inside the cities is confirmed. We reveal the persistence of a field‐based, market‐oriented agriculture in French mid‐sized cities, often ignored in studies on urban agriculture, and usually made invisible. Our results highlight the farms' diversity, as well as a diversity of farmers' viewpoints on the relations between urban and agricultural places. We emphasise the importance of three main determinants in the observed dynamics: the cities' geographies; the impact on farmers of land speculation and urbanisation; and the implementation of resistance and adaptation processes by some farmers. These results are discussed in relation to the literature on urban and peri‐urban agriculture.     

The Evolution of Neoliberal Urbanism in Moscow, 1992–2015

This article examines the urban development of Moscow from 1992 to 2015, arguing that the city's recent transformation from grey asphalt jungle to a “city comfortable for life” is driven by a process of neoliberal restructuring. In particular, the study finds that a set of multi‐scalar dynamics—namely, the global financial crisis, the rise of a local protest movement, and an intensified rivalry between federal and Muscovite elites—were the key driving forces behind Moscow's current evolution. The work advances a conceptual framework of neoliberal urbanisation that enhances the literature on post‐socialist cities and, more generally, the broader debate on actually existing neoliberalism.     

Rescaled “Rebel Cities”, Nationalization,and the Bourgeois Utopia: Dialectics Between Urban Social Movements and Regulation for Japan's Homeless

Urban social movements (USMs) and regulation have co‐evolved in Japan to deal with homelessness, spatializaing their politics on the national and subnational scales. The author first theorizes these USM–regulation relationships as scale‐oriented dialectics between two opposing forces—“commoning and othering”—both of which in my view are always internalized in today's “rebel cities” (Harvey 2012, Rebel Cities, Verso). Then, he analyzes two trajectories of USMs that attempted commoning—ie radical opening up of public goods/spaces within “zones of weakness” (Lefebvre 2009a )—against policing and workfare disciplines. The author detects “rescaling” dialectics in the case of Yokohama and “nationalizing” dialectics in the case of Tokyo. Lastly, through exploring and refreshing Engels's notion of the (petit‐)bourgeois utopia, the author concludes that our commoning projects and imaginaries are constrained by capitalist urban form that spatially others the homeless; but truly revolutionary moments of commoning emerge whenever people—even temporarily—conquer the fetishism of the public/private binary embedded in this urban form.     

Lynch's The Image of the City after 50 Years: City Marketing Lessons from an Urban Planning Classic

Exactly half a century ago, the MIT-scholar Kevin Lynch published The Image of the City (1960). The book was agenda-setting, thanks to its original approach to the way people perceive the urban environment. Over the years, The Image of the City has become a classic among urban planners. Fifty years after its publication the study is still highly topical and relevant. In this contribution, we argue that not only urban planners, but also city marketers can learn from Lynch's most cited book. The framework Lynch devised to assess urban areas is of great use for cities that look for a distinctive image to market themselves. After a short review of the book, we explore the opportunities of the Lynchian framework for city marketing. Next we briefly discuss case examples of three European cities: the Finnish capital of Helsinki, Bielefeld in the German region of Westphalia and the old industrial city of Enschede in the Netherlands. The paper concludes by suggesting city marketers to do a “picture postcard test” to examine the link between the city's built environment and the city's marketing.     

Campgrounds as service hubs for the marginally housed

The service hub concept is strongly associated with deprived areas of North American inner cities, where agglomerations of low‐cost housing and service providers form a space of survival for marginalised populations. In this paper, we contend that service hubs can take other forms, including as small‐scale sites of housing and service provision, informally networked across an urban region. We develop this argument with reference to suburban campgrounds in Auckland, New Zealand—a city experiencing a severe housing affordability crisis. Both individually and collectively, campgrounds enable vulnerable households, as well as tourists, to inhabit an increasingly exclusionary urban environment. Drawing on interviews with 24 resident campers and eight managers, we highlight the role of campgrounds in supporting residents through the provision of informal housing and on‐site services. This provision also benefits the facilities' owners and managers, by creating a year‐round rental income stream. We find that campgrounds are critically important for those whose lives are rendered precarious by the housing market.     

Unpacking administrative rank: Intercity competition and the remaking of local state space in China

The literature on interurban competition emphasizes that market rules as an external coercive power dominate local state space conductive to economic growth. Is there another external coercive power, other than the market as a hidden hand, to promote and mitigate interurban competition? Addressing this question, this paper specifies that the Chinese state's political efforts to downplay the role of the market in, and remake the rule of, interurban competition could have far reaching implications for urban political economy. The two cases are Ruili and Wanding, two border cities located on the edge of China's southwestern borderland adjacent to Myanmar. While reranking is supposed to balance out the inefficiencies of market principles in interurban competition, multiple rounds of reranking in Ruili and Wanding in the past seven decades indicate that this political orchestration can accelerate interurban competition into a cutthroat game for economic growth and thus create problems for macro economic management. Nevertheless, it can become a political tool to revamp the game by strategically selecting some cities as nodes of development at the sacrifice of urban fortunes of other cities. In this process, market rules operate in parallel with, and sometimes succumb to, the principle of political order from above. This finding expands the geographies of the state: the co-constitution of the local and the national becomes necessary and pragmatic since interurban competition is not a territorially-conditioned endeavor, but remains open to extralocal stakeholders—upper-level governments in this case—who can remake local state space.     

Globalising Economic Governance,Political Projects,and Spatial Imaginaries: Insights from Four Australasian1 Cities

This paper explores how territorial economic governance is discursively constituted in a globalising and neoliberalising world. It acknowledges both the increasingly recognised formative role of spatial imaginaries in economic interventions and the workings of co‐constitutive political projects that link particular imaginaries with political ambitions and policy strategies. Embracing recent calls for comparative ethnographic urban research at the local‐global interface, it explores currently dominant spatial imaginaries across the four Australasian cities of Auckland, Sydney, Melbourne, and Perth. Based on multiple qualitative methods, this study claims that a considerable number of actor's spatial associations and reference points can be related to particular city‐specific governmental projects; Auckland's Super‐City, Sydney's Global and Green City, Melbourne's Liveable City, and Perth's Vibrant City. It is demonstrated how discursive governance techniques such as ‘story‐telling’, benchmarking, and policy transfer have been pivotal in the activation, circulation, and performance of those spatial imaginaries and their transformation into temporarily dominant visions for strategic urban interventions aimed at repositioning urban actors, spaces, and activities. While spatial imaginaries can be related to differently framed global aspirations, the effects of spatial political projects on urban governance and investment trajectories differ significantly across space. Theoretically, the paper stresses the importance of particular conceptions of territorial relations and time‐ and place‐specific institutional mediation in shaping context‐dependent discursive material governance alignments.     

Placing Lefebvre

Geographers have extensively used Lefebvre's concept of space as a social product as a framework guiding urban and political critique. Lefebvre articulates social space through a primarily ontological engagement: he describes a complex and multi‐faceted object that exists in three simultaneous but distinct, co‐producing registers. The famous “triad” has become canonical within Anglophone geography, but the implications of this ontology for knowing or researching the object of “(social) space” often remain implicit. This paper suggests that recent scholarship on place‐making helps to address the latent epistemological challenges of operationalizing Lefebvre's triad. We trace linkages and gaps between Lefebvrian space and contemporary theorizations of relational place. Re‐examining social space through the lens of relational place highlights the potential for links between epistemologically diverse recent research and twenty years of Lefebvre‐inspired critique.     

Geographic information system‐based edge effect correction for Ripley's K‐function under irregular boundaries

Ripley's K‐function is a test to detect geographically distributed patterns occurring across spatial scales. Initially, it assumed infinitely continuous planar space, but in reality, any geographic distribution occurs in a bounded region. Hence, the edge problem must be solved in the application of Ripley's K‐function. Traditionally, three basic edge correction methods were designed for regular study plots because of simplified geometric computation: the Ripley circumference, buffer zone, and toroidal methods. For an irregular‐shaped study region, a geographic information system (GIS) is needed to support geometric calculation of complex shapes. The Ripley circumference method was originally implemented by Haase and has been modified into a Python program in a GIS environment via Monte Carlo simulation (hereafter, the Ripley–Haase and Ripley–GIS methods). The results show that in terms of the statistical powers of clustering detection for irregular boundaries, the Ripley–GIS method is the most stable, followed by the buffer zone, toroidal, and Ripley–Haase methods. After edge effects of irregular boundaries have been eliminated, Ripley's K‐function is used to estimate the degree of spatial clustering of cities in a given territory, and in this paper, we demonstrate that by reference to the relationship between urban spatial structure and economic growth in China.     

A Fractal Approach to Identifying Urban Boundaries. 城市边界识别的分形方法

Fractal geometry can be used for determining the morphological boundaries of metropolitan areas. A two‐step method is proposed here: (1) Minkowski's dilation is applied to detect any multiscale spatial discontinuity and (2) a distance threshold is located on the dilation curve corresponding to a major change in its behavior. We therefore measure the maximum curvature of the dilation curve. The method is tested on theoretical urban patterns and on several European cities to identify their morphological boundaries and to track boundary changes over space and time. Results obtained show that cities characterized by comparable global densities may exhibit different distance thresholds. The less the distances separating buildings differ between an urban agglomeration and its surrounding built landscape, the greater the distance threshold. The fewer the buildings that are connected across scales, the greater the distance threshold.