Department of Geography

In this special issue, we have tried to bridge studies of the Chinese state and of the Chinese city by employing the concepts of space production and territoriality. Three sets of analytical tools frame our questions: First, we use the concept of “urbanization of the local state” instead of “state-led urbanization” to capture the active role of urban processes as a formative force in social transformation and a definitive element in the making of the local state. Urban construction has become the key mechanism of local state building in the areas of public finance, territorial power consolidation, and local leaders’ political performance. Second, we expand the concept of the city to encompass the notion of territoriality, defined as spatial strategies to consolidate power in a given place and time and to secure autonomy. Territorial contestation is unusually intense when the premises of state authority are under-defined and local state jurisdictional boundaries shift frequently, as has been the case in China over the past thirty years. Third, we expand the analysis of territoriality from the realm of the state to that of society with the concept of “civic territoriality.” This concept refers to societal actors’ conscious cultivation and struggle to build territory for self protection and autonomy at the physical, socio-political, and discursive levels. Civic territoriality is central to societal actors’ cultivation of collective identities, to their framing of grievances and demands, and to their options and choice of collective actions. This framework helped to organize the seven contributions of this issue into the following three themes: Territorial Order and State Power, Territorialization of Capital, and Civic Territoriality.   Download PDF for full text of Introduction.

Future climate presents conflicting implications for forest biomass. We evaluate how plant hydraulic traits, elevated CO₂ levels, warming, and changes in precipitation affect forest primary productivity, evapotranspiration, and the risk of hydraulic failure. We used a dynamic vegetation model with plant hydrodynamics (FATES-HYDRO) to simulate the stand-level responses to future climate changes in a wet tropical forest in Barro Colorado Island, Panama. We calibrated the model by selecting plant trait assemblages that performed well against observations. These assemblages were run with temperature and precipitation changes for two greenhouse gas emission scenarios (2086-2100: SSP2-45, SSP5-85) and two CO₂ levels (contemporary, anticipated). The risk of hydraulic failure is projected to increase from a contemporary rate of 5.7% to 10.1-11.3% under future climate scenarios, and, crucially, elevated CO₂ provided only slight amelioration. By contrast, elevated CO₂ mitigated GPP reductions. We attribute a greater variation in hydraulic failure risk to trait assemblages than to either CO₂ or climate. Our results project forests with both faster growth (through productivity increases) and higher mortality rates (through increasing rates of hydraulic failure) in the neo-tropics accompanied by certain trait plant assemblages becoming nonviable.

Abstract: The Mundra Port on the Gulf of Kutch in western India is one of India's largest port projects today. This article takes the port-circulated narrative of the coast being a natural harbor as its starting point, to show how fresh water was central to official maritime projects until the early postcolonial period. Conserving mangroves and freshwater creeks was not antithetical to maritime ports but part of the same administrative project. Political and infrastructural shifts from the river to the tide naturalized the erasure of coastal fresh water and transformed the coast into a singularly tidal space, creating the conditions for the development of a large-scale, high-technology shipping port.

Care is a practice and form of labour making human survival and flourishing possible. This Symposium explores the place and work of care within housing movements, asking how care operates as a politics, an ethics, and a set of practices through which tenants survive—and ultimately seek to transform—the structural violence of capitalist housing systems. Situated in US cities with abiding associations with Blackness and indigeneity, papers in the Symposium examine housing movements that take care as the starting point. As we discuss in this introduction to the Symposium, in such movements, care operates as connective tissue across households and modes of difference; challenges relations of racial capitalism and settler colonialism that underlie dominant understandings of who deserves and can demand care; and drives calls for public care and experiments with non-propertised forms of ownership. Housing systems are care infrastructures, making housing movements a vital place for care work.

Private renting increasingly comprises a complex ecosystem of actors who assemble housing within the market, and collect rental income and data from tenants, and data on the material assets themselves. Our analysis – at the intersection of rentier and platform capitalism – focuses on landed (material real estate) and technological (digital infrastructure and data) property in Australia’s private rental system. Drawing out relationships between the various actors – landlords, rental property managers and real estate agencies, software developers and providers, property developers and investors – and both their properties and their uses of Proptech (property technology), we show how housing and technology are being leveraged for profit in new ways. In Australia, landed property retains its precedence for established (individual and institutional) landlords, whose interest in Proptech relates to enhancing or value-adding to rental housing assets. For Proptech and institutional real estate players seeking to consolidate both landed and technology property, capturing the tech landscape is increasingly important; indeed, securing control and/or consolidation of technology property is a key motivation for building and/or using Proptech among the largest property developers. Our findings show how rent extraction operates across and between different types and scales of property and market actors, and in new ways that differentiate the figure of the rentier while upholding the dynamics of the rentier model.

This rejoinder engages with the commentaries on my article on ‘Digital experiments with landed property’ from Julien Migozzi and Sara Safransky. In my response, I share my reflections on the valuable provocations and interrelated themes offered in these generous commentaries. First, I argue that an especially distinctive aspect of digital experiments with landed property is the volumetric property relations they are generating. Second, I attend to subjectivities cultivated within and against digitised property relations, and how they relate to structures of power. Third, I extend my thinking on the glitchiness and fallibility associated with processes of experimentation.

A wide range of digital innovations has changed property relations globally over the past fifteen years. What are we to make of these digital experiments with landed property? I argue we should not mistake their technological novelty for a break with the geographic and historical specificities of property relations. The yoking of property to modernity and civilization makes technological progress a fundamental part of how relationships to land are constituted and reconstituted, and in whose interests, throughout global capitalism. In this article, I situate 21st century housing market technologies within sedimented relations of landed property in the United States, showing the history of property innovation in the United States is also one of racialized wealth accumulation and dispossession. I interpret current anxieties about ‘robot landlords’ as anxieties about how the shifting landscape of property ownership appears to threaten the economic benefits associated with racial dominance.

This study identifies 38 cases of windthrows in the Amazonia to explore the relationship between windthrows and the characteristics (storm passing time, cloud top temperature, and maximum precipitation) of mesoscale convective systems (MCSs) that produced them. Most of windthrow cases in this study occurred in August and September. The storm passing time is positively correlated with the size of windthrows. MCSs with colder cloud top temperature (with a mean at 206 K)—indicating deeper convection—resulted in large windthrows, while those with warm cloud top (with a mean above 230 K) resulted in relatively small windthrows except for windthrows in the western Amazonia. No significant relationship is found between maximum precipitation intensity and the area of windthrows.

The recovery of long-term climate proxy records with seasonal resolution is rare because of natural smoothing processes, discontinuities and limitations in measurement resolution. Yet insolation forcing, a primary driver of multimillennial-scale climate change, acts through seasonal variations with direct impacts on seasonal climate¹. Whether the sensitivity of seasonal climate to insolation matches theoretical predictions has not been assessed over long timescales. Here, we analyse a continuous record of water-isotope ratios from the West Antarctic Ice Sheet Divide ice core to reveal summer and winter temperature changes through the last 11,000 years. Summer temperatures in West Antarctica increased through the early-to-mid-Holocene, reached a peak 4,100 years ago and then decreased to the present. Climate model simulations show that these variations primarily reflect changes in maximum summer insolation, confirming the general connection between seasonal insolation and warming and demonstrating the importance of insolation intensity rather than seasonally integrated insolation or season duration^2,3. Winter temperatures varied less overall, consistent with predictions from insolation forcing, but also fluctuated in the early Holocene, probably owing to changes in meridional heat transport. The magnitudes of summer and winter temperature changes constrain the lowering of the West Antarctic Ice Sheet surface since the early Holocene to less than 162 m and probably less than 58 m, consistent with geological constraints elsewhere in West Antarctica^4-7.