Spatiotemporal Differentiation of Urban Spatial Form and Carbon Emissions in Poyang Lake City Group

In response to the inherent requirements of low-carbon land spatial planning in Jiangxi Province and the lack of existing research,this paper explored the mechanism of spatial form elements of Poyang Lake urban agglomeration on urban carbon emissions.Based on generalized linear regression and geographically weighted regression models,this paper analyzed the spatiotemporal distribution characteristics of carbon emissions,the spatiotemporal relationship between urban form index and carbon emissions,and the spatial differentiation of the intensity of dominant factors from 63 county-level administrative units in the Poyang Lake city group from 2005 to 2020.The results showed that:①The carbon emissions of urban agglomerations around Poyang Lake are generally increasing,and the spatial distribution of carbon emissions is characterized by high-value concentration in the middle and low-value agglomeration in pieces;②The main driving factor for the spatial heterogeneity of carbon emissions was the expansion of built-up area;③Improving urban compactness and optimizing urban form could effectively reduce urban carbon emissions.The results showcased the correlation between urban spatial landscape pattern and the spatiotemporal distribution of carbon emissions,which could make the low-carbon land spatial planning in the Poyang Lake city group more reasonable and practical.

Urban Spatial Form Optimization Strategies Based on the Principle of Climate Adaptability of Regional Architecture: A Case Study of Traditional Cave Dwelling Villages in Northern Shaanxi Province

A multitude of climate-adaptive design approaches are embedded in regional architecture,which have a positive impact on addressing the deformed development of urban spatial patterns and the dual challenges of climate and resources.This paper examines the principles of climate adaptability embedded in the site layout and spatial organization characteristics of traditional cave dwelling villages in northern Shaanxi Province.The extracted climate adaptability principles are summarized,and the resulting design strategies that are well-suited to the contemporary urban space form are presented.Through analysis,it can be observed that traditional cave dwelling villages in northern Shaanxi are predominantly situated on south-facing slopes in proximity to water at low altitudes.These villages are characterized by compact building groups and east-west development,which is constrained by the elements of mountains and rivers.A two-level street system is generated,comprising streets parallel to the contour line and roadways perpendicular to the contour line.This results in the formation of a courtyard form enclosed by mountains.Such site layout and spatial organization exhibit excellent climate adaptability with regard to heat,ventilation,and wind storage.In light of the aforementioned considerations,the following urban spatial form design strategies are put forth:①the topographic height difference can be exploited to obtain sufficient sunshine;②the group shape can be optimized in order to reduce building energy consumption;③the best orientation of the building can be chosen to take account of both winter and summer conditions;④the height and length can be combined in order to form natural masking;⑤the D/H ratio of streets and roadways should be controlled to achieve a balance between heat gain and cooling of groups;⑥vents should be set appropriately to optimize group ventilation;⑦climate buffers should be established to increase the level of climate response.

Interpretation of the Spatial Form of Chengdu Plain's Traditional Towns from the Vernacular Perspective

In recent years,with the rapid development of urbanization in our country,academic circles have paid more attentions to and made fruitful achievements on the research of vernacular settlement. On this basis,this paper took Chengdu Plain's traditional town spatial morphology as the research object to interpret its spatial form through its composition elements and characteristics which are influenced by nature,history,culture and other factors. And then,it took Jiezi ancient town as an example to analyze the renewal of its spatial form so as to inherit the vernacular culture and promote the conservation of cultural heritage and sustainable development of traditional town in the course of constructing urban cities with Chinese characteristics.

Dissolving Temporal Sequence： Spatial Form in James Joyce＇s Ulysses （＂Nausicaa＂ Episode）

In his 1945 study of Djuna Barne＇s Nightwood, Joseph Frank analyzes a crucial technique of modernist literature, the substitution of spatial relationships for temporal progression as a formal metaphor of thematic development. Starting with Gustave Flaubert and recognizing his efforts to duplicate the simultaneity of action possible in drama and later in film, Frank comments that since language proceeds in time, it is possible to approach this simultaneity of perception only by breaking up temporal sequence. While Flaubert introduces this method, it does not become a dominant form until James Joyce＇s Ulysses. According to Frank, spatialization of form in this novel provides an alternative to the chronological development normal to verbal structures, which can be read only in a linear fashion through time, unlike painting and the plastic arts, which can be visually apprehended instantaneously. Applied to Ulysses as a whole by Joseph Frank, the conception of spatial form might as well serve as a convenient point of departure for the analysis on much smaller, let＇s say, ＂episodic＂ scale. In ＂Nausicaa＂ episode, Joyce dissolves temporal sequence by cutting back and forth between the various levels of action in a slowly-rising crescendo to achieve the unified impact, the sense of simultaneous activity occurring in different places. For the duration of the episode the time-flow of the narrative is halted： various levels of action are juxtaposed independently of the progress of the narrative. Joyce, in this fragmentation of narrative structure, proceeded on the assumption that a unified spatial apprehension of not only separate episodes but his entire work would ultimately be possible.

Resilience of Wengding,the Phoenix Wa traditional village

The village of Wengding,ancestral home of the Wa ethnic group,considered as China’s last primitive tribe,suf-fered near-complete extinction due to a fire incident in 2021.Historical records indicate that stilt-style buildings,also in Wengding,are highly susceptible to fire.Nevertheless,this has not hindered the long-term existence of these distinctive architectural forms.This study analyses the reasons for the sustained existence of the traditional building forms in Wengding,from the perspective of resilience.The findings indicate that the requirements of the traditional nomadic civilization for rapid construction of dwellings,the communal consciousness toward dis-aster resistance,and the implementation of spatially oriented fire protection measures collectively account for the swift recovery and reconstruction observed in Wengding village after the disaster.These aspects are tangible manifestations of the capacity of the village for resilience.Overall,resilience is essential for the sustainability of such traditional villages in the long term.

Renovation of Traditional Water Villages in Jiangnan:A Case Study of Renovation Planning of Wenchang Village

The rapid urbanization and new rural construction have being exerted serious impact on the renovation and protection of traditional water villages in Jiangnan area(the southern regions of the Yangtze River). More and more distinctive villages are losing their historical background and regional architectural culture in modern society. Taking the renovation planning of Wenchang village as a case study, its function structure and land use are determined by the theory of "three layers of HSR(high-speed rail) station" after deep mining its history and culture. Then, the design method of rebuilding characteristic space in traditional villagesaiming at finding a proper way to handle the relationship between development and protection of traditional villagesis investigated from the perspective of natural landscape, spatial form and architectural features.

Design of Mountain Architecture for the Elderly

The paper based on relevant cases of mountain architecture is to explore design methods of mountain building for the elderly through the research on design features of mountain architecture for the elderly, the overall spatial form integrating architecture and landform, site texture, architectural form that suit terrains, diverse forms of the building entrance, building materials in harmony with nature and design of functional space.

Construction Strategies of Public Activity Spaces in Residential Districts Based on Children's Activities

The relationship between children's activities and public spaces was analyzed and summarized from three perspectives, namely, children's demands on outdoor activity spaces, factors infl uencing children's behavior requirements, and planning strategies. The paper provided theoretical support for exploring the relationship between children's activities and public spaces, and proposed planning strategies for improving use effi ciency of urban outdoor public spaces and facilities, and creating public spaces capable of meeting children's psychological needs.

Discrete spatial solitons formed in periodically poled lithium niobate by electro-optical effect

We report the numerical observation of discrete spatial solitons in a periodically poled lithium niobate waveguide array by applying an electrical field through electro-optical effect. We show that discrete spatial soliton can be controlled by applied voltage in the periodically poled lithium niobate.

Fractal Evolution of the Spatial Form of the Town and Water System in Southern Jiangsu Province:A Case Study of Suzhou City

Southern Jiangsu Province has a dense water network.Under the guidance of the new concept of harmonious development between humans and nature proposed at the 19 th CPC National Congress,it is of great significance to build a good spatial relationship between the town and its water system.Using the grid method,this paper calculates the fractal dimension of construction land and water space of 20 towns in Suzhou City since 1995,finding that the fractal dimension of town construction land rises rapidly,whereas that of water space drops slowly on a high dimension.In addition,the spatial form of town construction land and water space form are characterized by planar aggregation and sporadic growth respectively.The paper discusses the evolutionary characteristics of the fractal correlation of construction land and water space in towns with low-,medium-,and high-density water networks,as well as the represented spatial form relations and the underlying relationship between humans and nature.It concludes with an ecological restoration strategy of the two-way interaction between construction land and water space in different types of towns,which may provide a reference for the ecological progress of towns in southern Jiangsu Province.

Characteristics and Causes of the Spatial Evolution of Urban Villages:A Case Study of Shenzhen Special Economic Zone

Studies on the renovation and governance of urban villages have become the interest of human geography since the 1990s.However up to now,there is little literature focusing on the development patterns and dynamic mechanism of the spatial evolution of urban villages based on the theoretical system of urban spatial structure,and there are few scholars doing analyses on the relationship between urban villages and general urban areas in terms of spatial development.In this paper,Shenzhen,the most representative city of China in terms of urban village development,is taken as a case for exploring the characteristics and modes of the spatial evolution of urban villages.With census data of urban village construction in 1999 and 2004 in terms of built-up area,floor area,and construction intensity,the spatial and temporal evolution of the 91 administrative urban villages in the original Shenzhen Special Economic Zone have been analyzed in comparison with that of Shenzhen's general urban areas.It is indicated that the spatial evolution of urban villages matches with the general rules of the spatial development of general urban areas in three aspects.First,land expansion is the most remarkable mode of spatial evolution in the early stage of development;second,in the period of rapid development,there is the obvious tendency of "distance-decay" in terms of construction intensity accompanied by some anomalous fluctuations at certain points;third,renewal and redevelopment are carried out gradually in the mature stage of development.However,because of historical and institutional restrictions,the spatial evolution of urban villages shows its unique characteristics in the aspects of original spatial distribution and spatial expansion mode in the period of rapid development,etc.The outcomes of this study would help not only enrich the theoretical study on the evolution mode of urban spatial structure,but also strengthen the administration over urban villages,in particular with the suggestions that the spatial evolution of urban villages as a type of urban space should not be the same as that of general urban areas and its unique characteristics should not be ignored;specific rules should be set up to guide the rational spatial evolution of urban villages according to the economic development of the city,as well as the housing demands of various kinds of residents.

Adaptive Transition of Traditional Handicraft Villages Under the Rule of Consanguinity Community:A Case Study of Xizhuang Village in Xinjiang County,Shanxi Province

As an important witness to the rural industry in the agricultural era,traditional handicraft villages have attracted renewed attention in the contemporary context of intangible cultural heritage protection.The dual characteristics of their traditional cultural heritage and modern economic benefits make these villages an important carrier of the dynamic inheritance and development of the heritages under the background of rural revitalization.This paper takes a stonemason village of Xizhuang in Xinjiang County,Shanxi Province,as an example,and reveals the evolutionary characteristics of traditional handicraft villages in the process of transition from agricultural to industrial society from the“social-spatial”perspective.In the agricultural era,the kinship,production organization,and religious beliefs of traditional handicraft villages were closely linked under the blood relationship in a clan-based structure,forming a“social-spatial”trinity composed of“residence,production,and spirit.”In the industrial era,the development of handicraft economy results in the transformation of the“social-spatial”form of the settlement,the social structure shrank from clan control to nuclear family domination,the production space began to be stripped away from villages,the living space changed from gathered clan living to separated-family homes,and the spiritual place was transformed into public space.However,due to the inter-generational transmission of handicrafts based on blood relationship,the consanguinity community has always been the main carrier for the continuity of skills,and has become the stable foundation for maintaining the“social-spatial”form of the village.Therefore,the adaptive transition of traditional handicraft villages in the context of socio-economic transformation continues the interconnection among society,economy,and space,and presents a unique vitality and comparative stability.