At present, China’s economic development has entered a “new normal.” Exploring industrial ecological efficiency (IEE) in the background of economic transformation is of great significance to promote ...China’s industrial transformation and upgrading and achieving high-quality economic development. Based on the super-efficiency DEA model, this study evaluated the IEE of cities in the Yellow River Basin from 2008 to 2017. Exploratory spatial data analysis methods were used to explore the spatial-temporal evolutionary characteristics, and a panel regression model was established to explore the influencing factors of IEE. The research results showed that the IEE in the Yellow River Basin exhibited an elongated S-shaped evolutionary trend from 2008 to 2017, and the mean IEE of cities presented a trend, whereby Yellow River Basin’s regions could be ranked in the following order: lower reaches > middle reaches > upper reaches. There was significant spatial autocorrelation of the IEE in the Yellow River Basin, and the hot and cold spots showed an obvious “spatial clubs” phenomenon. The results of panel regression show that the influence factors of IEE in the Yellow River Basin showed spatial heterogeneity in their effect.
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CEKLJ, EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Much scholarly attention has been paid to the urban transformation occurring in China. A large amount of literature pertains to the role of local governments in Chinese coastal cities, but very few ...studies have focused on the relations between local governments and the capital flow process, especially regarding inland cities with little foreign and domestic investment. Using Ordos as a case study, this paper proposes a model of “local government-directed capital switching” to explain how new town projects are financed and what roles local governments play in capital switching. In contrast with Harvey's model of capital switching, we find that the Ordos government has dominated the three circuits of capital accumulation in the new town making through a series of administrative measures. It follows the logic of “spatial fix” and yet adopts quite different strategies to channel the capital accumulated in the primary circuit into the built environment. The crisis associated with this capital switching model is also discussed.
•The features, factors and mechanism of the “local government-directed capital switching” model are proposed.•The Ordos government has dominated the three circuits of capital accumulation in the new town making.•The Chinese experience provides useful information about local state regulations in the post-global financial crisis era.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK, ZRSKP
In the context of an overall improvement in the national economy, residents' demand for nutrition and health has been increasing. An industry that provides healthy eating plays an increasingly ...important role in urban development. Few studies, however, have focused on the relationship between the urban road network structure and the vitality of the healthy catering industry (VHCI). Based on social media data and urban traffic network data, in this study, we explored the impact mechanism of street centrality on the VHCI through a case study of Jinan, China, using geographic detectors and multiscale geographically weighted regression (MGWR) methods. The results show the following: First, the vitality of the catering industry in the main urban area of Jinan has multicore spatial distribution characteristics, and the high-value areas of the vitality of the catering industry are highly matched with the main business districts in the city in space. Second, we found clear spatial differences in street centrality between the walking and driving modes. With an increase in the search radius, the trend of high-value areas closely gathering in the urban center became clearer. The distribution of betweenness was observed from sheet to grid, and the multicenter structure of straightness was more prominent. Third, differences in the residents' perception of the road network structure caused by different travel modes affected their choice of dining places. In the driving mode, betweenness and straightness had a greater impact on the vitality of the catering industry, and the effect of closeness in the walking mode was more obvious. Fourth, the influence of street centrality on the vitality of the healthy catering industry had obvious spatial heterogeneity. In the walking mode, the spatial heterogeneity of straightness was the strongest, followed by betweenness, and closeness was the weakest; in the driving mode, the spatial heterogeneity of closeness was the strongest, followed by straightness, and betweenness was the weakest. From the perspective of residents' travel, the results of this study revealed the influence mechanism of urban road network characteristics on the VHCI. This information can aid planning for urban space optimization and improve residential living quality.
In post-reform China, local governments, instead of the central state, have become major promoters of urbanization. Differing from the existing literature based on Western theories, this article ...argues that a localized perspective, ＇administrative urbanization＇, can provide a contextual explanation for the mechanism of urbanization in the reform era. The case study of Ordos indicates that new town construction, especially in the inland area, has become the main strategy for investment attraction and economic development. The local government has played a dominant role in this construction through a series of administrative measures, including avoidance of central state regulations, land leasing, high standard infrastructure construction, relocation policies and industrial attraction. This article also explores the issue of unsustainability in the new town, and identifies that underdeveloped industrialization, slow population agglomera- tion and real estate bubbles are primary threats to the sustainability of administrative urbanization.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Increasing industrial water use efficiency is key to achieving sustainable industrial development. This study employed bootstrap-data envelopment analysis to calculate the industrial water use ...efficiency in 31 Chinese provinces from 2005 to 2015. The regional differences and spatial spillover effect of the industrial water efficiency of the 31 provinces were analyzed. Moreover, a spatial Tobit model was used to examine the factors that influence industrial water efficiency. The results showed that the industrial water use efficiency values of all the 31 provinces were less than 1 during the study period, which implied that industrial water use has not reached optimal status and can be further improved. The regional differences in industrial water use efficiency exhibited a U-shaped trend (convergence followed by diffusion). Provinces with high industrial water use efficiency were distributed in the eastern and coastal regions of China, whereas those with low industrial water use efficiency were concentrated in the western regions. Furthermore, regional backgrounds influenced the spatial spillover effect of industrial water efficiency. The transition probabilities of different industrial water use efficiency values varied under various regional conditions. Analysis of the influential factors indicated that the water resources per capita, amount of R&D input, and strength of environmental regulation restrain the increase of industrial water efficiency, whereas the GDP per capita, industrial structure, and amount of foreign investments promote the increase of industrial water efficiency. Accordingly, countermeasures and suggestions are proposed for increasing the industrial water use efficiency in the studied provinces and in China as a whole.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Many aromatic plant volatile compounds contain methyleugenol, which is an attractant for insect pollination and has antibacterial, antioxidant, and other properties. The essential oil of
leaves ...contains 90.46% methyleugenol, which is an ideal material for studying the biosynthetic pathway of methyleugenol. Eugenol synthase (EGS) is one of the key enzymes involved in the synthesis of methyleugenol. We recently reported two eugenol synthase genes (
and
) present in
, where
and
were mainly expressed in flowers, followed by leaves, and had the lowest expression levels in stems. In this study, the functions of
and
in the biosynthesis of methyleugenol were investigated using transient gene expression technology and virus-induced gene silencing (VIGS) technology in
. Here, in the
genes overexpression group, the transcription levels of the
gene and
gene were increased 13.46 times and 12.47 times, respectively, while the methyleugenol levels increased 18.68% and 16.48%. We further verified the function of the
genes by using VIGS, as the transcript levels of the
and
genes were downregulated by 79.48% and 90.35%, respectively, and the methyleugenol content in
decreased by 28.04% and 19.45%, respectively. The results indicated that the
and
genes were involved in the biosynthesis of methyleugenol, and the transcript levels of the
and
genes correlated with the methyleugenol content in
.
China's new town and ghost city phenomenon has attracted interest from academics and the media since the 2010s. There is, however, little research on the lived experiences of people in new towns, or ...of the transformation of these new towns. This paper uses Lefebvre's spatial triad to examine how the spaces of the new town are produced and transformed by interactions between multiple actors. Using an analytical framework based on the spatial triad, we explore the interactive mechanisms and the dialectical relationships within the triad. Taking Kangbashi, a new town in Ordos, Inner Mongolia, as a case study, we explore how the spatial production of a new town is co-created by multiple actors, and local government-led conceived space plays a dominant role in that creation. Through interactions in the dynamic nexus of conceived-perceived-lived space, the new town space is in the process of transformation from an empty “ghost city” to a comfortable habitable city. This research deepens our understanding of new towns and production of space by connecting state-led and capital-driven urban construction with the lived practices of residents. Moreover, this empirical Chinese study contributes to knowledge and understanding across diverse global urban contexts.
•An analytical framework based on the spatial triad is proposed.•The mechanisms for the transformation of a new town space from a ghost city to a more habitable city is examined.•The local government dominates both the production of space and its transformation in the new town.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK, ZRSKP
A resource-based city is a type of city characterized by the exploitation and processing of natural resources as the leading industry in the region. Such cities provide essential resources for ...China's economic development and support long-term rapid economic growth. However, resource-based cities (RBCs) face challenges, including resource depletion, economic recession, environmental pollution, and ecological damage, to which not enough attention has been paid. In the context of China's increased focus on environmental protection and the economy, improving industrial ecological efficiency of RBCs has become ever more important. In the present study, the Super-SBM model was used to measure the industrial ecological efficiency of 114 RBCs in China from 2003 to 2016. The results show that during the study period, the industrial ecological efficiency of RBCs in China improved significantly, particularly in the central and western regions. The results from a Tobit model show that appropriate environmental regulation and financial pressure have a positive impact on the industrial ecological efficiency of RBCs. However, when faced with the dual pressures of environmental regulation and financial difficulty, improvement in industrial ecological efficiency was inhibited. The impact of environmental regulation and financial pressure on industrial ecological efficiency of cities in different regions and development stages and with different resource types shows heterogeneity. In accordance with the study findings, differentiated measures and suggestions are proposed to improve the industrial ecological efficiency of RBCs.
Promoting the greening of industry is the key to achieving high-quality and sustainable development of the urban economy. It is particularly important for resource-based cities (RBCs) that exploit ...natural resources as the leading industries. In this paper, the Windows-Bootstrap-DEA model was used to calculate the industrial eco-efficiency (IEE) of 114 RBCs in China from 2003 to 2016, and the regional differences and dynamic evolution characteristics of the IEE were analyzed. The panel Tobit model was used to explore the factors associated with IEE in RBCs. The results showed that the IEE of RBCs in China was at a low level during the study period, and the resource utilization process had not reached an optimal state. There were large regional differences in IEE, and there was a significant degree of spatial agglomeration. The results of conditional probability density estimation showed that the distribution of IEE had strong internal stability on the whole, and the distributions of IEE of RBCs in different regions, different resource types, and different development stages showed significant differences. The results of the panel Tobit model showed that per capita GDP, ownership structure, science and technology input, and industrial agglomeration had significant positive effects on IEE, while industrial structure and employment structure showed significant negative effects. The conclusions of this paper can provide a scientific decision-making basis for industrial transformation planning of RBCs.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
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