Investigation of urban green space equity at the city level and relevant strategies for improving the provisioning in China
Introduction
In 2018, 55 % of the world’s population lived in cities, and this figure is expected to increase to 60 % in 2030 (United Nations, 2018); meanwhile, cities produce about 80 % of the global gross domestic product (GDP) (Grübler and Fisk, 2013), but they only account for 2.85 % of the global land area (World Bank, 2010). Such high bearing of cities poses sustainable development challenges like environmental pollution, urban flooding, and greenhouse gas emissions. Urban green space (UGS) is considered to be an important component for improving sustainable development capacity, as it can provide various services that enhance the resilience of cities (James et al., 2009). In regard to ecological aspects, UGS can help to clean the atmosphere and shape local climate (Jim and Chen, 2008), mitigate urban heat island effects (Ziter et al., 2019), reduce urban runoff (Yao et al., 2015), increase carbon storage (Whitford et al., 2001), mitigate noise (Dzhambov and Dimitrova, 2015), and conserve biodiversity (Aronson et al., 2017). In terms of social aspects, UGS can promote public health (Jennings et al., 2017), provide various cultural services such as recreation, aesthetics, and educational opportunities (James et al., 2009), provide places for playing, strolling, relaxing, and social interactions (Byrne and Wolch, 2009), and promote psychological benefits like emotional and spiritual fulfillment and stress reduction (Engemann et al., 2019; Van Den Berg et al., 2007). In short, UGS plays a great role in urban sustainable development, community resilience, and residents well-being because of the above functions (Bertram and Rehdanz, 2015; Colding and Barthel, 2013; Tzoulas et al., 2007). However, UGS belongs to the category of quasi-public goods because of its competitive and non-exclusive nature (Chen et al., 2019), then the allocation of UGS embodies social fairness. Therefore, UGS equity has become an important research topic. Most of existing studies examined whether social and economic characteristics such as income, age, education, and ethnicity could affect UGS equity (Byrne and Wolch, 2009; Heynen et al., 2006; Kabisch and Haase, 2014; You, 2016); studies also further examined whether UGS inequity brought health or well-being disparities (Jennings et al., 2017).
Under the influence of multi-scale studies on environmental equity (Martínez-Alier, 2003), scholars recently begun to pay attention to the scale effect of UGS equity to seek effective policy interventions for preventing disparities (Tan and Samsudin, 2017). According to the connotation of environmental justice (Walker, 2012), in this paper UGS equity at the city level refers the idea that residents in different cities should have an equal supply of green space regardless of the cities’ size, natural endowment, development stage, geographical location, and so on. Notably, it is impossible to achieve the exact same UGS supply among cities because of local geographical and environmental differences, as well as it is a dynamic process (Chen et al., 2019). However, intercity UGS equity is a main performance goal for social and regional fairness (Van Den Berg et al., 2007), and thus, its legitimacy should not be neglected and denied. Some studies have revealed relationship involving a Kuznets curve between the UGS coverage and city GDP (Chen and Wang, 2013; Kijima et al., 2010); however, according to UGS equity goal at city level, governments should take initiatives to reduce this inequity of UGS among cities, and at the very least, they should ensure that basic demands for green space in undersupplied cities are addressed. With regards to UGS studies at the city level, earlier works (Joassart-Marcelli, 2010; Joassart-Marcelli et al., 2011; Rigolon et al., 2018; Wüstemann et al., 2017) have explored UGS differences from the perspective of equity, while other studies mainly investigated the spatial pattern and influencing factors of UGS (Chen and Wang, 2013; Kabisch et al., 2016; Song et al., 2018; Yang et al., 2014; Zhu and Zhang, 2008), with no emphasis placed on UGS equity. There were also some literatures in Chinese, focusing on the spatial pattern and spatio-temporal differentiation of city level UGS, and explaining its reasonableness (Xu et al., 2019a; Liu et al., 2018, 2019).
Cities with a larger middle class and lower numbers of Latino and black residents tend to have more park provisions in the United States (Rigolon et al., 2018) in part because these cities are at disadvantage when applying for park funding and may lack nonprofits to assist with park construction (Joassart-Marcelli, 2010; Joassart-Marcelli et al., 2011). The UGS supply at the city level in Europe also shows such unfairness (Fuller and Gaston, 2009; Wüstemann et al., 2017). China has a vast territory, and its cities are now in the rapid growth phase; however, China is presently facing serious imbalances in terms of regional development that not only involves income disparities, but also well-being inequities (Li et al., 2017). Although UGS inequity caused by ethnic differences is not prominent in China, other factors such as income, natural endowments, and some China-specific factors like urban land supply may be affecting UGS equity at the city level (Chen and Hu, 2015). Recently, regional differences in UGS have been acknowledged, and the central government is supposed to take initiatives to relieve such inequity (Li et al., 2018). Thus, UGS equity investigations at the city level will be important to meet the demands of social justice, as such studies can uncover key influencing factors that may be elusive at the community scale, so as to assist with the development of effective integrated policies for alleviating regional disparities.
The term UGS in this paper mainly refers to parks and recreational green space as described in the classification system of MHURD, 2017, and these areas are focused on because they represent public nature spaces with open access and is an important indicator of overall urban environmental quality. In comparison to the available literature, the novel contributions of this paper are as follows: the first is the establishment of an UGS supply framework for local governments, which can be used to conceptually inspect how local governments provide UGS under current fiscal, land allocation, and urban planning institution; the second is the investigation of UGS equity at the city level carried out with the use of the Gini index and multivariate linear regression tools based on multi-source data including community points of interest (POIs), spatial UGS data, and related socioeconomic data (existing literature has rarely reported on China’s UGS equity at the city level with spatial UGS to reveal potential trends); lastly, improved strategies for different aspects are put forward to strengthen UGS supply equity.
Section snippets
Conceptual framework for local governments providing urban green space
Zhao and Chen, 2018 elaborated on the relevant influencing factors of UGS following a literature review, and they pointed out that studies on the supply mechanism of UGS are scarce, especially in developing countries (Choumert, 2010), so it is important to establish a framework for the UGS supply. Urban green space is defined as a local public good, and local governments are the direct suppliers (Chen et al., 2017; Choumert and Cormier, 2011). Choumert, 2010 presented a four-dimensional
Data sources
Cross-sectional data for 58 cities in the year 2017 were adopted. The 4 provincial cities in China and 2 cities in each province, i.e. the capital city and the most populated city, were selected in accordance with importance and representativeness criteria. This research only considered the UGS in urban built-up area boundary (BAB), as built-up area is the most essential and representative city concept. So first, the BABs of the 58 cities had to be delimited; this process is difficult, although
Urban green space distribution among cities
The distributions with regards to urban green space coverage rate, per capita UGS and UGS within 1500 m radius of per community among 58 cities are in Fig. 3. UGS coverage rate in Nanjing is the highest with 12.5 %, while Lanzhou is the lowest with only 0.39 %. The average value of coverage rate is 3.7 %, while it is 11.6 % in USA cities (Rigolon et al., 2018). Fig. 3 shows the coverage rate in most of the cities ranged at 1 %–5 %, and only four cities are larger than 10 %. For per capita UGS,
Relevant improvements for UGS provisioning strategies
Based on the conceptual framework established for the UGS supply of local governments, and the influencing factors identification, with the aim of enhancing the UGS supply and relieving inequity at the city level of China, relevant improvement strategies for UGS provisioning are proposed from the perspectives of the policy innovation of central government, ability enhancement of local governments, UGS planning refinement, and non-profit organization engagement.
Conclusion
In this study, we first built a conceptual framework for the provisioning of UGS by local governments, and then, estimates of UGS equity among major cities in China were studied, relevant influencing factors were identified, and lastly, UGS supply improvement strategies were recommended with the aim of enhancing UGS provisioning and alleviating inequity.
The main findings are as follows. The UGS supply of local governments is a complex systematic process, based on the natural conditions in urban
CRediT authorship contribution statement
Xin Li: Conceptualization, Writing - original draft, Writing - review & editing, Funding acquisition. Xiaodong Ma: Project administration, Supervision, Funding acquisition. Zongnan Hu: Methodology, Investigation. Siyuan Li: Data curation, Visualization, Investigation.
Declaration of Competing Interest
The authors declare no conflict of interest.
Acknowledgements
This work has been supported by the Ministry of Education, Humanities, and Social Science Fund of China (19YJCZH089), the Natural Science Foundation of Jiangsu province (BK20191468) and the National Natural Science Foundation of China (41971221).
References (97)
A ladder of citizen participation
J. Am. Inst. Plann.
(1969)- et al.
Biodiversity in the city: key challenges for urban green space management
Front. Ecol. Environ.
(2017) - et al.
The role of urban green space for human well-being
Ecol. Econ.
(2015) - et al.
Nature, race, and parks: past research and future directions for geographic research
Prog. Hum. Geogr.
(2009) - et al.
Producing nature for public: land-based urbanization and provision of public green spaces in China
Appl. Geogr.
(2015) - et al.
Urban forest development in China: Natural endowment or socioeconomic product?
Cities
(2013) - et al.
Strategic interaction in municipal governments’ provision of public green spaces: a dynamic spatial panel data analysis in transitional China
Cities
(2017) - et al.
Measurement of urban park accessibility from the quasi-public goods perspective
Sustain.
(2019) Exploring the role of nonprofits in public service provision: moving from coproduction to cogovernance
Public Adm. Rev.
(2018)The 13th Five-Year Plan of Ecological and Environmental Protection
An empirical investigation of public choices for green spaces
Land Use Policy
The provision of urban parks: an empirical test of spatial spillovers in an urban area using geographic information systems
Ann. Reg. Sci.
The potential of ‘Urban Green Commons’ in the resilience building of cities
Ecol. Econ.
China Urban-Rural Construction Statistical Yearbook:Explanatory Notes on Main Indicators (pp.195-197)
Indicators for green spaces in contrasting urban settings
Ecol. Indic.
The size and structure of China’s full-covered fiscal expenditure
China Financ. Econ. Rev.
Spending preferences of local officials with off-budget land revenues of Chinese cities
China Econ. Rev.
Green spaces and environmental noise perception
Urban For. Urban Green.
Residential green space in childhood is associated with lower risk of psychiatric disorders from adolescence into adulthood
Proc. Natl. Acad. Sci. U.S.A.
A research about public participation in the process of master-urban-planning in China—an introduction of practice of gathering public opinion via questionnaire survey
Adv. Appl. Sociol.
Accessibility of public urban green space in an urban periphery: the case of Shanghai
Landsc. Urban Plan.
Public participation, regulatory compliance and green development in China based on provincial panel data
J. Clean. Prod.
The scaling of green space coverage in European cities
Biol. Lett.
Land use planning challenges: coping with conflicts in visions of sustainable development and livable communities
J. Am. Plann. Assoc.
Urbanisation and health in China
Lancet
Energizing Sustainable Cities: Assessing Urban Energy
The Urbanization of Capital: Studies in the History and Theory of Capitalist Urbanization
The political ecology of uneven urban green space: the impact of political economy on race and ethnicity in producing environmental inequality in Milwaukee
Urban Aff. Rev.
The impact of public participation on the effectiveness of, and users’ attachment to, urban neighbourhood parks
Landsc. Res.
Green spaces as an indicator of urban health: evaluating its changes in 28 mega-cities
Remote Sens. (Basel)
Towards an integrated understanding of green space in the European built environment
Urban For. Urban Green.
Urban green space and the pursuit of health equity in parts of the United States
Int. J. Environ. Res. Public Health
Analyzing the impacts of urban expansion on green fragmentation using constraint gradient analysis
Prof. Geogr.
Assessing the ecosystem service of air pollutant removal by urban trees in Guangzhou (China)
J. Environ. Manage.
Socioeconomic effect on perception of urban green spaces in Guangzhou
China. Cities
Leveling the playing Field? Urban disparities in funding for local parks and recreation in the Los Angeles Region
Environ. Plan. A
Building the healthy city: the role of nonprofits in creating active urban parks
Urban Geogr.
Green spaces of European cities revisited for 1990–2006
Landsc. Urban Plan.
Green justice or just green? Provision of urban green spaces in Berlin, Germany
Landsc. Urban Plan.
Urban green space availability in European cities
Ecol. Indic.
Economic models for the environmental Kuznets curve: a survey
J. Econ. Dyn. Control
Administrative hierarchy and urban land expansion in transitional China
Appl. Geogr.
Can equalization of public services narrow the regional disparities in China? A spatial econometrics approach
China Econ. Rev.
Does economic development improve urban greening? Evidence from 289 cities in China using spatial regression models
Environ. Monit. Assess.
Political turnover and economic performance: the incentive role of personnel control in China
J. Public Econ.
Spatio-temporal differentiation characteristics of green rate of built district of county-level cities in China
Landsc. Archit.
Multiscale analysis of regional difference of green rate of built district in China
Chin. Landsc. Archit.
Shrinking Cities in China
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