Page 112 - JCAU-5-2
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Journal of Chinese
            Architecture and Urbanism                                         Study on ecosystem service value in Wuhan



            must be used. Although the price information at different   than 2.5 m, which is conducive to the accuracy of land use
            stages were collected and corrected with the Consumer   classification and valuation. The unit value-based approach
            Price Index (CPI) to improve the comparability of prices,   was often used in previous works that evaluated the ESV
            the historical material parameters were hardly accurate due   of Wuhan, whereas the primary data-based approach was
            to the large number of evaluation indicators, especially its   applied and many dense new parameters were adopted in
            historical dynamic change indicators; therefore, constant   the present study, which provide reference for subsequent
            average condition of material parameters were adopted.   research.
            Such constant average material parameters would affect the   Although urbanization had caused the increase of
            accuracy and precision of ESV over time. Compared with   built-up area and the massive loss of cultivated land, the
            the benefit transfer method criticized due to the validity   total ESV in Wuhan showed an increasing trend due to
            and accuracy (Plummer, 2009), market valuation method   the combined effects of rapid economic development and
            assesses ESV in each area directly, but further accurate   ecological protection policies implementation. Thus, it is
            analysis is necessary, and the use of various technologies   necessary to implement ecological protection policies for
            and resources will be required.                    sustainable development. However, the different stages of

            5. Conclusions                                     urbanization and the potential of ecological protection
                                                               measures have different influences on the ESV, which
            In this study, we adopted a detailed estimation of ESV in the   should be further studied in future research, especially in
            response of land use change in Wuhan, a big city in central   highly dispersed, heterogeneous, and complex urban areas.
            China. Based on the land use data, socioeconomic data,
            and natural resources data, the ESVs during the 22 years   Acknowledgments
            from 1996 to 2018 were evaluated from the perspectives of   None.
            urban ecology. The main conclusions are as follows:
            (i).  The land use changed substantially from 1996 to 2018.   Funding
               Although  the  built-up  area  expanded  significantly   The authors would like to acknowledge support from Ethnic
               (63.52% in 1996 – 2018), and the cultivated land   and Religious Affairs Commission of Hubei Province
               continued to decrease significantly (28.73% in the   (SMZW201901) and Social Sciences Project of Hubei
               period 1996 – 2018) due to economic development   Provincial Department of Education (Grant No.18Y066).
               and rapid urbanization, forestry area, and water area
               increased by 32.21% and 20.72%, respectively, at the   Conflict of interest
               same time.
            (ii). The ESV maintained an increasing trend throughout   The authors declare they have no competing interests.
               the study period, with average annual growth rate   Author contributions
               of 1.27% (from 1996 to 2000), 3.86% (from 2000 to
               2005), 3.49% (from 2005 to 2010), 2.97% (from 2010   Conceptualization: Yunhua Lin, Donghoon Lee
               to 2015), and 1.87% (from 2015 to 2018).        Investigation: Yunhua Lin
            (iii). Although the total ESV continued to rise during   Visualization: Yunhua Lin
               the study, the development direction of the internal   Writing – original draft: Yunhua Lin
               structure had undergone further changes. Direct   Writing – review & editing: Yunhua Lin, Donghoon Lee
               use value, which directly generates economic value   Ethics approval and consent to participate
               including provision and cultural services, increased
               significantly, up by 21.77% (from 11.97% in 1996   Not applicable.
               to 33.73% in 2018), with an average annual growth
               rate of 6.53% and 29.14%, respectively. Meanwhile,   Consent for publication
               indirect  use  value,  which  had  no  direct  economic   Not applicable.
               value including regulation and supporting services,
               continued to decline (from 88.03% in 1996 to 66.27%   Availability of data
               in 2018) with an average annual change rate of −1.45%   Not applicable.
               and −1.23%, respectively, except for hydrological
               regulation and gas regulation.                  References

              In this study, we evaluated the ESV based on the   Bai, Y., Ouyang, Z. Y., Zheng, H., Xu, W. H., Jiang, B., & Fang, Y.
            national land survey data whose resolution ratio is better   (2011). Evaluation of the forest ecosystem services in Haihe


            Volume 5 Issue 2 (2023)                         17                       https://doi.org/10.36922/jcau.0427
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