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Dr. Qingmu Su
National Cheng Kung University

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0 Flood Management
0 climate change
0 Urban and Regional Plannning
0 resilience analysis
0 Risk assessment

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climate change
Flood Management
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Short Biography

Department of Urban Planning, National Cheng Kung University, the research direction is resilient city, urban disaster prevention, flood management and geographic information system application.

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Research article
Published: 31 July 2021 in Environmental Science and Pollution Research
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Under the threat of climate change, the issue of climate justice has gradually received international attention in recent years. Climate justice focuses on the unfair phenomena in various regions caused by climate change. At present, some countries are facing “double inequality,” that is, the reverse and separate distribution of “natural hazard” and “social resilience” and that of “risk” and “responsible input.” Therefore, this study constructed a research framework for evaluating climate justice. The framework reconstructed the indicator system and conducted verification analysis on the research issues of climate justice, including the spatial correlation between “natural hazard” and “social resilience” and that between “risk” and “responsible input,” and uses the “bivariate local indicators of spatial association” method to detect the regional current situation and test the justice after government’s resource investment. In this way, four-quadrant spatial characteristics were obtained (high-high, low-low, high-low, and low-high districts) to identify the areas with the characteristics of climate justice. This study used Taiwan as the research area. The results show that Taiwan currently has only 7 regions with “double inequality.” Therefore, only a small part of the region has “double inequality.” The results can be used as the basis for future government’s resource input and the allocation of climate responsibility.

ACS Style

Hsueh-Sheng Chang; Qingmu Su; Yi Shiuan Chen. Establish an assessment framework for risk and investment under climate change from the perspective of climate justice. Environmental Science and Pollution Research 2021, 1 -13.

AMA Style

Hsueh-Sheng Chang, Qingmu Su, Yi Shiuan Chen. Establish an assessment framework for risk and investment under climate change from the perspective of climate justice. Environmental Science and Pollution Research. 2021; ():1-13.

Chicago/Turabian Style

Hsueh-Sheng Chang; Qingmu Su; Yi Shiuan Chen. 2021. "Establish an assessment framework for risk and investment under climate change from the perspective of climate justice." Environmental Science and Pollution Research , no. : 1-13.

Journal article
Published: 16 July 2021 in Ecological Indicators
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Land resources are not only the spatial carriers of social and economic development, but also the carriers of environmental and ecological services. With the accelerated urbanization, the non-coordinated development of land resources and environmental protection will restrict economic growth and the benefits of land use changes. Moreover, the economic efficiency and environmental efficiency of land use largely depend on the value judgment of the decision makers on the future human environment. Therefore, it is extremely important to achieve a win–win outcome of land development and ecological protection. In this research, a new analysis framework for land use efficiency was proposed from the perspective of decision makers' different benefit preferences. This framework uses the unexpected output of environmental pollution as a bridge to build a two-stage data envelopment analysis (DEA) model to evaluate the economic efficiency, environmental efficiency and overall efficiency of land development, and weight parameters were constructed to express decision-makers' preferences. The model not only considers the objectivity of the scores of land use efficiency, but also guarantees the subjectivity of decision-makers in land use management. This is also the biggest difference between previous studies in this study. The specific conclusions are: (I) as decision makers tend to focus on economic benefits, economic efficiency first rises and then declines. It can be seen that ignoring the problem of environmental pollution will reduce economic efficiency. (II) Generally speaking, the efficiency of compact land development (0.883) in various counties and cities in Taiwan is greater than the efficiency of expanded land development (0.737). This research can provide guidance on the distribution of land resources and the development of land space on a macro-regional scale.

ACS Style

Qingmu Su; Xiaoqin Jiang. Evaluate the economic and environmental efficiency of land use from the perspective of decision-makers’ subjective preferences. Ecological Indicators 2021, 129, 107984 .

AMA Style

Qingmu Su, Xiaoqin Jiang. Evaluate the economic and environmental efficiency of land use from the perspective of decision-makers’ subjective preferences. Ecological Indicators. 2021; 129 ():107984.

Chicago/Turabian Style

Qingmu Su; Xiaoqin Jiang. 2021. "Evaluate the economic and environmental efficiency of land use from the perspective of decision-makers’ subjective preferences." Ecological Indicators 129, no. : 107984.

Journal article
Published: 15 June 2021 in Journal of Cleaner Production
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The deepening of globalization and the rapid socio-economic development have contributed to the increasing demand for water resources, which intensified the problem of water shortage. Cross-regional water transfer is an effective measure to alleviate the contradiction between the supply and demand of regional water resources. However, due to the strong interaction among the water source area, water-receiving area and the downstream of the water source area in the water transfer project, how to measure the impact of metacoupling of water transfer remains to be explored. Firstly, this study constructs the input and output indicators of the model. The input indicators are mainly based on Water Transfer, while the output indicators emphasize the economic, social and ecological benefits of water used by provinces and cities, which facilitates the measurement of the metacoupling. Secondly, the evaluation framework for the parallel data envelopment analysis (DEA) model of metacoupling of water transfer was built from the perspective of efficiency. This framework divides the metacoupling of the water transfer project into intracoupling, pericoupling and telecoupling, and opens the internal structure of the traditional DEA system. By calculating the efficiency of each system and using the weighted average method, the overall efficiency and the efficiency of each part of water transfer can be evaluated. In addition, the overall efficiency can be optimized by adjusting the proportion of water resources. The main results are: (Ⅰ) The overall water efficiency of the Middle Route of China's South-North Water Transfer Project is high, at above 0.7, with intracoupling(0.605)

ACS Style

Qingmu Su; Xiang Chen. Efficiency analysis of metacoupling of water transfer based on the parallel data envelopment analysis model: A case of the South–North Water Transfer Project-Middle Route in China. Journal of Cleaner Production 2021, 313, 127952 .

AMA Style

Qingmu Su, Xiang Chen. Efficiency analysis of metacoupling of water transfer based on the parallel data envelopment analysis model: A case of the South–North Water Transfer Project-Middle Route in China. Journal of Cleaner Production. 2021; 313 ():127952.

Chicago/Turabian Style

Qingmu Su; Xiang Chen. 2021. "Efficiency analysis of metacoupling of water transfer based on the parallel data envelopment analysis model: A case of the South–North Water Transfer Project-Middle Route in China." Journal of Cleaner Production 313, no. : 127952.

Research article
Published: 18 March 2021 in Environmental Science and Pollution Research
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With the climate change and the acceleration of urbanization, urban flood disaster is becoming increasingly frequent, leading to more severe impact than in the past. The traditional disaster alleviation strategies have gradually expanded to non-engineering disaster reduction strategies. As urban public property, public facility is more available than private land, making it the preferred strategy of site selection for urban land flood diversion. However, due to the limited government finance, how to select public facilities as the multi-use detention basin to maximize the disaster reduction and external benefits is an issue that needs to be considered before planning and decision-making. This study builds an operable decision model of site selection of urban public facilities as multi-use detention basin from the perspective of environmental efficiency. The decision model analyzes the expected costs and benefits of the multi-use detention basin based on data envelopment analysis (DEA) and cross-efficiency analysis, so as to establish the optimal combination of alternative schemes of site selection. It further compares with the traditional detention basin considering only disaster reduction efficiency to summarize how to improve the strategy of selecting multi-use detention basin site within the watershed in the future. This paper uses the watershed of Dajiaxi as a case study, and finds that (I) there is a certain trade-off relationship between the optimized schemes established from the perspective of environmental efficiency and disaster reduction efficiency evaluation. The scheme with the highest disaster reduction efficiency does not necessarily increase the external benefit significantly; (II) for the inefficient schemes, the difference between the site selection schemes and the ideal efficiency value can be measured through slack variable analysis.

ACS Style

Hsueh-Sheng Chang; Chun-Yin Man; Qingmu Su. Research on the site selection of watershed public facilities as multi-use detention basin: an environmental efficiency perspective. Environmental Science and Pollution Research 2021, 1 -15.

AMA Style

Hsueh-Sheng Chang, Chun-Yin Man, Qingmu Su. Research on the site selection of watershed public facilities as multi-use detention basin: an environmental efficiency perspective. Environmental Science and Pollution Research. 2021; ():1-15.

Chicago/Turabian Style

Hsueh-Sheng Chang; Chun-Yin Man; Qingmu Su. 2021. "Research on the site selection of watershed public facilities as multi-use detention basin: an environmental efficiency perspective." Environmental Science and Pollution Research , no. : 1-15.

Journal article
Published: 13 March 2021 in Sustainability
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The increasing demand of humankind has caused a large number of land use changes, which pose a direct or indirect threat to the environment while promoting economic growth. The lack of risk-oriented land use changes may increase the disaster risk in the region. Therefore, how to study the relationship between land use change and disaster risk deserves attention. In this study, a research framework with quantitative relationship between land use change and disaster risk was constructed from the perspective of efficiency. The framework integrated land use change, disaster losses and environment variable (runoff increment) into a three-stage data envelopment analysis (DEA) assessment model to dynamically evaluate the impact of land use changes on disasters. The main conclusions include: (I) after the influence of runoff increment and random error was excluded, the overall risk score of counties and cities in Taiwan is 0.643, which represents a relatively high level, indicating that land use changes have caused high disaster risk; and (II) the vulnerability of land development in each county and city can be obtained through the comprehensive score of disaster risk the amount of unused input. The results of this study can help government agencies to rank various types of land development and then determine the acceptable risk level and incorporate disaster risk into land development.

ACS Style

Qingmu Su; Kaida Chen; Lingyun Liao. The Impact of Land Use Change on Disaster Risk from the Perspective of Efficiency. Sustainability 2021, 13, 3151 .

AMA Style

Qingmu Su, Kaida Chen, Lingyun Liao. The Impact of Land Use Change on Disaster Risk from the Perspective of Efficiency. Sustainability. 2021; 13 (6):3151.

Chicago/Turabian Style

Qingmu Su; Kaida Chen; Lingyun Liao. 2021. "The Impact of Land Use Change on Disaster Risk from the Perspective of Efficiency." Sustainability 13, no. 6: 3151.

Journal article
Published: 09 February 2021 in Urban Climate
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Urbanization and climate change have led to a large number of stormwater runoff issues. How to deal with stormwater runoff is not only affected by local factors, but also by the surrounding land consumption. Therefore, it becomes particularly difficult to clarify the responsibility for the runoff. This study constructed a guiding planning framework for runoff distribution from the perspective of fairness. This framework established an evaluation method for regional unbalanced development through the coupling relationship between local coupling and telecoupling and multi-regional input-output, and used the evaluation results as a basis for realizing fair distribution of the increment of stormwater runoff, thereby clarifying the attribution of runoff responsibilities. The main conclusions about watershed of Dajiaxi are: (I) Compared with urbanization, climate change is the main factor causing the increase in stormwater runoff. (II) From the perspective of the coupling relationship, the external system needs to share 70.7% of the runoff increment, the midstream and downstream need to share 4.88% and 23.44% of the total runoff, while the upstream only needs to share 1.39% of the total runoff. The results of this study provide a foundation for the medium-scale runoff distribution planning.

ACS Style

Hsueh-Sheng Chang; Qingmu Su. Exploring the coupling relationship of stormwater runoff distribution in watershed from the perspective of fairness. Urban Climate 2021, 36, 100792 .

AMA Style

Hsueh-Sheng Chang, Qingmu Su. Exploring the coupling relationship of stormwater runoff distribution in watershed from the perspective of fairness. Urban Climate. 2021; 36 ():100792.

Chicago/Turabian Style

Hsueh-Sheng Chang; Qingmu Su. 2021. "Exploring the coupling relationship of stormwater runoff distribution in watershed from the perspective of fairness." Urban Climate 36, no. : 100792.

Research article
Published: 12 January 2021 in Urban Water Journal
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Due to the global climate change and the substantial increase in impervious area, ‘never flooding’ becomes an unrealistic goal. From the perspective of integrated flood management, the government and public need to reach a consensus on disasters and disaster response, and set a reasonable regional protection standard for the city to jointly respond to disasters. This study establishes an operable framework for setting protection standard. The framework uses cost-benefit analysis and data envelopment analysis to maximize the efficiency of water management, so as to compare the differences between different administrative districts under the same return period and between different return period under the same administrative districts, and then determines the best protection standard. The results find that adopting a unified protection standard will not maximize the benefits of resources, but it can be used as a basis for setting flood control standards for different public facilities and building types.

ACS Style

Hsueh-Sheng Chang; Qingmu Su; Takahiro Katayama. Research on establishment of the region flood protection standard - a case of watershed of Dajiaxi, Taiwan. Urban Water Journal 2021, 18, 173 -182.

AMA Style

Hsueh-Sheng Chang, Qingmu Su, Takahiro Katayama. Research on establishment of the region flood protection standard - a case of watershed of Dajiaxi, Taiwan. Urban Water Journal. 2021; 18 (3):173-182.

Chicago/Turabian Style

Hsueh-Sheng Chang; Qingmu Su; Takahiro Katayama. 2021. "Research on establishment of the region flood protection standard - a case of watershed of Dajiaxi, Taiwan." Urban Water Journal 18, no. 3: 173-182.

Original paper
Published: 03 September 2020 in Natural Hazards
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Climate change has significantly increased extreme precipitation and altered regional hydrological cycle, aggravating flood in the watershed. The effective measurement of the risk brought by climate change is an effective way to cope with flood hazard in the future. At the same time, the quality of the simulation of climate change scenarios will also affect the accuracy of flood risk assessment. Therefore, a comprehensive method is needed to measure the long-term disaster risk. However, the current method of subjectively assigning indicator weights is still subjective and difficult to be promoted and applied. So a new model for assessing watershed risk is constructed in this study. Based on the game cross-efficiency data envelopment analysis method and the combination of simulations of climate scenarios, the model can determine the input factors of the assessment and the influencing level of the input factors by using the Principal Component Analysis and Tobit model. The model comprehensively evaluates the flood risk level in the watershed with the results of the simulation of hazard in different climate scenarios, hazard exposure and social vulnerability as input factors, and the degree of disaster loss as the output factor. Results: (1) the hazard, exposure, and social vulnerability are spatially mismatched; (2) the overall risk in the watershed presents such a pattern: upstream (0.751) > downstream (0.418) > midstream (0.362); (3) the long-term flood hazard may be reduced under the influence of climate change. The research is helpful to formulate long-term flood mitigation strategies in the future.

ACS Style

Qingmu Su. Long-term flood risk assessment of watersheds under climate change based on the game cross-efficiency DEA. Natural Hazards 2020, 104, 2213 -2237.

AMA Style

Qingmu Su. Long-term flood risk assessment of watersheds under climate change based on the game cross-efficiency DEA. Natural Hazards. 2020; 104 (3):2213-2237.

Chicago/Turabian Style

Qingmu Su. 2020. "Long-term flood risk assessment of watersheds under climate change based on the game cross-efficiency DEA." Natural Hazards 104, no. 3: 2213-2237.

Research article
Published: 22 April 2020 in Water Environment Research
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Cities face acute shock like hurricanes and floods, and chronic stresses such as droughts, water shortages, urban floods, and urban using water. How cities can create a development model in which the water and environment can coexist to alleviate the problem with urban water has become a common problem faced by countries or cities. Sponge city construction becomes a possible option to meet these challenges. According to the dimensions of pre‐assessment, this article constructs the sponge city assessment indicator which is divided into three aspects: water ecosystem, socioeconomic system, institutional and mechanism system; then the degree of importance and degree of satisfaction are applied as the evaluation framework for the Fuzzy Multiple Criteria to perform the comparison between the government officials and the public regarding the evaluation to analyze group differences. The results are that the difference in the evaluation dimensions between the officials and the public is between 0.8 and 1, but there exists difference in the degree of importance of water management and water use, and in the degree of satisfaction with water development, water efficiency and mechanism. This result is helpful to find the problems and provide a decision basis for the further exploration.

ACS Style

Hsueh‐Sheng Chang; Qingmu Su. Research on constructing sponge city indicator and decision evaluation model with fuzzy multiple criteria method. Water Environment Research 2020, 92, 1910 -1921.

AMA Style

Hsueh‐Sheng Chang, Qingmu Su. Research on constructing sponge city indicator and decision evaluation model with fuzzy multiple criteria method. Water Environment Research. 2020; 92 (11):1910-1921.

Chicago/Turabian Style

Hsueh‐Sheng Chang; Qingmu Su. 2020. "Research on constructing sponge city indicator and decision evaluation model with fuzzy multiple criteria method." Water Environment Research 92, no. 11: 1910-1921.

Journal article
Published: 01 October 2018 in Modern Environmental Science and Engineering
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ACS Style

Su Qingmu; Qingmu Su. Evaluation System of Sponge City Construction in Taiwan Metropolitan System under the Impact of Climate Change. Modern Environmental Science and Engineering 2018, 4, 516 -521.

AMA Style

Su Qingmu, Qingmu Su. Evaluation System of Sponge City Construction in Taiwan Metropolitan System under the Impact of Climate Change. Modern Environmental Science and Engineering. 2018; 4 (6):516-521.

Chicago/Turabian Style

Su Qingmu; Qingmu Su. 2018. "Evaluation System of Sponge City Construction in Taiwan Metropolitan System under the Impact of Climate Change." Modern Environmental Science and Engineering 4, no. 6: 516-521.

Journal article
Published: 19 September 2017 in World Journal of Social Science Research
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The role of high-speed rail network in the metropolitan areas is becoming more and more important, which has become one of the main ways of the city personnel contacts. This paper mainly uses the social network analysis method to revamp the six national metropolitan areas: metropolitan area of the middle reaches of the Yangtze River, metropolitan area of Hachang, metropolitan area of Chengyu, metropolitan area of Yangtze River Delta, metropolitan area of Zhongyuan, metropolitan area of Beibu Gulf make a comparative analysis. The macroscopic and microscopic angles are used to calculate and compare the overall network characteristics, centrality, core-periphery structure and cohesion subgroups. It is mainly due to the fact that the high-speed rail network structure of the six major metropolitan areas needs to be improved. Metropolitan area of the middle reaches of the Yangtze River and metropolitan area of Zhongyuan are relatively good the integrity and the connectivity. Metropolitan area of Yangtze River Delta is the highest utilization rate of resources. Metropolitan area of Hachang is the highest network density. Metropolitan area of Chengyu is outstanding between core and periphery. Metropolitan area of Beibu Gulf network of organizations is broken. Therefore, when layout of high-speed rail infrastructure, we should consider the high-speed rail network resource utilization, balance high-speed rail traffic within the metropolitan areas, thus enhancing the city’s high-speed rail accessibility and convenience.

ACS Style

Qingmu Su; Hsueh-Sheng Chang. A Comparative Analysis of the Characteristics of High-Speed Railway Network in China’s Metropolitan Areas. World Journal of Social Science Research 2017, 4, 318 .

AMA Style

Qingmu Su, Hsueh-Sheng Chang. A Comparative Analysis of the Characteristics of High-Speed Railway Network in China’s Metropolitan Areas. World Journal of Social Science Research. 2017; 4 (4):318.

Chicago/Turabian Style

Qingmu Su; Hsueh-Sheng Chang. 2017. "A Comparative Analysis of the Characteristics of High-Speed Railway Network in China’s Metropolitan Areas." World Journal of Social Science Research 4, no. 4: 318.