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  • Deng, Menghua  (12)
  • English  (12)
  • 1
    Online Resource
    Online Resource
    A differential game for basin ecological compensation mechanism based on cross-regional government-enterprise cooperation
    Elsevier BV ; 2022
    In:  Journal of Cleaner Production Vol. 362 ( 2022-08), p. 132335-
    Details
    In: Journal of Cleaner Production, Elsevier BV, Vol. 362 ( 2022-08), p. 132335-
    Type of Medium: Online Resource
    ISSN: 0959-6526
    URL: Article
    DOI: 10.1016/j.jclepro.2022.132335
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2022
    detail.hit.zdb_id: 1179393-4
    detail.hit.zdb_id: 2029338-0
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  • 2
    Online Resource
    Online Resource
    The impact of yield uncertainty on planting and water-saving decisions for high water consumption crops
    IWA Publishing ; 2022
    In:  Water Supply Vol. 22, No. 6 ( 2022-06-01), p. 5947-5956
    Details
    In: Water Supply, IWA Publishing, Vol. 22, No. 6 ( 2022-06-01), p. 5947-5956
    Abstract: In this study, we propose an optimization-simulation approach to investigate the impact of yield uncertainty on the farmer's decisions for planting high water consumption crops. In addition, the influence of the subsidy programs provided by the government has also been investigated. We consider two different subsidy programs: one is the planting acreage subsidy (PAS) program; the other is the water-saving effort subsidy (WES) program. For each program, we have derived the optimal decisions for the farmer and the government. Furthermore, we investigated the impact of yield uncertainty on the farmer's profit, consumer surplus and social welfare, by numerical experiments. We show that the PAS program can bring greater improvements to the farmer's profit, consumer surplus and social welfare than the WES program, but it leads to higher government expenditure.
    Type of Medium: Online Resource
    ISSN: 1606-9749 , 1607-0798
    URL: Article
    DOI: 10.2166/ws.2022.208
    RVK:
    ZI 6705
    Language: English
    Publisher: IWA Publishing
    Publication Date: 2022
    detail.hit.zdb_id: 2967640-X
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  • 3
    Online Resource
    Online Resource
    A market sharing mechanism for watershed ecological compensation
    IWA Publishing ; 2022
    In:  Water Supply Vol. 22, No. 10 ( 2022-10-01), p. 7565-7575
    Details
    In: Water Supply, IWA Publishing, Vol. 22, No. 10 ( 2022-10-01), p. 7565-7575
    Abstract: This study establishes a market sharing mechanism for watershed ecological compensation between an upstream and downstream government based on the game-theoretical approach. It is found that, in this transboundary market sharing mechanism, the upstream government is encouraged to make more effort to protect the watershed ecosystem. As a result, a market-sharing compensation mechanism can bring Pareto improvements to all stakeholders. Furthermore, the influences of several key factors on the performance of the market sharing mechanism are investigated, which provides theoretical guidance for establishing and implementing such a mechanism in practice.
    Type of Medium: Online Resource
    ISSN: 1606-9749 , 1607-0798
    URL: Article
    DOI: 10.2166/ws.2022.314
    RVK:
    ZI 6705
    Language: English
    Publisher: IWA Publishing
    Publication Date: 2022
    detail.hit.zdb_id: 2967640-X
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  • 4
    Online Resource
    Online Resource
    Risk Assessment of Drought Based on IEAPP-IDM in Qujing, Yunnan Province, China
    Hindawi Limited ; 2016
    In:  Advances in Meteorology Vol. 2016 ( 2016), p. 1-10
    Details
    In: Advances in Meteorology, Hindawi Limited, Vol. 2016 ( 2016), p. 1-10
    Abstract: A new model for risk assessment of drought based on projection pursuit optimized by immune evolutionary algorithm and information diffusion method (IEAPP-IDM) was proposed. Due to the fact that drought risk assessment is a complex multicriteria and multilevel problem, the IEAPP-IDM model can project the multidimensional indicators of samples into one-dimension projection scores; then, the information carried by the projection scores was diffused into drought risk levels; finally, the drought disaster risk estimate was obtained. In the present study, Qujing was employed to assess the drought risk with the proposed model. The results showed that Xuanwei possessed higher risk, while Luliang and Zhanyi possessed lower risk. At the same time, the probability risk of drought in Malong and Luoping was increasing, while the probability risk of drought in in Qilin and Shizong was decreasing. The results obtained by the assessment model are consistent with the actual situation of Qujing and verify the model’s effectiveness. The study can provide scientific reference in drought risk management for Qujing and other places of China.
    Type of Medium: Online Resource
    ISSN: 1687-9309 , 1687-9317
    URL: Article
    DOI: 10.1155/2016/7082467
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2016
    detail.hit.zdb_id: 2486777-9
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  • 5
    Online Resource
    Online Resource
    On the Coupling and Coordination Development between Environment and Economy: A Case Study in the Yangtze River Delta of China
    MDPI AG ; 2022
    In:  International Journal of Environmental Research and Public Health Vol. 19, No. 1 ( 2022-01-05), p. 586-
    Details
    In: International Journal of Environmental Research and Public Health, MDPI AG, Vol. 19, No. 1 ( 2022-01-05), p. 586-
    Abstract: The coupling and coordination development of the environment and economy (CC2E) is one of the most vital issues to sustainable development. This paper adopted the coupling coordination model, projection pursuit algorithm, and random forest model to explore the spatial-temporal evolution and influencing factors of the CC2E in the Yangtze River Delta from 2015 to 2019, respectively. The results showed that: (1) The degree of coupling coordination (DCC) of the CC2E in most cities of the Yangtze River Delta has risen from primary coordination to intermediate coordination. (2) In the spatial perspective, the distribution of DCC is correlated with geographical location. The value of DCC in the western region was significantly lower than that of the eastern cities. (3) The influencing factors results showed that the GDP in the economic subsystem and the annual average concentration of PM2.5 in the environmental subsystem were the most influencing factors of DCC in the Yangtze River Delta. The established index system of CC2E and the measurements of CC2E provide a new idea for how to achieve sustainable development. Meanwhile, this study can provide recommendations for formulating the environmental protection and economic development policy.
    Type of Medium: Online Resource
    ISSN: 1660-4601
    URL: Article
    DOI: 10.3390/ijerph19010586
    Language: English
    Publisher: MDPI AG
    Publication Date: 2022
    detail.hit.zdb_id: 2175195-X
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  • 6
    Online Resource
    Online Resource
    Risk Assessment of Drought, Based on IDM-VFS in the Nanpan River Basin, Yunnan Province, China
    MDPI AG ; 2017
    In:  Sustainability Vol. 9, No. 7 ( 2017-06-27), p. 1124-
    Details
    In: Sustainability, MDPI AG, Vol. 9, No. 7 ( 2017-06-27), p. 1124-
    Type of Medium: Online Resource
    ISSN: 2071-1050
    URL: Article
    DOI: 10.3390/su9071124
    Language: English
    Publisher: MDPI AG
    Publication Date: 2017
    detail.hit.zdb_id: 2518383-7
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  • 7
    Online Resource
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    Study on Vulnerability and Coordination of Water-Energy-Food System in Northwest China
    MDPI AG ; 2018
    In:  Sustainability Vol. 10, No. 10 ( 2018-10-16), p. 3712-
    Details
    In: Sustainability, MDPI AG, Vol. 10, No. 10 ( 2018-10-16), p. 3712-
    Abstract: Water, energy and food are the basic resources for human survival and development. The coordination development of water-energy-food (W-E-F) is of great significance to promote regional sustainable development. In this study, Northwest China (Shaanxi, Gansu, Qinghai, Ningxia, Xinjiang) was selected as the research case, and an evaluation index system was constructed to assess the vulnerability and coordination of water-energy-food (W-E-F) system based on PSR model. Then, a coupled model based on cloud-matter element model and coordination degree model was proposed. The cloud-matter element model was adopted to evaluate the vulnerability level of W-E-F system. The coordination degree model was employed to calculate the coordination degrees of W-E-F system. The results showed that, from 2006 to 2015, the vulnerability levels of W-E-F system in Northwest China were mostly at Level 1. The coordination degrees of W-E-F system belonged to the transitional development level (II) in most years. The vulnerability and coordination problems of W-E-F system in Northwest China were severe. The comprehensive vulnerability index values of W-E-F system were generally on the rise, but far from reaching a good level. Moreover, the comprehensive vulnerability index values and coordination degrees of W-E-F system in Northwest China do not match well. Finally, the countermeasures and suggestions to improve the coordinated development of water resource, energy and food in Northwest China were put forward.
    Type of Medium: Online Resource
    ISSN: 2071-1050
    URL: Article
    DOI: 10.3390/su10103712
    Language: English
    Publisher: MDPI AG
    Publication Date: 2018
    detail.hit.zdb_id: 2518383-7
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  • 8
    Online Resource
    Online Resource
    An ensemble risk assessment model for urban rainstorm disasters based on random forest and deep belief nets: a case study of Nanjing, China
    Springer Science and Business Media LLC ; 2021
    In:  Natural Hazards Vol. 107, No. 3 ( 2021-07), p. 2671-2692
    Details
    In: Natural Hazards, Springer Science and Business Media LLC, Vol. 107, No. 3 ( 2021-07), p. 2671-2692
    Type of Medium: Online Resource
    ISSN: 0921-030X , 1573-0840
    URL: Article
    DOI: 10.1007/s11069-021-04630-y
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2021
    detail.hit.zdb_id: 2017806-2
    SSG: 14
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  • 9
    Online Resource
    Online Resource
    Agricultural Drought Risk Evaluation Based on an Optimized Comprehensive Index System
    MDPI AG ; 2018
    In:  Sustainability Vol. 10, No. 10 ( 2018-09-28), p. 3465-
    Details
    In: Sustainability, MDPI AG, Vol. 10, No. 10 ( 2018-09-28), p. 3465-
    Abstract: In this study, a new optimized comprehensive drought index system (OCDIS) was developed based on pressure-state-response (PSR) and random forest (RF). Then the pressure, state, response, and integrated agricultural drought risk were evaluated according to the synthetic-weight variable fuzzy set (SW-VFS) model. Finally, the countermeasures in terms of pressure, state, and response were discussed. The proposed index has been implemented in Qujing, Yunnan Province, China. The results showed that of the 10 indices included in the OCDIS, the four most important indices for agricultural drought risk management are reservoir storage capacity, precipitation anomaly percentage, soil moisture, and per capita annual income. The pressure risk and response risk of Malong are relatively higher than other counties. The integrated results indicated that most counties of Quijng have moderate drought risk. The assessment results are consistent with the actual situation of Qujing. The proposed model provides a scientific and objective way to develop the risk index system of agricultural drought. This study can potentially assist government agencies with information on the most important drought impacts and provide the basis for science-informed decision-making.
    Type of Medium: Online Resource
    ISSN: 2071-1050
    URL: Article
    DOI: 10.3390/su10103465
    Language: English
    Publisher: MDPI AG
    Publication Date: 2018
    detail.hit.zdb_id: 2518383-7
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  • 10
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    Online Resource
    A Machine Learning Ensemble Approach Based on Random Forest and Radial Basis Function Neural Network for Risk Evaluation of Regional Flood Disaster: A Case Study of the Yangtze River Delta, China
    MDPI AG ; 2019
    In:  International Journal of Environmental Research and Public Health Vol. 17, No. 1 ( 2019-12-19), p. 49-
    Details
    In: International Journal of Environmental Research and Public Health, MDPI AG, Vol. 17, No. 1 ( 2019-12-19), p. 49-
    Abstract: The Yangtze River Delta (YRD) is one of the most developed regions in China. This is also a flood-prone area where flood disasters are frequently experienced; the situations between the people–land nexus and the people–water nexus are very complicated. Therefore, the accurate assessment of flood risk is of great significance to regional development. The paper took the YRD urban agglomeration as the research case. The driving force, pressure, state, impact and response (DPSIR) conceptual framework was established to analyze the indexes of flood disasters. The random forest (RF) algorithm was used to screen important indexes of floods risk, and a risk assessment model based on the radial basis function (RBF) neural network was constructed to evaluate the flood risk level in this region from 2009 to 2018. The risk map showed the I-V level of flood risk in the YRD urban agglomeration from 2016 to 2018 by using the geographic information system (GIS). Further analysis indicated that the indexes such as flood season rainfall, urban impervious area ratio, gross domestic product (GDP) per square kilometer of land, water area ratio, population density and emergency rescue capacity of public administration departments have important influence on flood risk. The flood risk has been increasing in the YRD urban agglomeration during the past ten years under the urbanization background, and economic development status showed a significant positive correlation with flood risks. In addition, there were serious differences in the rising rate of flood risks and the status quo among provinces. There are still a few cities that have stabilized at a better flood-risk level through urban flood control measures from 2016 to 2018. These results were basically in line with the actual situation, which validated the effectiveness of the model. Finally, countermeasures and suggestions for reducing the urban flood risk in the YRD region were proposed, in order to provide decision support for flood control, disaster reduction and emergency management in the YRD region.
    Type of Medium: Online Resource
    ISSN: 1660-4601
    URL: Article
    DOI: 10.3390/ijerph17010049
    Language: English
    Publisher: MDPI AG
    Publication Date: 2019
    detail.hit.zdb_id: 2175195-X
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