Quantifying the water footprint of an urban agglomeration in developing economy

Dagani, Koteswara Rao; Chandrasekharam, D.

doi:10.1016/j.scs.2019.101686

Cited by 14 publications

(10 citation statements)

References 24 publications

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“…Dietary WF assessments have been conducted at global level [48,49], at national level with global coverage [50,51], continental or regional scale [45,52], individual country level [53][54][55][56][57][58][59][60][61][62][63], river basin level [64], provincial level [61], city level up to inner-city/borough level [34,[65][66][67][68][69][70][71] and for specific socioeconomic groups [65,[72][73][74]. Harris et al [33] also provide a selected overview of relevant studies.…”

Section: Geographical Coverage Data Used and Modelling Approachesmentioning

confidence: 99%

“…Including high quantities of pond-raised aquatic animals, which are very blue water-intensive foods [50], or specific nuts [47], can however again increase the total dietary WFs. In addition, existing dietary WFs in western countries as well as richer socioeconomic classes in transition and developing countries are generally higher than dietary WFs of recommended healthy diets and should therefore be reduced [45,65,69]. On the other hand, dietary WFs of poorer sections of the population in transition and developing countries will increase when they opt for healthy diets containing more animal products [50].…”

Section: Full Comprehensive Sustainability Assessmentsmentioning

confidence: 99%

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Water Resources for Sustainable Healthy Diets: State of the Art and Outlook

Vanham

2020

Water

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Sustainable healthy diets are high on the research and policy agendas. One of the crucial resources to provide such diets are water resources. This paper provides a brief overview of the current research state regarding this topic, with a focus on the water footprint concept, as latter quantifies water use along a supply chain. The water footprint (WF) quantifies blue and green water consumption, as both these water resources are essential for food and energy production as well as for the environment. Different kinds of information are embedded in a dietary WF and different data sources and modelling approaches exist, leading to WF dietary amounts that are not always directly comparable. A full sustainability assessment of a dietary WF encompasses three components: (1) an equity assessment of the total WF amount; (2) an efficiency assessment for each food item in the diet as well as (3) an impact assessment (blue water stress and green water scarcity) for each food item in the diet. The paper concludes with an outlook on future research on the topic, listing the following points: (1) future clarity in system boundary and modelling assumptions, with comparison of results between different approaches; (2) full sustainability assessments including all three components; (3) dietary footprint family assessments with the WF as one member; (4) WF assessments for multiple dietary regimes with support to the development of local dietary guidelines and (5) assessment of the synergies with LCA-based mid-point (scarcity-weighted WF) and end-point (especially human health) indicators and evaluation of the validity and empirical significance of these two indicators

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Section: Geographical Coverage Data Used and Modelling Approachesmentioning

confidence: 99%

Section: Full Comprehensive Sustainability Assessmentsmentioning

confidence: 99%

Water Resources for Sustainable Healthy Diets: State of the Art and Outlook

Vanham

2020

Water

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“…Liu et al (2018) investigated the Beijing-Tianjin-Hebei urban agglomeration and found that the extreme growth effect of urban agglomerations has a destructive effect on regional ecological security system, and they put forward the necessity of scientific prediction. There are many research results on urban agglomerations in other countries, such as Koteswara Rao and Chandrasekharam (2019), who aimed at the HMDA region of India, where the population is rapidly growing, and evaluated the water footprint of this region based on water resource utilization; Tan and Hamid (2014) studied the urban ecological research and urban sustainability from the perspective of urban environmental construction in Singapore; Scholars have combined ecological security with different disciplines to expand the scope of ecological security research, and to research the ecological security of urban agglomerations.…”

Section: Urban Agglomeration Ecological Securitymentioning

confidence: 99%

Dynamic assessment and early warning of ecological security: a case study of the Yangtze river urban agglomeration

et al. 2020

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Ecological security is vital to the survival of human beings and critical to the sustainable development of socioeconomic environment. In view of the deficiencies of the static assessment of ecological security, in this paper ,a dynamical evaluation on the ecological security of urban agglomerations is conducted by utilizing an index system developed from the Driving Force-Pressure-State-Response model. Further, an empirical study is carried out for the Yangtze River Urban Agglomeration to explore the ecological security alarms and change rules: Incorporating the statistical data from 2005 to 2017 into the investigation, the combined weight method is applied to calculate the weight of ecological safety over ecological security contribution, and the Moran's I index is implemented to analyze the changes in the spatial pattern. The results show that (1) The ecological security index of the Yangtze River Urban Agglomeration exhibits a smaller fluctuation primarily caused by the transformation of economic development mode, and the overall ecological security has been improved since 2005 from less safe to security level in general. (2) Spatial differences exist between North and South as well as between urban agglomerations, and the overall ecological security is improved due to ecological protection measures and industrial structure adjustment, and (3) The levels of early warning for these cities in the Yangtze River Urban Agglomeration differ, Varying between medium level and severe level. Furthermore, It is also found that human activities greatly impact the ecological security, and the intensity of land development is the greatest threat.

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“…Confronting with more south-south trade in the new phase of globalisation, China has also relocated a part of its production activities to other developing countries (Meng et al 2018). Given that water shortage and water pollution are crucial constraints for economic prosperity, China's water quantity and quality require further investigation (Rao and Chandrasekharam 2019).…”

Section: Introductionmentioning

confidence: 99%

Quantity and quality of China's water from demand perspectives

Shan

Zhang

et al. 2019

Environ. Res. Lett.

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China is confronted with an unprecedented water crisis regarding its quantity and quality. In this study, we quantified the dynamics of China's embodied water use and chemical oxygen demand (COD) discharge from 2010 to 2015. The analysis was conducted with the latest available water use data across sectors in primary, secondary and tertiary industries and input-output models. The results showed that (1) China's water crisis was alleviated under urbanisation. Urban consumption occupied the largest percentages (over 30%) of embodied water use and COD discharge, but embodied water intensities in urban consumption were far lower than those in rural consumption.(2) The 'new normal' phase witnessed the optimisation of China's water use structures. Embodied water use in light-manufacturing and tertiary sectors increased while those in heavy-manufacturing sectors (except chemicals and transport equipment) dropped.(3) Transformation of China's international market brought positive effects on its domestic water use. China's water use (116-80 billion tonnes (Bts)) 9 and COD discharge (3.95-2.22 million tonnes (Mts)) embodied in export tremendously decreased while its total export values (11-25 trillion CNY) soared. Furthermore, embodied water use and COD discharge in relatively low-end sectors, such as textile, started to transfer from international to domestic markets when a part of China's production activities had been relocated to other developing countries.

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Quantifying the water footprint of an urban agglomeration in developing economy

Abstract: Sustainable conservation of natural resources has become a primary concern for urban cities, globally as they are centers of consumption and economy. Due to population growth, cities depend more on imports of food, energy, water, and services from all over the globe, and

Cited by 14 publications

References 24 publications

Water Resources for Sustainable Healthy Diets: State of the Art and Outlook

Water Resources for Sustainable Healthy Diets: State of the Art and Outlook

Dynamic assessment and early warning of ecological security: a case study of the Yangtze river urban agglomeration

Quantity and quality of China's water from demand perspectives

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