scholarly journals URBAN METABOLISM AS AN APPROACH TO ACHIEVE RESOURCE EFFICIENT COMMUNITIES: A CASE STUDY OF AL SHAKHLOBA, BURULLUS LAKE, KAFR EL SHEIKH, EGYPT

2021 ◽  
Author(s):  
ALSHAIMAA ELABASY ◽  
MOHAMED IBRAHIM
Keyword(s):  
Urban Metabolism ◽  
Burullus Lake

scholarly journals Analysis of Land-Use Emergy Indicators Based on Urban Metabolism: A Case Study for Beijing

2015 ◽  
Vol 7 (6) ◽  
pp. 7473-7491 ◽  
Author(s):  
Qing Huang ◽  
Xinqi Zheng ◽  
Yecui Hu
Keyword(s):  
Land Use ◽  
Urban Metabolism

Erratum: Estimating the urban metabolism of Canadian cities: Greater Toronto Area case study

2003 ◽  
Vol 30 (4) ◽  
pp. 794-794 ◽  
Author(s):  
Halla R Sahely ◽  
Shauna Dudding ◽  
Christopher A Kennedy
Keyword(s):  
Urban Metabolism ◽  
Greater Toronto Area

Urban metabolism process based on emergy synthesis：a case study of Beijing

2013 ◽  
Vol 33 (16) ◽  
pp. 5078-5089 ◽  
Author(s):  
刘耕源 LIU Gengyuan ◽  
杨志峰 YANG Zhifeng ◽  
陈彬 CHEN Bin
Keyword(s):  
Urban Metabolism

scholarly journals Urban metabolism based on emergy and slack based model: A case study of Beijing, China

2014 ◽  
Vol 25 (1) ◽  
pp. 113-123 ◽  
Author(s):  
Tao Song ◽  
Jianming Cai ◽  
Hui Xu ◽  
Yu Deng ◽  
Fangqu Niu ◽  
...  
Keyword(s):  
Urban Metabolism ◽  
Beijing China

scholarly journals Urban Metabolism of Food-Sourced Nitrogen among Different Income Households: A Case Study Based on Large Sample Survey in Xiamen City, China

Foods ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2842
Author(s):  
Li Xing ◽  
Tao Lin ◽  
Xiongzhi Xue ◽  
Jiakun Liu ◽  
Meixia Lin ◽  
...  
Keyword(s):  
Food Consumption ◽  
Structural Equation ◽  
Flow Analysis ◽  
Material Flow Analysis ◽  
Pollutant Emissions ◽  
Sample Survey ◽  
Urban Metabolism ◽  
Nitrogen Emissions ◽  
Xiamen City

Food consumption is fundamental for urban households if they are to sustain production and daily life. Nitrogen resulting from food consumption has significantly contributed to pollutant emissions in urban ecosystems. Taking Xiamen city, a rapid urbanizing area of southeast China as a case study, we evaluated the food-sourced nitrogen consumption of households based on a large simple onsite questionnaire survey, as well as differences between households in the consumption of plant-based and animal-based foods. A material flow analysis (MFA) was conducted to simulate the urban metabolism of food-sourced nitrogen and environmental emissions among different income groups. The impacts of household attributes, plant-based food consumption, and animal-based food consumption on environmental nitrogen emissions were examined with a structural equation model (SEM). Our results show that the surveyed households’ diets were more plant-based and less animal-based. Aquatic products and livestock were the source of 43.7% of food-sourced nitrogen, and 84.5% of the food-sourced nitrogen was discharge into the environment through direct discharge and waste treatment. Soil, water, and air emissions accounted for 62.8%, 30.1%, and 7.1% of the food-sourced nitrogen, respectively. Household income, household size, and household area are all associated with accelerating increases of nitrogen emissions released into the environment, though middle-income group households have the highest food-sourced environmental nitrogen emissions. On this basis, we discuss how to better manage the urban metabolism of food-sourced nitrogen, so as to improve urban household consumption, lower nitrogen emissions, and improve food security.

scholarly journals Urban Metabolism

2021 ◽  
pp. 85-114
Author(s):  
Sybil Derrible ◽  
Lynette Cheah ◽  
Mohit Arora ◽  
Lih Wei Yeow
Keyword(s):  
Hybrid Approach ◽  
First Century ◽  
Urban Metabolism ◽  
Practical Case ◽  
Early Twenty ◽  
The World ◽  
History Of ◽  
City State ◽  
The City

AbstractUrban metabolism (UM) is fundamentally an accounting framework whose goal is to quantify the inflows, outflows, and accumulation of resources (such as materials and energy) in a city. The main goal of this chapter is to offer an introduction to UM. First, a brief history of UM is provided. Three different methods to perform an UM are then introduced: the first method takes a bottom-up approach by collecting/estimating individual flows; the second method takes a top-down approach by using nation-wide input–output data; and the third method takes a hybrid approach. Subsequently, to illustrate the process of applying UM, a practical case study is offered using the city-state of Singapore as an exemplar. Finally, current and future opportunities and challenges of UM are discussed. Overall, by the early twenty-first century, the development and application of UM have been relatively slow, but this might change as more and better data sources become available and as the world strives to become more sustainable and resilient.

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