Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa83f0 |
An extended environmental input-output lifecycle assessment model to study the urban food-energy-water nexus | |
Sherwood, John; Clabeaux, Raeanne; Carbajales-Dale, Andmichael | |
2017-10-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We developed a physically-based environmental account of US food production systems and integrated these data into the environmental input-output life cycle assessment (EIO-LCA) model. The extended model was used to characterize the food, energy, and water (FEW) intensities of every US economic sector. The model was then applied to every Bureau of Economic Analysis metropolitan statistical area (MSA) to determine their FEW usages. The extended EIO-LCA model can determine the water resource use (kGal), energy resource use (TJ), and food resource use in units of mass (kg) or energy content (kcal) of any economic activity within the United States. We analyzed every economic sector to determine its FEW intensities per dollar of economic output. This data was applied to each of the 382 MSAs to determine their total and per dollar of GDP FEW usages by allocating MSA economic production to the corresponding FEW intensities of US economic sectors. Additionally, a longitudinal study was performed for the Los Angeles-Long Beach-Anaheim, CA, metropolitan statistical area to examine trends from this singular MSA and compare it to the overall results. Results show a strong correlation between GDP and energy use, and between food and water use across MSAs. There is also a correlation between GDP and greenhouse gas emissions. The longitudinal study indicates that these correlations can shift alongside a shifting industrial composition. Comparing MSAs on a per GDP basis reveals that central and southern California tend to be more resource intensive than many other parts of the country, while much of Florida has abnormally low resource requirements. Results of this study enable a more complete understanding of food, energy, and water as key ingredients to a functioning economy. With the addition of the food data to the EIO-LCA framework, researchers will be able to better study the food-energy-water nexus and gain insight into how these three vital resources are interconnected. Applying this extended model to MSAs has demonstrated that all three resources are important to a MSA's vitality, though the exact proportion of each resource may differ across urban areas. |
英文关键词 | EIO-LCA LCA life cycle assessment urban sustainability FEW nexus food-energy-water metropolitan statistical area |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000411925900003 |
WOS关键词 | EMISSIONS ; GUIDE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/37625 |
专题 | 气候变化 |
作者单位 | Clemson Univ, Dept Environm Engn & Earth Sci, Clemson, SC 29634 USA |
推荐引用方式 GB/T 7714 | Sherwood, John,Clabeaux, Raeanne,Carbajales-Dale, Andmichael. An extended environmental input-output lifecycle assessment model to study the urban food-energy-water nexus[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(10). |
APA | Sherwood, John,Clabeaux, Raeanne,&Carbajales-Dale, Andmichael.(2017).An extended environmental input-output lifecycle assessment model to study the urban food-energy-water nexus.ENVIRONMENTAL RESEARCH LETTERS,12(10). |
MLA | Sherwood, John,et al."An extended environmental input-output lifecycle assessment model to study the urban food-energy-water nexus".ENVIRONMENTAL RESEARCH LETTERS 12.10(2017). |
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