Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa6b09 |
A Fast Track approach to deal with the temporal dimension of crop water footprint | |
Tuninetti, Marta; Tamea, Stefania; Laio, Francesco; Ridolfi, Luca | |
2017-07-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2017 |
卷号 | 12期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy |
英文摘要 | Population growth, socio-economic development and climate changes are placing increasing pressure on water resources. Crop water footprint is a key indicator in the quantification of such pressure. It is determined by crop evapotranspiration and crop yield, which can be highly variable in space and time. While the spatial variability of crop water footprint has been the objective of several investigations, the temporal variability remains poorly studied. In particular, some studies approached this issue by associating the time variability of crop water footprint only to yield changes, while considering evapotranspiration patterns as marginal. Validation of this Fast Track approach has yet to be provided. In this Letter we demonstrate its feasibility through a comprehensive validation, an assessment of its uncertainty, and an example of application. Our results show that the water footprint changes are mainly driven by yield trends, while evapotranspiration plays a minor role. The error due to considering constant evapotranspiration is three times smaller than the uncertainty of the model used to compute the crop water footprint. These results confirm the suitability of the Fast Track approach and enable a simple, yet appropriate, evaluation of time-varying crop water footprint. |
英文关键词 | water-food nexus virtual water trade water footprint uncertainty temporal variability yield patterns |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000404943700003 |
WOS关键词 | VIRTUAL WATER ; FOOD TRADE ; CLIMATE ; CHINA ; VARIABILITY ; POPULATION ; EVOLUTION ; PRODUCTS ; PATTERNS ; GROWTH |
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/15092 |
专题 | 气候变化 |
作者单位 | Politecn Torino, Dept Environm Land & Infrastruct Engn, Turin, Italy |
推荐引用方式 GB/T 7714 | Tuninetti, Marta,Tamea, Stefania,Laio, Francesco,et al. A Fast Track approach to deal with the temporal dimension of crop water footprint[J]. ENVIRONMENTAL RESEARCH LETTERS,2017,12(7). |
APA | Tuninetti, Marta,Tamea, Stefania,Laio, Francesco,&Ridolfi, Luca.(2017).A Fast Track approach to deal with the temporal dimension of crop water footprint.ENVIRONMENTAL RESEARCH LETTERS,12(7). |
MLA | Tuninetti, Marta,et al."A Fast Track approach to deal with the temporal dimension of crop water footprint".ENVIRONMENTAL RESEARCH LETTERS 12.7(2017). |
条目包含的文件 | 条目无相关文件。 |
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