Urban phosphorus metabolism through food consumption: the case of China
文献类型：期刊论文
| 作者 | Li G.L. ; Yu S. ; Bai X.M. ; Zhang H. ; Zhu Y.G. |
| 刊名 | J. Industrial Ecology
 |
| 出版日期 | 2012 |
| 卷号 | 16期号:/页码:588-599 |
| 中文摘要 | Urbanization has significant impacts on local, regional, and global biogeochemical cycles,including through nutrient enrichment by food consumption, and especially in rapidly urbanizing countries. This article presents a time-series estimation of phosphorus (P) metabolism through food consumption in Chinese cities and examines its relationship to income level during the period 1985–2006. Our results show that approximately 39% of the total dietary P inflow is exported through direct sewage discharge without treatment, 35% is exported via the output of solid human excreta, 7% is exported through sewage sludge landfill, and 19% is left within urban areas. The total inflow of dietary P to urban systems increases with per capita disposable income level. Furthermore, the ratio of dietary P remaining in urban systems to total dietary P inflow, the dietary P remaining in urban systems per capita,and the dietary P remaining per unit urban built-up area respond in an inverted U shape to increases in per capita disposable income; the per capita outflow of dietary P shows a U-shaped response. These relationships may indicate that the impact of urban dietary P on urban environmental systems follows the traditional environmental Kuznets curve, while the environmental impact of urban dietary P on surrounding nonurban ecosystems initially decreases but then increases with the rising income of urban residents. |
| 收录类别 | SCI |
| 公开日期 | 2013-08-30 |
| 源URL | [http://124.16.167.195/handle/335003/1184]  |
| 专题 | 城市环境研究所_城市湿地生态与环境研究组_期刊论文 |
| 推荐引用方式 GB/T 7714 | Li G.L.,Yu S.,Bai X.M.,et al. Urban phosphorus metabolism through food consumption: the case of China[J]. J. Industrial Ecology,2012,16(/):588-599. |
| APA | Li G.L.,Yu S.,Bai X.M.,Zhang H.,&Zhu Y.G..(2012).Urban phosphorus metabolism through food consumption: the case of China.J. Industrial Ecology,16(/),588-599. |
| MLA | Li G.L.,et al."Urban phosphorus metabolism through food consumption: the case of China".J. Industrial Ecology 16./(2012):588-599. |
入库方式： OAI收割
来源：城市环境研究所
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