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| 广州食物氮足迹估算与分析 | |
| 引用本文： | 李玉炫,王俊能,许振成,张志军.广州食物氮足迹估算与分析[J].广东农业科学,2012,39(6):137-140. |
| 作者姓名： | 李玉炫 王俊能 许振成 张志军 |
| 作者单位： | 1. 中国广州分析测试中心广东省分析测试技术公共实验室,广东广州510070;广东工业大学轻工化工学院,广东广州510006 2. 环境保护部华南环境科学研究所,广东广州,510655 3. 中国广州分析测试中心广东省分析测试技术公共实验室,广东广州,510070 |
| 基金项目： | 国家环保公益性行业科研专项项目 |
| 摘 要： | 估算广州城镇居民食物氮足迹,探讨城镇化与食物氮足迹之间的演化趋势。结果表明:1980—2009年广州市人均食物消费氮足迹随消费模式变化,2009年回归至较合理水平,为3.75 kg(N)/年;目前广州人均食物氮足迹下降至25.98 kg(N)/年,低于美国、德国和荷兰等发达国家的平均水平;广州人均食物氮足迹已越过拐点(PGDP 10 560元),但食物不合理的消费结构仍然存在。氮足迹分析有助于评价食物消费对生态环境构成的压力,为指导转变人类不合理的、环境负荷过大的生产生活方式和制定区域农业可持续发展策略提供依据。 |
| 关 键 词： | 氮足迹 食物消费模式 可持续发展 广州 |
Calculation and analysis of food nitrogen footprint in Guangzhou |
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| LI Yu-xuan , WANG Jun-neng , XU Zhen-cheng , ZHANG Zhi-jun.Calculation and analysis of food nitrogen footprint in Guangzhou[J].Guangdong Agricultural Sciences,2012,39(6):137-140. | |
| Authors: | LI Yu-xuan WANG Jun-neng XU Zhen-cheng ZHANG Zhi-jun |
| Institution: | 1 (1.Guangdong Provincial Public Laboratory of Analysis and Testing Technology,China National Analytical Center,Guangzhou 510070,China;2.Faculty of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou 510655,China; 3.South China Institute of Environmental Sciences,Ministry of Environmental Protection,Guangzhou 510655,China) |
| Abstract: | Food nitrogen footprint in Guangzhou was calculated and its trend was analyzed.The results showed that food nitrogen footprint changed with consumption pattern and some other related factors during 1980—2009.Recently food nitrogen footprint had decreased to 25.98 kg(N)·cap-1·a-1,lower than the average of developed country.Guangzhou has passed its turning point(PGDP 10 560 Yuan),but the consumption structure remained unreasonable.Analysis of food nitrogen footprint was helpful to balance food supply structure,and identified the problems of agricultural sustainable development and provided useful policy proposals for decision-making. |
| Keywords: | nitrogen footprint food consumption model sustainable development Guangzhou |
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