| 中国城镇居民食物氮消费变化分析 |
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| 引用本文： | 王俊能,许振成,彭晓春.中国城镇居民食物氮消费变化分析[J].安徽农业科学,2010,38(19):10332-10334. |
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| 作者姓名： | 王俊能 许振成 彭晓春 |
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| 作者单位： | 1. 环境保护部华南环境科学研究所,广东广州,510655;湖南农业大学资源环境学院,湖南长沙,410128
2. 环境保护部华南环境科学研究所,广东广州,510655 |
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| 基金项目： | 国务院污染源普查专项资金项目 |
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| 摘 要： | 通过分析1981～2007年我国城镇居民家庭人均食物氮年消费量的趋势变化,并进行ARIMA模型时间序列预测分析,以揭示我国城镇化过程中城镇家庭食物氮消费的发展变化规律。结果表明,20世纪80年代后我国城镇居民食物氮年消费量经历了上升—下降—再上升的变化趋势,总体上处于轻微的上升趋势;随着经济快速发展和城市化进程的加快,未来居民食物氮消费量仍然保持持续上升状态,并且具有较大的上升空间。
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| 关 键 词： | 食物消费 氮 秩相关系数 ARIMA模型 城镇居民 中国 |
Change Trend of Chinese Urban Residents' Food-nitrogen Consumption |
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| WANG Jun-neng et al.Change Trend of Chinese Urban Residents' Food-nitrogen Consumption[J].Journal of Anhui Agricultural Sciences,2010,38(19):10332-10334. |
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| Authors: | WANG Jun-neng |
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| Institution: | WANG Jun-neng et al(South China Institute of Environmental Sciences,MEP,Guangzhou,Guangdong 510655) |
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| Abstract: | Change trend of Chinese urban residents' per capita food-nitrogen annual consumption from 1981 to 2007 was analyzed and predicted by using ARIMA time-series model in order to reveal the change law of urban food-nitrogen consumption during the China's urbanization process.Results showed that after 1980s,the annual consumption of Chinese urban residents' food-nitrogen had a change trend of increase-decrease-increase and generally presented as a slight increasing trend;with the acceleration of rapid economic d... |
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| Keywords: | Food consumption Nitrogen Spearman's rank correlation coefficient ARIMA model Urban residents China |
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