Appraisal and strategic thinking on food security status of China
【Abstract】Based on internationally accepted concept of food security, this paper appraised the status, trends and problems of food security of China by constructing indices representing supply, distribution, consumption, utilization ratio, result, stability, sustainability and regulation ability, to appraise the status, trends and problems of food security of China. Result shows that food security of China is at high level and has kept rising during the past years. China has advantages in food security, which are manifested by the facts that many indices such as rate of self-sufficiency, per capita supply of energy and protein are higher than those of world average level, and even the average level of the developed nations. Main problems of food security of China are inappropriate composition of nutrition and unsustainability of environment. Further improvement of food security could be achieved by adjusting production structure, employing more environment-friendly way of production, emphasizing management of consumption, reducing overconsumption and losses, lowering rate of storage appropriately.
【Keywords】 food security; index; food self-sufficiency; sustainability;
(Translated by PENG Yang)
. 1Xinhua Net. http://news.xinhuanet.com/politics/ (2013-07-22). [^Back]
. 1 An alternative indicator is residents’ income per capita. However, it is not adopted because the urban and rural residents’ income is measured by the disposable income of town residents and the net income of rural residents per capita, both of which use different statistical caliber and are not suited to be compared with international counterparts. [^Back]
. 2 In America, there is a considerable proportion of food to be used in processing ethanol. [^Back]
. 1 Fao,Methodology for the Measurement of Food Deprivation:Updating the Minimum Dietary Energy Requirements(httlp://www.fao.org/fileadmin/templates/ess/documents/food_securily_statistics/metadata/Undernourishment_metho dology.pdf,Rome,October,2008). [^Back]
. 2 The data are mainly composed of grain and soybean. [^Back]
. 1 In order to eliminate the influence of outliers in calorie intake, this study, referring to Zhu Xi et al. (2011), winsorizes the figures that stay at the level of +1%, that is, to make all figures that are less than 1% (more than 99%) equal 1% (99%). Zhu, X., Shi, Q., & Gai, Q. Economic Research Journal (经济研究), (5) (2011). [^Back]
. 1 Index calculation involves much data from the Food Balance Sheet issued by FAO. After the comparison with the outputs of main farm produce released by Chinese authority, only a little gap is identified between them. [^Back]
. 2 In some similar studies, the method of factor analysis is adopted to get weight, which is actually the reflection of the share of factor (indicator) in the changing process of data, thus the value of weight is related to the variation of data. In reality, however, the variation and the importance of indicators pertinent to food security are not consistent with each other. Therefore, the weight obtained by factor analysis fails to reflect the real case. As a result, after trial calculation and comparison, this study gives up the seemingly objective weighting method eventually. [^Back]
. 1 Lower than 11.5%, an estimation of FAO. [^Back]
. 1 The specific goal is that the production capacity of food and grain should reach 540 billion kg and 475 billion kg respectively in 2020, and the food consumption per capita should be 395 kg. [^Back]
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