Abstract:

Food is an important part of resident consumption and its changes in quantity and structural can directly reflect the resident living level.Since the 90s of the 20 th century,with the continuous and rapid development of the economy in China,residents are much richer than before,and the urban and rural resident food consumption structure is undergoing a tremendous change,which would have an important impact on agricultural production and food security of our country to some extent.Therefore,the research on resident food consumption change attracts more and more scholars′ academic concerns.Our Chinese scholars mainly research on the changes of resident food consumption from economic value and weight aspects at present.As the volatility of market value and diversity of food consumption pattern,the above research methods can’t objectively measure the resident food consumption structure changes.Therefore,to avoid the above shortcomings,this paper contrasts the quantitative relationship of animal food and vegetarian food separately in weight,energy and emergy forms and quantitatively analyzes the change tendency of Chinese urban and rural resident food consumption based on emergy analysis theory.The research results show that Chinese resident animal food consumption in weight and energy forms were 1190% and 911% of vegetarian diet,while that in emergy form was 7029%.As the values of Chinese resident animal food consumption in weight and energy forms was far below its vegetarian consumption,Chinese urban and rural resident food consumption was still vegetarian diet.But the value of its resident animal food consumption in emergy form was far more than its vegetable consumption,which means that the healthy development of animal husbandry is an important part of guaranteeing resident food consumption and national food security and it would conduce to the succession of diversity and balanced nutrition.At the same time ,Chinese urban and rural resident food consumption also took on duality.In 2010,the values of Chinese urban and rural animal food consumption in emergy form were 110 E+15 sej and 631 E+14 sej.Urban animal food consumption in emergy form was 172 times that of vegetarian diet,while its rural animal food consumption value in emergy form was only 079 times that of vegetarian diet.The difference of food consumption quality between urban and rural residents was about 20 years based on the change tendency of Chinese urban and rural resident food consumption structure,and its difference degree was gradually increasing in recent years.As the farmers have the double identities as both agricultural producers and consumer,the rural resident food consumption is relatively more stable than urban resident food consumption.As it needs more agricultural resources to produce the same quantity of animal food than vegetarian food,the change tendency of Chinese urban and rural resident food consumption will put more pressure on agricultural production and food security