Study On Multi-footprint Of Residents' Food Consumption In Xiamen City

With the rapid advancement of urbanization and the rapid development of the economy,people's lives are more affluent and the level of consumption of residents continues to increase.Food consumption is the basic consumption of human beings.In the process of rapid urbanization,the structure of food consumption has undergone major changes,and the consumption of animal foods with higher nutritional value has increased.The animal food of unit mass consumes more natural resources than the plant food in the production and processing,and has a greater impact on the ecological environment.Coupled with the influx of large numbers of people into the city,the total consumption of food has increased rapidly.Therefore,the impact of food consumption on the natural environment in the process of rapid urbanization is gradually increasing.This study takes Xiamen as a case city to study the changing characteristics of urban residents'food consumption patterns in urbanization process,and evaluate the environmental effects of food consumption patterns from carbon footprint,water footprint and ecological footprint,and then construct a comprehensive evaluation model based on entropy weight method to reveal The combined environmental effects of food consumption.Finally,the influencing factors of food consumption footprint are analyzed by SPSS software,and the recommendations of sustainable consumption of residents are proposed based on the footprint analysis.The results show that:?1?From 1990 to 2016,the annual per capita food consumption of Xiamen residents was generally declining,from 324.28Kg.a^-1 in 1990 to 296.25Kg.a^-1 in 2016,a decrease of 8.64%,while food consumption The total amount increased from 528,800 tons in 1990 to 1,611,300 tons in 2016,and the overall growth was nearly 1.2 times.The proportion of consumption of plant foods in the food consumption structure of residents decreased,and the proportion of consumption of animal foods increased.?2?From 1990 to 2016,the proportion of animal food such as meat and egg milk in the food consumption of residents increased continuously,which made the average carbon footprint,water footprint and ecological footprint of food consumption of Xiamen residents all show an upward trend.The Per capita carbon emissions from food consumption increased from 396.33 Kg in 1990 to 440.34 Kg in 2016,an increase of 11.1%;the per capita water footprint of food consumption increased from 462.11 m³ in 1990 to 489.78 m³ in 2016,an increase of 6%;the per capita ecological footprint of food consumption increased from 0.056 hm² in 1990 to 0.069 hm²in 2016,an increase of 23.21%.?3?The total carbon emissions from food consumption increased from 645,300 tons in1990 to 1,762,100 tons in 2016,an increase of 1.67 times;The total water footprint of food consumption increased from 7.52×10⁸ m³ in 1990 to 19.20×10⁸ m³ in 2016,an increase of 1.55times;The total ecological footprint of food consumption increased from 0.92×10⁵hm² in 1990 to2.74×10⁵hm² in 2016,an increase of 1.98 times.?4?The comprehensive evaluation research based on entropy weight method shows that the average annual per capita food consumption of Xiamen City increased by 1.07 times during1990-2016,and the total food consumption comprehensive footprint increased by 33.77 times,with an average annual increase of 1.3 times.?5?There is a significant correlation between the multi-footprint of food consumption in Xiamen and per capita GDP,per capita disposable income,food consumption expenditure,and Engel coefficient,which were positively correlated with per capita GDP,per capita disposable income,and food consumption expenditure.The Engel coefficient is negatively correlated and weakly correlated with the price index.