西部地区居民食物消费碳排放动态演进及空间关联网络结构特征  

Dynamic Evolution of Carbon Emissions from Food Consumption and Spatial Correlation Network Structure Characteristics of Residents in Western China

作　　者：宋晨雨 付伟 SONG Chenyu;FU Wei(School of Economics and Management,Southwest Forestry University,Kunming 650224,China)

机构地区：[1]西南林业大学经济管理学院,昆明650224

出　　处：《科技和产业》2024年第6期140-146,共7页Science Technology and Industry

基　　金：国家自然科学基金(72264035)。

摘　　要：居民食物消费产生的温室气体是导致温室效应的重要方面,对中国生态环境产生重要的影响。西部地区畜牧业发达,食物资源丰富,研究西部地区居民食物消费碳排放有重要意义。通过各食物类型的碳排放系数,对中国西部地区12个省份(重庆、四川、云南、贵州、西藏、陕西、甘肃、青海、新疆、宁夏、内蒙古、广西)2015—2021年居民的食物消费碳排放进行计算,通过空间关联网络分析法对各个省份食物消费碳排放进行动态演进分析和空间特征分析。结果表明,①2015—2021年西部地区居民食物消费碳排放量有增有减,在2015—2016年大体呈现上升趋势,之后2017—2020年呈现下降趋势,2020—2021年西部地区居民人均食物消费碳排放量大幅度增加;②西部家庭消费间接碳排放整体网络结构特征呈现周期性波动趋势,网络关联数量和网络密度平均值仅为37.3和0.28,西部各省份碳排放空间关联关系紧密程度不高,网络结构相对松散,网络等级差异特征较为明显;③个体网络结构特征中,甘肃、贵州、内蒙古、陕西和四川等省份在西部家庭消费间接碳排放空间关联网络中处于主导地位,对碳排放相关要素的掌控与支配作用较强,西北部的新疆、青海和宁夏位于网络边缘,另外,甘肃、贵州、内蒙古和陕西不仅与其他省份空间关联紧密,还扮演着“中介”角色。The greenhouse gases produced by residents’food consumption are an important aspect of the greenhouse effect and have an important impact on the ecological environment of China.The western region has a well-developed animal husbandry and abundant food resources,so it is of great significance to study the carbon emissions of residents’food consumption in the western region.Based on the carbon emission coefficients of each food type,the carbon emissions of food consumption of residents in 12 provinces in western China(Chongqing,Sichuan,Yunnan,Guizhou,Tibet,Shaanxi,Gansu,Qinghai,Xinjiang,Ningxia,Inner Mongolia and Guangxi)from 2015 to 2021 was calculated.The dynamic evolution and spatial characteristics of carbon emissions from food consumption in each province were analyzed through spatial correlation network analysis.The conditions are as follows.①From 2015 to 2021,the carbon emissions of food consumption of residents in the western region increase and decrease,showing an upward trend in 2015—2016,and then showing a downward trend from 2017 to 2020,the per capita carbon emissions of food consumption of residents in the western region have increased significantly from 2020 to 2021.②The overall network structure characteristics of indirect carbon emissions from household consumption in western China show a cyclical fluctuation trend,with the average number of network associations and network density being only 37.3 and 0.28.The spatial correlation of carbon emissions among the western provinces is not high,the network structure is relatively loose,and the differences of network levels are obvious.③Among the characteristics of individual network structure,Gansu,Guizhou,Inner Mongolia,Shaanxi and Sichuan provinces are in a dominant position in the spatial correlation network of indirect carbon emissions of household consumption in the west,and have a strong control and dominance of carbon emissions-related factors,while Xinjiang,Qinghai and Ningxia in the northwest are located at the edge of the network,an

关 键 词：西部地区 食物消费 碳排放 空间关联网络 

分 类 号：F323.22[经济管理—产业经济]