
Research on individual food waste behavior from the perspective of North-South differences: Take the dining situation of students in university canteens as an example
QIAN Long, LI Feng, QIAN Zhuang, WANG Ling-en
JOURNAL OF NATURAL RESOURCES ›› 2021, Vol. 36 ›› Issue (3) : 552-566.
Research on individual food waste behavior from the perspective of North-South differences: Take the dining situation of students in university canteens as an example
Eating habits has always been considered as an important factor in food waste. This paper takes 29 universities, all in different provincial-level regions, as study cases to explore the factors that affect students' wasting behavior. Based on a questionnaire survey of 9192 college students, this paper focuses on the impact of North-South differences on individual food waste behavior, and attempts to answer: Southerners and Northerners, who are more likely to waste food, who waste more food? The results show that compared with the northern native college students, the probability of food waste in the students of the southern region is higher, and the food waste and food waste rate of the students of the southern origins in the college cafeteria are higher than those of the northern students. In order to verify whether the difference in diet patterns between the "rice" model in the south and the "wheat" model in the north is the main reason for the above phenomenon, this paper confirms that the difference between the north and the south diet patterns is the key reason for the fact that the southerners waste more food than the northerners through the mediation effect model. This paper further matches the individual's North-South origin and the North-South position of the colleges and universities. Based on the mode of "Southern students studying in the South", we found that the "Southern tudents going to school in the North" mode has a lower probability of food waste, waste amount and food waste rate. However, under the "Northern students going to school in the South" mode, individuals did not have a low probability of food waste, the weight of waste and food waste rate. Therefore, this paper confirms that the southerners are more wasteful of food than the northerners. And it is proved that the mainstream diet pattern in the north and the south is the leading driving force to the difference in waste.
food waste / college canteen / North-South difference / mainstream diet {{custom_keyword}} /
Table 1 Sample distribution表1 样本分布情况 |
序号 | 省(市、自治区) | 学校 | 样本量/份 | 序号 | 省(市、自治区) | 学校 | 样本量/份 |
---|---|---|---|---|---|---|---|
东部 | 3764 | 4 | 湖南 | 湖南大学 | 325 | ||
1 | 上海 | 上海财经大学 | 278 | 5 | 山西 | 山西财经大学 | 306 |
2 | 江苏 | 南京邮电大学 | 596 | 6 | 吉林 | 吉林大学 | 360 |
3 | 浙江 | 湖州师范学院 | 304 | 7 | 黑龙江 | 哈尔滨工业大学 | 296 |
4 | 北京 | 北京师范大学 | 326 | 西部 | 3452 | ||
5 | 天津 | 天津财经大学 | 300 | 1 | 陕西 | 陕西师范大学 | 317 |
6 | 河北 | 河北大学 | 308 | 2 | 甘肃 | 兰州理工大学 | 330 |
7 | 山东 | 山东财经大学 | 300 | 3 | 宁夏 | 宁夏大学 | 300 |
8 | 辽宁 | 沈阳理工大学 | 350 | 4 | 青海 | 青海师范大学 | 300 |
9 | 广东 | 深圳大学 | 348 | 5 | 内蒙古 | 内蒙古工业大学 | 300 |
10 | 福建 | 厦门理工学院 | 331 | 6 | 新疆 | 石河子大学 | 300 |
11 | 海南 | 海南大学 | 323 | 7 | 四川 | 四川农业大学 | 329 |
中部 | 1976 | 8 | 重庆 | 重庆理工大学 | 365 | ||
1 | 安徽 | 宿州学院 | 300 | 9 | 贵州 | 贵州大学 | 309 |
2 | 江西 | 江西农业大学 | 298 | 10 | 广西 | 广西大学 | 302 |
3 | 湖北 | 武汉轻工大学 | 91 | 11 | 云南 | 西南林业大学 | 300 |
Table 2 Variable definition and descriptive analysis表2 变量定义及描述性分析 |
变量名称 | 变量定义 | 观测值/个 | 均值 | 标准差 |
---|---|---|---|---|
食物浪费行为 | 本餐次是否有浪费:1=有;0=没有 | 9128 | 0.74 | 0.44 |
食物浪费量 | 本餐次各类食物剩余重量加总/g | 9128 | 61.03 | 73.71 |
食物浪费率 | 本餐次各类食物剩余重量加总×100/此次就餐各类食物的标准重量加总/% | 9121 | 12.13 | 14.55 |
南北方籍贯 | 被调查人家庭所在地:1=南方;0=北方 | 9157 | 0.54 | 0.50 |
性别 | 1=男;0=女 | 9191 | 0.52 | 0.50 |
年龄 | 岁 | 9169 | 21.25 | 2.33 |
学历 | 1=研究生;0=本科生 | 9169 | 0.19 | 0.39 |
BMI指数 | BMI=公斤数体重/身高米数的平方 | 9161 | 20.68 | 2.81 |
是否独生子女 | 1=是独生子女;0=不是独生子女 | 9161 | 0.43 | 0.49 |
民族 | 1=汉族;0=少数民族 | 9146 | 0.90 | 0.30 |
接触节粮宣传的频率 | 1=较多接触;0=较少接触 | 9158 | 0.41 | 0.49 |
家庭人口规模 | 1=3人及以下;2=4~6人;3=7人及以上 | 8564 | 1.67 | 0.53 |
家庭经济水平 | 学生每月生活费支出/元:1= ≤1000;2=1000~1500;3=>1500 | 9126 | 1.74 | 0.76 |
餐次 | 1=午餐;0=晚餐 | 9099 | 0.55 | 0.50 |
就餐持续时间 | 此次就餐持续多久/分钟 | 9164 | 1.55 | 0.57 |
一同就餐人数 | 和被调查人一起来食堂就餐人数/人 | 8473 | 1.89 | 0.78 |
餐前饭菜重量 | 被调查人此次就餐饭菜重量/g | 8511 | 524.54 | 155.38 |
餐盘类型 | 1=合成餐盘;0=分装餐盘 | 8972 | 0.66 | 0.47 |
饭菜口味满意度 | 3=较为满意;2=一般满意;1=不太满意 | 8486 | 2.40 | 0.59 |
是否东部 | 高校所在区位:1=东部;0=非东部 | 9192 | 0.41 | 0.49 |
是否中部 | 高校所在区位:1=中部;0=非中部 | 9192 | 0.21 | 0.41 |
南北方区位 | 高校所在区位:1=南方;0=北方 | 9192 | 0.49 | 0.50 |
Table 3 Descriptive analysis表3 描述性分析 |
分组 | 是否有 食物浪费/% | 每人每餐 食物浪费量/g | 每人每餐 食物浪费率/% |
---|---|---|---|
南方人 | 74.36 | 67.08 | 13.51 |
北方人 | 73.15 | 54.10 | 10.56 |
Table 4 Correlation between North-South and food waste behavior表4 南北方籍贯与食物浪费行为 |
变量 | 是否有食物浪费 | 食物浪费量 | 食物浪费率 |
---|---|---|---|
南北方籍贯 | 0.065** | 17.102*** | 3.450*** |
(0.031) | (2.057) | (0.407) | |
性别 | -0.263*** | -29.554*** | -5.947*** |
(0.034) | (2.187) | (0.433) | |
年龄 | 0.005 | 0.733 | 0.186 |
(0.009) | (0.631) | (0.125) | |
学历 | -0.147*** | -7.643** | -2.004*** |
(0.056) | (3.730) | (0.739) | |
BMI指数 | -0.034*** | -2.472*** | -0.479*** |
(0.006) | (0.387) | (0.077) | |
是否独生子女 | 0.007 | 0.612 | 0.222 |
(0.043) | (2.832) | (0.561) | |
民族 | -0.081 | 2.833 | 0.449 |
(0.053) | (3.366) | (0.666) | |
接触节粮宣传的频率 | -0.057* | -5.048** | -0.843** |
(0.031) | (2.058) | (0.408) | |
家庭人口规模 | 0.028 | 2.883 | 0.457 |
(0.040) | (2.615) | (0.518) | |
家庭经济水平 | 0.114*** | 6.648*** | 1.377*** |
(0.021) | (1.380) | (0.273) | |
餐次 | 0.022 | 4.552** | 0.778* |
(0.031) | (2.043) | (0.404) | |
就餐持续时间 | 0.131 | 1.760 | 0.402 |
(0.028) | (1.796) | (0.356) | |
一起就餐人数 | 0.029 | 2.871** | 0.512** |
(0.020) | (1.300) | (0.257) | |
餐前饭菜重量 | 0.001*** | 0.143*** | 0.006*** |
(0.000) | (0.007) | (0.001) | |
餐盘形式 | -0.017 | 3.642* | 0.823* |
(0.033) | (2.146) | (0.425) | |
饭菜口味满意度 | -0.185*** | -19.699*** | -3.694*** |
(0.027) | (1.713) | (0.340) | |
东部 | 0.036 | 13.596*** | 2.596*** |
(0.037) | (2.395) | (0.474) | |
中部 | -0.002 | -2.812 | -0.616 |
(0.041) | (2.713) | (0.537) | |
常数 | 0.752*** | 28.246 | 16.001*** |
(0.264) | (17.664) | (3.499) | |
sigma | — | 87.294*** | 17.317*** |
(0.829) | (0.165) | ||
LR chi2 | 416.03*** | 946.49*** | 608.68*** |
Pseudo R2 | 0.045 | 0.012 | 0.011 |
观测值 | 8157 | 8157 | 8166 |
注:***、**、*分别表示1%、5%、10%的显著性水平,括号内为标准误,下同。 |
Table 5 Test of the mechanism of action of the North-South diet model: Mediating effect model表5 南北饮食模式的作用机制检验:中介效应模型 |
变量 | (1) 南北方区位 | (2) 是否有食物浪费 | (3) 南北方区位 | (4) 食物浪费量 | (5) 食物浪费率 |
---|---|---|---|---|---|
南北方籍贯 | 1.526*** | -0.037 | 1.119*** | 5.870** | 1.186** |
(0.033) | (0.037) | (0.023) | (2.434) | (0.482) | |
南北方区位 | — | 0.200*** | — | 21.096*** | 4.257*** |
(0.038) | (2.472) | (0.489) | |||
常数 | 0.545** | 0.635 | 0.377** | 15.545 | 13.411 |
(0.277) | (0.265) | (0.177) | (17.646) | (3.494) | |
其他变量 | 已控制 | 已控制 | 已控制 | 已控制 | 已控制 |
sigma | — | — | 0.769 | 86.870 | 17.228 |
(0.010) | (0.824) | (0.164) | |||
LR chi2 | 2993.28*** | 444.56*** | 3261.42*** | 1019.15*** | 684.24*** |
Pseudo R2 | 0.266 | 0.048 | 0.196 | 0.013 | 0.012 |
观测值 | 8180 | 8157 | 8180 | 8157 | 8166 |
Table 6 Further verification表6 进一步验证 |
变量 | 是否有食物浪费 | 食物浪费量 | 食物浪费率 |
---|---|---|---|
南北方籍贯 | 0.179* | 22.048*** | 3.557*** |
(0.094) | (6.319) | (1.255) | |
南方人在北方求学 | -0.176*** | -18.168*** | -3.762*** |
(0.051) | (3.348) | (0.662) | |
北方人在南方求学 | 0.030 | 12.300 | 1.171 |
(0.110) | (7.372) | (1.464) | |
北方人在北方求学 | 0.107 | -0.290** | -0.958** |
(0.100) | (6.737) | (1.338) | |
常数 | 0.566** | 16.412 | 14.715*** |
(0.285) | (18.987) | (3.765) | |
其他变量 | 已控制 | 已控制 | 已控制 |
sigma | — | 86.967*** | 17.258*** |
(0.825) | (0.164) | ||
LR chi2 | 438.88*** | 997.89*** | 655.72*** |
Pseudo R2 | 0.047 | 0.013 | 0.012 |
观测值 | 8157 | 8157 | 8166 |
[1] |
从农业文化遗产保护看零饥饿目标实现. http://f.china.com.cn/2018-10/16-241:evelopment Research,2012/conten-241:evelopment Research,2012t_66458997.htm, 2018-10-16.
[To achieve the goal of zero hunger from the perspective of agricultural cultural heritage protection. http://f.china.com.cn/2018-10/16-241:evelopment Research,2012/conten-241:evelopment Research,2012t_66458997.htm, 2018-10-16.]
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[2] |
全球挨饿人口持续增加,2030年消除饥饿愈发艰难. http://www.cutv.com/guoji/2018-9-12/1536716409689.shtml, 2018-09-12.
[The number of hungry people in the world continues to increase, and it will be more and more difficult to eradicate hunger in 2030. http://www.cutv.com/guoji/2018-9-12/1536716409689.shtml, 2018-09-12]
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[3] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[4] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[5] |
高利伟, 成升魁, 曹晓昌, 等. 食物损失和浪费研究综述及展望. 自然资源学报, 2015,30(3):523-536.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[6] |
曹芳芳, 黄东, 俊峰武, 等. 小麦收获损失及其主要影响因素: 基于1135户小麦种植户的实证分析. 中国农村观察, 2018, (2):75-87.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[7] |
王灵恩, 成升魁, 刘刚, 等. 中国食物浪费研究的理论与方法探析. 自然资源学报, 2015,30(5):715-724.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[8] |
成升魁, 高利伟, 徐增让, 等. 对中国餐饮食物浪费及其资源环境效应的思考. 中国软科学, 2012, ( 7):106-114.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[9] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[10] |
江金启, 黄琬真, 王振华. 中国家庭食物浪费的规模估算及决定因素分析. 农业技术经济, 2018, ( 9):88-99.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[11] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[12] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[13] |
张盼盼, 白军飞, 成升魁, 等. 信息干预是否影响食物浪费? 基于餐饮业随机干预试验. 自然资源学报, 2018,33(8):1439-1450.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[14] |
廖芬, 青平, 孙山, 等. “殊途同归”: 沟通方式对食物浪费行为的影响机制分析. 中国农村经济, 2018, ( 5):1-17.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[15] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[16] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[17] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[18] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[19] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[20] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[21] |
IMPORTANCE: Severe sepsis and septic shock are major causes of mortality in intensive care unit (ICU) patients. It is unknown whether progress has been made in decreasing their mortality rate. OBJECTIVE: To describe changes in mortality for severe sepsis with and without shock in ICU patients. DESIGN, SETTING, AND PARTICIPANTS: Retrospective, observational study from 2000 to 2012 including 101,064 patients with severe sepsis from 171 ICUs with various patient case mix in Australia and New Zealand. MAIN OUTCOMES AND MEASURES: Hospital outcome (mortality and discharge to home, to other hospital, or to rehabilitation). RESULTS: Absolute mortality in severe sepsis decreased from 35.0% (95% CI, 33.2%-36.8%; 949/2708) to 18.4% (95% CI, 17.8%-19.0%; 2300/12,512; P < .001), representing an overall decrease of 16.7% (95% CI, 14.8%-18.6%), an annual rate of absolute decrease of 1.3%, and a relative risk reduction of 47.5% (95% CI, 44.1%-50.8%). After adjusted analysis, mortality decreased throughout the study period with an odds ratio (OR) of 0.49 (95% CI, 0.46-0.52) in 2012, using the year 2000 as the reference (P < .001). The annual decline in mortality did not differ significantly between patients with severe sepsis and those with all other diagnoses (OR, 0.94 [95% CI, 0.94-0.95] vs 0.94 [95% CI, 0.94-0.94]; P = .37). The annual increase in rates of discharge to home was significantly greater in patients with severe sepsis compared with all other diagnoses (OR, 1.03 [95% CI, 1.02-1.03] vs 1.01 [95% CI, 1.01-1.01]; P < .001). Conversely, the annual increase in the rate of patients discharged to rehabilitation facilities was significantly less in severe sepsis compared with all other diagnoses (OR, 1.08 [95% CI, 1.07-1.09] vs 1.09 [95% CI, 1.09-1.10]; P < .001.="" in="" the="" absence="" of="" comorbidities="" and="" older="" age="" mortality="" was="" less="" than="" 5.="" conclusions="" and="" relevance:="" in="" critically="" ill="" patients="" in="" australia="" and="" new="" zealand="" with="" severe="" sepsis="" with="" and="" without="" shock="" there="" was="" a="" decrease="" in="" mortality="" from="" 2000="" to="" 2012.="" these="" findings="" were="" accompanied="" by="" changes="" in="" the="" patterns="" of="" discharge="" to="" home="" rehabilitation="" and="" other="" hospitals.="">
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[22] |
王禹, 许世卫, 李哲敏, 等. 城市居民在外就餐食物浪费影响因素实证研究. 中国农业资源与区划, 2018,39(9):199-204.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[23] |
孙中叶. 解读粮食安全问题的新视角: 开源节流并举: 兼论河南家庭粮食消费损失现状及对策. 河南工业大学学报: 社会科学版, 2009,5(3):1-4.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[24] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[25] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[26] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[27] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[28] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[29] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[30] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[31] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[32] |
胡越, 周应恒, 韩一军, 等. 减少食物浪费的资源及经济效应分析. 中国人口·资源与环境, 2013,23(12):150-155.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[33] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[34] |
张丹, 成升魁, 高利伟, 等. 城市餐饮业食物浪费的生态足迹: 以北京市为例. 资源科学, 2016,38(1):10-18.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[35] |
张丹, 成升魁, 高利伟, 等. 城市餐饮业食物浪费碳足迹: 以北京市为例. 生态学报, 2016,36(18):5937-5948.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[36] |
张丹, 伦飞, 成升魁, 等. 城市餐饮食物浪费的磷足迹及其环境排放: 以北京市为例. 自然资源学报, 2016,31(5):812-821.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[37] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[38] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[39] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[40] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[41] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[42] |
Cross-cultural psychologists have mostly contrasted East Asia with the West. However, this study shows that there are major psychological differences within China. We propose that a history of farming rice makes cultures more interdependent, whereas farming wheat makes cultures more independent, and these agricultural legacies continue to affect people in the modern world. We tested 1162 Han Chinese participants in six sites and found that rice-growing southern China is more interdependent and holistic-thinking than the wheat-growing north. To control for confounds like climate, we tested people from neighboring counties along the rice-wheat border and found differences that were just as large. We also find that modernization and pathogen prevalence theories do not fit the data.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[43] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[44] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[45] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[46] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[47] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[48] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[49] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[50] |
It has been estimated that Canadians waste $27 billion of food annually, and that half of that waste occurs at the household level (Gooch et al., 2010). There are social, environmental, and economic implications for this scale of food waste, and source separation of organic waste is an increasingly common municipal intervention. There is relatively little research that assesses the dynamics of household food waste (particularly in Canada). The purpose of this study is to combine observations of organic, recyclable, and garbage waste production rates to survey results of food waste-related beliefs, attitudes, and behaviours at the household level in the mid-sized municipality of Guelph, Ontario. Waste weights and surveys were obtained from 68 households in the summer of 2013. The results of this study indicate multiple relationships between food waste production and household shopping practices, food preparation behaviours, household waste management practices, and food-related attitudes, beliefs, and lifestyles. Notably, we observed that food awareness, waste awareness, family lifestyles, and convenience lifestyles were related to food waste production. We conclude that it is important to understand the diversity of factors that can influence food wasting behaviours at the household level in order to design waste management systems and policies to reduce food waste.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[51] |
王灵恩, 成升魁, 穆松林, 等. 拉萨市餐饮食物消费实证研究. 开发研究, 2012, ( 4):147-152.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[52] |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
[53] |
温忠麟, 张雷, 侯杰泰, 等. 中介效应检验程序及其应用. 心理学报, 2004,36(5):614-620.
[
{{custom_citation.content}}
{{custom_citation.annotation}}
|
{{custom_ref.label}} |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
/
〈 |
|
〉 |