南北差异视角下个体食物浪费行为——基于大学生高校食堂就餐情境的分析

doi:10.31497/zrzyxb.20210302

自然资源学报 ›› 2021, Vol. 36 ›› Issue (3): 552-566.doi: 10.31497/zrzyxb.20210302

南北差异视角下个体食物浪费行为——基于大学生高校食堂就餐情境的分析

钱龙¹(), 李丰¹, 钱壮¹, 王灵恩²()

1.南京财经大学粮食安全与战略研究中心,南京 210003
2.中国科学院地理科学与资源研究所,北京 100101

收稿日期:2019-09-12 修回日期:2019-11-20 出版日期:2021-03-28 发布日期:2021-05-28
通讯作者: 王灵恩 E-mail:qianlongy101@126.com;wangle@igsnrr.ac.cn
作者简介:钱龙（1988- ）,男,安徽枞阳人,博士,副教授,研究方向为食物经济。E-mail: qianlongy101@126.com
基金资助:
国家自然科学基金项目(71803077);国家自然科学基金项目(41701620);国家公益性行业科研专项(201513004);教育部人文社会科学研究基金项目(18YJC90128)

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 Long¹(), LI Feng¹, QIAN Zhuang¹, WANG Ling-en²()

1. Center for Food Security and Strategic Research, Nanjing University of Finance and Economics, Nanjing 210003, China
2. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China

Received:2019-09-12 Revised:2019-11-20 Online:2021-03-28 Published:2021-05-28
Contact: WANG Ling-en E-mail:qianlongy101@126.com;wangle@igsnrr.ac.cn

摘要/Abstract

摘要：

饮食习惯一直被认为是造成食物浪费的重要因素。基于对29省29所高校9192份大学生食堂就餐的实地调查问卷,从南北差异视角探讨了个体食物浪费行为的差异特征。研究表明：相对北方籍大学生,南方籍大学生浪费食物的概率更高,南方籍大学生在高校食堂就餐时食物浪费量和浪费率也高于北方籍大学生。通过中介效应模型,证实南北方主流饮食模式是引发浪费差异的关键所在。进一步匹配大学生南北方籍贯和所就读高校的南北区位,并以“南方大学生在南方高校求学”模式为基准,发现“南方大学生到北方高校求学”模式下,个体有更低的食物浪费概率、浪费量和浪费率。但“北方大学生到南方高校求学”模式下,个体没有显示出较低的食物浪费概率、食物浪费量和食物浪费率,从而稳健地证实南北方主流饮食模式是引发浪费差异的关键所在这一结论。

关键词: 食物浪费, 高校食堂, 南北差异, 主流饮食模式

Abstract:

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.

Key words: food waste, college canteen, North-South difference, mainstream diet

钱龙, 李丰, 钱壮, 王灵恩. 南北差异视角下个体食物浪费行为——基于大学生高校食堂就餐情境的分析[J]. 自然资源学报, 2021, 36(3): 552-566.

QIAN Long, LI Feng, QIAN Zhuang, WANG Ling-en. 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[J]. JOURNAL OF NATURAL RESOURCES, 2021, 36(3): 552-566.

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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

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

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

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

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

南北差异视角下个体食物浪费行为——基于大学生高校食堂就餐情境的分析

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

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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

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