[1]张雅娟,王延华,蔡祖聪,等.江苏省居民食物氮足迹研究[J].南京师范大学学报(工程技术版),2019,(01):078.[doi:10.3969/j.issn.1672-1292.2019.01.011]
 Zhang Yajuan,Wang Yanhua,Cai Zucong,et al.Study of the Food Nitrogen Footprints of Urbanand Rural Residents in Jiangsu Province[J].Journal of Nanjing Normal University(Engineering and Technology),2019,(01):078.[doi:10.3969/j.issn.1672-1292.2019.01.011]
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江苏省居民食物氮足迹研究
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南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2019年01期
页码:
078
栏目:
地理信息工程
出版日期:
2019-03-30

文章信息/Info

Title:
Study of the Food Nitrogen Footprints of Urbanand Rural Residents in Jiangsu Province
文章编号:
1672-1292(2019)01-0078-08
作者:
张雅娟1王延华12蔡祖聪12邱 雨1杨 浩12
(1.南京师范大学地理科学学院,江苏 南京 210023)(2.江苏省地理信息资源开发与利用协同创新中心,江苏 南京 210023)
Author(s):
Zhang Yajuan1Wang Yanhua12Cai Zucong12Qiu Yu1Yang Hao12
(1.School of Geography,Nanjing Normal University,Nanjing 210023,China)(2.Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application,Nanjing 210023,China)
关键词:
江苏省城乡居民氮流模型氮足迹食物链
Keywords:
Jiangsu provinceurban and rural residentsnitrogen flow modelnitrogen footprintfood chain
分类号:
X24; F126.1
DOI:
10.3969/j.issn.1672-1292.2019.01.011
文献标志码:
A
摘要:
我国城镇化进程的加快带动了城乡居民食物链中氮素的流动. 食物氮足迹提出的目的在于量化食物生命周期中释放出的氮素及其对环境带来的影响. 研究了江苏省2000—2015年氮素在农田、禽畜、家庭3个子系统中的流动所产生的食物氮足迹,探讨减少居民氮素排放对环境的影响. 研究结果表明,江苏省城镇与农村人均食物氮足迹呈相反的变化趋势,但在2012年大致相等. 城镇食物氮足迹从16.08 kgN/(人·年)波动上升至 21.52 kgN/(人·年),平均为(19.93±1.45)kgN/(人·年). 农村食物氮足迹从23.84 kgN/(人·年)波动下降至 20.21 kgN/(人·年),平均为(22.33±1.34)kgN/(人·年). 食物氮因子是导致食物氮足迹变化较大的主导因素,通过减少化肥施用量、宣传低氮消费、提高加工效率、提倡“光盘行动”等方法能够有效地减少食物氮足迹.
Abstract:
The acceleration of the urbanization process has led to the circulating of active nitrogen in the food chain of the urban and rural residents. The purpose of the food nitrogen footprint is to quantify the active nitrogen released in the food life cycle and identify the environmental effects imposed by the active nitrogen. Accordingly,this paper discusses how to shrink the environmental impacts made by the active nitrogen emissions in urban areas. To calculate the amount of the active nitrogen circulating in the food chain,the data during year 1990 to 2015 in Jiangsu province are analyzed. The results show that per capita food nitrogen footprint in urban and rural areas is the opposite trend. However,in 2012 they are equal. For urban areas,food nitrogen footprint rises from 16.08 kgN/(person·yr)to 21.52 kgN/(person·yr),with an average of(19.93±1.45)kgN/(person·yr). The food nitrogen footprint in rural areas decreases from 23.84 kgN/(person·yr)in 2000 to 20.21 kgN/(person·yr)in 2015,with an average of(22.33±1.34)kgN/(person·yr). The food nitrogen factor is dominant factor leading to large food nitrogen footprints. However,to shrink the food nitrogen footprint,we apply some methods,just as reducing the amount of fertilizer,promoting the ideals of low nitrogen consumption,improving the processing efficiency,initiating the campaign of“Clear Plate”etc.

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备注/Memo

备注/Memo:
收稿日期:2018-04-08.
基金项目:“十三五”水体污染控制与治理科技重大专项(2017ZX07203-005)、国家自然科学基金(41673107).
通讯联系人:王延华,教授,博士生导师,研究方向:氮素梯级流动及其环境效应. E-mail:wangyanhua@njnu.edu.cn
更新日期/Last Update: 2019-03-30