一个简单的全球粮食系统模型

IF 1.9 4区经济学 Q2 AGRICULTURAL ECONOMICS & POLICY

Agricultural Economics-Zemedelska Ekonomika Pub Date : 2018-02-11 DOI:10.17221/40/2013-AGRICECON

Li Jiang, X. Cui, Xia Xu, Yuan Jiang, M. Rounsevell, Dave Murray-Rust, Yinghui Liu

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引用次数: 6

摘要

在过去的50年里，世界人口增长了一倍多，到2020年可能会继续增长，达到75.6亿，到2030年达到81.8亿，到2050年达到90亿(FAO 2003)，如图1所示。不仅人口总量发生了变化，而且人口结构也发生了变化。1950年，全球只有30%的人口是城市居民，而近年来，这一比例已超过50%，占全球人口净增长的95%以上

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A simple global food system model

World population has more than doubled during the past 50 years and it possibly will keep increasing up to 7.56 billions by 2020, 8.18 billions by 2030 and 9 billion by 2050 (FAO 2003) as shown in Figure 1. Not only the total amount but also the structure of population changed. In 1950, only 30% of the global population were urban dwellers, while in the recent years, this percentage has exceeded 50%, and more than 95% of the net increase in the global population

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来源期刊

Agricultural Economics-Zemedelska Ekonomika Agricultural Economics & Policy-

CiteScore

4.30

自引率

4.50%

发文量

审稿时长

30 weeks

期刊介绍： An international peer-reviewed journal published under the auspices of the Czech Academy of Agricultural Sciences and financed by the Ministry of Agriculture of the Czech Republic. Published since 1954 (by 1999 under the title Zemědělská ekonomika).Thematic scope: original scientific papers dealing with agricultural subjects from the sphere of economics, management, informatics, ecology, social economy and sociology. Since 1993 the papers continually treat problems which were published in the journal Sociologie venkova a zemědělství until now. An extensive scope of subjects in fact covers the whole of agribusiness, that means economic relations of suppliers and producers of inputs for agriculture and food industry, problems from the aspects of social economy and rural sociology and finally the economics of the population nutrition. Papers are published in English.