男女羞羞视频在线观看,国产精品黄色免费,麻豆91在线视频,美女被羞羞免费软件下载,国产的一级片,亚洲熟色妇,天天操夜夜摸,一区二区三区在线电影

We have launched E-mail Alert service,subscribers can receive the latest catalogues free of charge

 
 
You Are Here: Home > Research > Rural Economy> Working Papers

Rural Economy

Grain security or food security: on China’s food security issues

2014-08-28

By Xiao Junyan 

Date: 2004/12/14

Abstract:  

The notion of "food security" rather than "grain security" is the one accepted internationally; the former is the better one in revealing the food and nutrition condition of the people. The concept of "food security" refers to security of basic food consumption rather than satisfaction at a higher level; therefore the bottom line of food security does not necessarily require 400 kg per capita food grain. At present time, the food security condition in China is stable; conceptually "food security" should replace "grain security"; in policy making, we must avoid the tendency of "generalized grain security" and carefully study and make appropriate policies for a stable food security system.?

 
主站蜘蛛池模板: 宜宾市| 张北县| 永济市| 延吉市| 什邡市| 南平市| 乌鲁木齐县| 镇江市| 子洲县| 洛南县| 格尔木市| 循化| 永胜县| 锡林浩特市| 德阳市| 仙游县| 比如县| 泰宁县| 饶平县| 黄石市| 汕尾市| 定日县| 庄浪县| 河池市| 肇源县| 淄博市| 沙河市| 卓资县| 旬阳县| 扬中市| 蒲江县| 平顺县| 报价| 双城市| 马山县| 沙田区| 通渭县| 明水县| 沂南县| 武城县| 商水县| 滨州市| 融水| 钦州市| 睢宁县| 米林县| 黎城县| 西安市| 兖州市| 苗栗县| 达孜县| 旬阳县| 余江县| 綦江县| 平利县| 延川县| 垫江县| 偏关县| 壤塘县| 丹巴县| 九江市| 吉木乃县| 泸州市| 阳曲县| 崇阳县| 岳普湖县| 上饶县| 都匀市| 丰台区| 佳木斯市| 千阳县| 时尚| 鄂温| 微博| 隆安县| 南乐县| 西乡县| 山东省| 仁化县| 册亨县| 沙河市| 保定市|