两岸农地数量变化的比较：1952—1998

农地对于粮食安全、食物供给、农村劳动力就业等关系到国民经济可持续发展的问题有重要影响。本文试图把握两岸在1952—1998年农地的数量变化趋势，并从经济政策的角度解释这种变化的原因。文章阐述了1952—1998年两岸的经济发展及相应阶段农地数量的变化并分析其原因：应用马尔柯夫链的理论与方法研究大陆典型区域全面工业化中后期的土地利用结构变化。研究表明台湾的农地数量随着工业化中后期有加速减少的趋势，而大陆农地数量的减少速率有减缓的趋势，大陆典型区域的研究显示了大陆在工业化中后期农地减少速率会有提高；在数量减少的同时质量也下降；大陆与台湾在经济发展的不同阶段农地变化趋势的异同跟经济发展战略、资源配置方式、土地利用政策、粮食政策等有密切关系。文章就大陆的经济发展与农地保护问题提出了建议。

农地制度与农业可持续发展

农地制度核心是农地的产权制度。它在农业可持续发展中的作用是由农地在农业生产中的重要作用所决定的。农业生产是建立在对农地使用的基础上,农业可持续发展的关键在于农地资源的可持续利用。

Pupil＇s Diet-Related Attitudes to Healthy Lifestyle

The main purpose of this article was to find out more about eating habits along with other habits, attitudes and activities of elementary school pupils. Another aim was to determine possible differences among pupils, depending on their sex, age and environment. Furthermore, based on the anthropometric data （body mass and height） and age, this article was to determine the nutritional status of pupils. The research was conducted via questionnaire constructed for the needs of this specific research. Six hundred and fifty-one pupils took part in this questionnaire in a ratio of 41：59 urban/rural and 51：49 girls/boys. Most of the interviewed pupils （73.88%） have normal body mass according to their age. The share of underweight and overweight pupils is bigger among the boys. Nutritional habits differ among pupils from the urban and rural areas, but they do not differ as much among boys and girls. In addition, their nutritional habits become worse as they grow up.