【摘要】 根据微观经济学的原理,应用增长因素分析模型对广西1950～1990年粮食生产增长因素进行分析研究,结果发现;平均亩产对粮食总产量增长的“贡献份额” 为90.03%;种植面积对粮食总产量增长的“贡献份额”为9.97%。用指数模型分析方法对广西1980～1990年粮食生产增长因素进行分析研究,结果发现:平均亩产对粮食总产量增长的“贡献份额”是148.12%;种植面积对粮食总产量增长的“贡献份额”是-44.99%(负值,因为面积减少);种植结构变动对粮食总产量增长的“贡献份额”是-3.11%(负值,因为高产作物面积减少)。更多还原

【Abstract】 According to the principles of micro-ecoromics and using the analytical model of increased factors , the anthors analysed and studied the increased factors of grain production from 1950-1990 in Guangxi . The results showed that, "the contribution portion" of the average output per mu to the increase of the total output of grain was 90.03%; "the contribution portion" of the planting area to the increase of the total output of grain was 9.97%. Using the index- model analytical method to analyse the increased factors of the grain production in Guangxi from 1980-1990, the results showed that: "the contribution portion" of the average output per mu to the increase of the total output of grain was 148.12%; the contribution portion of the planting area to the increase of the total grain output was-44.99% ( negative,since the area decreased) ; the contribution portion of the change of planting structure to the increase of the total grain output was -3. 11% ( negative, since the area of high-yield crops decreased ).更多还原