从粮食作物产量变化看农业经济发展走势

Analysing Alignment of Agricultural Economy from Change of Food Crop Output

粮食产量是反映农业经济情况的重要指标,历史时期的粮食产量变化,是由其政治、社会、文化和自然生态等原因引起的,分析其原因为未来农业经济发展提出建议。

The output of food crop is a important guid line of agricultural economy. Change of food's output in every era, analysed the reason in politics、society、 culture and natural ecology etc., and lodged the advice for development of agricultural economy in future.