我国历代粮食亩产量的变化及其原因分析

粮食亩产量的高低是以精耕细作为基础 ,走集约化经营道路的我国农业生产中的关键问题。历代统治者都非常关心如何提高粮食单产 ,以便解决泱泱大国人多地少的矛盾。粮食亩产量受许多自然因素和社会因素、有利因素和不利因素的影响 ,通过考察历史时期的粮食亩产量变化 ,分析其动因 ,找到提高粮食单产和总产的有效途径 ,指出了我国农业生产应该依靠科技力量 ,保护生态环境 ,改革土地政策 ,走可持续发展的道路。

Reason and Analyse about Change of Foodstuff a unit of area yield in Past Dynasties in China

Intensive cultivation is the foundation of foodstuff output and the sixty-four-dollar question in agriculture production in our country. Past dynasties concerned how to increase a unit of area yield, in order to resolve the contradiction because of more people and less plough field in magnificent country. Many factors impact the foodstuff output, such as: naturalness and society; favorableness and disadvantage. through over reviewed the change of foodstuff yield in history date, analysed the reasons, discovered the availability approach to increase foodstuff yield. The paper point out that: farming production should develop continuance, depend on science and technology, protected environment and reformed the glebe policy.