Abstract: The four periods,primitive agriculture,traditional agriculture,mordwen agriculture and eco logical agriculture as well as their productivity were reviewed and analysed in this paper.It is showed that grassland agricultural system could solve the ecological crisis left over by history.The concept, structure and function of ecological agriculture which is land-plant-animal three in one were introduced,and 6 effec tive contermeasures for constructing chiness grassland agricultural system were put forward.

Key words: Grassland agriculture, Agricultural system, Agriculture developing history, Contermeasure

摘要： 本文回顾和分析农业发展历史的四个阶段,即原始农业、传统农业、现代农业和生态农业及其生产特征与评价,说明属于生态农业模式之一的草地农业系统能够较好地解决历史遗留的生态危机问题。草地农业系统是土地－植物－动物三位一体的生态农业类型的发展概况、概念、体系、结构与功能,最后提出建设我国草地农业系统的六条有效对策。

关键词: 草地农业, 农业系统, 农业发展历史, 对策