【摘要】 "四位一体"生态农业模式是我国北方生态农业发展中最为典型的模式之一,本文根据北方地区的社会经济条件和资源特点,对"四位一体"生态农业模式的构成体系进行解析,并对其中的关键技术参数进行遴选,确定其标准值,最终确定了北方"四位一体"生态农业模式标准化结构设计标准。更多还原

【Abstract】 Tetrad-ecoagricultural pattern is a typical mode and rapidly developing form of agriculture in North China.In accordance with the characteristics of the society,economy and resources of North China,the paper systemically analyzed the components of tetrad-ecoagricultural pattern,and the prime technological parameters selected for standardization.Finally,the standardized design structures of tetrad-ecoagriculture were tested.更多还原