中文摘要：

北京市城郊农业区各圈层因自然条件、城市化、产业化的不同而承担着不同的生产/非生产性功能。应用农业多功能化推移图谱和产业经济理论对此进行了研究,分析表明北京市农业由近郊平原区到远郊山区的可分成两种演化模式：一是由现代都市型农业向传统农业推移的模式;一是呈扇形推移的农业演化模式。在距中心城市30～40 km范围内,有一个非农产业主导的城乡功能推移的分界区。该区以外,现代特色农业、休闲农业等成为农村经济的主导;其非生产性功能逐渐增强,生态功能更成为中远圈层多种功能的主导。

英文摘要：

Because of the different natural conditions,urbanization and industrialization,the circles of suburban agricultural areas in Beijing has different productive / non-productive functions.In this paper,agricultural multifunctionality theory and industrial economy theory have been employed to analyze the spatial characteristics of surburban agriculture area in Beijing.The reslute shows that the agriculture can be divided into two transition pathways from the plain outskirts to the outer mountainous suburbs.Firstly,agricultural transition pathway has emerged from modern urban agriculture to the traditional agriculture;secondly,it is a fan-shaped agricultural transition pathway expanding from the plains to the mountainous area.But there is a non-agricultural industry dominated buffer zone 30–40 km away from the central city,which has become the boundary belt due to urban functions transfering to the village functions.The modern agriculture and recreational agriculture have become the dominant rural economy outside the buffer zone.Its non-productive functions are being strengthened,which are also spreading to the outer mountainous suburb,and the ecological function can be the leading one among the multifunctions in Beijing＇s midst and outer spheres.