目前,国内外对技术扩散的研究中时间维角度扩散研究较多,而空间维扩散研究相对薄弱。以中国果业协会为依托,通过对协会内果树系列技术成果采用系统调查的基础上,运用相关分析和行为分析的方法,从不同尺度对技术空间扩散进行透视,得出以下结论:①不同尺度下影响农业技术扩散和使用的因素相差较大。宏观尺度下影响果树系列技术扩散的主要因子为规模,中微观尺度下影响技术扩散的主要因子为距离;②随着空间尺度的缩减,技术扩散由明显的规模等级扩散向随距离增加扩散强度减弱的渐进扩散转化;③农业技术在空间扩散方向上具有"寻"的特征,即技术扩散总是在追求扩散效益最大化;④微观尺度的农户行为分析表明,农户技术采用行为主要受农户本身对高收益的追求和外部因素对农户的影响两方面作用。

Efficiency of agricultural technology diffusion is a decisive factor for the development of rural economy. The authors hold that the research on technology diffusion at home and abroad is focus on temporal diffusion while lacking the intensive research on spatial diffusion. Choosing China Fruit Association as an example, the authors researched the diffusion of fruit cultivation technique and the spatial diffusion characteristics by using correlative analysis and behavior analysis methods from different spatial scales. The results show that:1) Influential factors of agricultural technology diffusion showed diversity from different spatial scales; 2) With the spatial scale reduction, hierarchical diffusion on macroscopic scale is gradually changed into contagious diffusion on microcosmic scale, due to different intermediate mediums which have different ability in overcoming distance; 3) The diffusion direction of agricultural technology always pursuits the regions in which new technology spreading can making the maximum benefit. The more benefit the region obtains from using the new agricultural technology, the quicker rate the new agricultural technology diffused; 4) Analysis on farmers behavior on microcosmic scale shows the influencing factors of farmers using new technology depend on both the max benefit farmers pursuit and the impact from external factors. These conclusions can provide theoretical basis and reference for constructing high level agriculture technology diffusion system under market mechanism, improving diffusion model of agriculture technology, accelerating agriculture technology diffusion rate.