板 栗(Castanea　　mouissima　　B1yme)是我国 的名优干果,分布区域广,栽植面积大, 但低产园较多。近年来,我国林业科技工作者在板栗栽培高产栽培技术方面的研究取得了重大突破,但对低产园成因分析及增产改造配套技术研究较少。为此本文在这方面进行了研究,以分析低产园的成因 Chestnut (Castanea mouissima B1yme) is China’s famous dried fruit, the distribution of a wide area, planting area, but more low-yielding garden. In recent years, China’s forestry scientists have made great breakthroughs in high-yield cultivation techniques of chestnut cultivation, but few studies have done about the causes of low-yield gardens and the matching techniques of increasing production and transformation. Therefore, this article has carried on the research in this aspect, in order to analyze the reason of the low yield garden