甘肃省银杏资源培育区划的研究

Study on the Division of Cultivation Districts of Ginkgo biloba L.Resource in Gansu Province

依据近10a实地调查资料，阐明了银杏在甘肃境内的资源分布特征，主要按照银杏的适生性，栽培历史和培育方向将甘肃省划分为3个培育类型区，即：最宜自然原产区、适生栽培区、外延引种试种区。从而作为因地制宜，合理布局银杏资源培育方向和开发利用规划的科学基础。

On the basis of the investigation materials collected on the spots in the last ten years, the distribution characteristics of Ginkgo biloba L. resource in Gansu province were expounded, and then, the province was divided into three districts: fittest natural native area, fit cultivation area and eXtensible trial introduction area, in accordance with the cultivation history,ecological adaptability and the tendency or ways of cultivating and expanding GinkgO biloba L. resource in different area. Thereby the measures for cultivating and utilizing the resource would be adapted to local conditions.