杉木生长迅速,材质优良,用途广,深受群众喜爱。江苏省南部低山丘陵地处杉木自然分布区北缘,栽杉生态条件较差,过去造林多用邻省浙北、皖南种源,现有杉木林生产力较低。为了发掘利用杉木树种群体的地理生态变异,选择适当种源造林,提高林分生产力,我们在中林院林研所统一布署和 Cunninghamia rapid growth, good material, wide use, loved by the masses. Low hills in the southern part of Jiangsu Province are located in the northern margin of the natural distribution of Chinese fir. The ecological conditions of Chinese fir are poor. In the past, afforestation was mainly carried out in neighboring provinces of northern Zhejiang and southern Anhui, and the productivity of existing Chinese fir plantations was relatively low. In order to explore the use of Chinese fir population population of geographical and ecological variation, select the appropriate provenance afforestation, improve stand productivity, we unified in Lin Institute of Forestry Institute and