选育林木良种,是充分利用树木的内在因素,促进林木速生、优质、丰产。许多国家的经验证明,采用良种造林,是提高林木产量和其他林产品的一种最有效、最经济的途径。为了实现造林良种化,我国从六十年代初期,先后在福建、湖南等省首先开展了杉木的良种选育和建立种子园的试点。经过十多年的试验、测定,在取得成效的基础上,从1976年前后,在南方 Breeding of forest seed is to make full use of the intrinsic factors of trees, and promote the fast-growing trees, high-quality, high yield. Experience in many countries has proven that the use of improved afforestation is one of the most effective and economical ways to increase forest yields and other forest products. In order to achieve afforestation planting, China from the early 1960s, successively in Fujian, Hunan and other provinces first carried out the breeding of Chinese fir seed and the establishment of a pilot garden. After more than a decade of testing, measuring, based on the results achieved, from around 1976, in the south