马尾松(Pinus massoniann Lamb)是我国分布广,蓄积量多,适应性强,生长快,用途大,造林更新容易,成本低,成材有把握的主要用材树种之一,历来被誉为南方荒山造林的先锋树种。为了进一步发展马尾松造林事业,为选择最优种源和类型提供科学依据,让马尾松更好地为“四化”服务,我们1976年收集到5省10个地区的种源,于1977年育苗,1978年春造林,目前保存率在90％以 Pinus massoniann Lamb is one of the main tree species with wide distribution, large accumulation, strong adaptability, fast growth, large use, easy reforestation, low cost, and ready-made materials. It has always been praised as afforestation in the southern barren hills Pioneer tree species. In order to further develop Pinus massoniana afforestation, provide the scientific basis for selecting the best provenance and type, and make Masson better serve the “four modernizations”, we collected provenances from 10 provinces in 5 provinces in 1976, and in 1977 Nursery, afforestation in the spring of 1978, the current preservation rate of 90%