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湖南引进栽种的国外松主要是湿地松Pinus elliottii和火炬松P.taeda,它们原产美国东南部,我国早在1938年就引种成功。湖南于1950年引进。现在我国南方14个省区都已引种栽培,其中尤以广东、湖南、湖北3省面积大,分布广。湿地松和火炬松具有生长快、干形圆满通直、材质好、适应性强等优点,是丘陵荒山的理想造林树种,很受群众欢迎。但是近年采大面积造林,特别是营造大面积纯林,在病害方面也有不同程度的发
Introduced and planted in Hunan are mainly Pinus elliottii and Pinus taeda, which originated from the southeastern United States. As early as 1938, China introduced it successfully. Hunan introduced in 1950. Now 14 provinces and autonomous regions in southern China have been introduced and cultivated, especially in Guangdong, Hunan, Hubei Province, 3 large area, widely distributed. Pinus elliottii and loblolly pine have the advantages of rapid growth, dry and straight shape, good material, strong adaptability and the like, and are ideal afforestation species of hills and hills and are popular with the masses. However, large-scale reforestation in recent years, especially to create a large area of pure forest, the disease also has varying degrees of fat