杉木(Cunninghamia Lanceolata)的自然分布和栽培区域遍及我国亚热带的大部分地区。六十年代末以来,随着造林事业的发展,杉木被引植到平原湖区。平原湖区水肥条件优越,较好的林分,生长速度超过丘陵山区,树高、胸径、材积年平均生长最分别达到1m、1cm 和1m~3,经济效益显苦。笔者在石首工作多年,现就石首市平原湖区杉木造林有关情况试析如下: The natural distribution and cultivation of Cunninghamia lanceolata covers most parts of China’s subtropics. Since the late 1960s, with the development of afforestation, Chinese fir has been introduced to the plain lake area. The water and fertilizer conditions in the plain Lake are superior. The better stand and growth rate exceed the hilly and mountainous areas. The average annual growth of tree height, diameter at breast height and volume is 1m, 1cm and 1m ~ 3, respectively. The author for many years in Shishou, now Shishou City Plain Lake area fir afforestation about the situation as follows: