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本文对香椿（Ｔｏｏｎａｓｉｎｅｎｓｉｓ（Ａ．Ｊｕｓｓ．）Ｒｏｅｍ．）、木蝴蝶（Ｏｒｏｘｙｌｕｍｉｎｄｉｃｕｍ（Ｌ．）Ｖｅｎｔ．）、扁斗青冈（ＱｕｅｒｃｕｓｈｕｉＣｈｕｎ）、泡桐（Ｐａｕｌｏｗｎｉａｆｏｒｔｕｎｅｉ（Ｓｅｅｍ．）Ｈｅｍｓｌ）罗浮柿（ＤｉｏｓｐｙｒｏｓｍｏｒｒｉｓｉａｎａＨａｎｃｅ）、枳（ＢｅｒｃｈｅｍｉａｄｕｌｃｉｓＴｈｕｎｂ．）等南亚热带森林乔木种子萌发和幼苗生长进行观察．香椿、扁斗青冈、罗浮柿种子在轻阴（５５％光）条件下萌发率最高，分别为７０％、９０％、３０％，木蝴蝶种子在重阴（３８％光）条件下萌发率最高，为８０％，枳种子在光照条件下萌发率最高，为１５％．阳性树种香椿、木蝴蝶、泡桐、枳幼苗生长速度较快，属速生型树种，其幼苗在光照条件下生长速度最快，森林中树种扁斗青冈、罗浮柿幼苗生长速度较慢，属慢生型树种，其幼苗在轻阴条件下生长较好．随着施肥量的增加，幼苗生长速度明显提高．
In this paper, the effects of Toonasinensis (A.Juss. Roem.), Oroxylumindicum (L.) Vent., QuercushuiChun, Paulownia fortunei (Seem.) Hemsl, Diospyrosmorrisiana Hance, (BerchemiadulcisThunb.) And other subtropical forest tree seed germination and seedling growth were observed. The germination rate of Toona sinensis, Cyclobalanopsis glauca and Torula japonicus seeds were the highest in light shade (55% light), the highest germination percentage was 70%, 90%, 30% , Which is 80%. The highest germination rate of Citrus aurantium seeds is 15% under the light conditions. The positive species toon, wood butterflies, paulownia, citrus seedlings grow faster, is a fast-growing tree species, the seedlings grow fastest under light conditions, the forest tree flat Cyclobalanopsis, Tomato seedlings growth slower, is slow Type tree species, its seedlings grow well under light and shade conditions. With the increase of the amount of fertilizer, seedling growth rate increased significantly.