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最近,在广西河池市大山塘林场发现有大片的桫椤植物群落,多生于杉木人工林下,特别是在杉木林缘形成大面积桫椤群落,生长茂密(见右图)。据林场职工反映:该场建于1957年9月,当时营造杉木林时,林地都经过全垦整地,造林后又于1978年进行人工间伐,那时没有发现桫椤生长,但在间伐后;林地内有充分的光照,透光度达20％,气温暖和,湿度适中,为桫椤孢子传播、萌发及生长发育创造了有利条件,因而形成了杉木林下及林缘的桫椤植物群落。
Recently, a large patchwork of plant communities was found in Dashatang Forest Farm, Hechi City, Guangxi Province. Most of the plants were born under Chinese fir plantation, especially in the large margin of Cunninghamia lanceolata forest. According to the forest farm workers: This site was built in September 1957, when the fir plantation was established, the forest land was fully reclaimed and planted. After afforestation, artificial thinning was conducted in 1978. At that time, no catfish was found, but after thinning; There are sufficient light, light transmittance of 20%, warm air and moderate humidity, for Sporulation spores propagation, germination and growth and development has created favorable conditions, thus forming a Chinese fir plantation and forest margin of the emus plant community.