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贵州省桐梓县是国家林业局命名的“中国方竹笋之乡”。金佛山方竹[隶属于竹亚科寒竹属,是大自然赐予桐梓县的特色竹种(以下简称方竹)。全县方竹天然林面积近20万亩,但多系20世纪30年代天然更新的延续,系统发育渐趋衰老,加之多年来疏于管理,掠夺式采笋伐竹致使方竹无性系种群退化,除柏箐自然保护区的3.8万亩方竹林属高产、稳产林分外,其余均属低产林分,平均亩产在30公斤左右,产值不到每亩50元,产出比相当低。为了加快方竹林复壮更新,提高林分质量,增加方竹笋产量,使之成为桐梓县可持续发展的特色产业,促进山区农民增收致富,方竹低产林改造(以下简称方竹低改)也就提到议事日程。现根据多年试验,总结出如下低改措施。
Tongzi County, Guizhou Province, is named after the State Forestry Administration “hometown of Chinese bamboo shoots.” Golden Buddha [belonging to bamboo subfamily Han bamboo genus, nature is given Tongzi County characteristics of bamboo species (hereinafter referred to as Fang bamboo). The total area of natural bamboo in Fangzhu County is nearly 200000 mu, but it is mainly due to the continuation of natural renewal in the 1930s and the gradual aging of the phylogeny. Coupling with the neglect of management over many years, Except for the high yielding and stable yield forest of 38,000 mu of Fangzhu forest in Baijiao Nature Reserve. The rest are low-yield stands with an average yield of 30 kg per mu and a production value of less than 50 yuan per mu. The output ratio is quite low. In order to accelerate the rejuvenation of square bamboo forest to improve the quality of the stands, increase the yield of square bamboo shoots, make it a characteristic industry of sustainable development in Tongzi County, promote the farmers in mountainous areas to increase income and get rich, Mention the agenda. According to many years of experiments, summed up the following measures to change low.