野生四方竹垦复改造技术

Technology of Reclaimation and Modification for Wild Square Bamboo Grove

方竹属(Chimonobambusa)四方竹(C.quadrangularis (Fenzi) Makino)是优良的笋竹两用乡土经济竹种。根据对四方竹生物、生态特性观察,在复层林分的下层及山谷荫湿环境纯林生长发育良好。总结了四方竹野生竹林垦复改造技术,以分类经营为原则,通过劈山清杂、松土垦复、水肥管理,建立集约经营、一般丰产经营与生态经营竹林。集约与一般丰产经营竹林单位面积立竹量提高了290.1%,平均胸径提高了177.9%,2008年竹林单位面积平均出笋23 067个(采挖与留笋养竹总和),已基本建成正常生产经营竹林。

Square bamboo（Chimonobambusa quadrangularis） was an excellent local economic species used for both bamboo shoots and bamboo.According to observation of biological and ecological characteristics,the pure stands of square bamboo grown well in the lower layer of multi-storied forest and the shady and damp environment in a valley.In this paper the technology of reclaimation and modification for wild square bamboo grove had been summed up.The intensive management,the general high-yielding management and the ecological management of bamboo grove which contained several administration mesures（such as leveling off hilltops and clearing the litter,scarification and reclaimmation,water and nutrient management,etc.） had been established under the principle of classified management.By intensive management and general high-yielding management,the bamboo quantity per unit area and the average diameter at breast height increased by 290.1% and 177.9% respectively.In 2008,the average output of bamboo shoots per unit area（bamboo shoots for excavation and that raised for timber use） was 23067.These indicated that the regular production and business operations of squre bamboo grove had basically been completed.