不同经营水平下材用毛竹秆形的差异

调查研究了福建省浦城县古楼乡不同经营水平下材用毛竹秆形(胸径、竹秆鲜重、全秆高、枝下高和枝下竹节数)生长的差异。结果表明:在集约经营条件下,5个毛竹秆形数量指标分别比一般经营增加15.8%、8.6%、2.4%、9.9%、0.4%,比粗放经营增加27.5%、24.9%、9.2%、13.2%、2.8%。不同经营水平和立地类型对毛竹胸径、竹秆鲜重、全秆高和枝下高4个秆形数量指标有显著的影响。集约经营的毛竹秆不仅尖削度小,枝下高长,竹秆的生长量也明显高于一般经营和粗放经营。

Difference on culms indexes of Phyuostachys heterocycla at different management levels

Difference on culms indexes of Phyuostachys heterocycla,including diameter at breast height(DBH),culms weight,culm length,clear bole height,and node number of clear bole was messured in Gulou Town of Pucheng County,Fujian Province.Results showed that the five indexes at management intensive were higher by 15.8%,8.6%,2.4%,9.9%,0.4% than those at management normally,and by 27.5%,24.9%,9.2%,13.2%,2.8% than those at management extensive.The former 4 indexes of P.heterocycla had significant differences among different management levels,and management intensive was the best type for enhencing economic benefits of P.heterocycla.