摘要
在福建省毛竹产区内设置标准地 1 80块 ,每块标准地挖小样方 2个 ,调查高产竹林的地下结构 (鞭长、鞭重、鞭龄和壮芽数、弱芽数等 ) ,并进行分布特征研究和分析。结果表明 ,丰产竹林竹鞭大部分分布在 0～ 40cm土层中 ,总鞭长的大小顺序为 :笋竹两用林 >材用竹林 >笋用竹林 ,但均占 90 %以上。总鞭重的大小顺序为 :材用竹林 >笋竹两用林 >笋用竹林 ,笋用竹林的幼龄竹鞭鞭长和鞭重比材用竹林大 ,壮龄竹鞭鞭长与鞭重的大小顺序为材用竹林 >笋竹两用林 >笋用竹林 ,壮龄竹鞭大约有 55 %～ 66 %分布在 0～ 40cm深的土层中 ;竹鞭生长方向多为“平行”方向 ,材用竹林占 63 .2 % ,笋竹两用林占 48.8% ,笋用竹林占 47.2 % ;分岔类型多为单侧单岔 ;竹鞭上生长的多为壮芽 ,材用竹林 77.5 % ,笋竹两用林占 77.9% ,笋用竹林占 78.0 %。这些竹林正处于出笋旺盛期。
plots of high yield bamboo forest in main production areas of Phyllostachys heterocycla cv. pubescens in Fujian Province, the underground structure of high-yield bamboo forest were studied and analyzed through two small sampling plots in every plots The results showed that the bamboo rhizome mainly distributed in 0～40cm layer of soil,and that the orders of total length of rhizomes of high-yield bamboo forest were:shoot and timber use forest>timber use forest>shoot use forest, but more than 96% of total rhizome length was in this layer for three kinds of bamboo forests. The total weight of rhizome was in the following order: timber use forest >shoot and timber use forest >bamboo shoot use forest. The length and the weight of young rhizome of high yield bamboo shoot use forest were higher than those of timber use forest, and which of healthy rhizome were timber use forest>both shoot and timber use forest>shoot use forest.There were about 55～66 percent of healthy rhizome in the depth of 0～40cm soil layer. The growth direction of bamboo rhizome was largely parallel, which accounted for 63 2% in the timber use forest, 48 8% and 47 2% in the shoot and timber use forset and the shoot use forest respectively. The buds grown on rhizome were mostly the healthy buds, which made up 77 5% for the timber forest,77 9% for both shoot and timber forest, and 78 0% for the shoot forest. The results showed that the bamboo forest are in the vigorous stage of shoot emergence. \ \
出处
《林业科学》
EI
CAS
CSCD
北大核心
1998年第S1期52-59,共8页
Scientia Silvae Sinicae
关键词
毛竹
材用竹林
笋竹两用林
笋用竹林
地下结构
Phyllostachys heterocycla cv pubescens , Timber use bamboo forest, Bamboo shoot and timber use forest, Bamboo shoot use forest, Underground structure
