毛金竹鞭系结构调查

摘要

By the method of hierarchical mining,the bamboo rhizome system structure of Phyllostachys nigra var.henonis was researched in Yanling County.The results showed that the number of rhizomes was 80.7 per square meter,the length of rhizomes was 2 271.2 cm/m2 ,the weight of rhizomes was 4 502.0 g/m2 ,the diameter of rhizomes was 1.27 cm.The number,length,weight of rhizomes in 0 ~10 cm soil layer were 77.3%、73.5% and 73.0% of the total rhizome system respectively.The number of buds in quadrat was 1 028.7 per square meter,the weak buds,strong buds,shoot buds, empty buds,branch whips were14.7%、25.9%、1.5%、53.6% and 4.3% of the total buds respectively.The number of strong buds in rhizome of 2 ~3 a were 210.3 per square meter,79.1 % of total number of strong buds.The number of non -bifurcation rhizomes was 59.1 % of the total rhizomes and the number of single side single rhizomes was 28.5% of the total rhizomes.%采用分层挖掘法对炎陵县毛金竹鞭系结构进行调查，结果表明：研究区样方内毛金竹林地下鞭段条数为80.7条／m2，总鞭长2271.2 cm／m2，鞭质量为4502.0 g／m2，平均鞭径为1.27 cm。0～10 cm 土层的鞭段数、鞭长、鞭质量分别占整个竹鞭系统的77.3％、73.5％和73.0％。样方内总鞭芽数为1028.7个／m2，其中弱芽、壮芽、笋芽、空芽、岔鞭分别占14.7％、25.9％、1.5％、53.6％和4.3％。2～3龄竹鞭上壮芽数量为210.3个／m2，占总壮芽数量的79.1％。毛金竹竹鞭无分岔鞭段数量占总鞭段数量的59.1％，一侧单岔鞭段数量占总鞭段数量的28.5％。