何亚平,杨执菊,蒋俊明,费世民,陈秀明,余英,唐森强
HE Ya-ping1 YANG Zhi-ju2 JIANG Jun-ming1 FEI Shi-min1 CHEN Xiu-ming1 YU Ying3 TANG Sen-qiang3(1.Sichuan Academy of Forestry,Chengdu 610081,2.Forestry Bureau of Litang County,Litang 627550,3.Forestry Bureau of Changning County,Changning 644000,Sichuan Province)

• 1:四川省林业科学研究院
• 2:理塘县林业局
• 3:四川省林业科学研究院
• 4:四川省林业科学研究院

摘要(Abstract)：

本文研究了四川长宁毛竹种群的数量特征和生物量结构,探讨了人为干扰条件下毛竹种群数量特征的特殊性。结果表明:(1)由于毛竹特殊的生长习性,大小和年龄无关,毛竹种群的大小结构和年龄结构缺少相关性;(2)受人为经营干扰的影响,毛竹种群死亡率随龄级增加而增加,生命期望减少;(3)毛竹种群的存活曲线类型为Ⅲ型,为增长型种群;(4)用毛竹大小替代年龄作为划分龄级指标,得出存活曲线类型相反,表明竹类植物用大小替代年龄作为龄级划分指标时会产生错误;(5)毛竹的数量特征决定着生物量和生产力配置,各龄级和径级生物量和生产力大小与个体数目有关,生产力配置还和年龄有关。从实践上看,毛竹科学的人为经营干扰维持了较好的种群结构,利于获得持续的立地生产力。
The quantity features and biomass structure of Phyllastachys heterocycla var.pubescens population were studied in Changning,Sichuan,and its specialty was discussed in this paper.The results showed as follows:(1)Because of its special growth features,no relation existed between age and size,and no correlation was found between age and size structure of P.heterocycla var.pubescens population;(2) Influenced by the disturbance of bamboo management,the death ratio increased along with increasing age grade,but the life expectance(ex) decreased;(3) The survival curve of P.heterocycla var pubescens population was type Ⅲ,a increasing population;(4) Using the size as an index of age grade instituting for age,the survival curve was got,implying that the error was produced when the size was used as an index of age grade in bamboo plants;(5) The quantity feature of P.heterocycla var.pubescens determined the biomass and productivity allocation of each age grade and diameter grade,which were related to the individual amount,and the productivity allocation was related to the age of individual bamboo.Practically,the disturbance of scientific management maintained a better population structure,and was convenient for obtaining the sustainable productivity of P.heterocycla var.pubescens.

关键词(KeyWords)： 毛竹;数量特征;生物量;种群
Phyllastachys heterocycla var.pubescens,Population,Quantity feature,Biomass

Abstract:

Keywords:

基金项目(Foundation): “江河滩地生态修复与综合治理技术试验示范”(2006BAD03A);; “毛竹生态经营技术”(2006BAD19B0302);; 国家林业局生态环境与资源实验室项目

作者(Author): 何亚平,杨执菊,蒋俊明,费世民,陈秀明,余英,唐森强
HE Ya-ping1 YANG Zhi-ju2 JIANG Jun-ming1 FEI Shi-min1 CHEN Xiu-ming1 YU Ying3 TANG Sen-qiang3(1.Sichuan Academy of Forestry,Chengdu 610081,2.Forestry Bureau of Litang County,Litang 627550,3.Forestry Bureau of Changning County,Changning 644000,Sichuan Province)

DOI: 10.16779/j.cnki.1003-5508.2008.03.003

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