水竹无性系种群生物量结构研究——以云南省彝良县海子坪自然保护区天然水竹无性系种群为例

对云南省彝良县海子坪省级自然保护区天然水竹无性系种群生物量结构的变化规律进行了研究.结果表明:1)水竹无性系种群分株生物量与胸径、株高及胸径平方与株高乘积的关系密切.2)水竹无性系种群分株各构件单位含水率随着年龄的增长先升后降,无性系种群分株含水率1,2,3年生水竹均高于4,5年生水竹.3)水竹无性系种群分株各构件单位生物量由大到小依次为秆,鞭,枝,蔸,根,叶;地上部分生物量大于地下部分;在不同年龄由大到小依次为1年生,2年生,3年生,4年生,5年生,其中以1年生水竹最大,5年生最小.

Structure of biomass of Phyllostachys heteroclada clonal population: A case on natural Phyllostachys heteroclada cional population of Haiziping natural reserve zone in Yiliang County of Yunnan Province

Changing laws of biomass structure of Phyllostachys heteroclada clonal population in the Haiziping,which is a provincial level natural reserve zone in Yiliang county of Yunnan Province,were investigated the results showed that there was a close relationship between biomass of ramets and DBH,height and DBH square and height product;ramets biomass and the moisture content of the modular per unit decreased along with the age,per unit biomass of the modular of ramets ranged from big to small ie culm,rhizonme,branch,bamboo stap,root,leaf;the biomass above-ground was greater than that underground;per unit biomass of the modular of ramets in different age ranged from big to small,ie 1-year-old,2-year-old,3-year-old,4-year-old,5-year-old,of which 1-year-old had the highest,5-year-old least.