威信县金佛山方竹生长发育规律研究  

Study on the Growth and Development Law of Chimonobambusa utilis in Weixin County

作　　者：黄维 董文渊[2] 钟欢 吴义远 HUANG Wei;DONG Wen-yuan;ZHONG Huan;WU Yi-yuan(Weixin County Forestry and Grassland Bureau,Weixin 657900,Yunnan,China;Institute of Qiong Bamboo,Southwest Forestry University,Kunming 650233,Yunnan,China;School of Forestry,Nanjing Forestry University,Nanjing 210037,Jiangsu,China)

机构地区：[1]威信县林业和草原局,云南威信657900 [2]西南林业大学筇竹研究院,云南昆明650233 [3]南京林业大学林学院,江苏南京210037

出　　处：《竹子学报》2023年第1期18-22,共5页Journal of Bamboo Research

基　　金：云南省科技惠民计划项目(2013CA003);中央财政林业科技推广示范资金项目(〔2019〕TG14号)。

摘　　要：【目的】为探究金佛山方竹(Chimonobambusa utilis)竹笋出土动态、高粗生长过程、成竹与退笋规律。【方法】以威信县麟凤镇斑鸠村大汉寨金佛山方竹人工林为研究对象,基于竹笋—幼竹生长动态定位观测数据,分析金佛山方竹生长发育规律。【结果】威信县金佛山方竹笋期历时45 d,始于9月中旬,终于10月下旬,可划分为初期、盛期和末期3个阶段,成竹率、退笋率分别为78.71%和21.29%。竹笋—幼竹高生长期50 d,呈现“慢—快—慢—停止”S型生长曲线;地径生长期30 d,生长过程为“快—慢—较慢—停止”曲线;幼竹胸径生长期持续25 d。【结论】研究结果可为竹林笋期调控、护笋养竹、合理施肥和定向培育提供科学依据。【Objective】In order to explore the bamboo shoot appearance dynamics,growth process of tall and thick bamboo shoots,and the regularity of bamboo shoot formation and degradation.【Method】The plantation of Chimonobambusa utilis in Dahanzhai,Banjiu Village,Linfeng Town,Weixin County was as the research object,the growth and development laws of Ch.utilis were analyzed based on dynamic location observation data of bamboo shoots and young bamboo growth.【Result】The results showed that the bamboo shoot period of Ch.utilis in Weixin County lasted for 45 days.It started in mid-September and ended in late October.It can be divided into three stages:initial stage,high stage and late stage.The rate of forming bamboo and returning bamboo shoots were 78.71%and 21.29%respectively.Bamboo shoot-young bamboo had a high growth period of 50 days,showing an S-shaped growth curve of“slow-fast-slow-stop”.The growth period of ground diameter was 30 days,and the growth process followed a“fast-slow-relatively slow-stop”curve.The growth period of young bamboo diameter at breast height lasted 25 days.【Conclusion】The study results can provide scientific basis for the regulation of bamboo shoot stage,bamboo shoot protection and bamboo cultivation,rational fertilization and directional cultivation.

关 键 词：金佛山方竹 出笋 高生长 粗生长 威信县 

分 类 号：S795[农业科学—林木遗传育种]