毛竹纯林和混交林竹笋-幼竹高生长差异分析  

Analysis on Difference in Height Growth of Phyllostachys edulis Pure and Mixed Stands

作　　者：洪宜聪 

机构地区：[1]沙县林业局,福建沙县365500

出　　处：《西南林业大学学报（自然科学）》2013年第5期64-68,共5页Journal of Southwest Forestry University：Natural Sciences

基　　金：国家星火计划项目(2012GA720007)资助;中央财政林业科技推广示范资金跨区域重点项目([2010]TK025)资助

摘　　要：为摸清不同类型毛竹林竹笋-幼竹高生长差异,选择立地条件和经营水平一致的毛竹纯林、竹杉混交林和竹阔混交林,调查分析竹笋-幼竹高生长特征及其变化规律,拟合竹笋-幼竹高生长节律方程。结果表明:不同类型毛竹林对竹笋-幼竹高生长产生不同影响,尤以毛竹纯林经营对其影响明显,竹笋-幼竹高生长时间缩短,立竹相对高度增高;不同类型毛竹林竹笋-幼竹高度、日生长量随时间变化均呈"慢—快—慢"的变化节律,但竹笋-幼竹高度、日生长量毛竹纯林在高生长上升期、盛期的前期明显较竹杉、竹阔混交林大,在高生长盛期的中后期提前急剧下降,竹笋-幼竹高度毛竹纯林在高生长盛期时较竹杉、竹阔混交林大,而后2种类型毛竹林竹笋-幼竹高度、日生长量均接近;不同类型毛竹林竹笋-幼竹高生长节律均可用逻辑斯缔方程拟合。To explore the differences in height growth of bamboo shoot and young bamboo plantation of different types of Phyllostachys edulis stands,the height growth property and its variation of bamboo shoot and young bamboo plantation were surveyed and the height growth rhythm equation was simulated by selecting plots of P.edulis pure stand,P.edulis-Cunninghamia lanceolata mixed stand and P.edulis-broadleaved mixed stand with consistent site condition and management level as study objects.The results showed that P.edulis stand types had different influences on its height growth characteristics,and the management of P.edulis pure stand had distinct impact on the height growth,which was expressed by the shortened height growth period for bamboo shoot and young bamboo plants,and the increased relative height of P.edulis pure stand.With growth time extending,height growth of bamboo shoot and young bamboo plantation and daily growth rate in the three stand types all showed the quick-slow-quick rhythm.However,the height of bamboo shoot and young bamboo plantation,and the daily growth rate for P.edulis pure stand were greater than those of in the other mixed stands at the rising period and early peak period of height growth stage,while those indexes of P.edulis pure stand decreased sharply at the middle and later peak periods of height growth stage.The height of bamboo plants in P.edulis pure stand was greater than that of in the mixed stands at the peak period of height growth stage.The height of bamboo plants and the daily growth rate of the two types of mixed stands tended to be close.The height growth rhythm of bamboo shoot and young bamboo plantations for different P.edulis stands might be well expressed by Logistic equation.

关 键 词：毛竹 高生长 纯林 竹杉混交林 竹阔混交林 

分 类 号：S718.5[农业科学—林学]