CAJ | 학술논문

台湾水青冈为我国特有的国家 II 级重点保护野生植物，被 IUCN 定为渐危种，其为建群种的群落更是罕见.浙江清凉峰国家级自然保护区有较大面积的台湾水青冈群落，为了解该保护区台湾水青冈种群的更新特点及影响其生长的生境因子，在保护区内建立了1 hm2台湾水青冈群落动态样地，于2006年和2011年对胸径≥1 cm 的个体进行每木定位调查和复查.基于调查数据，对台湾水青冈种群的结构、补员和死亡情况进行了比较分析，并编制了台湾水青冈种群特定时间生命表，绘制其死亡率曲线和消失率曲线，同时利用冗余分析(RDA)法分析了影响台湾水青冈更新的主要生境因子.结果表明：(1)5年间样地内台湾水青冈个体从448株增长到468株，增幅为4．3％；(2)水青冈种群径级多度分布呈反“J”形，显示种群结构稳定；(3)死亡率和消失率曲线变化趋势基本一致，分别在第Ⅳ龄级、第Ⅴ龄级、Ⅸ龄级出现3个峰值；(4)4个地形因子(海拔、凹凸度、坡度和坡向)均对台湾水青冈的生长有明显的影响.
태만수청강위아국특유적국가 II 급중점보호야생식물，피 IUCN 정위점위충，기위건군충적군락경시한견.절강청량봉국가급자연보호구유교대면적적태만수청강군락，위료해해보호구태만수청강충군적경신특점급영향기생장적생경인자，재보호구내건립료1 hm2태만수청강군락동태양지，우2006년화2011년대흉경≥1 cm 적개체진행매목정위조사화복사.기우조사수거，대태만수청강충군적결구、보원화사망정황진행료비교분석，병편제료태만수청강충군특정시간생명표，회제기사망솔곡선화소실솔곡선，동시이용용여분석(RDA)법분석료영향태만수청강경신적주요생경인자.결과표명：(1)5년간양지내태만수청강개체종448주증장도468주，증폭위4．3％；(2)수청강충군경급다도분포정반“J”형，현시충군결구은정；(3)사망솔화소실솔곡선변화추세기본일치，분별재제Ⅳ령급、제Ⅴ령급、Ⅸ령급출현3개봉치；(4)4개지형인자(해발、요철도、파도화파향)균대태만수청강적생장유명현적영향.
Fagus hayatae is one of the second class nationally protected plants in China.It is listed by IUCN as an en-dangered species.Moreover,plant community dominated by F .hayatae is scarce.To explore the regeneration dynam-ics of F .hayata in Qingliangfeng National Nature Reserve in Zhejiang,we established 1 hm2 dynamic plot in 2006,all woody plants with DBH (diameter at breast height)≥1 cm in the plot were tagged,mapped,measured and identified. Based on data from censuses between 2006 and 2011,the DBH structures and rates of mortality and recruitment were analysed.We built a static life table,and compiled the mortality rate and disappearing curve of F .hayata .Also,we analysed the environmental factors’effects on the growth rates and DBH structure of F .hayata using redundan-cy analysis (RDA).The results were as follows:(1)A total of 20 stems were recruited and the population size in-creased by 4.3% in five years;(2)The size class abundances structure represented a reverse J shape,indicating a sta-ble population structure;(3)The mortality rate curve and disappearing curve had similar shape,both with local peaks at the 4 th ,6 th and 10 th age classes;(4)The growth of F .hayata was mostly affected by convexity and slope,while less influenced by elevation and aspect.