CAJ | 학술논문

鼎湖山季风常绿阔叶林的建群种黄果厚壳桂，在近20年的监测过程中出现了死亡个体数量明显大于新增的现象。为此以黄果厚壳桂12 a的连续监测数据为依据，根据群落受到的干扰程度划分为重度干扰和轻度干扰2个阶段，统计其死亡动态。分干扰阶段，采用空间二元点格局L12方程分析，检测新增个体与死亡个体之间的关系。结果显示，重度干扰阶段，死亡个体48．2％是4 cm以下小树；而轻度干扰阶段，10 cm以上的死亡个体数占到死亡总数的80．5％。1992年新增个体，与1999年死亡和2004年死亡个体之间有较大尺度的正相关性，而1999年新增个体与2004年死亡个体间，仅在取样尺度1m时表现出空间显著正相关。先亡个体与后增个体的空间关联检测，仅发现1999-2004年死亡个体与2004年新增个体之间，小尺度上（取样尺度＜5 m，6～8 m）有显著正相关性。12年间死亡个体数量是新增数量的2.29倍，死亡个体主要是1992年以来的新增个体。严重的干扰加速了季风常绿阔叶林的演替进程，在以后的监测过程中，应严防重度干扰的出现，确保地带性植被季风常绿阔叶林群落正常的发展和演替。
정호산계풍상록활협림적건군충황과후각계，재근20년적감측과정중출현료사망개체수량명현대우신증적현상。위차이황과후각계12 a적련속감측수거위의거，근거군락수도적간우정도화분위중도간우화경도간우2개계단，통계기사망동태。분간우계단，채용공간이원점격국L12방정분석，검측신증개체여사망개체지간적관계。결과현시，중도간우계단，사망개체48．2％시4 cm이하소수；이경도간우계단，10 cm이상적사망개체수점도사망총수적80．5％。1992년신증개체，여1999년사망화2004년사망개체지간유교대척도적정상관성，이1999년신증개체여2004년사망개체간，부재취양척도1m시표현출공간현저정상관。선망개체여후증개체적공간관련검측，부발현1999-2004년사망개체여2004년신증개체지간，소척도상（취양척도＜5 m，6～8 m）유현저정상관성。12년간사망개체수량시신증수량적2.29배，사망개체주요시1992년이래적신증개체。엄중적간우가속료계풍상록활협림적연체진정，재이후적감측과정중，응엄방중도간우적출현，학보지대성식피계풍상록활협림군락정상적발전화연체。
The constructive species Cryptocarya concinna of monsoon evergreen broad leaved forest located in Dinghushan natural reserve was monitored over 20 years.A phenomenon that number of dead individuals was signif-icantly greater than newly increased individuals was observed.In this study,based on datas C.concinna for 12 years,community were divided severe interference and light interference stages by interference degree and dynamics death of C.concinna was statistics.Used the spatial binary point pattern L-function to analyze associations between new and dead individuals at different interference stages.The study results showed that 48.2% dead individuals were small size trees with DBH less than 4 cm in severe interference stage,while 80.5%dead individuals were big size trees with DBH more than 10 cm.New individual occurred in 1992 were positively associated with dead tree number in 1999 and 2004 at some scales.However,when sampling scale was less 1 m,only found a spatial posi-tive correlation between new individual in 1999 and dead tree in 2004.Spatial correlation analysis of dead trees in previous stage and new trees indicated that trees death number occurred from 1999 to 2004 were positively correla-ted to dead trees number counted in 2004 at a small scale (sampling scale was less 5 m).The number of tree death in 12 years was 2.29 times the number of new added trees.Dead trees were mainly those individuals newly in-creased since 1992.Severe interference accelerated succession process of community.Therefore,in the process of future monitoring,we should take strict precautions against severe interference,and insure zonal vegetation mon-soon evergreen broad leaved forest normally development and succession.