摘要
对杉木纯林、杉木拟赤杨混交林、杉木观光木混交林的不同树种冠幅的分形维数进行计算和比较 .结果表明 :杉木观光木混交林中杉木种群冠幅分形维数 >杉木拟赤杨混交林中杉木种群冠幅分形维数 >杉木纯林冠幅分形维数 ;杉木观光木混交林中观光木种群冠幅分形维数 >杉木拟赤杨混交林中拟赤杨种群冠幅分形维数 .说明杉木混交林种间竞争小 ,而杉木种内竞争激烈 ,同时杉木同观光木之间的种间竞争小于杉木同拟赤杨之间的种间竞争 .图 4表 2参
Study on spatial distribution of plant population with different crown breath can give the information for the mechanism of population distrbution. Fractal geometry of crown is considered to be a very useful tool for dealing with the distribution of crown. In this paper, the fractal dimension of different species crown in the pure Chinese fir plantation,the Chinese fir plantation mixed with Alniphyllum fortumei and the one with Tsoongiodenron odorum were calculated and compared. The results indicated that the fractal dimension of Chinese fir which mixed with Tsoongiodenron odorum was larger than the others; the fractal dimension of the Chinese fir mixed plantation with Alniphyllum fortume are larger than that of the pure Chinese fir plantation; the fractal dimension of Tsoongiodenron odorum was larger than that of Alniphyllum fortumei. These showed that the interspecific competition of variable populations was not intense, but the intraspecific competition was very intense. Fig 4, Tab 2, Ref 16
出处
《应用与环境生物学报》
CAS
CSCD
2003年第5期455-459,共5页
Chinese Journal of Applied and Environmental Biology
基金
福建省科技厅重大资助项目 (2 0 0 1 F 0 0 7
2 0 0 1 F 0 2 5)~~
关键词
杉木
人工林
经营模式
树冠
分形特征
fractal dimension
canopy
Cunninghamia lanceolata(Lamb.)Hook
modified simplex method
