广西植物
廣西植物
엄서식물
GUIHAIA
2014年
5期
657-663
,共7页
地面生苔藓植物%北京百花山自然保护区%典范对应分析%环境因子
地麵生苔蘚植物%北京百花山自然保護區%典範對應分析%環境因子
지면생태선식물%북경백화산자연보호구%전범대응분석%배경인자
the terrestrial bryophyte%the Mt.Baihua National Nature Reserve in Beij ing%Canonical Correspondence Analysis (CCA)%environmental variable
运用典范对应分析法,定量分析了北京百花山自然保护区37个森林植被样地中33种主要地面生苔藓植物与生态环境之间的关系,结果表明:该区森林植被样地与环境因子的关系呈现多元化特点:相同植被聚为一组、环境因子相似的植被聚为一组、植被相同环境因子不同归为不同组和生境特殊的植被自成一组。得出该区多数地面生苔藓植物的分布与乔木郁闭度的相关性最大且与人为干扰程度密切相关,少数种类与草本层盖度和灌木盖度呈正相关。此外凋落物盖度、海拔、苔藓植物的生长基质也直接影响苔藓植物的分布。
運用典範對應分析法,定量分析瞭北京百花山自然保護區37箇森林植被樣地中33種主要地麵生苔蘚植物與生態環境之間的關繫,結果錶明:該區森林植被樣地與環境因子的關繫呈現多元化特點:相同植被聚為一組、環境因子相似的植被聚為一組、植被相同環境因子不同歸為不同組和生境特殊的植被自成一組。得齣該區多數地麵生苔蘚植物的分佈與喬木鬱閉度的相關性最大且與人為榦擾程度密切相關,少數種類與草本層蓋度和灌木蓋度呈正相關。此外凋落物蓋度、海拔、苔蘚植物的生長基質也直接影響苔蘚植物的分佈。
운용전범대응분석법,정량분석료북경백화산자연보호구37개삼림식피양지중33충주요지면생태선식물여생태배경지간적관계,결과표명:해구삼림식피양지여배경인자적관계정현다원화특점:상동식피취위일조、배경인자상사적식피취위일조、식피상동배경인자불동귀위불동조화생경특수적식피자성일조。득출해구다수지면생태선식물적분포여교목욱폐도적상관성최대차여인위간우정도밀절상관,소수충류여초본층개도화관목개도정정상관。차외조락물개도、해발、태선식물적생장기질야직접영향태선식물적분포。
The method of Canonical Correspondence Analysis was used to analyzed the data of terrestrial bryophytes of 37 forest sites in Mt.Baihua.The relationships between the terrestrial bryophytes and the environmental variables were revealed in the biplots of CCA:same forests became a group,forests in similar environment get together,the same forest in different environment became a group and some forest in special environment gather a group.Bassed on the correlation coefficients of the environmental variables with the first two axes,the environmental variables that decided the distribution of the 33 bryophytes were canopy density,shrub coverage,altitude,base and human disturb-ance.CCA two-dimensional ordination diagram of 3 7 sites of forests-enviromental factors showed the diversities char-acter between the sites and environmental variables.