广西植物2016，Vol.36Issue(7)：848-858,11.DOI:10.11931/guihaia.gxzw201405048
广西大青山南亚热带森林植物群落的种间联结性
Interspecific associations between south subtropical forest plant community species in Daqingshan of Guangxi
摘要
Abstract
The natural secondary forest in Southwest Guangxi is rich in typical forest communities; however, little is known about the inter specific associations of the dominate species. Hence, our objective was to investigate how the dominant species in the communities interact with each other. We sampled 1 km2 in the natural secondary forest, se-lected 17 tree species, 8 shrub species and 12 herb species according to importance values and studied inter specific associations by using variance ratio ( VR) analysis and χ2-tests, percentage co-occurrence( PC) and association coef-ficient ( AC) . There was a significant positive correlation of overall association among trees, an insignificant negative correlation among shrubs, and an insignificant positive correlation among herbs. χ2-tests showed that there was a pos- <br> itive association for 81 pairs and a negative association for 19 pairs and 5 pairs did not have a relationship among trees. There was a positive association for 14 pairs and a negative association for 12 pairs and 2 pairs did not have a relation-ship among shrubs. A positive association was found for 32 pairs and a negative association for 24 pairs and 5 pairs did not show a relationship among herbs. The main tree species were connected more closely whereas main shrub species association was loose and main herb species association is weak. The main causes for different associations were as-sumed to be ecological habits, community succession stage among others. In the future,the management and protection of the natural environment should be more strengthen,if necessary,manual intervention may be appropriate in order to promote the natural secondary forest succession. The research will provide the information only for understanding the current situation and trends in its plant community succession,but also for the future research on its plant community succession regular and the protection of its species diversity.关键词
大青山/优势种/种间联结性/天然次生林/南亚热带Key words
Daqingshan/dominate species/interspecific association/natural secondary forest/south subtropical分类
农业科技引用本文复制引用
农友,郑路,贾宏炎,卢立华,明安刚..广西大青山南亚热带森林植物群落的种间联结性[J].广西植物,2016,36(7):848-858,11.基金项目
国家“十二五”农村领域科技计划项目(2012BAD22B0105) （2012BAD22B0105）
中央级公益性科研院所基本科研业务费专项资金项目(CAFYBB2012001)[Supported by National Science and Technology Project of“12th Five-Year” in Rural Areas (2012BAD22B0105) （CAFYBB2012001）
Central Public-interest Scientific Insti-tution Basal Research Fund ( CAFYBB2012001)]。 （ CAFYBB2012001）
