加拿大一枝黄花与群落内其他植物的种间联结关系  

Species Association between Solidago canadensis and Other Plants

作　　者：王立成[1] 褚建君[1] 

机构地区：[1]上海交通大学生命科学技术学院,上海200240

出　　处：《上海交通大学学报（农业科学版）》2007年第2期115-119,共5页Journal of Shanghai Jiaotong University(Agricultural Science)

基　　金："十一五"国家科技支撑计划项目(2006BAD08A09)

摘　　要：采用Pearson点相关系数(point correlation coefficient)的方法,研究了加拿大一枝黄花(Solidago canadensis L.)与群落内其他植物种群之间的联结关系。结果表明,作为群落的优势种,加拿大一枝黄花与紫菀、狗牙根、葎草、一年蓬、田菁、苍耳等6个种群表现为正联结关系,与狗尾草、稗草、空心莲子草、狼尾草、马唐、千金子、牛筋草、辣蓼等8个种群表现为负联结关系。χ2检验表明,这种联结关系比较松散,说明加拿大一枝黄花在群落内具有较强的独立性。可以推断,加拿大一枝黄花发生量的上升,将损害当地原有植物群落的物种多样性。Method of point correlation coefficient was used to study the species association between Solidago canadensis and other plant populations in no-tiUed fields. The result obtained showed that there were positive associations between Solidago canadensis and Aster tataricus ,Setaria viridis ,Humulus scandens ,Erigeron annum, Sesbania cannabina and Xanthium sibiricum, while there were negative associations between Solidago canadensis and Pennisetum alopecuroide, Echinochloa crusgalli, Digitaria sanguinalis, Leptochloa chinensis, Alternanthera philoxeroides, Pennisetum alopecuroides, Eleusine indica and Polygonum hydropiper. χ^2 test implied that these species associations were weaker and if the weed Solidago canadensis develops its pepulation continuously, the local nlant diversity would be decreased.

关 键 词：加拿大一枝黄花 种间联结关系 植物多样性 

分 类 号：S451.1[农业科学—植物保护]