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Position: Home > Articles > Preliminary Studies on C and N Cycle of Four Asteraceae Plants and Soil Journal of Anhui Agricultural Sciences 2009,37 (27) 13408-13411

4种菊科植物与土壤间碳氮循环的初步研究

作  者:
李素丽;李志刚;孙倩
单  位:
广西大学农学院
关键词:
生物入侵;飞机草;紫茎泽兰;碳氮循环
摘  要:
从植物-土壤碳氮循环入手,对比研究外来入侵种飞机草、紫茎泽兰,土著种泽兰、佩兰与土壤间碳氮循环的差异,结果表明,飞机草和紫茎泽兰极大改变了生态系统中的碳、氮流,有利于加速被入侵生态系统的养分循环;且显著甚至极显著增大了生态系统中的植物碳、氮库,对土壤碳、氮库有影响但不显著;因此加快了生态系统的碳、氮循环,且这种改变对其自身有正反馈效应,这可能是其入侵成功的机制之一。
译  名:
Preliminary Studies on C and N Cycle of Four Asteraceae Plants and Soil
作  者:
LI Su-li et al(Agricultural College of Guangxi University,Nanning,Guangxi 530004)
关键词:
Biological invasion;Eupatorium odoratum;Eupatorium adenophorum;Carbon and nitrogen cycle
摘  要:
Starting from the plant-soil nitrogen and carbon cycle,the difference of C and N cycle of exotic invasive plants Eupatorium odoratum and E.adenophorum and relative native species E.japonicum and E.fortunei and soil were compared and studied.The results showed that C and N flux in the ecosystem were changed patently by E.odoratum and E.adenophorum,which was propitious to quicken nutrient cycling of invaded ecosystem.Meanwhile,C and N stock in plants were multiplied extremely and remarkably and soil C and N stock had slight changes.So C and N cycle in the ecosystem were quickened and these changes had a positive feedback effect on itself.And this might be one successful invasion mechanism.

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