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《Journal of Anhui Agricultural Sciences》 2009-27
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Preliminary Studies on C and N Cycle of Four Asteraceae Plants and Soil

LI Su-li et al(Agricultural College of Guangxi University,Nanning,Guangxi 530004)  
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.
【Fund】: 广西大学科学基金资助(X071059)
【CateGory Index】: S154.4
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