Effects of Submergence and Nitrogen Concentration on the Resources Utilization of Alternanthera philoxeroides

Wen Juan Ding; Hua Yong Zhang; Fang Juan Zhang

doi:10.4028/www.scientific.net/AMR.864-867.239

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 864-867Effects of Submergence and Nitrogen Concentration...

Effects of Submergence and Nitrogen Concentration on the Resources Utilization of Alternanthera philoxeroides

Abstract:

This study examined the effects of submergence and nitrogen concentration on biomass allocation and nutrients utilization of an invasive plant Alternanthera philoxeroides. In the experiment, A. philoxeroides was applied to two water level treatments (0 and 25cm above the surface) across with two nitrogen concentrations (0 and 10 mg/l N). The results showed that submergence decreased leaf fraction and increased stem fraction, but high N changed this situation. In submergence, high N increased leaf fraction but decreased stem fraction due to leaves survival and maintenance. Submergence decreased root fraction and the content of soluble sugar in stem. The results suggested that high N concentration could counteract the negative effects of submergence. Therefore, the risk of A. philoxeroides invasion might be enhanced by nitrogen pollution in fluctuating water bodies, and should be attention intensely.

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Periodical:

Advanced Materials Research (Volumes 864-867)

Pages:

239-242

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.864-867.239

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Online since:

December 2013

Authors:

Wen Juan Ding, Hua Yong Zhang*, Fang Juan Zhang

Keywords:

Alternanthera philoxeroides, Biological Invasion, Nitrogen Enrichment, Submergence, Water Level

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