TITLE

Effects of interspecific competition on the growth and competitiveness of five emergent macrophytes in a constructed lentic wetland

AUTHOR(S)
Hong, Mun; Son, Chang; Kim, Jae
PUB. DATE
August 2014
SOURCE
Paddy & Water Environment;Aug2014 Supplement, Vol. 12, p193
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A competition experiment was conducted for two years, to assess the effects of interspecific competition between five macrophytes on growth and coverage, in a constructed wetland with a natural water regime. We compared growth results from the competition experiment with those from a field survey in pure stands, where interspecific competition does not occur. The shoot height values of most species in the constructed wetland did not reach the maximum values, compared to those from the field data, indicating that the effect of interspecific competition was notable on the shoot height in the constructed wetland. Zizania latifolia showed the highest growth performance in the constructed wetland. Although Typha latifolia showed a high above-ground dry weight value, similar to that of ZL, TL did not expand its coverage as wide as that of ZL in the constructed wetland. Relatively high density and individual dry weight among species determined the high AGDW of ZL and TL, respectively, in the pure stands. In contrast, high individual dry weight and density among planted species determined the high AGDW of ZL and TL, respectively, in the constructed wetland, indicating that interspecific competition seemed to cause different ecological responses of plant, compared to a non-competitive situation. The dominance of ZL in the competition experiment appeared to be facilitated by planting material of seedling form, relatively rapid growth in an early growth phase, natural water regime in a lentic sheltered site, non-eutrophic water condition, and the absence of companion species belonging to the same genus.
ACCESSION #
97731106

 

Related Articles

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics