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http://dx.doi.org/10.17663/JWR.2013.15.1.009

Relationship of Initial Density, Biomass and Tuber Productivity of Scirpus planiculmis in the Nakdong River Estuary  

Yi, Yong Min (Department of Ecological Engineering, Pukyong National University)
Yeo, Un Sang (Busan Development Institute)
Sung, Kijune (Department of Ecological Engineering, Pukyong National University)
Publication Information
Journal of Wetlands Research / v.15, no.1, 2013 , pp. 9-17 More about this Journal
Abstract
Scirpus planiculmis dominated in Nakdong river estuary is known as food for birds visiting to Nakdong river estuary and plays an important role in material cycle and food web, while repeating growth and production, decomposition process in 1-year interval. Therefore, if it is able to predict effectively biomass or tuber production of Scirpus planiculmis which is food source for estuarine organisms or birds, it can provide very useful information on the Nakdong river estuary management. In this study, regression equation that can predict the tuber production, food for birds, was obtained using initial density of Scirpus planiculmis that can minimize the disturbance of ecosystem and is faster and easier. The correlation analysis results show that density, biomass and tuber production have liner relationship(p<0.001) with 0.6103~0.9950 of correlation coefficients. In addition, the regression equations have high coefficients of determination of 0.3696~0.7145 and it shows that it is able to predict biomass or tuber production while using the estimated regression equation obtained from relationship among the initial density, biomass and tuber production. The results of this study are expected to utilize effectively the management of estuary ecosystem such as management on food source for migratory birds visiting to Nakdong river estuary.
Keywords
Estuary management; correlation analysis; regression equation; bird food source; tuber production estimation;
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