Browse > Article

Temporal and Spatial Variation Analysis of Suspended Solids, Ionic Contents, and Habitat Quality in the Woopo Wetland Watershed  

Bae, Dae-Yeul (School of Bioscience and Biotechnology, Chungnam National University)
Choi, Ji-Woong (School of Bioscience and Biotechnology, Chungnam National University)
An, Kwang-Guk (School of Bioscience and Biotechnology, Chungnam National University)
Publication Information
Korean Journal of Ecology and Environment / v.39, no.4, 2006 , pp. 498-507 More about this Journal
Abstract
The main objective of present study was to evaluate how seasonal rainfall influenced natural habitat conditions of 10 metric habitat variables along with ionic conditions and suspended solids in the Woopo Wetland during August 2002-July 2003. Largest spatial variabilities in total suspended solids (TSS) occurred during the summer monsoon and the inorganic suspended solids (ISS), expressed as a inorganic proportion of total solids, showed linearly increasing trend from the upstream to downstream. This phenomenon was mainly attributed to counter flow of turbid water from the main Nakdong-River. During the flooding, ISS : TSS ratio showed large increases (92%) in the downstream than the upstream (43%). For this reason, transparency declined (mean=0.13 m, range=0.08-0.21 m) largely in the downstream reach and thus, chlorophyll-a concentration showed low values (range: $4.2-8.6\;{\mu}g\;L^{-1}$), indicating a direct influence on primary productivity or algal growth by inorganic turbidity. In the 2nd survey, ISS averaged 4.0 mg $L^{-1}$ (3.3-4.8 mg $L^{-1}$), thus the ISS decreased by 14 fold, compared to the ISS in the 1st survey during the flooding, while organic suspended solids (OSS) values were greater than those of ISS, indicating a dominance of organic solids. This condition was similar to solid contents in the 3rd survey, but showed a large difference compared to the 4th survey during the growing season. Habitat health assessments, based on 10 metric habitat variables, showed that QHEI values were greatest in the growing season (May) than any other seasons and largest spatial variations occurred in the 2nd survey. Overall, dataset suggest that seasonal episodic flooding during the monsoon may largely contribute nutrient cycling and sediment contents in the Woopo Wetland and Topyung Stream.
Keywords
ionic content; habitat health; wetland; suspended solid; QHEI; seasonality;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Adamus, P.R. and L.T. Stockwell. 1983. A method for wetland functional assessment: VII. Critical review and evaluation concepts, US Dept. Transportation, Fedral Highway Administration, Report FHWQ IP: 82-83
2 An, K.G., S.S. Park and J.Y. Shin. 2002. An evaluation of a river health using the index of biological integrity along with relations to chemical and habitat conditions. Korea. Korean J. Limnol. 31: 273-281
3 Plafkin, J.L., M.T. Barbour, K.D. Porter, Gross, S.K. and R.M. Hughes. 1989. Rapid bioassessment protocols for use in streams and rivers: benthic macroinvertebrate and fish. EPA/444/4-89-001. Office of water regulations and standards. US EPA. Washington. DC, USA
4 Son, M.W. and Y.G. Jeon. 2003. Physical geographical characteristics of natural wetlands on the downstream reach of nakdong River. J. KRG 9: 66-76
5 Gersberg, R.M., R.B. Renner, S.R. Lyon and B.V. Elkins. 1987. Survial of bacteria and viruses in municipal wastewater applied to artificial wetlands. 237-245. In: Aquatic plants for water treatment and resource recovery (K.R. Reddy and W.H. Smith, eds). Magnolia publishing lac. Orlando, Florida
6 Yang, H.M. 2003. Total phosphorus removal in Cattail wetland purifying effluent from a night soil treatment plant during its initial operation. J. KOSERRT 6: 49-55
7 Park, E.J. 2001. Research trend and subject on coastal wetland evolution. J. KAOPG. 35: 27-43
8 Ann, S.W., W.F. Chen, Y.X. Sh, and Q.H. Mi. 2003. Influence of the river ceasing on wetland environment in the yellow river delta. Journal of the Environmental Sciences 12: 139-144   DOI
9 US EPA. 1993. Nitrogen control manual. Office of research and developmenr. Washington, D.C. 249- 270
10 A.P.H.A. 1985. Standard methods for the examination of water and waste water. 16th ed. New York, American Public Health Association. 874pp
11 Koo, B.H. and K.G. Kim. 2001. A study on the assessment for the functions of inland wetlands using RAM (Rapid Assessment Method). Korea J Env. Res and Tech. 4: 38-48
12 Kwon, D.H. 2006. Results of the research on Korea's wetlands and tasks. Journal of the Korean Geomorphological Association 13: 25-34
13 Barbour, M.T., J. Gerritsen, B.D. Snyder and J.B. Stribling. 1999. Rapid bioassessment protocols for use in streams and wadeable rivers: periphyton, benthic macroinvertebrates and fish, 2nd ed. EPA 841-B-99-002
14 Kim, H.S. 2001. Seasonal changes of phytoplankton community in the Woopo and Mokpo Swamp. Korean J. Limnol. 34: 90-97