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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Wetlands Research
Journal Basic Information
Journal DOI :
Korean Wetlands Society
Editor in Chief :
Volume & Issues
Volume 16, Issue 4 - Nov 2014
Volume 16, Issue 3 - Aug 2014
Volume 16, Issue 2 - May 2014
Volume 16, Issue 1 - Feb 2014
Selecting the target year
Estimation and assessment of baseflow at an ungauged watershed according to landuse change
Lee, Ji Min ; Shin, Yongchun ; Park, Youn Shik ; Kum, Donghyuk ; Lim, Kyoung Jae ; Lee, Seung Oh ; Kim, Hungsoo ; Jung, Younghun ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 303~318
DOI : 10.17663/JWR.2014.16.4.303
Baseflow gives a significant contribution to stream function in the regions where climatic characteristics are seasonally distinct. In this regard, variable baseflow can make it difficult to maintain a stable water supply, as well as causing disruption to the stream ecosystem. Changes in land use can affect both the direct flow and baseflow of a stream, and consequently, most other components of the hydrologic cycle. Baseflow estimation depends on the observed streamflow in gauge watersheds, but accurate predictions of streamflow through modeling can be useful in determining baseflow data for ungauged watersheds. Accordingly, the objectives of this study are to 1) improve predictions of SWAT by applying the alpha factor estimated using RECESS for calibration; 2) estimate baseflow in an ungauged watershed using the WHAT system; and 3) evaluate the effects of changes in land use on baseflow characteristics. These objectives were implemented in the Gapcheon watershed, as an ungauged watershed in South Korea. The results show that the alpha factor estimated using RECESS in SWAT calibration improves the prediction for streamflow, and, in particular, recessions in the baseflow. Also, the changes in land use in the Gapcheon watershed leads to no significant difference in annual baseflow between comparable periods, regardless of precipitation, but does lead to differences in the seasonal characteristics observed for the temporal distribution of baseflow. Therefore, the Guem River, into which the stream from the Gapcheon watershed flows, requires strategic seasonal variability predictions of baseflow due to changes in land use within the region.
The Functional Selection for the Assessment of Ecosystem Service at Pond Wetland in Agricultural Landscape
Son, Jin-Kwan ; Shin, Min-Ji ; Shin, Ji-Hoon ; Kang, Dong-Hyeon ; Kang, Banghun ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 319~325
DOI : 10.17663/JWR.2014.16.4.319
A lot of Pond Wetland (Palustrine Wetland) are distributed in agricultural landscapes, Korea. These wetlands are evaluated as important resources for conservation of biodiversity. However, the study of Pond Wetland is rarely conducted except type classification in Korea. In this study, the function of pond wetland as ecosystem services is studied for conservation and utilization of wetland. Research was conducted in three steps; functionality analysis, functionality derivation, and importance analysis. A total of 22 features were derived by analyzing the previous studies. As a result of expert survey, 4 features were selected by each in the field of biological, environmental, and socio-culture among the 22 features. Importance was calculated by conducting a cross-functional features using Analytic Hierarchy Process (AHP). Finally, 10 ecosystem service functions of pond wetland were derived through expert survey; (1) Water Storage & Irrigation, (2) Vegetation Diversity, (3) Amphibian & Reptile Habitat, (4) Water Purification, (5) Aquatic Insect Habitat, (6) Nutriments Control was derived, (7) Groundwater Recharge, (8) Fishery Habitat, (9) Eco-Experience & Education, and (10) Aesthetic landscape. It is expected that this study is able to utilize in evaluation of pond wetlands ecosystem services by further study on analysis of functional importance and economic value index.
Study on Flooding Tolerance of Salix Species for Ecological Restoration of the River
Kim, Eun Jin ; Kang, Joon Gu ; Yeo, Hong Koo ; Kim, Jong Tae ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 327~333
DOI : 10.17663/JWR.2014.16.4.327
The vegetation composition for river restoration requires the introduction of plants which have strong flooding tolerance. A study of the growth characteristics of river plants according to the period of flooding is essential. Accordingly, this study measured shoots, leaf number, leaf greenness, dry weight of the plants of Salix species, analyzed their growth rate according to flooding tolerance and the period of flooding, and contrasted the results with those of a flooding experiment in turbid water. The results of this experiment showed that Koreensis is the plant which has the strongest flooding tolerance and flooding in fresh water leads to a much lower risk of the plants being withered than in high turbid water. In addition, the results showed that the condition of the period of flooding of twenty days and under contributes to more growth and development of the plants of Salix species than the condition of non-flooding.
Water Quality, Flora and Fauna of 7 Wetlands in Donghae City
Han, Gab-Soo ; Park, Jung Ho ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 335~352
DOI : 10.17663/JWR.2014.16.4.335
In this study, we investigated and analysed the water quality, distribution of the vegetation and the wildlife to seven wetlands in Donghae city. As a result, most of the wetlands was found to be very poor water quality and some specific pollutants from entering the wetland. A total of 234 taxa on vegetation were identified including 207 species, 24 varieties, 3 formaes, 168 genera and 69 families. 2 species were recorded as designated rare plant of Korea Forest Service. The naturalized plants were 27 species. The urbanization rate of naturalization index was 8.4% and 11.6% respectively. The number of benthic macroinvertebrate taxa was 35 species, 26 families, 12 orders, 5 classes and 3 phylums. Rare species were recorded 3 species. Taxa for fishes were 5 family and 5 species. Endangered wildlife was found 1 species. Most wetlands in Donghae city were the relatively small in size, and some wetlands were separately located from forest and river ecosystems. It was limited inflow and outflow of species into a wetland from the outside. However, various vegetation were found at whole wetlands and some special species also inhabited. The wetlands performed the role as a habitat of wild life.
Effects of Micro-topography on Vegetation Pattern in Dunchon-dong Wetland
Nam, Jong Min ; Jeon, Seung-Hye ; Choi, Ho ; Kim, Jae Geun ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 353~362
DOI : 10.17663/JWR.2014.16.4.353
The purpose of this study is to investigate the effect of micro-topography to vegetation pattern in Dunchon-dong wetland. To characterize the effect of micro-topography, changes in water level and vegetation pattern were monitored from 2007 to 2008. Depending on the relative elevation, the study site was divided into 4 sectors. The relative areas of sectors in ascending order were 11%, 10%, 18% and 24%, respectively. During investigation period, average water pH was 6.10 (
), electron conductivity was
-N concentration were
, and lower than 0.01mg/L, respectively. Water level was very changeable in low-water season because the area of lowest sector was small. This characteristic increased the effect of difference of accumulated precipitation from March to April in 2007 and 2008 to plant community composition in lower sectors. Different plant guilds dominated respective sectors and annual plants were major dominant species in the study site. This study suggested that the elevation gradients are necessary to create the habitats for various plant guilds in wetland.
Effects of elevated CO
concentration and increased temperature on the growth and crop yield of rice (Oryza sativa) cultivars in Korea -cv. Odaebyeo and cv. Saechucheongbyeo-
Lee, Eung Pill ; Jang, Rae Ha ; Cho, Kyu Tae ; You, Young Han ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 363~370
DOI : 10.17663/JWR.2014.16.4.363
We grew seedlings of Saechucheongbyeo and Odaebyeo of rice cultivars that are cultivated dominantly in the northern and middle regions of Korea under control(ambient condition), ambient
concentration+elevated temperature, and elevated
concentration+elevated temperature in order to study how growth responses and crop yield of major rice of Korea change as the global warming proceeds and compared the results. Aboveground biomass, belowground biomass, total biomass, and panicles weight per individual and ripended grain rate of cv. Saechucheongbyeo were the highest under control, but those of cv. Odaebyeo were the highest under elevated
concentration+elevated temperature. There was no difference in the number of panicles per individual of cv. Saechucheongbyeo and cv. Odaebyeo in these experiments. There was no difference in the number of grains per panicle of cv. Saechucheongbyeo among three environmental gradients, but that of cv. Odaebyeo was the highest under elevated
concentration+elevated temperature. Weight of a grain of cv. Saechucheongbyeo was highest under elevated
concentration+elevated temperature, but that of cv. Odaebyeo was the higher under ambient
concentration+elevated temperature and elevated
concentration+elevated temperature. Thus, if global warming continues in Korea, selection of rice cultivation varieties must be chosen carefully for commendation.
Study on Community Structure of Benthic Macro-Invertebrates Inhabiting in an Urban Restoration Stream, Gongchon-cheon, in Incheon City
Song, Yeong-Ju ; Ju, Yong-Don ; Park, Bo-Sun ; Lee, Hee-Jo ; Chae, Do-Young ; Kim, Jong-Myung ; Bae, Yang-Seop ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 371~378
DOI : 10.17663/JWR.2014.16.4.371
The subject of this study is the Gongchon-cheon which is one of the largest streams in Incheon and is closely related to lives of citizen. Comparative analysis is made on the changes of the environment and the ecological condition of Gongchon-cheon after the stream naturalization construction which is completed in July 2009. From the results of the survey, 32 species in 2004, 22 species in 2009 and 46 species in 2010 have been recorded. The number of the species decreased from 2004 to 2009 due to the disturbance of the river environment, and it increased in a short time from 2009 to 2010 because of the recovery of the environment. It demonstrates the stream naturalization construction providing enough environments (dikes and rapids) for the benthic macro invertebrates. The result of the present study is similar with the river's biology index, ESB index, and KSI index, and also it is similar with the pattern of the appearance, which illustrates that the species decreased during the naturalization construction, and increased after the stabilization since the finish of the naturalization construction, and it has been confirmed that the naturalization construction provides the better environment for the inhabitation of organisms.
Sewage Treatment Using a Double Media Reed Constructed Wetland
Seo, Jeoung-Yoon ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 379~388
DOI : 10.17663/JWR.2014.16.4.379
A sewage was treated using a serially combined vertical(VFCW) and horizontal flow double media (sand and zeolite for VFCW and sand and waste oyster-shell for HFCW) reed constructed wetland(HFCW) with intermittent feeding (see Fig. 1). The sewage was fed into the reed constructed wetland for 10 minutes every 6 hours at the hydraulic load of
. The summarized results were as follows: pH values in the effluent depended very heavily on oyster-shell height filled in the HFCW. They were maintained at less than pH 6.24 when the height of the oyster-shell layer was 200 mm. Influent DO(oxygen demand) values(average 0.19 mg/L) were increased in the VFCW(average 7.65 mg/L) and decreased again in the HFCW(average 6.49 mg/L). They were higher in the winter than in the summer. The OTR(oxygen transfer rate) was
in the VFCW and
in the HFCW. The removal efficiency of
-N was 80.17%(6.01
-N mg/L in the effluent). It was lower than that in the case where only zeolite was filled in the reed constructed wetland. But it was expected that treated sewage effluent using a double media reed constructed wetland with 300 mm zeolite layer could stably meet the Korean treated sewage effluent standard(20 mg T-N/L). Average removal efficiencies were SS 88.09%, BOD 88.12%,
85.58%, T-N 57.21%,
-N 80.17%, T-P 86.73%. Nearly, The concentration of
-N in the effluent of the VFCW was decreased in that of the HFCW. More than half of T-N in the effluent was
-N(7.92 mg/L) but the concentration of
-N in the effluent was average 0.90 mg/L. The removal efficiencies of T-P were 93.24%, 86.30% and 55.44% at the height of the oyster-shell-filled constructed wetland of 800 mm, 500 mm and 200 mm, respectively and therefore, they were proportional to oyster-shell height filled in the HFCW.
Development and Application of Coupled System for River Flow Analysis with Multi-dimensional Models in Nakdong River
Ahn, Jung Min ; Im, Toe Hyo ; Lee, In Jung ; Cheon, Se Uk ; Lyu, Siwan ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 389~402
DOI : 10.17663/JWR.2014.16.4.389
In this study, simulation technique with multi-dimensional model(EFDC), coupled with COSFIM and FLDWAV, has been applied to the upstream and downstream of weirs for hydraulic characteristics analysis through development of system and was performed for 8 multi-function weirs on Nakdong river using developed system. COSFIM, FLDWAV and EFDC can utilize suitable model in situation because they have pros and cons according to practical use purpose. Developed technique can offers spatial and grid unit information as well as line and section unit information from 1-D modeling. It is considered that the coupling simulation technique can provide useful hydraulic information for river management and treatment.
Development of Evaluation Items and Indicators for Hydrological Safety on Agricultural Reservoir
Lee, Jae Ju ; Rhee, Kyoung Hoon ; Park, Jong Seok ; Han, Chang Wha ; Jin, Wan Gyu ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 403~411
DOI : 10.17663/JWR.2014.16.4.403
This study Development of Evaluation Items and Indicators for Hydrological Safety on Agricultural Reservoir improvement and grasped the relative importance through stratification of the evaluation points through AHP technique exercised by group of experts. Below conclusion was acquired based on the study done. Firstly, the hierarchy of the evaluation items was divided into two layers: there were six upper evaluation items and eleven lower evaluation items. Secondly, using the analytic hierarchy process, the importance values of the six upper evaluation items were determined via the paired comparison questionnaire survey and consistency check, which were in the order of maintenance condition (condition evaluation grade), freeboard of levee body (non-overtopping), discharge capacity of spillway, potential flood damage, flood calculation factor and freeboard of downstream bank. The maintenance condition(condition evaluation grade) was significantly influenced the results of the hydrological safety on agricultural reservoir evaluation results. Finally, the study indicated that in the short term, improving the safety check condition evaluation grade will be useful to improve the hydrological safety of the agricultural reservoir because it can be performed immediately.
Characteristics of Stormwater Runoff discharged from vinyl greenhouse growing area in farming area
Jeon, Je Chan ; Lee, Sang Hyeub ; Kwon, Koo Ho ; Lee, Jea Woon ; Kwon, Heun Gag ; Min, Kyung Sok ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 413~422
DOI : 10.17663/JWR.2014.16.4.413
In national water quality policy, it changed previous regulation method that focuses on concentration of pollutants in effluent water to the way that regulates total amount of pollutants. The target of water quality in watershed of each river was set up, as the government instituted Total Maximum Daily Loads(TMDL). In order to accomplish successfully TMDL, it requires that the amount of pollutant loads discharged from point and nonpoint pollutant source should be investigated. This study, therefore, conducted the monitoring of the stormwater runoff at field region in farming area. And pollutants loads and unit loads discharged from field region results is calculated. As a result, the concentration of pollutants were calculated as follows: 10.5 BOD mg/L, 19.6
mg/L, 4.5 TN mg/L and 2.4 TP mg/L. The unit load of BOD,
, TOC, TSS, TN and TP discharged from field region, also, were determined to
, respectively. It was identified that there were some differences of unit loads between the results obtained from this study and previous one. To calculate exact unit loads, therefore, long term monitoring should be conducted.
Analysis of RCSTP Treatment Efficiency using BCS-II Process: Case Study of An-dong City
Im, Jiyeol ; Gil, Kyungik ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 423~431
DOI : 10.17663/JWR.2014.16.4.423
Supply of rural community sewage treatment plant (RCSTP) is need for protect of water quality like water source and development of agriculture areas. In this study conducted analysis on characteristics of RCSTP sewage and treatment efficiency of installed treatment process using operation results of RCSTP in an-dong area. high organic matter and nutrient were contained in RCSTP sewage of an-dong than urban area. RCSTP treatment process in an-dong was shown stable treatment efficiency. But nutrient treatment efficiency was shown more sensitive result about SRT and F/M ratio than organic matter treatment efficiency. And RCSTP treatment process in an-dong was shown higher treatment efficiency than other treatment proces like
, SBR and media. Thus, this process is effective treatment process for application of RCSTP.
characteristic of foaming in nitritation reactor using anaerobic digester supernatant and livestock wastewater
Im, Jiyeol ; Gil, Kyungik ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 433~441
DOI : 10.17663/JWR.2014.16.4.433
It has been known that sewage containing high-concentration nitrogen affects the efficiency of municipal wastewater treatment plants harmfully. Therefore, research has been actively conducted to treat sewage containing high-concentration nitrogen. The current study has analyzed organic compounds, conducted foaming tests, and operated a laboratory-level nitritation reactor with the subjects of anaerobic digester supernatant and livestock wastewater which are the typical kinds of sewage containing high-concentration nitrogen. According to the results of analyzing organic compounds, soluble inert components form the largest part of anaerobic digester supernatant while particle biodegradable components occupy the most part of livestock wastewater. About the retention time proper for the reaction of nitritation, anaerobic digester supernatant shows 2 days while livestock wastewater indicates 6 days. It seems that the difference in the proper retention time is resulted from the difference of properties in organic compounds and ammonium nitrogen concentration. In addition, livestock wastewater's reactor foam is generated comparatively more than anaerobic digester supernatant's, but it tends to be eliminated faster. It is expected that the findings of this study can be utilized as foundational data afterwards in applying the reaction of nitritation to municipal wastewater treatment plants.
Factor of Plant Growth in Relation to Feces of Korean Water Deer and Land Use Patterns
Park, Hyomin ; Lee, Sangdon ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 443~452
DOI : 10.17663/JWR.2014.16.4.443
Feces contain nutrients such as nitrogen and phosphate, potassium and research of the impact on the environment from feces is very diverse. However, despite the importance of mammals to environment, studies of mammals into the terrestrial ecosystems are rare. Korean water deer (Hydropotes inermis) is an endemic species of Korea and China, and we conducted on factor of plant growth in relation to feces of Korean water deer depending on land use patterns. The analysis of growth, biomass and C/N ratio of Zea mays, amount of feces and land use patterns are strongly affecting the C/N ratio and growth of the Zea mays. The quantity of the feces also influences the growth of plants instead of the land use patterns. Furthermore, the feces of Korean water deer have a lower C/N ratio than that of other animals' feces. Being the process of composting, it is able to serve a suitable fertilizer for a crop growth. In this study, we investigated the impact of feces into the environment in the terrestrial ecosystems and we were able to provide the basic data to the resources of an efficient scheme of animal feces. Further research is needed to quantify the materials amongst the plant, soil and animal, and to understand the relationship ecosystem.
Mechanism for Bank Erosion and Local Scouring in Estuary of the Hangang River
Lee, Samhee ; Han, Hyeongjun ; Choo, Jeongho ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 453~462
DOI : 10.17663/JWR.2014.16.4.453
The levee and bridge pier in estuary of the Hangang River are exposed in a dangerous condition due to bank erosion and local scouring occurred since the summer season in 2011. At first, it is presumed that the high sandbar formed in river channel of the study area was an important element in the occurrence of bank erosion and local scouring. It can be presumed that the record-breaking depth of freezing due to cold wave for the long term during the winter season between 2010 and 2011 as well as the heavy intensive rainfall of 2011 had a decisive effect on the first damage of A section. The second damage of B section mainly occurred around the bridge pier constructed on the high water channel before it was washed away during the winter season between 2011 and 2012. It is considered that the second damage was caused by ice formation and ice floes.
Study on River Management Plan Considering Ecological Preservation and Flood Control of Riverine Wetland
Ann, Byoung-Yun ; Kim, Taek-Min ; Hong, Seung-Jin ; Kim, Gil-Ho ; Kim, Soo-Jun ; Kim, Jae-Geun ; Kim, Hung-Soo ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 463~476
DOI : 10.17663/JWR.2014.16.4.463
The riverine wetlands located in the riverside bring about social conflicts through confrontation between flood control value through flood control project and ecological preservation value of riverine wetland. In this study, we identified the importance of both values through analysis of economic feasibility of flood control and ecological values of riverine wetland, and tried to suggest management plans for riverine wetland considering both of flood control safety and ecological preservation through these results. For this, we calculated the expected annual flood damage of Imjin River using the multi-dimensional flood damage analysis(MD-FDA), and calculated the total value of riverine wetland using the contingent valuation method(CVM) to estimate preservation value of riverine wetland. The result of the analysis shows that the Imjin River needs flood control project and the ecological preservation of riverine wetland is also important. Therefore, the establishment of the management plan for protecting riverine wetland is also needed. As a result, the Imjin riverine wetland was classified as the area where sedimentation continues to take place, and the flood water level to rise. On the basis of the analyzed results, it is judged that the Imjin River needs flood control for public safety and ecological consideration for ecosystem preservation in the river improvement project. So, the stepwise river improvement is desirable to protect riverine wetland and minimize ecosystem disturbance. The results is expected to be made good use as the basic study for establishment of institutional river management plans considering flood control project and riverine wetland preservation in the future.
Characteristics of Sediment Transport due to the Construction of Jetty at the Heoya-River Mouth, Ulsan
Lee, Seong-Dae ; Kim, Bong-Ik ;
Journal of Wetlands Research, volume 16, issue 4, 2014, Pages 477~486
DOI : 10.17663/JWR.2014.16.4.477
Integrated sand control including sediment discharge from hinterland rivers is necessary to maintain coastal sand resources over a long term. In this regard, the following subjects should be considered; efficient ways to transfer discharged sand from a river to the neighboring coast, measures to improve storage efficiency of the discharged sand at the river delta and/or river terrace, measures to prevent the sand resources from being discharged into the deep sea during flooding. From the 1997 to January 2004, the jetty of 156 m length was constructed the Heoya-river mouth to protect the blockade of river mouth. Several tests were carried out to investigate the characteristics of sediment transport and morphological change due to the construction of the jetty at the Heoya-river mouth. Firstly, The sand discharge from Heoya river is quantified by one-dimensional numerical analysis assuming the mixed sand of three different particle diameters. Also the numerical mode system, which predicts the sea bed changes obtained from the Bailard's energy model(1981), was combined with the wave, wave-induced currents and sediment transport models. Then, to understand the changes to the blockade of the river mouth, several aerial photographs were compared, which showed that the changes were significant.