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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 15, Issue 4 - Nov 2013
Volume 15, Issue 3 - Aug 2013
Volume 15, Issue 2 - May 2013
Volume 15, Issue 1 - Feb 2013
Selecting the target year
The Effects of the Four Major Rivers Restoration Project on Regional Economy
Yoo, Seung-Hoon ; Park, Dooho ;
Journal of Wetlands Research, volume 15, issue 2, 2013, Pages 159~164
DOI : 10.17663/JWR.2013.15.2.159
The 4 major rivers restoration project (4RRP) requires the government to invest a lot of money. Regional economic effect is one of the main purposes of implementing the 4RRP. This paper attempts to measure the regional economic effects, focusing on regional employment-inducing effect and regional income-inducing effect. Regional employment-inducing effect is computed by excluding indirect effect and directly investigating the amount of employment. To this end, marginal propensity to consume, household consumption, household income should be derived. We used working day data and government expenditure multiplier to measure local employment creation and income generation. As a result, the project creates 46,628 employments from 2009 to 25 August 2011 and generates 25 trillion won regional income for three years.
The Recovery of Carbon Source from Municipal Primary Sludge using Pilot Scale Elutriated Acidogenic Fermentation
Kwon, Kooho ; Kim, Siwon ; Jung, Yongjun ; Min, Kyungsok ;
Journal of Wetlands Research, volume 15, issue 2, 2013, Pages 165~170
DOI : 10.17663/JWR.2013.15.2.165
Pilot scale study was carried out to produce Volatile Fatty Acids with primary sludge from municipal wastewater treatment plant. An acid fermenter was operated at pH 9,
, SRT of 3.5-4.25d, using a final effluent as elutriating water(Mode-I) and pH 9, SRT 5d, temperature of
(Mode-III), using a primarily treated water as elutriating water. Although solubilization rate was enhanced with the increase of temperature, the VFAs production rate was decreased. The VS reduction was shown approximately 56%, and the sludge volume reduction was 93%. The optimal conditions for solubilization was obtained at pH 9,
and SRT of 5d.
Effects of Elevated CO
and Temperature on the Leaf Morphological Responses of Quercus serrata and Quercus aliena, Potential Natural Vegetation of Riverine
Cho, Kyu-Tae ; Kim, Hae-Ran ; Jeong, Heon-Mo ; You, Young-Han ;
Journal of Wetlands Research, volume 15, issue 2, 2013, Pages 171~177
DOI : 10.17663/JWR.2013.15.2.171
This study was conducted to find the leaf morphological responses of Quercus serrata and Q. aliena which are potential natural vegetation of riverine in Korea under elevated
and increased temperature. Rising
concentration was treated with 1.6 times than control(ambient) and increased temperature with
above the control(ambient) in the glass greenhouse. As a result, leaf width length, leaf lamina weight and leaf area of Q. serrata and Q. aliena was respectively increased, and number of leaves and specific leaf area(SLA) was decreased by elevated
and temperature. Leaf width length, leaf lamina length, leaf lamina weight, number of leaves, leaf area, and specific leaf area of Q. serrata were not statistically significant difference between control and treatment. Leaf width length and leaf weight of Q. aliena was increased, but specific leaf area was decreased. These results indicated that Q. aliena was to be sensitive than Q. serrata in response to global warming situation. According to the principal component analysis(PCA), two oak species were arranged based on factor 1 and 2 in the control and warming treatment. And change on the warming treatment was clearly distinguishable from the Q. aliena than Q. serrata.
Groundwater Use and Its Perspective in Haean Basin, Yanggu County of Gangwon Province
Lee, Jin-Yong ; Han, Jiwon ;
Journal of Wetlands Research, volume 15, issue 2, 2013, Pages 179~189
DOI : 10.17663/JWR.2013.15.2.179
The Haean basin is a unique geographical feature formed by differential erosion and it borders the military demarcation line. Recently the basin has become an interest of civilians due to security tour, highland vegetables and wetland. After the civil war, the population decreased but it has increased since 2007. The annual mean air temperature in the basin has increased with a rate of
and the annual precipitation also has increased with a rate of +10.41 mm/yr. The precipitation occurring in June~August (wet season) occupied most of the total precipitation increase. In addition, recently the number of groundwater wells and its use have gradually increased and most of them are for agriculture including cultivation of rice and highland vegetables. If the air temperature further increases in the future according to the climate change scenarios, the highland vegetables cultivation will be difficult. Furthermore, if the rainstorm in the summer will be enforced, the groundwater recharge and water management will be aggravated. Therefore, an evaluation for sustainable groundwater development in the basin and a reform of the current agriculture (change of cultivating crops) depending on much water are essentially required.
Evaluation of the Application of Radar Data for Local Landslide Warning
Choi, Yun Seok ; Choi, Cheon Kyu ; Kim, Kyung Tak ; Kim, Joo Hun ;
Journal of Wetlands Research, volume 15, issue 2, 2013, Pages 191~201
DOI : 10.17663/JWR.2013.15.2.191
Landslide in Korea occurs generally in summer, and rainfall is a major factor to trigger landslides. This study evaluates the applicability of radar rainfall to estimate landslide occurs locally in mountainous area. Temporal changes in spatial distribution of rainfall is analyzed using radar data, and the characteristics of rainfall in landslide area during the landslide occurred in Inje, July 2006. This study shows radar rainfall field can estimate local landslides more precisely than the rainfall data from ground gauges.
Flora of Gonggeom-ji Wetlands Protection Area (Sangju-si, Gyeongsangbuk-do)
Song, Im Geun ; Park, Seon Joo ;
Journal of Wetlands Research, volume 15, issue 2, 2013, Pages 203~214
DOI : 10.17663/JWR.2013.15.2.203
Knowing how many species live in a ecosystem is a major work because of the distributions of species are determined by the environmental condition. This study was carried out to investigate the distribution of vascular plants of Gonggeom-ji, located in Sangju-si, Gyeongsangbuk-do, from April to October on 2012. The vascular plants were summarized as 240 taxa including 69 families, 176 genus, 204 species, 2 subspecies, 29 varieties, and 5 forma. Among the investigated taxa, 3 taxa of Korean endemic plants were included. Based on the list of specially designated plants by Ministry of Environment, 11 taxa including Alisma orientale, Monochoria korsakowii and Nymphoides peltata were recorded. The naturalized plants were identified as 26 taxa and the ratio of naturalized index (NI) was 10.8% of vascular plants recorded. 31 taxa of hydrophytes showed 17.8% of Korea. To conservation of wetlands, we suggest that it is required to minimize for unnecessary disturbance of human and to make a strategy for effective management by continuous monitoring for ecosystem alteration.
Evaluation on the nutrient concentration changes along the flow path of a free surface flow constructed wetland in agricultural area
Mercado, Jean Margaret R. ; Maniquiz-Redillas, Marla C. ; Kim, Lee-Hyung ;
Journal of Wetlands Research, volume 15, issue 2, 2013, Pages 215~222
DOI : 10.17663/JWR.2013.15.2.215
In this study, the nutrient concentration changes along the hydrologic flow path of a free water surface flow constructed wetland (CW) treating agricultural stream runoff was investigated. Dry sampling was performed from April 2009 to November 2011 at five locations representing each treatment units of the CW. Grab water samples were analyzed for nitrogen forms such as total nitrogen (TN), total Kjeldahl nitrogen, nitrate, and ammonium; and phosphorus forms including total phosphorus (TP) and phosphate. Findings revealed that the physical properties such as temperature, dissolved oxygen and pH affected the TP retention in the CW. High nutrient reduction was observed after passing the first sedimentation zone indicating the importance of settling process in the retention of nutrients. However, it was until the 85% of the length of the CW where nutrient retention was greatest indicating the deposition of nutrients at the alternating shallow and deep marshes. TN and TP concentration seemed to increase at the final sedimentation zone (FSZ) suggesting a possible nutrient source in this segment of the CW. It was therefore recommended to reduce or possibly remove the FSZ in the CW for an optimum performance, smaller spatial allocation and lesser construction expenses for similar systems.
Analysis on Rainwater Harvesting System as a Source of Non-Potable Water for Flood Mitigation in Metro Manila
Necesito, Imee V. ; Felix, Micah Lourdes A. ; Kim, Lee-Hyung ; Cheong, Tae Sung ; Jeong, Sangman ;
Journal of Wetlands Research, volume 15, issue 2, 2013, Pages 223~231
DOI : 10.17663/JWR.2013.15.2.223
Excessive precipitation, drought, heat waves, strong typhoons and rising sea levels are just some of the common indicators of climate change. In the Philippines, excessive precipitation never failed to devastate and drown the streets of Metro Manila, a highly urbanized and flood-prone area; such problems are expected to occur frequently. Moreover, the water supply of Metro Manila is dependent only to Angat Reservoir. Rainwater harvesting can serve as an alternative source of raw water and it can mitigate the effects of flooding. The harvested rainwater can be used for: potable consumption if filtered and disinfected; and non-potable consumptions (e.g., irrigation, flushing toilets, carwash, gardening, etc.) if used untreated. The rainfall data were gathered from all 5 rainfall stations located in Metro Manila namely: Science Garden, Port Area, Polo, Nangka and Napindan rain gauge stations. To be able to determine the potential volume of rainwater harvested and the potentiality of rainwater harvesting system as an alternate source of raw water; in this study, three different climatic conditions were considered, the dry, median and wet rainfall years. The frequent occurrence of cyclonic events in the Philippines brought significant amount of rainwater that causes flooding in the highly urbanized region of Metro Manila. Based from the results of this study, the utilization of rainwater harvesting system can serve as an alternative source of non-potable water for the community; and could also reduce the amount of surface runoff that could result to extreme flooding.
Investigating Changes over Time of Precipitation Indicators
Han, Bong-Koo ; Chung, Eun-Sung ; Lee, Bo-Ram ; Sung, Jang Hyun ;
Journal of Wetlands Research, volume 15, issue 2, 2013, Pages 233~250
DOI : 10.17663/JWR.2013.15.2.233
Gradually or radically change how the characteristics of the climate characteristic using change point analysis for the precipitation indicators were investigated. Significantly the amount, extreme and frequency were separated by precipitation indicators, each indicator RIA(Rainfall Index for Amount), RIE(Rainfall Index for Extremes) and RIF(Rainfall Index for Frequency) was defined. Bayesian Change Point was applied to investigate changing over time of precipitation indicators calculated. As the result of analysis, precipitation indicators in South Korea was found to recently increase all indicators except for the annual precipitation days and 200-yr precipitation. RIA revealed that there was a very clear point of significance for the change in Ulleungdo, Relatively significant results for RIE were identified in Gumi, Jecheon and Seogwipo. Also, since the 1990s, an increase in the number of variation points, and the horizontal width of the fluctuation point was being relatively wider. Based on these results, rethink the precipitation on the assumption of stationarity was judged necessary.
Environmental factors affecting roost use of shorebirds in the southern Kanghwa Island, Republic of Korea
Kim, Kwan Mok ; Moon, Young Min ; Yoo, Jeong Chil ;
Journal of Wetlands Research, volume 15, issue 2, 2013, Pages 251~264
DOI : 10.17663/JWR.2013.15.2.251
There are some factors affecting the shorebirds in selecting a coastal inland roost site where they have to stay during the high tide when the entire intertidal zone is covered with water. We investigated eight species (Eastern Curlews Numenius madagascariensis, Green Shanks Tringa nebularia, Bar-tailed Godwits Limosa lapponica, Grey Plovers Pluvialis squatarola, Dunlins Calidris alpine, Whimbrels Numenius phaeopus, Eurasian Curlews Numenius arquata and Terek Sandpipers Xenus cinereus) to identify the spatial and temporal variability in coastal inland roost use in the area and the factors influencing the use. We considered the area and length of the standing water in the roost site, temperature, wind speed, the time of migration and the intensity of disturbance. As a result, number of individuals and type of species using the roost site varied across spatial and temporal scales. And the factors affecting the roost use was species-specific. The roost site of the study area was a closed shrimp farm however, it has been converted to a Salicornia herbacea, a salt marsh plant, farm recently. In a situation where coastal inland roost site is needed, we hereby describe a resolution for the juxtaposition of shorebirds and farming.
Feasibility Study of On-site Analysis on Nitrite
Jung, Yong-Jun ;
Journal of Wetlands Research, volume 15, issue 2, 2013, Pages 265~269
DOI : 10.17663/JWR.2013.15.2.265
Nitrogen in water is mainly composed of ammonium, nitrite and nitrate, and which can cause eutrophication. A lot of efforts were made to remove them and the accompanying efforts have been made for the development of analytical methods. Rapid and on site detection methods are required for the analysis of pollutants in water system. Thus, we focused on the development of analytical method for nitrite, and the feasibility study on the nitrite analysis by PVC adsorbent columns coated with BCDMA, Biphenyl and methanol. The adsorbents could effectively adsorb mixed reagent in the range of 4 to 20
for nitrite detection and show linear relationship with color band length. The adsorbance was influenced by pH.
Impact of Climate Change on Habitat of the Rhynchocypris Kumgangensis in Pyungchang River
Kim, Soojun ; Noh, Hui Seong ; Hong, Seung Jin ; Kwak, Jae Won ; Kim, Hung Soo ;
Journal of Wetlands Research, volume 15, issue 2, 2013, Pages 271~280
DOI : 10.17663/JWR.2013.15.2.271
This study tried to analyze the impact of climate change on ecological habitat. In this regard, the Rhynchocypris Kumgangensis was selected among the CBIS(Climate-sensitive Biologocal Indicator Species) suggested by the Ministry of Environment. And ecological habitat and restrictive conditions for its survival was surveyed. Future runoff and water quality in the upstream of Pyungchang river were simulated by appling climate change scenarios to SWAT model which is able to simulate water quality. The estimated results explained characteristics on the increase of runoff, BOD, and water temperature and the decrease of DO in the future. The restrictive condition on ecological habitat of the Rhynchocypris Kumgangensis was used water quality during the April to May spawning season since BOD and DO were satisfactory as the first grade of water criteria in the estimated result of future water quality. As a result, it was analyzed that habitat of the Rhynchocypris Kumgangensis in the present was possible about 50~60% of the river. But the habitat would be decreased gradually in the future and would be possible in a very small part of the river in the long term.
Bird-Days Carrying Capacity Estimation of the Curlews Stopping Over in the Southern Intertidal Zone of Kanghwa Island
Moon, Young-Min ; Kim, Kwan-Mok ; Yoo, Jeong-Chil ;
Journal of Wetlands Research, volume 15, issue 2, 2013, Pages 281~288
DOI : 10.17663/JWR.2013.15.2.281
In this study we estimated the carrying capacity of the southern intertidal zone of Kanghwa Island to evaluate the habitat quality for Curlews(Far Eastern Curlew Numenius madagascariensis and Eurasian Curlew Numenius arquata). Biomass of the macroinvertebrate(Macrophthalmus japonicus) was estimated by based on the spatial distribution of the sediment grain size using GIS tools. According to our analysis the southern intertidal zone of Kanghwa Island was able to support 11,767 individuals for 153 days in the Spring 2012 and 16,275 individuals for 122 days in the Autumn 2012. The proportion of mean population to the carrying capacity in the Spring and Autumn was 9.4% and 5.9%, respectively. These values are 2.8-6.3% smaller than those of the previous study held in 1993-94. For the conservation of the study area, more research and management is needed. And in further studies, diverse characteristics of the intertidal habitat should be considered in spatial analysis to have a precise estimate of the carrying capacity.