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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Environmental Science International
Journal Basic Information
Journal DOI :
The Korean Environmental Sciences Society
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Volume & Issues
Volume 22, Issue 12 - Dec 2013
Volume 22, Issue 11 - Nov 2013
Volume 22, Issue 10 - Oct 2013
Volume 22, Issue 9 - Sep 2013
Volume 22, Issue 8 - Aug 2013
Volume 22, Issue 7 - Jul 2013
Volume 22, Issue 6 - Jun 2013
Volume 22, Issue 5 - May 2013
Volume 22, Issue 4 - Apr 2013
Volume 22, Issue 3 - Mar 2013
Volume 22, Issue 2 - Feb 2013
Volume 22, Issue 1 - Jan 2013
Selecting the target year
Phytosociological Study and Spatial autocorrelation on the Forest Vegetation of Mt. Yeonae at Gijang-gun
Choi, Byoung-Ki ; Huh, Man Kyu ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1373~1381
DOI : 10.5322/JESI.2013.22.11.1373
Mt. Yeonae is at Gijang-gun in Busan and is surrounded by farming lands on three sides. The search for the species composition and dynamics of local communities were studied at Mt. Yeonae of how spatial similarity decays with geographic distance. The index values of Z
rich-Montpellier School's phytosociology at the 12 plots was compared to a distribution of similarly using 20 m quadrates at 12 sites. The specific communities were five including Pinus densiflora - Quercus variabilis community. Six species were significant similarity between neighboring sites by using the spatial autocorrelation coefficient, Moran's I. If Mt. Yeonae was destroyed by an artificial action, some spatial correlated species such as P. densiflora and Q. variabilis will be collapsed because of no maintaining the effective population sizes.
Nitrogen and Phosphorus Removal from Domestic Wastewater by MLE Process Combined with Aluminum Corrosion Process
Park, Sang-Ill ; Choi, Hyung-Il ; Cheong, Kyung-Hoon ; Park, De-Hoon ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1383~1388
DOI : 10.5322/JESI.2013.22.11.1383
The pilot plant experiment was performed to investigate phosphorus and nitrogen removal from domestic wastewater by MLE process combined with aluminum corrosion reactor. When operating 0.5Q and 1Q to internal recycle and sludge recycle in the MLE process, the effluent
concentration of internal recycle 0.5Q were higher than internal recycle 1Q, the removal efficiency rates of
-N in the internal recycle 0.5Q were was higher than internal recycle 1Q. Denitrification rates were about 86.8% in internal recycle and sludge recycle 0.5Q. When operating 0.5Q to internal recycle and sludge recycle in the MLE process, the removal efficiency rates of total nitrogen was the highest. The removal efficiency rates of total phosphorus was about 91.5% in the aluminum corrosion reactor.
Variation of Nutrients due to Long-Term Effects of Ocean Dumping and Spatial Variability of Water Quality Parameters in Summer at the Ocean Waste Disposal Site Off the West Coast of Korea
Koh, Hyuk Joon ; Choi, Young Chan ; Park, Sung Eun ; Cha, Hyung Kee ; Chang, Dae Soo ; Yoon, Han Sam ; Lee, Chung Il ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1389~1402
DOI : 10.5322/JESI.2013.22.11.1389
This paper focuses on the impacts of waste dumping on inorganic nutrients in the dumping area of the Yellow Sea, and the effect of an governmental regulation of pollution in dumping areas. The environmental variables and parameters of the dumping and reference areas in the Yellow Sea were measured during July 2009 and analyzed. In addition, the analyzed data for inorganic nutrients over the last 10 years were obtained from the Korea Coast Guard (KCG) and the National Fisheries Research and Development Institute (NFRDI). The chemical environment of the study area revealed increases in concentrations of inorganic nutrients, Chemical Oxygen Demand (COD), and Volatile Suspended Solids (VSS) in the bottom layer. On the contrary, the pH level was decreased. Most notably, the time series data of inorganic nutrients showed gradual increase over time in the dumping area, and thus, the oligotrophic waters trend toward eutrophic waters. The increases appears to be due to the disposal of large amounts of organic waste. In recent times, the wastes disposed at the area were largely comprised of livestock wastewater, and food processing waste water. The liquefied waste, which contains an abundance of nutrients, causes a sharp increase in concentrations of inorganic nitrogen in the dumping area. On the one hand, the dumping sites have been deteriorated to such an extent that pollution has become a social problem. Consequentially, the government had a regulatory policy for improvement of marine environmental since 2007 in the dumping area. Hence, the quality of marine water in the dumping site has improved.
Chl a Fluorescence Characterization and Biomarker Selection from Ricciocarpos natans under Cadmium Stress
Oh, Soonja ; Koh, Seok Chan ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1403~1413
DOI : 10.5322/JESI.2013.22.11.1403
The effects of cadmium ions (
) on the Chl a fluorescence of Ricciocarpos natans were investigated in order to determine whether Chl fluorescence can be used as a biomarker to estimate the physiological responses of plants to cadmium stress. In all plants treated with
, the image of Fv/Fm, which represents the maximum photochemical efficiency of PSII, changed as the
concentration increased, when treated for 48 h or more. Changes of
images were recognized even at 10
. The Chl a O-J-I-P fluorescence transient was also affected even at 10
. The fluorescence yield decreased considerably in steps J, I and P in plants treated with
, although a typical polyphasic rise was observed in non-treated plants. The Chl fluorescence parameters, Fm, Fv/Fo, Sm, SFIabs, PIabs and ETo/CS, decreased as the
concentration increased, while the Mo and Kn parameters increased. Peroxidase activity decreased significantly and catalase activity increased as the
concentration increased. Because of its sensitivity to
Ricciocarpos natans is useful in experiments investigating the responses of plants to cadmium exposure. Several parameters (Fm, Fv/Fo, Sm, SFIabs, PIabs, ETo/CS, Mo and Kn) can be applied to determine quantitatively the physiological states of plants under cadmium stress.
Study on Seasonal Variation Characteristics of Forest Phytoncide in Ulsan Metropolitan Trails
Park, Heung Jai ; Yu, Bong Gwan ; Park, Sun Ho ; Lee, Jin Yeol ; Hahm, Yoo Sik ; Jeong, Seong Wook ; Byeon, Ki Yeong ; Kim, So Hee ; Jung, Im Su ; Lee, Mi Lim ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1415~1419
DOI : 10.5322/JESI.2013.22.11.1415
This study was conducted to investigate the seasonal variation characteristics of phytoncide in trail of Ulsan Metropolitan. Air samples were collected from May to December 2011. They were collected using Tenax Ta tube and phytoncides were detected and quantified using a Gas Chromatograph Mass Spectrometer (GC/MSD). This study are summarized as follows; The seasonal concentrations of phytoncide are Munsu Mt. 272.3
, Samho Mt. 192.4
, Shinbul Mt. 50.9
, Sibli Bamboo forest 22.4
and Joongbu Fire Station 24.4
. In Munsu Mt., Samho Mt. and Shinbul Mt. major component ratio is
-Pinene+Myrcene >Limonene >Camphene >
-Terpinene. Bamboo forest and Joongbu fire station major component ratio is
-Pinene >Limonene >
-Pinene+Myrcene >Camphene >
-Terpinene. The variation of seasonal concentration is summer >spring >fall >winter. The phytoncide concentration of coniferous forest(Munsu Mt., Samho Mt.) is higher than broadleaf forest(Shinbul Mt.).
Ecological Characteristics and Distribution of Marshy Ericaceae on Mt. Changbai in China
Jin, Yinghua ; Xuan, Yongnan ; Lee, Sung Je ; Ahn, Young Hee ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1421~1431
DOI : 10.5322/JESI.2013.22.11.1421
This study was conducted for clarifying distribution and characteristics of marshy Ericaceae plants on Mt. Changbai in China. The marshy Ericaceae plants in wetland of Mt. Changbai were investigated on about 1400 m altitude. This region is various developmental wetlands and vegetation mixture of needle-leaf trees and broad-leaf trees. This region also is start point of the coniferous forest zone in Mt. Changbai. As results of these researches, L. palustre var. diversipilosum and L. palustre var. decumbens populations were investigated in Larix olgensis var. amurensis community. R. lapponicum subsp. parvifolium var. parvifolium community appeared as a typical community. Environmental conditions of L. palustre var. diversipilosum and L. palustre var. decumbens populations' habitats are more soil humidity and shade condition. R. lapponicum subsp. parvifolium var. parvifolium community habitat, however, has more deposits and humidity condition. Therefore when the plants were cultivated, we should recognize the growth condition such as maintenance of humidity and control deposits. The flora of marshy Ericaceae species habitats was investigated as 28 families, 49 genera, 45 species, 14 variety, 1 forma, 1 sub-species, and total 61 taxa.
Removal Characteristics of Crystal Violet and Methylene Blue from Aqueous Solution using Wood-based Activated Carbon
Jeon, Jin-Wo ; Yu, Hae-Na ; Kam, Sang-Kyu ; Lee, Min-Gyu ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1433~1441
DOI : 10.5322/JESI.2013.22.11.1433
The adsorption ability of wood-based activated carbon to adsorb methylene blue (MB) and crystal violet (CV) from aqueous solution has been investigated. Adsorption studies were carried out on the batch experiment at different initial MB and CV concentrations (MB=150 mg/L~400 mg/L, CV=50 mg/L~350 mg/L), contact time, and temperature. The results showed that the MB and CV adsorption process followed the pseudo-second-order kinetic and intraparticle diffusion was the rate-limiting step. Adsorption equilibrium data of the adsorption process fitted very well to both Langmuir and Freundlich model. The maximum adsorption capacity (
) by Langmuir constant was 416.7 mg/g for MB and 462.4 mg/g for CV. The thermodynamic parameters such as
were evaluated. The MB and CV adsorption process was found to be endothermic for the two dyes.
Assessment of Temperature Reduction and Evapotranspiration of Green Roof Planted with Zoysia japonica
Kim, Se-Chang ; Lee, Hyun-Jeong ; Park, Bong-Ju ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1443~1449
DOI : 10.5322/JESI.2013.22.11.1443
This was an experimental study to evaluate temperature reduction and evapotranspiration of extensive green roof. Three test cells with a dimension of
meters were built using 4-inch concrete blocks. Ten-centimeter concrete slab was installed on top of each cell. The first cell was control cell with no green roof installed. The second and third cells were covered with medium-leaf type Zoysiagrass (Zoysia japonica) above a layer of soil. Soil thickness on the second cell was 10cm and that on the third cell was 20cm. Air temperature, relative humidity and solar irradiance were measured using AWS (automatic weather system). Temperature on top surface and ceiling of the control cell and temperature on top surface, below soil and ceiling of green roof cells was measured. Evapotranspiration of the green roof cells were measured using weight changes. Compared with temperature difference on the control cell, temperature difference was greater on green roof cells. Between two green roof cells, the temperature difference was greater on the third cell with a thicker soil layer. Temperature differences below soil and on ceilings of green roof cells were found greater than those of the control cell. Between the green roof cells, there was no difference in the temperature reduction effects below soil and on ceilings based on substrate depth. In summary, green roof was found effective in temperature reduction due to evapotranspiration and shading effect.
Study on Timely Characteristics of Forest Phytoncide in Ulsan Metropolitan Trails
Park, Heung Jai ; Yu, Bong Gwan ; Park, Sun Ho ; Lee, Jin Yeol ; Hahm, Yoo Sik ; Jeong, Seong Wook ; Byeon, Ki Yeong ; Lee, Hyun Hee ; Choi, Seung Hoon ; Son, Ji Min ; Lee, Mi Lim ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1451~1456
DOI : 10.5322/JESI.2013.22.11.1451
This study was conducted to investigate the timely characteristics of phytoncide in forest trail of Ulsan Metropolitan. Air samples were collected from July to October 2011. The phytoncide were detected and quantified using a Gas Chromatograph Mass Spectrometer(GC/MSD). This study are summarized as follows ; The highest levels of phytoncide concentration of August is higher than other months in Munsu Mt. and Samho Mt.(town mountains). The higher phytoncide emission rates found in the morning and in the evening. The concentration of phytoncide was understanded to be greatly influenced by environment change of day time.
Keratinase Production by Recalcitrant Feather Degrading Pseudomonas Geniculata and Its Plant Growth Promoting Activity
Go, Tae-Hun ; Lee, Sang-Mee ; Lee, Na-Ri ; Jeong, Seong-Yun ; Hong, Chang-Oh ; Son, Hong-Joo ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1457~1464
DOI : 10.5322/JESI.2013.22.11.1457
We investigated the optimal conditions for keratinase production by feather-degrading Pseudomonas geniculata H10 using one variable at a time (OVT) method. The optimal medium composition and cultural condition for keratinase production were determined to be glucose 0.15% (w/v), beef extract 0.08% (w/v),
0.02% (w/v), NaCl 0.07% (w/v),
0.04% along with initial pH 10 at 200 rpm and
, respectively. The production yield of keratinase was 31.6 U/ml in an optimal condition, showing 4.6-fold higher than that in basal medium. The strain H10 also showed plant growth promoting activities. This strain had ammonification activity and produced indoleacetic acid (IAA), siderophore and a variety of hydrolytic enzymes such as protease, lipase and chitinase. Therefore, this study showed that P. geniculata H10 could be not only used to upgrade the nutritional value of feather wastes but also useful in situ biodegradation of feather wastes. Moreover, it is also a potential candidate for the development of biofertilizing agent applicable to crop plant soil.
A Study on Development of Protein Materials using Dead Flatfish from Fish Farms(1) -Antioxidant Functional Properties-
Kang, Keon-Hee ; Lee, Min-Gyu ; Kam, Sang-Kyu ; Jeong, Kap-Seop ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1465~1471
DOI : 10.5322/JESI.2013.22.11.1465
To develop the protein materials by the reutilization of dead flatfish from fish farms in Jeju island, the physicochemical characteristics and the functional activities of collagen peptide extracts were investigated. Flatfish skin collagen peptide (FSCP) and flatfish protein hydrolysate (FPH) were manufactured from dead flatfish. The differences of pH, moisture and fat contents between FSCP and FPH were not significant, fat contents were analyzed less than 0.3%, and trans-fat, saturated fat and cholesterol were not detected in both samples. Protein contents of FSCP and FPH showed about 92% and 95%, respectively. In the analysis of amino acids, glycine and hydroxy proline content in FSCP was 24.22% and 6.15%, respectively, showed a typical characteristics of the collagen protein, but essential amino acids contents such as threonine, valine, methionine, isoleusine, leusine and phenylalanine were relatively higher than those of FPH. Average molecular weight of FSCP was measured as 1,102 which was almost equal value with that of tuna collagen peptide. The antioxidant activities and functional properties showed high but did not show significant difference between two samples.
Estimation for the Variation of the Concentration of Greenhouse Gases with Modified Shannon Entropy
Kim, Sang-Mok ; Lee, Do-Haeng ; Choi, Eol ; Koh, Mi-Sol ; Yang, Jae-Kyu ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1473~1479
DOI : 10.5322/JESI.2013.22.11.1473
Entropy is a measure of disorder or uncertainty. This terminology is qualitatively used in the understanding of its correlation to pollution in the environmental area. In this research, three different entropies were defined and characterized in order to quantify the qualitative entropy previously used in the environmental science. We are dealing with newly defined distinct entropies
originated from Shannon entropy in the information theory, reflecting concentration of three major green house gases
represented as the probability variables. First,
is to evaluate the total amount of entropy from concentration difference of each green house gas with respect to three periods, due to industrial revolution, post-industrial revolution, and information revolution, respectively. Next,
is to evaluate the entropy reflecting the increasing of the logarithm base along with the accumulated time unit. Lastly,
is to evaluate the entropy with a fixed logarithm base by 2 depending on the time. Analytical results are as follows.
shows the degree of prediction reliability with respect to variation of green house gases. As
increased, the concentration variation becomes stabilized, so that it follows from linear correlation.
is a valid indicator for the mutual comparison of those green house gases. Although
locally varies within specific periods, it eventually follows a logarithmic curve like a similar pattern observed in thermodynamic entropy.
Numerical Study on Optimization of the SCR Process Design in Horizontal HRSG for NOx Reduction
Kim, Kyeongsook ; Lee, Kyeongok ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1481~1498
DOI : 10.5322/JESI.2013.22.11.1481
The SCR (selective catalytic reduction) system is highly-effective technique for NOx reduction from exhaust gases. In this study, the effects of the direction and size of nozzle and the ammonia injection concentration on the performance of SCR system are analyzed by using the computational fluid dynamics method. When the nozzle is arranged in zigzaged direction which is normal to exhausted gas flow, it is shown that the uniformity of gas flow and the NH3/NO molar ratio is improved remarkably. With the change of the ammonia injection concentration from 0.2 vol%(wet) to 1.0 vol%(wet), the uniformity of gas flow shows a good results. As the size of nozzle diameter changes from 6 mm to 12 mm, the uniformity of gas flow is maintained well. It is shown that the uniformity of the
molar ratio becomes better with decreasing the ammonia injection concentration and the size of nozzle diameter.
The Effects of LED Light Quality on Foliage Plants Growths in Interior Environment
Kim, Myung-Seon ; Chae, Soo-Cheon ; Lee, Myung-Won ; Park, Gab-Soon ; Ann, Seoung-Won ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1499~1508
DOI : 10.5322/JESI.2013.22.11.1499
In the results of investigating the role of LED light quality in enhancing the ornamental value of indoor foliage plants, amber and red light increased plant height, leaf width, and leaf stalk, and the consequent tree shape decreased the ornamental value. The chlorophyll content increased significantly under white light and compound light. With regard to the effect of plant leaf color on ornamental value, the value of lightness was markedly enhanced by red light. As to the functionality of plants according to photosynthetic activity, plants such as Dieffenbachia, Clusia, and Dracaena were found favorable to those staying indoors for a longtime from morning to evening. Spathiphyllum, and Ficus were found to be recommendable for indoor spaces used actively during afternoon because their photosynthesis was activated in the afternoon. With regard to power consumption according to light quality, white light consumed 119 W/hour, around 45% lower than that of fluorescent lamps, so it is considered the optimal artificial light quality that can enhance energy efficiency. Red light consumed 72 W/hour, only 33% of that of fluorescent lamps, but it was not considered the optimal light quality because plant growth was poor under the light quality. White light and compound light were found to be the ideal light sources for improving the functionality and ornamental value of indoor plants and reducing the cost of maintenance, but because compound light hinders people from recognizing the original color of plants and makes their eyes easily tired, white light was considered the optimal light satisfying all of the ornamental value, economic efficiency and functionality resulting from plant growth.
Effect of Compost and Tillage on Soil Carbon Sequestration and Stability in Paddy Soil
Hong, Chang-Oh ; Kang, Jum-Soon ; Shin, Hyun-Moo ; Cho, Jae-Hwan ; Suh, Jeong-Min ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1509~1517
DOI : 10.5322/JESI.2013.22.11.1509
So far, most studies associated with soil carbon sequestration have been focused on long term aspect. However, information regarding soil carbon sequestration in short term aspect is limited. This study was conducted to determine changes of soil organic carbon content and stability of carbon in response to compost application rate and tillage management during rice growing season(150 days) in short term aspect. Under pot experiment condition, compost was mixed with an arable soil at rates corresponding to 0, 6, 12, and 24 Mg/ha. To determine effect of tillage on soil carbon sequestration, till and no-till treatments were set up in soils amended with application rate of 12 Mg/ha. Compost application and tillage management did not significantly affect soil organic carbon(SOC) content in soil at harvest time. Bulk density of soil was not changed significantly with compost application and tillage management. These might result from short duration of experiment. While hot water extractable organic carbon(HWEOC) content decreased with compost application, humic substances(HS) increased. Below ground biomass of rice increased with application of compost and till operation. From the above results, continuos application of compost and reduce tillage might improve increase in soil organic carbon content and stability of carbon in long term aspect.
Analysis of Forest Image according to Main Tree Species
Kim, Jin-Sook ; Shin, Chang-Sup ; Yeoun, Poung-Sik ; Park, Suk-Hee ; Koo, Wan-Hae ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1519~1527
DOI : 10.5322/JESI.2013.22.11.1519
We have researched the image of different forest species by asking those who use these forests how they feel when enjoying them for their various purposes. We surveyed five different forest areas, these were a pine forest a korean pine forest a cypress forest a broad leafed forest and a mixed forest. We asked 806 people how these forests made them feel and what they thought was the image of these forests. We offered them a choice of 18 pairs of adjectives to describe how they felt. We used the SD Scale and discovered 4 different factors. A feeling of comfort and freshness and a feeling of order and space. There was also a feeling of intimacy with nature. Each forest gave out its own feeling and image. comfort and freshness was felt by those in the pine forest, the korean pine forest, the broad leafed forest and the mixed forest. A Feeling of order and space was felt in the korean pine forest. Intimacy was felt in the pine forest, broad leafed forest and the mixed forest.
An Analysis of the Current Status of Disasters Occurring on the Steep Slopes in Korea
Kim, Sung-Wook ; Jung, Soo-Jung ; Choi, Eun-Kyeong ; Kim, Sang-Hyun ; Lee, Khil-Ha ; Park, Dug-Guen ;
Journal of Environmental Science International, volume 22, issue 11, 2013, Pages 1529~1538
DOI : 10.5322/JESI.2013.22.11.1529
Disasters like mountain landslides and collapse in cutting areas claim many a life and cause economic losses, involving much effort and expenses for their recovery. This study has surveyed and analyzed incident of disasters that had occurred on the sloping sides in Korea for the past 13 years in an effort to relieve damage caused by disasters on the sloping sides. The analysis confirms that while the major cause of disasters on the sloping side was storms in the past, frequency of disasters on sloping sides caused by local downpour is steadily on the rise. In addition, while disasters were concentrated in Gangwon Province, a mountainous region of the country, frequency of disasters occurring on the sloping sides is steadily increasing recently on the sloping sides in downtown areas in Seoul, Gyeonggi-do and so forth, attributing a large percentage of disasters to sloping sides. Data surveyed and analyzed in this study are thought to be applicable as basic data for the establishment of effective measures for the prevention of disasters occurring on the sloping sides in the days to come.