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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korea Society of Environmental Restoration Technology
Journal Basic Information
Journal DOI :
The Korea Society of Environmental Restoration Technology
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Volume & Issues
Volume 14, Issue 6 - Dec 2011
Volume 14, Issue 5 - Oct 2011
Volume 14, Issue 4 - Aug 2011
Volume 14, Issue 3 - Jun 2011
Volume 14, Issue 2 - Apr 2011
Volume 14, Issue 1 - Feb 2011
Selecting the target year
Soil Surface Fixation by Direct Sowing of Zoysia japonica with Soil Improvement on the Dredged Soil Slope
Jeong, Yong-Ho ; Lee, Im-Kyun ; Seo, Kyung-Won ; Lim, Joo-Hoon ; Kim, Jung-Ho ; Shin, Moon-Hyun ;
Journal of the Korea Society of Environmental Restoration Technology, volume 14, issue 4, 2011, Pages 1~10
This study was conducted to compare the growth of Zoysia japonica depending on different soil treatments in Saemangeum sea dike, which is filled with dredged soil. Zoysia japonica was planted using sod-pitching method on the control plot. On plots which were treated with forest soil and soil improvement, Zoysia japonica seeds were sprayed mechanically. Sixteen months after planting, coverage rate, leaf length, leaf width, and root length were measured and analyzed. Also, three Zoysia japonica samples per plot were collected to analyze nutrient contents. Coverage rate was 100% in B treatment plot(dredged soil+
soil improvement+forest soil), in C treatment plots (dredged soil+
soil improvement+forest soil), and D treatment plots (dredged soil+
soil improvement), while only 43% of the soil surface was covered with Zoysia japonica on control plots. The width of the leaf on C treatment plots (3.79mm) was the highest followed by D treatment (3.49mm), B treatment (2.40mm) and control plots (1.97mm). Leaf and root length of D treatment was 30.18cm and 13.18cm, which were highest among different treatments. The leaf length of D treatment was highest followed by C, B, and A treatments. The root length of D treatment was highest followed by C, A, and B treatments. The nitrogen and phosphate contents of the above ground part of Zoysia japonica were highest in C treatment, followed by D, B, and A treatments. The nitrogen and phosphate contents of the underground part of Zoysia japonica were highest in D treatment, followed by C, A, and B treatments. C and D treatments showed the best results in every aspect of grass growth. The results of this study could be used to identify the cost effective way to improve soil quality for soil surface fixation on reclaimed areas using grass species.
Restoration Method of Small Stream using Artificial Step-pool Sequences
Kim, Suk-Woo ; Chun, Kun-Woo ; Kim, Kyoung-Nam ; Park, Chong-Min ; Marutani, Tomomi ;
Journal of the Korea Society of Environmental Restoration Technology, volume 14, issue 4, 2011, Pages 11~23
Mountain streams, which are major components of an entire river network, play an important role as the source of water, sediment, coarse and fine organic matter, and nutrients for lowland rivers. Therefore, dynamics and downstream linkages of each compartment of the mountain stream can be essential for watershed management in catchment scale. The dynamics and downstream linkages are understood as a development of step-pool sequences along a river course. Recently, stream restoration after flooding event often employ the development of step-pool sequences in the world. In this paper, we 1) examined the geomorphic characteristics and the role of step-pool sequences in steep mountain streams by reviewing the results of past studies, and 2) introduced the case studies of stream restoration using step-pool sequences, and finally 3) addressed design methods considering geometry and stability of artificial step-pool sequences for stream restoration. Step-pool sequences play an important role not only as roughness with energy dissipation but also as heterogeneity of stream feature for aquatic habitat. Step-pool sequences, even if they are constructed artificially along a stream, may be effective for small stream restoration considering eco-friendly torrent controls. So far the artificial step-pool sequences were employed for mountainous streams, but those would be applied to urban stream.
Characteristics Type of Vascular Plants in Jeokjabong, Bogil Island(Jeonnam)
Oh, Hyun-Kyung ; Beon, Mu-Sup ;
Journal of the Korea Society of Environmental Restoration Technology, volume 14, issue 4, 2011, Pages 25~40
The vascular plants in Jeokjabong, Bogil Island were listed 350 taxa composed of 89 families, 233 genera, 309 species, 1 subspecies, 36 varieties and 4 forms. Divided into woody plants were 142 taxa (40.6%) and herbaceous plants were 208 taxa (59.4%). Based on the list of rare and endangered species by Korea Forest Service and Korea National Arboretum, 3 taxa were recorded; Celtis choseniana, Asarum maculatum, Rubus sorbifolius, and endemic plants, 10 taxa were recorded; Asarum maculatum, Cephalotaxus koreana, Carpinus coreana, Celtis choseniana, Lespedeza maritima, Indigofera koreana, Dendropanax morbifera, Ligustrum quihoui var. latifolium, Weigela subsessilis, Carex okamotoi, and plant species subject to permission for taking abroad, 4 taxa were recorded; Celtis choseniana, Asarum maculatum, Vaccinium oldhami, Carex okamotoi. Based on the list of floristic regional indicator plants by Korean Ministry of Environment were total 64 taxa (18.3% of all 350 taxa of vascular plants); Ligustrum quihoui var. latifolium in class IV, 19 taxa (Stauntonia hexaphylla, Cinnamomum japonicum, Zanthoxylum ailanthoides, Daphniphyllum macropodum, Centella asiatica, Verbena officinalis, Mitchella undulata, etc.) in class III, 5 taxa (Potentilla dickinsii, Ostericum melanotilingia, Sanicula rubriflora, Caryopteris incana, Teucrium veronicoides) in class II and 39 taxa (Gleichenia dichotoma, Cyrtomium fortunei, Aphananthe aspera, Rubus hirsutus, Meliosma myriantha, Hedera rhombea, Ainsliaea apiculata, etc.) in class I. Based on the list of naturalized plants, 5 families, 17 genera, 20 taxa (Phytolacca americana, Lepidium virginicum, Robinia pseudo-acacia, Verbesina alternifolia, Lolium perenne, etc.) and naturalization rate was 5.7% of all 350 taxa of vascular plants. Hereafter natural ecosystem into disturbance on naturalized plants and legal protection species and rare and endangered species distribute in the Bogil Island, precision investigation after management counterplan of the monitoring a point of view be required.
Analysis of the Effect of Tree Roots on Soil Reinforcement Considering Its Spatial Distribution
Kim, Dongyeob ; Lee, Sang Ho ; Im, Sangjun ;
Journal of the Korea Society of Environmental Restoration Technology, volume 14, issue 4, 2011, Pages 41~54
Tree roots can enhance soil shear strength and slope stability. However, there has been a limited study about root reinforcement of major tree species in Korea because of some experimental difficulties. Thus, this study was conducted to analyze the performance of Japanese larch (Larix kaempferi) and Korean pine (Pinus koraiensis) which are two common plantation species in Korea. Profile wall method was used to measure the spatial distribution of root system and its diameter within 15 soil walls of Japanese larch stand and 13 soil walls of Korean pine stand in Taehwa University Forest, Seoul National University, Korea. Root tensile properties of each species were assessed in the laboratory, and root reinforcements were estimated by Wu model. The study observed that the number and cross-sectional area (CSA) of root in both species could tend to decrease with soil depth. Especially, CSA were well-fitted to exponential functions of soil depth. Mean root area ratios (RAR) were 0.03% and 0.10% for Japanese larch and Korean pine, respectively. Estimated root reinforcement from Wu model were, on the average, 4.04 kPa for Japanese larch and 12.26 kPa for Korean pine. Overall, it was concluded that root reinforcement increased the factor of safety (Fs) of slope for small-scale landslide as the result of two-dimensional (2-D) infinite slope stability analysis considering vegetation effects.
A Study of Rehabilitation for Limestone Quarry Near Baekdu Daegan Mountain System(1) -In Case Study for Hydroseeding Experiment on Okke Quarry-
Kim, Kyunghoon ; Joo, Paik ; Kim, Haksung ;
Journal of the Korea Society of Environmental Restoration Technology, volume 14, issue 4, 2011, Pages 55~66
The objective of this study was to investigate the possibility of seeding methods for quarry rehabilitation. To achieve the objective, the experiment was designed for rehabilitation of quarry with seed mixing types (woody type and herbaceous type) and forest topsoil. Seeds and seeding materials were applied to the quarry slope using hydroseeding measures. The study was conducted in limestone quarry (Lafarge Halla Cement Inc.) near Baekdu Daegan Mountain System at Okke, Kanwon-do. The experimental seedbed was set in 2007 and field investigation was carried out from 2007 to 2010. As the result of experiment, it was found that the early-phase pattern for surveyed species to establish was affected by the soil mixture types. The mixture type of herbaceous seeds resulted in the higher plant coverage than the woody seeds. The application of forest topsoil showed a potential increase the plant diversity, but it was affected by mixing seeds. Naturally-emerged species as Alnus hirsuta, Quercus mongolica will be useful for rehabilitation at the quarry and damaged slopes.
Restoration of the Prehistoric Site(1) - Focused upon Restituting Paleolithic Site into an Ecological Park -
Moon, Seok-Ki ; Jang, Ho-Su ;
Journal of the Korea Society of Environmental Restoration Technology, volume 14, issue 4, 2011, Pages 67~80
This study is focused upon developing repairing and restoration methodologies of the Paleolithic sites. The Paleolithic era is not only the remote past, which ended ten thounds years ago, but the period of much different ecological condition compared with that of these days. There have been two kinds of conservation method adopted to restoration of Paleolithic sites which are historic park and ecological park. But there left not much historic remains than ecological sources in most Paleolithic sites, restoring them into ecological park is thought to be more reasonable for the purpose of conserving sites and remains. The first step of restoring Paleolithic sites is reconstructing environmental background in which they earned a living with their own life style at that time. There are three ways of ecological restoration for prehistoric sites, which are the reclamation, the rehabilitation, and the restoration. The reclamation requires physical modification, and the rehabilitation does biological modification, but only the restoration requires improved management. Among them, the most desirable way applicable upon the Paleolithic sites restitution is the reclamation.
Effects of Extensive Green Roof System on Rainwater Circulation
Lee, Eun-Heui ; Jang, Ha-Kyung ; Ahn, Geun-Young ;
Journal of the Korea Society of Environmental Restoration Technology, volume 14, issue 4, 2011, Pages 81~88