技術論文(기술논문) : 친환경적 설계인자를 적용한 생태복원공사의 시공성 평가 -거제시 구천천 생태하천 조성공사를 중심으로-

안병철 ( Byung Chul An ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2013 한국환경복원기술학회지 Vol.16 No.4

본 연구에서는 경남 거제시 구천 천을 대상으로 생태하천 조성공사의 시공 성을 분석하고 평가하였으며 다음과 같은 결론을 얻을 수 있었다. 첫째, 구천 천 생태하천 조성공사의 시공 성 평가를 위한 평가지표를 설정하였다. 일반적인 공사품질 평가항목에 본 연구대상지의 공사특성을 감안하여 설계품질과 건설행정부문을 더하여 평가지표를 설정하였다. 크게 대 분류로 공사 품질, 설계품질, 건설행정으로 나누었으며, 중분 류로는 식 재, 시설물, 포장, 급배수공사, 설계 전 문성, 설계도서, 기술시방서, 공사기간, 적정 비용, 참여자인식 등 10개 유형으로 구분하고 소 분류의 평가항목은 해당공사의 세부적 내용으로 구성된 총 20가지로 구성하였다. 둘째, 시 공성 평가결과, 평가항목별로는 급 배 수공사, 석재공사, 포장공사, 식재공사 순으로 시 공성 개선의 필요성이 제기되었으며, 평가 대 상으로는 묵논습지 조성공사와 완경사 저수 호 안공사에서 시 공성이 낮게 평가되었고 수달서 식 처와 자연경관보전 구간은 비교적 적정한 것으로 평가되었다. 설계도면의 누락과 기술시방 의 문제, 시공참여자의 인식문제에 대해서는 개선필요성이 다소 있는 것으로 나타났으나, 설계 개념의 적정성 부문은 참여기술자의 대부분이 적정한 것으로 평가하였다. 셋째, 문제점에 따른 개선방안 제시로서, 품 질 관리에 의해 개선될 수 있는 사항으로 무논 습지조성에서의 유입 수, 유출 수 연결 관의 마감 처리, 논흙처리에 대한 방안과 하천에서의 저수 호 안 돌 쌓기 시공성과 석재공사의 마감처리 등 이 있으며, 동 분야의 기술적 한계점으로서 연 구가 필요한 부분으로는 생태수로의 돌 쌓기 이 음 새 부분의 콘크리트 몰탈처리와 천변수림대 의 폭 원 설정 등을 들 수 있다. 하천 코 리더의 생태적 역할을 수반하는 천변수림대의 폭 원 및 식생의 기능에 대한 연구는 향후 하천 변 생태 복원공사의 기술력 향상을 위한 현실적 대안이 될 수 있을 것이라 판단된다. 그 이외에도 시공 과정에서 설계자와 지속적인 논의와 피드백 과 정이 필요한 속성을 가진 공사라고 판단되며 향후 생태복원공사의 전반에 걸친 시공 성 평가 의 기법이 지속적으로 개발되어야 하겠다. In this study, constructability of ecolog ocal stream restoration process was evaluated and improved approaches for habitat were suggested. The study site is Gucheon River in Geoje city where conducted ecologocal restoration work within maintaining its flood control function. Application of ecological design factors and constructability in the process from planning to construction was analyzed and its results are as follows: In the process of planning and designing, it was focused more on the naturality of Gucheon River rather than the human convinience and ecological design factors were applied within the ecological capacity of the site. First, the indexes for constructability evaluation is selected. It was classified into three major categories as construction quality, design quality and construction administration system. Each index has details, so there are twenty sub indexes for contractibility evaluation. Second, the evaluation results shows that the index most in need of improvement was plumbing construction, followed by Stone construction and pavement construction. design concept was evaluated as appropriate in entire categories. Finally it is suggested that it can be improved in both process of design to enhance the technology and process of construction to enhance the quality management. The constructability of ecological stream needs adaptive management and it must be discussed with its designing which is at the stage before construction. Also it needs discussion with its designer constantly and feed-back process.

누적가시분석(Accumulated Viewshed Analysis)을 이용한 도시녹지 경관변화특성 연구 - 의정부시 장기 미집행 도시공원 내 아파트단지계획을 사례로 -

정윤희 ( Jeung Yoon-hee ),이상민 ( Lee Sang-min ),윤희재 ( Yoon Hee-jea ),이동근 ( Lee Dong-kun ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2018 한국환경복원기술학회지 Vol.21 No.2

This study analyzes the characteristics of the urban landscape changes as a result of the introduction of private parks among the long-term uncollected urban planning facilities and enables the analysis of the characteristics of the urban landscape changes as a result of the introduction of private parks, and applied to the private park projects. The DSM with its building was established for the quantitative landscape analysis to examine the view ratio using the stacked visible analysis. The analysis showed that Jikdong Park had a high frequency of view from downtown to green due to its location, and that the development project of a private park on park and town boundaries significantly lowered the view ratio. This implies a large degree of damage to the landscape by development projects provided protection of the view as a natural landscape is of value. Chudong Park also saw its view ratio of views from downtown to the hills green area of Chudong Park was much lower than that of Jikdong Park. And it was confirmed that the ratio of view changes due to development projects was small compared to that of Jikdong Park. In other words, although Jikdong Park and Chu-dong Park were developed in a similar scale in terms of the ratio of views, they were subject to significant damage due to their location characteristics. It is also meaningful to note that the degree of change in the landscape resulting from development projects that could not be found in the assessment or review of the existing Landscape Impact. As private parks are introduced in the urban green belt, apartment development is being pushed for at the edge of the green belt. This study is meaningful in that it is derived based on the calculation that the survey results are derived based on the changes in the views on green areas that urban residents may experience as the private park project is carried out, and it should be introduced based on the calculation of the private parks. Key Words : sunset law, Privately-

훼손지 비탈면 녹화용 식물소재로의 문수조릿대의 적용성 연구

장형태 ( Hyung Tae Jang ),박원제 ( Won Je Park ),김남춘 ( Nam Choon Kim ),박종민 ( Jong Min Park ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2012 한국환경복원기술학회지 Vol.15 No.1

The study of Arundinaria munsuensis Y. Lee to this day was limited to the field of morphological species classification since its first discovery at Jiri mountain in the late 1990s. This native plants, one of Korean endemic species found in Jiri Mt. necessitates further studies about its use as revegetation plants or groundcover plants in urban areas. This study was launched from this need followed by summaries of results below related to its usage. This targeted species is a native Korean species which its natural distribution on the subalpine zone has merit for the wide range of climatic adaptation. Also, the coverage rate reached 78.3% in three years mostly by rhizome growth with an expectation of full coverage in four years providing less maintenance needs after planting. The net price for the construction of pot seedling methods of this plants is relatively economical than other normal revegetation construction methods. For these reasons, drilling for the plants on cut and fill soil slopes driven from pot seedling adapts Arundinaria munsuensis Y. Lee as efficient revegetation plant. Total construction cost for pot seedling work(30㎝×30㎝) of Arundinaria munsuensis was approximately 21,000won which is in reasonable price range when compared to other revegetation construction methods of disturbed slopes. As a native Korean plant, Arundinaria munsuensis has wide range of climatic adaptation with less maintenance requirement after planting. This study may suggest a strong possibility of Arundinaria munsuensis as a pot planting material in sloped area.

생태네트워크와 접근성 분석에 의한 서울시 미집행 도시공원의 보전 우선순위 평가

강완모 ( Kang Wan-mo ),송영근 ( Song Young-keun ),성현찬 ( Sung Hyun-chan ),이동근 ( Lee Dong-kun ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2018 한국환경복원기술학회지 Vol.21 No.2

This study aims to quantitatively evaluate the conservation priorities of unexecuted urban parks in Seoul both from an ecological and public perspective. To this end, two methodologies, ecological network analysis based on graph and circuit theory and accessibility analysis, were employed in order to assess ecological connectivity of and public accessibility to unexecuted parks, respectively. This study applied linkage-mapping methods (shortest path and current flow betweenness centrality) of connectivity analysis to an integrated map of landscape permeability. The population-weighted accessibility to unexecuted parks was measured based on a negative exponential distance decay function. As a result, for both ecological connectivity and accessibility, Gwanaksan, Suraksan, and Bulamsan urban natural parks are found to be the most important (rank 1-3) to be conserved. For these sites, inner park areas with conservation priorities for connectivity and accessibility were identified. The findings of the study can be used for giving conservation priority to the unexecuted urban parks in terms of long-term sustainable urban planning.

장기 미집행 도시계획시설 중 도시공원을 위한 보전/개발 공간의사결정 시스템

윤은주 ( Yoon Eun-joo ),송은조 ( Song Eun-jo ),정윤희 ( Jeung Yoon-hee ),김은영 ( Kim Eun-young ),이동근 ( Lee Dong-kun ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2018 한국환경복원기술학회지 Vol.21 No.2

Long-term unexecuted urban parks will be released from urban planning facilities after 2020, this may result in development of those parks. However, little research have been focused on how to develop those parks considering conservation, development, spatial pattern, and so on. Therefore, in this study, we suggested an optimization planning model that minimizes the fragmentation while maximizing the conservation and development profit using ACO (Ant Colony Optimization). Our study area is Suwon Yeongheung Park, which is long-term unexecuted urban parks and have actual plan for private development in 2019. Using our optimization planning model, we obtained four alternatives(A, B, C, D), all of which showed continuous land use patterns and satisfied the objectives related to conservation and development. Each alternative are optimized based on different weight combinations of conservation, development, and fragmentation, and we can also generated other alternatives immediately by adjusting the weights. This is possible because the planning process in our model is very fast and quantitative. Therefore, we expected our optimization planning model can support “spatial decision making” of various issue and sites.

대체서식지 조성 현황 및 개선방안 연구 - 환경영향평가 대상 사업을 중심으로 -

심윤진 ( Shim Yun-jin ),정규종 ( Jung Gyu-jong ),어양준 ( Eo Yang-joon ),유윤진 ( Ryu Yoon-jin ),박현경 ( Park Hyun-kyung ),김동환 ( Kim Dong-hwan ),조영호 ( Cho Young-ho ),윤주덕 ( Yoon Ju-duk ),우승현 ( Woo Seung-hyun ),박수곤 ( 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2018 한국환경복원기술학회지 Vol.21 No.2

The intensive habitats loss of natural organisms as a consequence of anthropogenic activities has lead to the use of alternative habitats for species conservation. We reviewed the current status of alternative habitats and suggest the improvement of alternative habitats. Most of alternative habitats regarded in this study are not following the pre-arranged consultation at environmental impact assessment. These alternative habitats are rendered useless due to the insufficient consideration of ecological characteristics of species and lack of detailed plans. A number of alternative habitats are influenced by disturbance such as environmental pollution and construction. Post-monitoring of alternative habitats are needed to estimate immigration rate of species. Post management is also needed to assess the status of population stability. Overall, low effectiveness of alternative habitats is presented in this study. According to the status survey, methods for improvement of alternative habitats are required such as detailed guidelines, establishment of post-monitoring system, improvement of habitat restoration techniques, and guidelines for management and operation of alternative habitats.

망개나무자생지의 식생특성과 활력도 분석

박인환 ( In Hwan Park ),조광진 ( Kwang Jin Cho ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2011 한국환경복원기술학회지 Vol.14 No.2

This study was carried out to investigate vegetation and tree vitality of Berchemia berchemiaefolia habitat to recommend basic information for synecological characteristics. Totally 9 vegetation data were collected and analyzed. And one plant community (Quercus serrata-Berchemia berchemiaefolia community) including 43 families 66genera 72 species 8 varieties and 3 forma was differentiated. Quercus serrata-Berchemia berchemiaefolia community was subdivided into Typical subunit and Quercus mongolica subunit. Species showing the higer r-NCD value in the plant community were Berchemia berchemiaefolia, Quercus serrata, Lindera obtusiloba, Fraxinus rhynchophylla, Acer pseudo-sieboldianum, Corylus heterophylla var. thunbergii. In tree vitality result, Berchemia berchemiaefolia population containing 35 individual was estimated 3 monitoring categories; 1) General 2) Principal 3) Absolute. These categories frequencies arranged by the order General Monitoring (85.7%; 30 individual), Principal Monitoring (11.4%; 4 individual) and Absolute Monitoring (2.9%; 1 individual).

계단상 하상구조를 이용한 계류복원 방안

김석우 ( Suk Woo Kim ),전근우 ( Kun Woo Chun ),김경남 ( Kyoung Nam Kim ),박종민 ( Chong Min Park ),마루타니토모미 ( Marutani Tomomi ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2011 한국환경복원기술학회지 Vol.14 No.4

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.

보길도(전남) 적자봉 일대의 관속식물상 유형별 특성

오현경 ( Hyun Kyung Oh ),변무섭 ( Mu Sup Beon ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2011 한국환경복원기술학회지 Vol.14 No.4

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 quihouivar. latifoliumin 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.

뿌리의 공간분포를 고려한 수목 뿌리의 토양보강 효과에 대한 분석

김동엽 ( Dong Yeob Kim ),이상호 ( Sang Ho Lee ),임상준 ( Sang Jun Im ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2011 한국환경복원기술학회지 Vol.14 No.4

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.