• Title/Summary/Keyword: 계곡수

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A study on World Heritage conservation policies through the case of the Dresden Elbe Valley (드레스덴 엘베계곡의 사례로 본 세계유산 보존 정책)

  • Jo, Eugene
    • Korean Journal of Heritage: History & Science
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    • v.48 no.2
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    • pp.96-109
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    • 2015
  • The Dresden Elbe Valley of Germany was delisted from the World Heritage List after a long dispute amongst the city of Dresden, UNESCO and the World Heritage Committee upon a plan to build a four-lane bridge within the boundaries of the property. The plan was claimed to threaten the Outstanding Universal Value of the heritage embedded in the view of the river landscape. However looking back on the necessity of the bridge in order to maintain the city dynamics and the needs of the local population, it is possible to diagnose that plans for the bridge had a rather different nature from the usual urban 'development' plans appearing in the vicinity of other World Heritage properties. This article examines the process that led to the delisting of the Elbe Valley from the World Heritage List and assesses the problems arising between the entities which determine the value of the heritage and the entities that implement conservation measures. Recognizing the necessity of involving the local residents, this article stresses the importance of the role of communities in heritage conservation. It is also important to set up dependable directions for establishing conservation policies which takes into account the changing dynamics of the living environment, and sound methods for assessing the impact of future projects on the heritage.

Characteristic Analysis of Inflow and outflow Using Erosion Control Dam in the Mountainous Watershed (산지유역에서의 사방댐 위어를 이용한 유입량 및 유출량 특성 분석)

  • Moon, Duck Young;Lim, Kwang Suop
    • Proceedings of the Korea Water Resources Association Conference
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    • 2015.05a
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    • pp.487-487
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    • 2015
  • 우리나라의 강우 특성 상, 여름철에 집중되는 강우로 인해 홍수가 빈번히 발생하고 겨울과 봄에는 수자원이 부족한 현상이 발생한다. 또한 최근 기후변화에 따라 홍수와 가뭄의 강도와 빈도가 증가하고 있으며, 그로 인한 피해는 점차 증가하고 있다. 이러한 기후변화에 대응하여 효율적인 수자원 관리를 위해서는 저수지와 댐에서의 정량적인 물관리가 필요한 실정이다. 신뢰도 높은 저수지 수문자료 생성을 위하여 상류지역에서 저수지로의 유입량을 정확히 계측하는 것은 저수지 관리에서 무엇보다도 중요하다. 하지만 저수지 상류의 경우에는 대부분 산지 계곡 지형으로 이루어져 일반적인 유량측정에 사용되는 프로펠러 유속계를 이용한 도섭법 유량측정의 경우 많은 제약이 있다. 또한 이에 따른 유량 측정의 신뢰도가 매우 낮아지는 어려움이 존재한다. K-water 연구원은 이러한 문제점을 해결하고 신뢰도 높은 유량측정을 위해서 2012년 10월, 전북 무주군에 위치한 덕곡제 상류 1km 지점의 사방댐에 예언위어를 설치하여 유량측정을 실시하였다. 사방댐은 보통 계곡과 같은 하상구배가 큰 산지 지형에서 갑작스런 강우에 의해 발생하는 급류로 산사태가 일어나는 것과 토사 유출을 방지하기 위해 건설되며, 이러한 사방댐에 예언위어의 설치를 통해 사방댐의 기존용도 외에 유량측정도 할 수 있도록 하였다. 사방댐의 형태를 유지하면서 유량 측정을 위해 폭 12m, 높이 20cm의 예언위어를 설치하였고, 부식을 방지하기 위해 스테인리스 재질을 선택하였다. 사방댐에 설치된 위어로부터 측정된 수위를 유량 환산식에 대입을 함으로써 간단하게 유량산출을 가능하게 하였다. 사방댐에 설치된 위어에 기포식 수위계를 설치하여 30분 단위로 수위를 측정하여 유출량을 측정하였다. 또한 근처의 플럭스 타워에 설치된 강우량계에서 측정된 강우량을 통하여 유입량을 산정하였고, 이를 통하여 유출률을 분석하였다. 이와 같이 사방댐을 활용한다면 인력에 의한 유량측정보다 저비용으로 신뢰도 높은 유량 자료를 얻을 수 있으며, 이를 통해 저수지에서 합리적이고 효율적인 수자원 관리를 할 수 있을 것이라 판단된다.

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저 깊은 계곡, 차고 깨끗한 물 속에 열목어와 산천어가 있다!

  • Song, Ho-Bok
    • 한국상하수도협회지
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    • s.3
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    • pp.84-85
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    • 2003
  • 일반인들은 BOD나 COD가 몇 ppm 쯤 되어야 1급수인지, 또는 DO의 농도는 얼마나 되어야 2급수가 되는지 알고 있을까? 그 숫자들을 기억하는 사람들은 별로 없을 것이다. 그러나 집 앞에 흐르는 냇물이 1급수인지, 2급수인지 쉽게 판별하는 아주 좋은 방법이 있다. 바로 지표생물을 통해서이다. 어떤 환경에 서식하면서 그 환경의 상태를 나타내는 생물들을 지표생물이라 하는데, 수환경도 마찬가지로 금강모치나 플라나리아가 살면 1급수, 피라미는 2급수, 붕어나 잉어가 살면 3급수, 실지렁이가 살면 4-5급수 등으로 구분할 수 있다.

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Slope Stability and Characteristic of Shallow Landslides Occurred in Granite Hillslopes (화강암 산지에서 발생한 사면붕괴의 특징과 사면 안정성 해석)

  • 다나카유키야;김홍규
    • Proceedings of the KGS Conference
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    • 2004.05a
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    • pp.43-43
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    • 2004
  • 본 연구지역은 강원도 강릉시 사천면 노동리에 위치해 있다. 이 지역에서는 2000년 4월에 산불이 발생한 지역으로 사면에 목본이 거의 없고 초본이나 조립사업에 의해 작은 나무들이 식재 되어 있다. 연구지역 일대의 지질은 쥬라기 대보 화강암인 흑운모화강암으로 이루어져있다. 화강암으로 이루어진 본 연구지역에서는 토어(tor), 핵석(core stone) 등을 일부 확인할 수 있으며 유수의 침식을 많이 받은 능선이나 계곡을 따라 기반암이 노출되어 있다. (중략)

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동소종인 갈겨니 Zacco temmincki와 피라미 Z. platypus에 기생하는 아가미흡충 Paradiplozoon triorchidids 출현빈도

  • 윤길하;이완옥;김대희;김응오;이종윤
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2000.05a
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    • pp.453-453
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    • 2000
  • 우리나라에 서식하는 담수어류는 약 200여종이며, 이중에는 산과 계곡이 많은 지형 및 기후 특성에 적응 분화한 특이한 종들도 많다. 그러나 환경파괴로 인하여 출현수가 격감하거나 별종의 위기에 처한 담수어류도 다수 존재한다. 따라서 이런 어종을 인공번식시켜 우리의 생물자원을 보존하기 위한 연구가 필요한 실정이다. 이런 단수어류중에 갈겨니Zacco temmincki와 피라미 Z. platypus는 잉어목, 잉어과에 속하는 소형 담수어로 우리나라의 서남해로 유입되는 하천에 자연분포하며, 산란기에는 아름다운 혼인색을 가지므로 관상어로서의 높은 가치를 가지고 있다.(중략)

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Geomorphic Features of Bing-gye Valley Area(Kyongbuk Province, South Korea) -Mainly about Talus- (의성 빙계계곡 일대의 지형적 특성 -테일러스를 중심으로-)

  • Jeon, Young-Gweon
    • Journal of the Korean association of regional geographers
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    • v.4 no.2
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    • pp.49-64
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    • 1998
  • Bing-gye valley(Kyongbuk Province, South Korea) is well known as a tourist attraction because of its meteorologic characteristics that show subzero temperature during midsummer. Also, there are some interesting geomorphic features in the valley area. Therefore, the valley is worth researching in geomorphology field. The aim of this paper is to achieve two purposes. These are to clarify geomorphic features on talus within Bing-gye valley area, and to infer the origin of Bing-gye valley. The main results are summarized as follows. 1) The formation of Bing-gye valley It would be possible to infer the following two ideas regarding the formation of Bing-gye valley. One is that the valley was formed by differential erosion of stream along fault line, and the other is that the rate of upheaval comparatively exceeded the rate of stream erosion. Especially, the latter may be associated with the fact that the width of the valley is much narrow. Judging that the fact the width of the valley is much narrow, compared with one of its upper or lower valley, it is inferred that Bing-gye valley is transverse valley. 2) The geomorphic features of talus (1) Pattern It seems to be true that the removal of matrix(finer materials) by the running water beneath the surface can result in partly collapse hollows. Taluses are tongue-shaped or cone-shaped in appearance. They are $120{\sim}200m$ in length, $30{\sim}40m$ in maximum width. and $32{\sim}33^{\circ}$ in mean slope gradient. The component blocks are mostly homogeneous in size and shape(angular), which reflect highly jointed free face produced by frost action under periglacial environment. (2) Origin On the basis of previous studies, the type of the talus is classified into rock fall talus. When considered in conjunction with the degrees of both weathering of blocks and hardness of blocks, it can be explained that the talus was formed under periglacial environment in pleistocene time. (3) The inner structure of block accumulation I recognize a three-layered structure in the talus as follows: (a) superficial layer; debris with openwork texture at the surface, 1.3m thick. (b) intermediate layer: small debris(about 5cm in diameter) with fine matrix(including humic soil), 70cm thick. (c) basal layer: over 2m beneath surface, almost pure soil horizon without debris (4) The stage of landform development Most of the blocks are now covered with lichen, and/or a mantle of weathering. It is believed that downslope movement by talus creep well explains the formation of concave slope of the talus. There is no evidence of present motion in the deposit. Judging from above-mentioned facts, the talus of this study area appears to be inactive and fossil landform.

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The Change of Vegetation Structure by Slope and Altitude in Taebaeksan Provincial Park (태백산도립공원의 사면 및 해발고별 식생구조 변화)

  • Lee, Sang-Cheol;Kang, Hyun-Mi;Choi, Song-Hyun;Park, Seok-Gon;Yu, Chan-Yeol
    • Korean Journal of Environment and Ecology
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    • v.30 no.3
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    • pp.376-385
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    • 2016
  • Through the vegetation survey of Geumcheon Valley on the south-facing slope and the other side of the valley, Jedanggol on the north-facing slope in Taebaeksan Provincial Park, the characteristics of vegetation structure and change by slope and altitude were examined. From Geumcheon Valley(850m) via the ridge(1,380m) to Jedanggol(950m), thirty plots at intervals of 50m altitude were selected for investigation. According to the results of the analysis, Acer pictum subsp. mono, Fraxinus rhynchophylla, Betula davurica and Lindera obtusiloba were observed only in the south-facing slope, while Sorbus commixta, Prunus padus, Prunus maackii and Acer komarovii were observed only in the north-facing slope. However, Quercus mongolica, Betula costata, Cornus controversa, Tilia amurensis, Acer pseudosieboldianum and Magnolia sieboldii were found to be distributed over both the slopes. The analysis of ordination found that the vegetation was distributed discontinuously by slope. Especially, the vegetation of the north-facing slope appeared to be affected by the direction that the slope faces. Quercus mongolica community, which is the dominant species at an altitude of over 1,200m, was determined to be affected by elevation factor. The maximum age of the major trees was as follows: Betula costata and Quercus mongolica were estimated to be 53-year-old and 113-year-old respectively.

Roadside Landslide and Ditch Erosion in Mountain Forest Road (산악지림도(山岳地林道)의 노견(路肩) 사면붕괴(斜面崩壞)와 측구침식(側溝浸蝕)에 관(關)한 연구(硏究))

  • Ma, Sang Kyu
    • Journal of Korean Society of Forest Science
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    • v.76 no.2
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    • pp.161-168
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    • 1987
  • Forest road (10 Km) constructed for the demonstrational purpose by Forest Work Training Center (F.T.C.) in 1984 was partly damaged through the roadside landside and ditch erosion by the typhoon in 1986. The causes were investigated to apply for protecting against the damage of mountain forest road. The damaging length caused by roadside landside is around 3% out of total length of 10 Km forest road, and mostly coming from the curve road filled up more than 10 m slope length on the concave mountain slope, partly from the foot of fillslope along the ever-following valley and from the both side of fillslope under the outlet of culvert with ever-flowing water. In case of ditch erosion, the big damage at V-type ditch is coming from the overflow of valley water flowing down along the inside slope. Other problem is also showing in the steepness of longitudial gradient, which is felt as a problem in road to be constructed under more than 10 persent of gradient. Other cause of ditch erosion is coming from the bury of sand basin (water collecting wall) by the debris in small diameter culvert zone, namely less than 400mm, in diameter and by the soil mass slumped down from steep wall slope. From above results the causes of F.T.C. model road damage is showing to come from no-following the general guide or little experience to protect against the forest road damage. When improved above mentioned mistakes, F.T.C. Method of mountain forest road type could be developed as a model of Mountain forest road.

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A Study on the Original Planting Form and Management of Vegetation of the Scenic site Nr. 60 Chungam Pavilion and Seokchun Valley in Bonghwa (명승 제60호 봉화 청암정과 석천계곡의 식재 원형 및 식생 관리 방안에 관한 연구)

  • Yee, Sun
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.32 no.4
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    • pp.73-84
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    • 2014
  • This research has conducted historical data analysis and on-site investigation on Chungam Pavilion and Seokchun Valley in Bonghwa. Based on the results, the original planting form was identified, and the vegetation management were drawn up. The results of this study can be summarized as follows. First of all, The Book of Seokchun states that there used to be forest trees such as pine tree, saw-leaf zelkova and maple tree, and flowering trees such as peony, royal azalea, rose, chrysanthemum, and lotus, planted around Chungamjeong. Around Seokchunjeongsa, there used to be boxwood, bamboo, maple, peach, gooseberry and peony planted in the area. Through this discovery it can be realized that the vicinity of Chungam Pavilion and Seokchunjeongsa provided not only the grand aesthetics of four clear seasons, but also planting landscapes with various symbolistic significance and meanings. The description of the planting situation in the historical records offers a useful reference for future vegetation management in Chungam Pavilion, Seokchunjeongsa and surrounding valleys. Furthermore, it holds critical value in the identification of planting pattern in late Chosun dynasty. Second, the planting landscape in and around Chungam Pavilion and Seokchunjeongsa will have to be maintained as described in the historical records The Book of Seokchun. Also, the once famous colony of pine trees in the area is gradually reducing in its scale, which calls for active management measures such as elimination of broadleaf trees.

Distribution of Major Deciduous Tree Species in Relation to the Characteristics of Topography in Mt. Joongwang, Gangwon Province(I) (강원도 중왕산 지역의 지형 특성에 따른 주요 활엽수종의 분포(I))

  • Um, Tae Won;Lee, Don Koo
    • Journal of Korean Society of Forest Science
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    • v.95 no.1
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    • pp.91-101
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    • 2006
  • This study was conducted to analyze the relationships between distributions of major hardwood species and characteristics of topography in natural hardwood forest at Mt. Joongwang, Pyongchang-gun, Gangwon-do which belongs to mid-northern part of the temperate forest. Acer pictum var. mono, Acer manshuricum and Quercus mongolica were affected by elevation, while Ulmus davidiana var. japonica and Fraxinus rhynchophylla were affected by the change of slope. Importance values of A. pictum, Betula costata, Ulmus laciniata and Cornus controversa in valley were 13.41%, 5.68% and 3.29%, respectively, which were higher than in any other topography. Species diversity of valley was the highest with 0.98. Ratio of A. pictum and Q. mongolica in dominant species were 24% and 14%, respectively in valley, while were 19% and 23% in slop. Q. mongolica ratio in ridgeline was higher than any other species. Importance values of A. pictum increased continuously until elevation 1,200 m. importance values of F. rhynchophylla was 6.6% which was the highest value found on elevation 800 m. Distributions of major hardwood species were different according to the elevation. The ratio of Q. mongolica and A. pictum were 6.4%~17.5% and 6.0%~10.7% respectively, which were the highest ratio. Species diversity increased according to the increase of the elevation.