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JOURNAL OF THE GEOMORPHOLOGICAL ASSOCIATION OF KOREA

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수록범위 : 1권1호(1994)~25권4호(2018) |수록논문 수 : 727
한국지형학회지
25권4호(2018년) 수록논문
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KCI등재

1태백 산지 북부의 하천 하각률 분포

저자 : 이광률 ( Lee Gwang-ryul )

발행기관 : 한국지형학회 간행물 : 한국지형학회지 25권 4호 발행 연도 : 2018 페이지 : pp. 1-19 (19 pages)

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This study tries to identify distributional characteristics of stream incision rates at 23 points in the northern part of the Taebaek Mountains. Soyang-gang, Naerin-cheon, Odae-cheon, Dong-gang and upper reaches of Okdong-cheon Rivers closed to the Range show higher incision rates and the rates clearly decrease with distance from the Range. Therefore, the incision process in the northern part of the Range has been greatly influenced by uplift around the Range, and the Sobaek Mountain Range seem to play a role in the incision process. Limestone areas show lower incision rates due to degradation of terrace surface by dissolution. This study suggests that local hydrological, geological and geomorphological conditions can be regarded as an important factor in stream incision rates, although stream incision rates are greatly influenced by regional uplift.

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2한반도 동해안의 모래해안 발달과 암석 분포 사이의 상관성

저자 : 김영래 ( Young-rae Kim )

발행기관 : 한국지형학회 간행물 : 한국지형학회지 25권 4호 발행 연도 : 2018 페이지 : pp. 21-35 (15 pages)

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The distribution and size of sandy beaches along eastern Korea has a close relationship with the presence of granite rocks. In general, elongated and wide beaches with abundant sands are likely to develop along the coasts where granitic basic rocks comprise the dominant geology or where a large amount of sands are supplied by streams from inland granitic rocks. Small sandy beaches, in contrast, appear in non-granitic rocks (i.e., under sedimentary and/or metamorphic geology). Hence, large beaches are observed continuously along the shore of Gangwon-do, of which coasts consist predominantly of granitic geology. Such continuity declines from Samcheok city to Pohang city. The rock of Gyeonbuk-do is commonly known as sedimentary, deposited between the late Triassic and the early Tertiary Periods. Because few sands are supplied from the upstream areas, sandy beaches unlikely develop along the coasts of the province, only showing a sporadic, discontinuous distribution under Bulguksa granite, granitic gneiss, and some volcanic rocks. Erosion was rarely observed in the beaches where granitic rocks are distributed, whereas merely five beaches seemed to have undergone some level of erosion in non-granitic regions. This is presumably because a larger amount of sands than that which had been eroded away was replenished in areas under granitic geology, while under non-granitic geology having a deficit in sands, no large sandy beaches had formed at first.

KCI등재

3해안사구 모래보강을 통한 해안침식 저감 효과 - 충청남도 다사리 사구를 사례로 -

저자 : 공학양 ( Hak-yang Kong ) , 박성민 ( Sung-min Park ) , 신영규 ( Young Kyu Shin ) , 최광희 ( Kwang Hee Choi )

발행기관 : 한국지형학회 간행물 : 한국지형학회지 25권 4호 발행 연도 : 2018 페이지 : pp. 37-47 (11 pages)

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Coastal sand dunes have been regarded as natural defenses to protect hinterland from disasters such as storm surge and typhoons. However, many dunes are not well-deserved in South Korea because of imprudent land development or inappropriate measures after coastal erosion. Lately, beach nourishment and dune reinforcement are emphasized as the effective and environmentally sustainable solution for the coastal protection. They are regarded good strategies to keep landscapes for a time, with little side effects. However, there is little knowledge on the construction methods including proper design and time plans for the best results. In addition, the effects of dune reinforcement in the field should be tested. In this study, we performed sand filling in an eroded dune scarp and surveyed topographic changes in the beach-dune system, which is located along Dasa-ri coast, Chungnam Province, South Korea. Using a network RTK-GPS and drone-based aerial photographs, we analyzed the temporal and spatial changes in the area, before and after the reinforcement. As a result, the dune reinforcement seems to be helpful to mitigates the coastal erosion and to prevent the coastline retreat at least for one year.

KCI등재

4서해안 및 남해안의 해안단구 연구와 융기율

저자 : 박충선 ( Park Chung-sun ) , 김유홍 ( Kihm You Hong ) , 남욱현 ( Nahm Wook-hyun ) , 이광률 ( Lee Gwang-ryul )

발행기관 : 한국지형학회 간행물 : 한국지형학회지 25권 4호 발행 연도 : 2018 페이지 : pp. 49-62 (14 pages)

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This study tries to reveal uplift rates inferred from relative and absolute ages on coastal terrace in the West and South Coasts of South Korea. Uplift rate from relative ages on Pleistocene coastal terrace in the West Coast ranges from approximately 0.059 to 0.282 m/ky, while a range of approximately 0.020~0.385 m/ky is calculated from the South Coast, suggesting that the South Coast shows higher rate than the West Coast. Based on absolute ages on coastal terrace during MIS 5 in the South Coast, on the other hand, the uplift rates 1 and 4 have ranges of approximately 0.042~0.062 m/ky and 0.051~0.087 m/ky, respectively, indicating that uplift rate in the South Coast is one-third to one-fourth to that in the East Coast. No research on absolute ages in West Coast terrace and lack of relative and absolute ages in the West and South Coasts are considered as the limit in this study.

KCI등재

5한반도 남동부 해안 해성단구의 분류와 편년에 있어서 본 연구에서 도출된 OSL 연대 적용의 한계성 검토

저자 : 최성길 ( Seong Gil Choi ) , 타무라토시카즈 ( Toshikazu Tamura ) , 미야우치타카히로 ( Takahiro Miyauchi ) , 츠카모토스미코 ( Sumiko Tsukamoto )

발행기관 : 한국지형학회 간행물 : 한국지형학회지 25권 4호 발행 연도 : 2018 페이지 : pp. 63-75 (13 pages)

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The lower marine terrace 1 and 2 surfaces distributed between Ulsan and Pohang coast in the southeastern coast of the Korean penninsula have been correlated with MIS 5e and 5a (or 5c) by amino acid dates, 14C dates, wide-spread tephra correlation and pollen analysis respectively. In this study, to test the reliability of the OSL method for the estimation of the numerical burial age of marine sediment deposits, we analyzed the samples from the marine terraces which have been known as typical marine terraces formed during MIS 5e and MIS 5a in the above-mentioned coast. The burial ages of the marine deposit of the lower marine terrace 1 and 2, with paleoshoreline altitudes of 18m to 19m and 10m to 11m respectively, both showed about the same age of 60 ka BP. The lower marine terraces 1 and 2, however, were divided into two terrace surfaces by a clear terrace cliff. Besides, the OSL dates of the lower and upper parts of the lower marine terrace 2 of the Bonggil coast showed the reversed burial ages. In the lower marine terrace 1 of the Sanhari coast, almost the same burial ages were derived from both the lower part (marine rounded gravel layer) and the upper part (terrestrial angular gravel layer) of the terrace deposit. Therefore, at the present time, judging from only the OSL dates measured in this study, it could be argued that the OSL method is not the best for the estimation of forming periods of the lower marine terraces 1 and 2 and their classification.

KCI등재

6연천 은대리 물거미 서식지의 지형적 특성

저자 : 양재혁 ( Yang Jae-hyuk )

발행기관 : 한국지형학회 간행물 : 한국지형학회지 25권 4호 발행 연도 : 2018 페이지 : pp. 77-88 (12 pages)

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Wetlands is developing on the lava plateau in Eundae-ri, even though there are no major streams into this area. As a result of drilling, 1~2m clay layer is founded under the superficial formations of the wetland, which are the main reasons for formation of the wetlands by limiting vertical drainage. The clay layer's Granulometry/XRD show very different characteristics from in situ weathering of basalt, and since 2~3cm of sand layer exist within the profile, the clay layer seems to be supplied and deposited from outside through surface/sheet flows. To keep the wetlands sustainably, the supply of water into the wetlands has to be increased by restoring the surface/sheet flow which is limited or deformed by pavement road.

KCI등재

7돌매화나무 서식지로서 한라산 정상 암벽 표면의 온도특성

저자 : 김태호 ( Kim Taeho ) , 이승욱 ( Lee Seung-wook )

발행기관 : 한국지형학회 간행물 : 한국지형학회지 25권 4호 발행 연도 : 2018 페이지 : pp. 89-101 (13 pages)

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In Mt. Halla, an arctic-alpine plant Diapensia lapponica var. obovata largely clings to rock surfaces. We observed the rock-surface temperatures of a rocky ridge on the summit area of the mountain from late April 2009 to early May 2010 in order to examine the diurnal and annual temperature variations and the thermal amplitude. We also investigated temperature regimes such as the frequency of freeze-thaw cycles and the temperature change, which might endanger the habitat through frost weathering. For comparison of slope aspects, temperature monitoring was carried out on the north and south faces of the same rocky ridge. The south face experiences the high daily maximum rock-surface temperatures and the high thermal amplitudes during the unfreezing season of May to November 2009. The temperature regimes are considered to exert physiological stress to the arctic-alpine plant. In addition, the south face shows the high frequency of freeze-thaw cycles during the seasonal freezing period of December 2009 to April 2010. This indicates that the south face is susceptible the exfoliation and granular disintegration of rock surfaces, which results in habitat destruction. As a consequence, the south face is believed to be less favorable for the establishment and growth of the arctic-alpine plant than the north face on the summit area of Mt. Halla.

KCI등재

8능선환경으로 본 천안 백석동 청동기시대 취락의 최적 입지환경 - 지형분석과 GIS분석을 이용한 주거지 입지 특성에 주목하여 -

저자 : 박지훈 ( Park Ji Hoon ) , 이애진 ( Lee Ae Jin )

발행기관 : 한국지형학회 간행물 : 한국지형학회지 25권 4호 발행 연도 : 2018 페이지 : pp. 103-116 (14 pages)

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The purposes of this research are as follows: First, to reconstruct the optimal locational environment of the Bronze Age settlement in Cheonan Baekseok-dong (hereinafter referred to as the study settlement). Second, to identify the priority ranking of the topographical factors that influenced the Bronze Age people when selecting their the settlement location. For these reasons, the topographical factors of the 200 Bronze Age dwellings (hereinafter referred to as dwellings) confirmed in the survey area were analyzed through the ridge's environmental perspective. The results are as follows: First, the optimal ridge environment of the Bronze Age settlement is largely a sub-ridge in N-S direction (for example, NNW-SSE, N-S, NNESSW), especially at the top (Crest slope, Crest flat) of the south-facing aspect of the ridge. Second, when the Bronze Age dwellers selected a residential location, they carefully considered topographical factors in the following order: ① the slope direction of the ridge surface, ② the micro-landform of the ridge, ③ the ridge scale, ④ the ridge direction, and ⑤ the surface relief. The results of this study could be used as basic data in related fields such as archaeology, quaternary research, and traditional architecture and so on.

KCI등재

9강화도 동막해변의 지질명소로서 가치와 증진 방안에 관한 연구

저자 : 박경 ( Park Kyeong )

발행기관 : 한국지형학회 간행물 : 한국지형학회지 25권 4호 발행 연도 : 2018 페이지 : pp. 117-129 (13 pages)

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Dongmag beach area contains diverse geological and geomorphological outcrops which can be used for geotourism purposes. They are as follows; headland with granodiorite with plenty of enclaves and sandy beach, which is fed from Manisan with well-developed sheeting joints composed of granite and granodiorite. Weathered material from the hillside feeds the one and only sandy beach in Ganghwado Island. Weathered outcrop at the hillside behind beach exposes typical spherical weathering also. Bunori Dondae Fort which was built on top of sea cliff with granodiorite has plenty of history and cultural values commands an extraordinary view of tidal flats and coastal landforms. This geosite with high geodiversity can be used for interpreters who provide balanced views of nature conservation.

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1연안해역에서 석유오염물질의 세균학적 분해에 관한 연구

(2006)홍길동 외 1명심리학41회 피인용

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2미국의 비트코인 규제

(2006)홍길동심리학41회 피인용

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2미국의 비트코인 규제

(2006)홍길동41회 피인용

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