• Title/Summary/Keyword: LANDFORM STRUCTURE

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A Study on Figure of Landform of Yong-San (용산의 지형형상에 관한 연구)

  • 강영조
    • Journal of the Korean Institute of Landscape Architecture
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    • v.24 no.3
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    • pp.68-78
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    • 1996
  • In this study, it was carried out to characterize the figures of landform of Yong-San, called dragon mountain implied indentity and emblem of local landscape by analyzing palce name extracted from four county in Kyongsang Nam-Do. The figures of landform of Yong-San was characterized and divided into three types, called as Waryong lying dragon), Banryong(dragon lying in a coil), Yongdu(dragon's crown). And the spatial characterstics of three types of landform were analyzed. Furthermore, it was investigated the development of outlines of characteristic landform recognoxed as a Yong-San and figured out the structure of landform which was easily recognized. According to the results, the outlines and the spatial structure of landform recognized as a Yong-San including a symbolic meaning can be used as a standard of judgement if an area should be reserved for the efficient conduct of regional plan.

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The Landform Developments in Relation with the Geologic Structures

  • Kim, Joo-Hwan
    • Journal of the Speleological Society of Korea
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    • no.69
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    • pp.9-20
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    • 2005
  • Geologic Structures are reflected on the landform development. So lots of studies are emphasized on the individual processes and mechanism of the relationship between geologic structures and landforms. In this study, many cases are represented, such as : weathering, stream directions and structures expecially joints, gnamas, meander bending etc. New D-D Diagrams and photos are available to explain the relations of two factors. Landform developments are depend on geologic structures.

Study on Change in Landscape Structure over Time in Suburban Area by Using GIS -Case Study of Kawachinagano City, Osaka-

  • Kaga, Horoyuki;Izaki, Noriaki;Shimomura, Yasuhiko;Masuda, Noboru
    • Journal of the Korean Institute of Landscape Architecture International Edition
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    • no.1
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    • pp.67-74
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    • 2001
  • Now that importance of landscape planning unique to each area is emphasized, it is necessary to conduct landscape planning by taking advantage of natural environments unique to each ares, because its natural environments are regarded as one of the assets the area possesses. This study targets at Kawachinagano City, Osaka, one of the residential areas that I not only rich in natural and historical elements, but also has been rapidly growing. The purposes of this study are to evaluate change in landscape structure over time by analyzing relation between landform and pattern of expanding the built-up area at three time points of 1932, 1967, and 1994 with GIS (ARC/INFO 7.0.3, ARC/View 3.0 (ESRI)), as well as to make some suggestions for planning landscape unique to the area. Data on main ridges, sub ridges, main rivers, and other landform were read from the elevation map, and data on woodland, and parks and open spaces (having more than 3 ha area) were read from the existing land use map. The data were used to understand the natural structure of the city from topographic viewpoint. Next, the existing land use map prepared with data on the built-up area and urban axes consisting of roads and streets were overlaid on the elevation map in order to understand relation between pattern of expanding the built-up area and the natural structure.

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Characteristics and classification of landform relieves on mountains and valleys with bedrock types (기반암별 산지와 곡지의 지형 기복 특성과 유형)

  • Lee, Gwang-Ryul
    • Journal of The Geomorphological Association of Korea
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    • v.21 no.4
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    • pp.1-17
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    • 2014
  • This study analyzed characteristics of landform relieves on 12 bedrock whole(W) areas and 24 mountain(M) and valley(V) areas. Based on this result, characteristics and relations between bedrocks and landform relief were classified as follows. 1) gneiss-height M and granite-height W, M, V areas show active stream incision for uplift. However these areas have relatively low relief and grade compared to high altitude, because effect of denudation don't pass on whole slope. 2) gneiss-height W, V, gneiss-mid M, schist M, granite-mid M, volcanic rock W, M, sedimentary rock-height(conglomerate) W, M, V, sedimentary rock-mid (sandstone and shale) M, limestone W, M areas have active stream erosion and mass movement, but landform relieves are on the high side, because these have resistant bedrock and geological structure against weathering and erosion. 3) gneiss-mid W, V, schist W, V, granite-mid W, V, volcanic rock V, sedimentary rock-mid W, V, sedimentary rock-low(shale) M, limestone V areas landform relieves are on the low side, because these have weak resistance and active weathering, mass movement, erosion, transportation and deposit. 4) gneiss-low W, M, V, granite-low W, M, V, sedimentary rock-low W, V areas landform relieves are very low, because these don't have active erosion and mass movement as costal area with low altitude.

Geomorphological Processes of Jaein Waterfall and Dissection Valley in Hantangang Lava Plateau, Central Korea (한탄강 용암대지의 재인폭포와 개석곡의 지형 형성)

  • Lee, Min-Boo;Lee, Gwang-Ryul
    • Journal of The Geomorphological Association of Korea
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    • v.24 no.3
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    • pp.47-59
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    • 2017
  • This study aims to analyze geomorphologically Jaein Falls in Hantangang Lava Plateau for the landform structure, landform classification, falls dissection and recession. The height and recession length of the Falls are approximately 18m and 340m. after dissection valley arrive at area of the Jijangbong Volcanic Rock Complex of Mesozoic era, the fall will disappear. The structure of the dissection valley shows totally well vertical columnar joint near falls and plunge pool, colluvial talus deposits toward lower reach by the freezing-thawing and wet-dry activities, and alluvial cone and delta in estuary to Hantangang River. The Falls' age date and recession rate in the valley maybe relate to the age of the lava plateau. The estimated recession rate of the fall should be 8.75m/ka to 2.3m/ka, depending on the age 500ka to 40ka in lava plateau.

A Study of Regional Geomorphology in the Chugaryeong Tectonic Valley, Central Korea (추가령 구조곡의 지역지형 연구)

  • Lee, Min-Boo;Lee, Gwang-Ryul
    • Journal of the Korean Geographical Society
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    • v.51 no.4
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    • pp.473-490
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    • 2016
  • This study aims to analyze the regional geomorphology of the Chugaryeong Tectonic Valley which has been one of the most important areas for Korean geomorphological research. Though the Chugaryeong Tectonic Valley has been thought important for the tectonic settings and orographic processes in Korea, geomorphological and geological discussions still are sustaining for finding out evidences of the settings. The Chugaryeong valley region has many geomorphic themes such as tectonic structure, volcanics, river, mountain, terrace, lake and sediment layers. The research of the valley focuses on the comprehensive analysis of the previous references mainly including geomorphic naming, geomorphology and geology, and history of the study for estimating the origin of tectonic valley, formation of the lave plateau, change of river structure by dissection, restoration of the landform before lava eruption, and the processes and age dating of the various landforms. Conclusively, the Chugaryeong Tectonic Valley may be recognized as the linear region of the tectonic and volcanic landforms with other various applied geomorphic settings.

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Distribution Pattern of Growth Plants with Peucedanum japonicum Community in Sea Cliff Plants, Korea (한반도 해식애 갯기름나물(식방풍)군락의 동반 출현식물 분포양상)

  • Song, Hong-Seon;Cho, Woo;Park, Yong-Jin
    • Korean Journal of Environment and Ecology
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    • v.23 no.4
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    • pp.346-352
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    • 2009
  • This study was conducted in order to provide as a basic materials of sea cliff vegetation structure through distribution related with the landform and growth pattern of mixed growth plants by ordination method in the Peucedanum japonicum community of Korea. The mixed growth plants of frequency over 10% growth with Peucedanum japonicum community of sea cliff was investigated as a total 26 species, and the frequency of appearing plants was the highest in the Aster spathulifolius(55.7%). Growing pattern of mixed growth plants was a difference by the landform factors as such the inland side, coastline side, flat and slope. Growing pattern was classified into typicality type, one-sided type and complex type. Growing pattern of the typicality type was good distribution in total landform factors, the one-sided type was good distribution in 1 landform factor and the complex type was good distribution in 2 landform factors. In growing pattern of mixed growth plants with Peucedanum japonicum, Artemisia capillaris and Sedum oryzifolium was typicality type, Elymus dahuricus and Artemisia princeps was one-sided type, and Aster spathulifolius, Miscanthus sinensis, Calystegia soldanella and Lysimachia mauritiana was complex type. In total plants of mixed growth, growing pattern of 16 species of 61.5% was good as complex type.

Growth Pattern and Species Composition by Landform and Seaside Distribution of Peucedanum japonicum Thunb. Community Group in Korea (갯기름나물 군락군의 해안과 지형 별 종조성 및 생육양상)

  • Song, Hong-Seon;Cho, Woo
    • Korean Journal of Environment and Ecology
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    • v.21 no.1
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    • pp.74-81
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    • 2007
  • This study investigated the growth pattern and species composition by landform and seaside distribution to evaluate the basic community structure and topographical distribution of the Peucedanum japonicum Thunb. community group in Korea. The appearing plants with the Peucedanum japonicum Thunb. were a total 170 taxa belonging to 130 genera and to 57 families, and the species number by families was the most in Compositae of 30 taxa. The frequency of appearing plants was the highest in the Aster spathulifolius Max.(54.1%), and the east and west seasides were the highest in the Aster spathulifolius Max. and south seaside was the highest in the Miscanthus sinensis Ander.. The ratio of common plants among seasides was the highest between the west and south seasides of 35.6% with 47 taxa. The distribution landforms of the Peucedanum japonicum Thunb. was a $17.4^{\circ}$ slope of the unevenness landform, vertical joint, horizontal joint, blockfield, planation surfaces and the rocky seaside of the sea cliff. The distribution among landforms was the greatest in the rocky seaside of the 61 regions. The sociability on growing pattern was the highest in the 3 sociability rank of 54.6% with the 83 region.

Biotope Mapping of Pinus densiflora Based on Growth Environment of Tricholoma matsutake - A Case Study of Yangyang-gun, Kang Won-do - (송이 생육환경 특성을 고려한 소나무비오톱지도 작성 연구 - 강원도 양양군을 사례로 -)

  • Han, Bong-Ho;Park, Seok-Cheol;Kwak, Jeong-In;Kim, Bo-Hyun;Lee, Kyong-Jae
    • Korean Journal of Environment and Ecology
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    • v.25 no.2
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    • pp.211-226
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    • 2011
  • The purpose of this paper was to ensure the basis for effective management of Tricholoma matsutake mountain province, to perform biotope mapping of Pinus densiflora based on growth environment of Tricholoma matsutake, target a cluster of Yangyang-gun, Kang Won-do. Study Methods were to review on growth and environmental characteristics of Tricholoma matsutake through internal and external documents and to identify vegetational structure and soil characteristics. This paper studied growth structure and soil environment of Pinus densiflora forest where a farm of production area for Tricholoma matsutake of in order to set the standard of Pinus densiflora biotope. Mapping standards were derived by separating of landform conditions, soil conditions, vegetation conditions. Biotope types were divided into possible production area for Tricholoma matsutake and potential production area for Tricholoma matsutake, possible production area for Tricholoma matsutake were Pinus densiflora biotope in landform and soil structure that enables Tricholoma matsutake production and Single-layered Pinus densiflora biotope of less than 30cm(DBH)-Tree species that other shrub is dominant in shrub layer, Multi-layered Pinus densiflora biotope that Pinus densiflora forest was predominant in understrory layer. Potential production area for Tricholoma matsutake were single-layered Pinus densiflora biotope of more than 30cm(DBH) in landform that enables Tricholoma matsutake production, Pinus densiflora biotope with Quercus predominant in the understrory layer, single-layered Pinus densiflora biotope with Quercus predominant in shrub layer, inappropriate vegetation structure area that the induction of production of Tricholoma matsutake was possible through future vegetation management. According to the research results, Pinus densiflora forest were divided into 16 types; 6 types of possible Tricholoma matsutake production areas, 9 potential Tricholoma matsutake production areas and 16 types of areas where Tricholoma matsutake production was impossible. Possible production areas account for 15.48%, or $9.8km^2$ out of the total Pinus densiflora forest while potential production areas take up 32.42%, or $20.52km^2$, and areas where Tricholoma matsutake production was impossible was 52.10%, or $32.97km^2$.

Evaluation Method Development for Ecological Restorations by Damaged Types (훼손지 유형에 따른 생태복원 평가방법 개발)

  • Choi, Jaeyong;Lee, Sanghyuk;Lee, Sol Ae;Ji, Seung Yong;Lee, Peter Sang-Hoon
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.19 no.1
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    • pp.121-133
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    • 2016
  • It was required to evaluate ecological restorations in a comprehensive way in order to systematically manage conservation areas such as DMZ and national parks in South Korea. In this research we developed a new approach to evaluating ecological restorations with more various indexes than vegetation covering-related indexes. By analyzing damaged areas in the vicinity of DMZ, major damaged types were identified as six classes: landform modification, surface loss, soil pollution, soil physio-chemical modification, vegetation decline and vegetation damaged. From literature review, 39 indexes were selected and were grouped into four divisions: soil property, vegetation growth & structure, habitat property and landscape structure & functions. By conducting a survey with the selected indexes targeting relevant experts, data on relative importance among the divisions and indexes by damaged type were collected. As a result, it was found that the orders and values of weighted values of the divisions were different by damaged type: for example, soil property (0.402), vegetation growth & structure (0.209), habitat property (0.225), landscape structure & function (0.163) for "landform modification"; but soil property (0.171), vegetation growth & structure (0.401), habitat property (0.270), landscape structure & function (0.158) for "vegetation decline". Similarly, evaluation indexes showed different orders and values of relative importance, easiness in field measurement and representativeness for the division by damaged type, and the values were used for calculating importance factor for each index. In the evaluation table, score1 and score2 were made by the importance factors of indexes multiplied by distribution values which present grades and by the weighted values of divisions. In conclusion, while dealing with the damaged type was considered significant for evaluating and managing restorations, further tests on this table with a range of cases were needed to improve its quality.