• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2010년도 추계 학술발표회
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• pp.782-789
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• 2010

Landslides cause enormous economic losses and casualties. Korea has mountainous regions and heavy slopes in most parts of the land and has consistently built new roads and large-scale housing complexes according to its industrial and urban growth. As a result, the damage from landslides becomes greater every year. In this study, performed a GIS-based landslide hazard analysis by SINMAP(Stability Index MAPping) model in Gyeonggi Icheon area coupling with geomorphological and geological data. SINMAP model has its theoretical basis in the infinite plane slope stability model with wetness obtained from a topographically based steady state model of hydrology. To Gyeonggi Icheon area landslides hazards evaluated, these SINMAP model were analysed results while simultaneously referring to the stability index map, where lines distinguish the zones categorized into the different stability classes and a table giving summary statistics.

• 한국환경과학회지
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• 제4권2호
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• pp.159-168
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• 1995

To predict reasonably the movement and the concentration of the pollutants in the coastal area. A simulation model should be prepared considering detail topography with land-sea and the urban effects, and the resolution near the source. The explicit method can not be applied due to the instability of the numerical calculation in high horizontal-grid resolution, while the ADI scheme satisfied with the high horizontal grid resolution and can be used in the fine mesh system which shows the detail topography, atmospheric flow The ADI method which studied the high horizontal grid resolution was excellent. The two dimensional model used in the study using ADI method is proved as a reasonable model to predict the wind field in any small scale area including mountainous coastal urban area.

• 한국농공학회지
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• 제40권6호
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• pp.37-45
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• 1998

A survey was conducted to get information on the utilization of irrigation systems for greenhoyses farming. Three regions were selected which represent geographical chatacteristics such as neighboring urban area, flat-field area, and mountainous area. The number of greenhouses farms interviewed was 432 in total. The contents of the survey consisted of general characteristics of greenhouse farmers, the size and location of greenhouses, cultuvated crops, irrigation method, irrigation scheduling, and irrigation automation. The analysis of the surveyed data showed that greenhouse farmers did not take technical assistances. Proper criteria or guidelines for selection and operation of irrigation systems were not available. Irrigation systems were operated by hand. Irrigation scheduling were executed by farmer's experience. Maintenance of irrigation systems in general were poor. Development of economically reasonable irrigation system is of importance.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 하계학술대회 논문집 A
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• pp.290-292
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• 2003

The intake tower of D-dam located in a mountainous area positioned in the left side of the dam and its structure installed alone on the water surface then, can become target of direct lightening. To protect the intake tower from the direct lightening and indirect-lightening, lightening rod installed in the top area of the intake tower and ground pole laid under the surrounding ground. however, because the surrounding ground almost consists of a rock, it is very difficult to obtain the grounding resistance. It is main object to examine the construction plan of the optimum lightening rod equipment and ground pole with measuring the earth specific resistance of the around of the intake tower which is the scheduled area to lay the ground pole with the Wenner's 4-electric pole method and the Schlumberger's method. and using the analysis tool, ESII.

• 농촌계획
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• 제4권2호
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• pp.96-102
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• 1998

A field survey with interview was conducted to get information on the irrigation water usage for greenhouse farming. Three study regions were selected which represent geographical characteristics such as ,neighboring urban area, flat-field area, and mountainous area. Several items were investigated and analysed such as location of greenhouse, type of irrigation water resources, type of irrigation method used, way to decide intake facility size, farmers'satisfaction on intake facilities performance and water quality, and needs for water quality test. It was found that greenhouse farmers did not take an advantage of technical assistances. Proper criteria or guidelines for selection and operation of water intake facilities were not available.

• 한국측량학회지
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• 제1권2호
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• pp.30-41
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• 1983

본 연구는 삼각수준측량의 연직각 관측에 있어서 필수적으로 수반되는 굴절계수 (K)값을 실험적으로 구함으로써 앞으로 정도 높은 정밀수준측량을 수행하는데 목적을 두고 있다. 이에 본 연구에서는 특히 호남지방에 있어서 무등산을 중심으로 한 산지부. 광주지역의 평지부. 목포 및 여수지역의 해안부등의 각 지역에 따라서 굴절계수(K)값을 계절별(월별) 및 시간별 변화과정과 그 특성을 제시하였다.

• 대한원격탐사학회지
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• 제8권1호
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• pp.15-26
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• 1992

This paper describes an implementation of adaptive stereo matching for DBM generation. The matching method of two stereo satellite images to find corresponding points used in this paper is area-based matching, which is usually used in the field of making DBM. Same window size and search area used as in the conventional matching methods and we propose adaptive stereo matching algorithm in this paper. We cluster three areas which are consist of mountainous areas, cultivated areas and cities, and rivers and lakes by using proposed linear feature extracting method. These classified areas are matched by adaptive window size and search area, but rivers and lakes is excluded in this experiment. The matching time is three times faster than conventional methods.

• Journal of Ecology and Environment
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• 제33권3호
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• pp.229-236
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• 2010

We conducted field surveys of amphibians and reptiles over a two-year period in 16 lagoons along the eastern coastline of South Korea, and determined the habitat characteristics correlated with the number of amphibian and reptilian species and individuals. We documented 11 amphibian species and 8 reptilian species. The dominant amphibian species was the black-spotted pond frog (Rana nigromaculata), and the dominant reptilian species was the red-eared turtle (Trachemys scripta elegans), an invasive species. Among the 14 habitat characteristics, connectivity to mountainous area significantly affected the number of amphibian and reptilian individuals. Other factors, including emerged plant cover, salinity, pH, the number of birds for amphibians and connectivity to agricultural land, lagoon perimeter length for reptiles also influenced the number of species or individuals of them. Our results demonstrate that these lagoons are home to more amphibians and reptiles than has been previously known. To effectively conserve herpetofauna in the lagoon ecosystem, lagoons as well as surrounding wetlands, grasslands, and mountainous areas should be protected.

• 한국환경과학회지
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• 제14권12호
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• pp.1171-1176
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• 2005

This study was conducted to identify the runoff characteristics of non-point source according to rainfall in Dalseo and Daemyung watershed. Land-uses of the Dalseo and Daemyung watershed were surveyed to urban $72.1\%$ and mountainous $6.7\%$, and urban $49.3\%$ and mountainous $20.5\%$, respectively Mean runoff coefficients in each area were estimated to Dalseo watershed 0.49 and Daemyung watershed 0.16. In the relationship between the rainfall and peak-flow correlation coefficients(r) were determined to Dalseo watershed 0.9060 and Daemyung watershed 0.5620. In the relationship between the antecedent dry period and flrst flow runoff correlation coefficients(r) were determined to Dalseo watershed 0.7217 and Daemyung watershed 0.2464. In the relationship between the rainfall and watershed loading, exponent values of SS in Dalseo and Daemyung watershed were estimated to 0.54 and 0.496, respectively.

• 농촌계획
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• 제15권3호
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• pp.107-112
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• 2009

In Japan, the direct payment scheme for mountainous areas was introduced in order to enhance multifunctionality of less-favored areas in 2000. A comprehensive ex post assessment showed that the scheme effectively contributed to prevention of abandoned cultivated lands, maintenance and enhancement of multifunctionality of agriculture, continuous assistance for agricultural production, and revitalization of community. In 2005 a second round of the scheme started and urged encouraging core farmers, improving productivity, and reinforcing inter-village coalition as to promote autonomous and sustainable rural economies. A new different scheme such as 'measures to conserve and improve land, water and environment' was launched for strengthening conservation and management of rural resources over all areas in 2007. It covers one third of paddy fields with regards to maintenance of water facilities and practice of group eco-farming beyond less-favored area. A lot of public programs have been developed for rural revitalization recently. Additionally some have a complementary role to enlarging cultural multifunctionality in rural societies. We could interpret the institutional progress as an evolutionary path of rural development and environmental schemes for the past decade. Much experience of community works through the direct payment scheme for mountainous areas may have resulted in accumulation of social competence for elaboration of rural management..