• 자원ㆍ환경경제연구
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• 제23권4호
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• pp.689-718
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• 2014

본 연구는 홍수피해가 관련 산업부문의 자본을 감소시킬 경우 국가경제에 미치는 파급효과를 완전예측형 동태CGE모형을 이용하여 2010년을 기준연도로 분석하였다. 여러 홍수피해 항목들 중에서 통계자료가 확보될 수 있는 농경지, 선박, 공공시설의 물적 피해 항목에 분석을 한정하였다. 홍수피해의 시나리오는 1991년~2010년 기간 홍수피해를 2010년 기준으로 불 변화하여 항목별 홍수피해의 평균과 최대로 각각 채택하였다. 분석 결과, 산업별 생산의 경우에는 자본스톡이 직접적으로 감소하는 수산업+운송업의 생산 감소율이 가장 크고 다음으로 농임 업의 생산감소율이 큰 것으로 나타났다. GDP는 충격 기준연도에 벤치마크 해 대비로는 0.001%~0.057% 그리고 초기 자본감소 대비로는 약 11% 감소하는 것으로 분석되었다. 동태적으로는 GDP는 말기로 가정된 2030년까지 서서히 감소하는 것으로 분석되어서 홍수피해가 자본을 감소시킬 경우 국가경제에 미치는 영향력은 오래 지속되는 것으로 나타났다.

• 한국환경농학회지
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• 제19권5호
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• pp.426-432
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• 2000

Field experiment was performed from August 1996 to December 1999 to examine the feasibility of constructed wetland system for sewage treatment in rural areas. A pilot system was installed in Konkuk University and the effluent of septic tank for school building was used as an influent to the wetland treatment basin. The system was composed of sand and reed, and operated continuously including winter time. Average removal rate of about 70% was observed for BOD, COD, and SS, about 50% for T-P, and about 25% for T-N. The reason for poor T-N removal might be due to high loading rate and short retention time. The system demonstrated satisfactory effluent concentration and stable performance in growing season. And it also worked adequately in wintertime even below $10^{\circ}C$ without freezing, and removal was still significant. The amount removed in BOD, COD, and SS was almost the same as in the growing season, and the amount removed in nutrients was about half of the one in growing season. Overall performance of the experimental system was compared with existing data base (NADB, 1994), and it was within the range of general system performance. As study period increased, removal rates for BOD, COD, SS, and T-P were consistently maintained and even enhanced, but removal rate for T-N decreased slightly. Wetland system was thought to be a feasible alternative for sewage treatment in rural area considering its low cost and low maintenance requirement. However, the effluent of the experimental wetland system often exceeded current effluent water quality standards, therefore, further treatment could be required if the effluent should be discharged to public waters. Wetland system of interest locates in rural area and is a part of rural ecosystem, therefore, ultimate disposal of reclaimed sewage for agricultural purpose or subsequent land treatment might be available and further research in this matter is recommended.

• 농업과학연구
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• 제47권1호
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• pp.59-66
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• 2020

Particulate matter (PM) is regarded as a major threat to public health and safety in urban areas. Despite a variety of efforts to systemically monitor the distribution of PM, the limited amount of sampling sites may not provide sufficient coverage over the areas where the monitoring stations are not located in close proximity. This study examined the capacity of using remotely sensed data to estimate the PM10 and PM2.5 concentrations in Seoul, South Korea. Multiple linear regression models were developed using the multispectral band data from the Moderate-resolution imaging spectro-radiometer equipped on Terra (MODIS) and Operational Land Imager equipped on Landsat 8 (Landsat 8) and meteorological parameters. Compared to MODIS-derived models (r² = 0.25 for PM10, r² = 0.30 for PM2.5), the Landsat 8-derived models showed improved model reliabilities (r² = 0.17 to 0.57 for PM10, r² = 0.47 to 0.71 for PM2.5). Landsat 8 model-derived PM concentration and ground-truth PM measurements were cross-validated to each other to examine the capability of the models for estimating the PM concentration. The modeled PM concentrations showed a stronger correlation to PM10 (r = 0.41 to 0.75) than to PM2.5 (r = 0.14 to 0.82). Overall, the results indicate that Landsat 8-derived models were more suitable in estimating the PM concentrations. Despite the day-to-day fluctuation in the model reliability, several models showed strong correspondences of the modeled PM concentrations to the PM measurements.

• 농촌계획
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• 제22권2호
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• pp.67-75
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• 2016

This Research was carried out to investigate landscape characteristics of the traditional Chinese village through the landscape analysis. The Purpose of this study was to offer suggestions for improving Korea's traditional village scenery. This research was conducted by analysis about an important component of the landscape in Ping-shan traditional village. It was studied natural landscape, life landscapes, agricultural production landscapes and symbols landscape. This study was carried out through literature research, field research and interviews. The results of Chinese traditional village's landscape characteristic was First, Ping-shan traditional village was located on the basis of Feng-Shui settings. Second, Ping-shan traditional village was clan-based. Third, It is composed of a large green space on the outskirts of the village. Fourth, Ping-shan traditional village was a typical channel village. Fifth, Ping-shan traditional village was a living landscape with various features. sixth, Ping-shan traditional village was a lot of space to agricultural production, most of the arable land surround village. Suggestions for improving Korea's traditional village scenery are as follows ; First, proposes actively re-design on the base of defense fengshi landscape interpreted as a modern sense. Seconds, when large-scale farmland project is established in Korea, you can expect to gain knowledge from traditional Chinese village spacing. Thirds, It seems to require a study of the public space for festival. in the case of china, ancestral shrine space is center and space for festival. Fourth, It was important to seek knowledge about protection for frequent in flood plains in Korea's traditional village. Ping-shan traditional village was well-known for housing with contact water, connected channels and beautiful defense pond. Fifth, for improving Korea's traditional village scenery, we need to make various focus landscape features. Most of the visitors to Ping-shan traditional village was interested in the big and small beautiful landscapes and shelters.

• 한국농공학회논문집
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• 제63권1호
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• pp.61-73
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• 2021

Recently, the deterioration of water quality in Wonju stream has been reported due to the increase in diverse pollution sources along with community development and urbanization. Various types of attempts with a huge budget were made for better water quality so far, but its effectiveness is still doubted. In order to establish site-oriented measures for water quality improvement, the topographic and hydrologic factors were evaluated based on site inspection and survey. As the major streams merged into the Wonju stream, the Hwa and Heungyang streams were found to have higher pollution loads and contributions compared to other streams due to the scattered livestock farms and industries, and vulnerable land use. Notably, the discharge water from the Wonju Public Sewage Treatment Plant had the highest level of pollution load, impacting on the water quality of Wonju Stream. According to the SWAT model as water quality measures, the improvement effect of water quality in this treatment plant can be reached to the reductions in BOD 11.06%, T-N 23.56%, T-P 10.60% when the proper managements applied, whereas the improvement of water quality would be 3.89%, 1.23%, and 3.32% for BOD, T-N, T-P, respectively, for the industries. The reduction of the livestock industry was generally very high as a pollution source, but it was not much higher at the end of Wonju Stream than other measures. These results recommended that the water q uality improvement measures should be designated for each upper-middle-lower section in Wonju stream.

• 한국환경농학회지
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• 제40권1호
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• pp.60-66
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• 2021

BACKGROUND: The concern over heavy metal(loid)s in arable land and agricultural products increases for public health in recent years. This study aims to identify transition characteristics of heavy metal(loid)s and to assess dietary risk in barley grown at the major producing districts in Korea. METHODS AND RESULTS: The soil and barley samples were collected from 38 locations around the major producing districts at Jeollabuk-do in Korea for the propose of examining the concentrations of heavy metal(loid)s. The 34 barley samples were separately purchased on the market for the same survey. The average concentration and range of arsenic (As), cadmium (Cd) and lead (Pb) in barley grown at the major producing districts in Korea were 0.037 (0.016-0.094), 0.028 (0.004-0.083) and 0.137 (0.107-0.212) mg kg-1, respectively. Currently, the maximum allowable level for barley Pb is set at 0.2 mg kg-1 in Korea, and the monitoring results suggested that some samples exceeded the maximum allowable level and required appropriate farming management. Bio-concentration factor values by heavy metal(loid)s in barley were high at Cd, copper (Cu) and zinc (Zn), similar to other crops, while As and Pb were low, indicating low transferability. CONCLUSION: Human exposure to As, Cd and Pb through dietary intake of barley might not cause adverse health effects due to relatively low concentrations, although the Pb in some barley was detected higher than the maximum allowable level. Further study on uptake and accumulation mechanism of Pb by barley might be required to assess the human health risk associated with soil contamination.

• 한국산학기술학회논문지
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• 제18권2호
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• pp.501-513
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• 2017

본 연구는 도시농업의 이론, 패러다임, 유형을 통해 개발현황을 분석하고 공간형태에 관한 적용빈도와 개발 키워드를 도출하는데 그 목적을 둔다. 분석결과, 첫째, 거리(Distance)에 의한 도시공간은 자가생산방식, 공동생산방식 그리고 국가 사회운영방식을 통한 공간형태의 디멘존(Dimension)이 결정된다. 둘째, 형태(Shape)에 의한 단지공간은 광활한 토지를 활용하기 위한 플랫형(Flat), 협소하고 환경의 질이 열약한 공간을 극복하기 위한 컴팩트형(Compact) 그리고 플랫과 컴팩트 사이에서의 유기적인 활용울 위한 융합형(Fusion of Flat Compact)을 통해 공간형태의 아이덴티티(Identity)가 결정된다. 셋째, 위치(Location)에 의한 건축과 실내공간은 지상공간, 옥상공간, 벽면공간, 베란다, 실내공간, 실내인프라 공간을 통해 공간형태의 유틸리티(Utility)가 결정된다. 도시농업의 공간형태에 대한 개념들은 유기적인 연관성을 갖고 있으며 향후 진화를 통해 공간은 지속적으로 발전될 것이다. 도시농업의 공간형태는 다양한 융합과정을 통해 새로운 창조공간을 계속해서 만들어 나갈 것이며, 그것은 새로운 도시농업의 개발 트렌드가 될 것이다. 제도적 기준을 통해 계획된 도시농업은 최적의 생산환경과 도시경관 구축을 가능하게 할 것이며, 또한 국가별 문화와 환경적 특성에 따라 탄력적으로 변화하는 공간은 다양한 형태로 도시농업이 진화하는 발판이 될 수 있을 것이라 예측된다.

• 한국전통조경학회지
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• 제32권4호
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• pp.37-49
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• 2014

본 연구는 조선시대 읍치로부터 성장한 지방 소도읍의 하나인 고산을 대상으로 형태학적 개념과 연계하여 도시의 형성 발달과정에서 나타나는 형태구조와 도시평면 변화과정을 시계열적으로 분석해보고 시기별 형태특성을 도출해보고자 하는데 목적이 있다. 본 연구에서는 고산의 도시형태 분석을 위하여 콘젠과 카니지아가 설정한 도시형태 분석개념을 토대로 형태구조, 도시평면, 경로체계, 개발규정선, 전이지대, 중심지구, 평면단위, 형태시기, 브레이크 포인트, 자투리필지, 유휴지, 사유화 등의 개념을 도입하였다. 고산현시대에 골격이 형성된 고산의 도시형태 변천과정에는 도시형태 형성-구시가(kernel)의 형태구조 해체 재편-중심지구(epidome district)의 형성 발달-확장형 충진-중심지구 확장 재편으로 이어지는 순환적 사이클이 존재하고 있다. 공공사업은 고산의 형태구조와 도시평면의 변화를 주도하는 요인으로 작용하였다. 초기 단계 고산의 형태적 변화과정에는 간선경로로서 구시가(kernel)을 관통하며 개설된 신작로(고산로)와 이를 연결하는 계획로가 중요한 영향을 미치고 있다. 신작로 개설을 계기로 T(십(十))자형 골격도로체계를 바탕으로 구시가의 대부분을 점유하고 있던 관아시설구역의 평면단위가 소블록 단위의 개방형 평면단위로 전이되었다. 이와 더불어 신작로와 시장 경계도로를 따라 상가가 들어서면서 선형의 평면단위를 지니는 노선상가와 시장이 어우러진 근대적 중심지구를 형성하게 되었다.

• 생물환경조절학회지
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• 제29권1호
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• pp.89-95
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• 2020

2015년 현재 우리나라는 OECD 국가 중 질소기준 양분수지가 1위로 양분관리가 시급한 실정이다. 양분관리를 위해서는 축사에서 발생하는 가축분뇨의 자원화를 통하여 생산된 가축분뇨 퇴·액비를 농경지에 올바르게 살포하여 양분이 순환될 수 있는 구조를 만드는 것이 매우 중요하다. 이는 무기질 및 유기질 비료의 사용량을 줄일 수 있어 농경지에 대한 양분관리와도 연계되어 있다. 본 연구에서는 양분수지를 활용하여 연구대상지역에 대한 양분현황을 파악하였으며, 경제성과 효율성을 고려하여 조사료의 생산을 통한 가축분뇨 퇴·액비의 적절한 활용을 통하여 양분관리 효과를 검토하였다. 지역에서 발생하는 가축분뇨로 생산된 퇴·액비를 지역으로 다시 재순환할 수 있도록 하여, 가축분뇨 액비만으로도 충분한 양의 조사료 생산이 가능함을 보여주었으며, 농경지의 토양에서의 총 질소의 농도저감을 확인할 수 있었다. 질소농도의 감소는 작물의 사용량 뿐 아니라 토양에 축적되거나 지하수 및 지표수로 유출되는 것이 포함되어 수질개선의 효과를 예상할 수 있다.

• 농촌계획
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• 제21권2호
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• pp.11-21
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• 2015

This study carried out evaluation of vulnerability in accessability and functionality using road network that was extracted from Intelligent Transportation System(ITS) and digital map. It was built in order to figure out accessability that locational data which include community center, public facilities, medical facilities and highway IC. The method for grasping functionality are Digital Elevation Model(DEM) and land slide hazard map provided by Korea Forest Service. The evaluation criteria for figure out accessability was set to related comparison of average time in urban area. Functionality value was calculated by the possibility of backing the vehicle possibility of snowfall and landslides. At last, this research computed weighting value through Analytic Hierarchy Process (AHP), calculated a vulnerable score. As the result, the accessability of rural village came out that would spend more time by 1.4 to 3.2 times in comparison with urban area. Even though, vulnerability of the road by a snowfall was estimated that more than 50% satisfies the first class, however, it show up that the road were still vulnerable due snowing because over the 14% of the road being evaluated the fifth class. The functionality has been satisfied most of the road, however, It was vulnerable around Lake Daechung and Piban-ryung, Yumti-jae, Suriti-jae where on the way Boeun. Also, the fifth class road are about 35 km away from the city hall on distance, take an hour to an hour and a half. The fourth class road are about 25 km away from the city hall on distance, take 25 min to an hour. The other class of the road take in 30 min from the city hall or aren't affected of weather and have been analyzed that a density of road is high. In A result that compare between distribution and a housing density came out different the southern and the eastern area, so this result could be suggested quantitative data for possibility of development.