장병욱 Jang Byeong Ug , 우철웅 U Cheol Ung , 김성필 Kim Seong Pil

DOI: Vol.9(No.2) 1-6, 2003

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This study was perfromed to investigate the degree of pollution of sediments of stream and reservoir in rural area. A series of field investigations were carried out for Kyongki-do area and chemical analysis were performed for sediment samples. It was found that some samples were heavily pollutied with phenol and TPH and gave off a malodor. Soil Pollution Scores(SPSs) was determined for sediment samples. Some samples were classified to Soil Pollution Class (SPC) 2 and 3. For recycling and disposal of dredged sediments from stream and reservoirs, these polluted sediments should be carefully considered. In the environmental improvement operations of rural area, the degree of pollution of sediments of stream and reservoir are carefully investigated and suitable counterplan must be established.

강방훈 Kang Bang Hun , 조순재 Jo Sun Jae , 김상범 Kim Sang Beom , 김혜민 Kim Hye Min

DOI: Vol.9(No.2) 7-11, 2003

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This study was conducted to evaluate the application possibility of environment-friendly rural toilet developed by NRLSI (National Rural Living Science Institute). The evaluation tests of rural toiled consist of composting efficiency, component analysis of odor, and economic efficiency. The test showed that the remaining quantity of wastes was only 14.7% during 10months. The ammonium gas, main component of ill oder, was not measured, and the other components of oder were significantly detected less than those in pit toilet. The saved PVC (Present Value Cost) of the toilet management cost for thirty years is about 2,457,000 wons compared with flushing toilet supported by a single sanitation facility.

이관희 Lee Gwan Hui , 박종웅 Park Jong Ung , 권수광 Kwon Su Gwang , 김영표 Kim Yeong Pyo

DOI: Vol.9(No.2) 13-17, 2003

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A purpose of this study is to develop practical indexes for improving a village environment in Kyongbuk, Korea. From a questionnaire survey of the public employees (71 persons) who take charge of the environment in Kyongbuk province, the indexes were produced and the contents of questionnaire consisted of preferential and supplementary indexes to apply. The preferential indexes which apply to an agricultural village and a stock village are environmental sanitation facilities, a hygienic cheek of livestock, and a purge of livestock shed`s surroundings. In case mountainous village, and natural-ecological village the preferential indexes are habitat reservation for wildlife, poaching prohibition (monitoring for it), and food supplement for livestock. To the traditional-cultural village, prevention of pollution, environmental sanitation facilities, and a monitoring for water quality change are the prior indexes in order. For the village near city and the industrial village the preferential indexes are patrol removing of garbage, pollution index planting and monitoring for noise pollution. For a fishing village and a village fronting waterside excess uses of agricultural chemicals, monitoring for a water quality change, and realignment of green house with viny1 and warehouse. In conclusion the research presents the practical and preferential index for residents to improve their environment in accordance with village settings and suggests guidelines for further research.

손재권 Son Jae Gwon , 박종민 Park Jong Min , 최진규 Choe Jin Gyu , 송재도 Song Jae Do

DOI: Vol.9(No.2) 19-28, 2003

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It is the purpose of this study to investigate the change of stream water quality in upper stream of Dongjin river, and to give the basic information for the conservation of water quality. Water samples were taken periodically at 9 sampling sited during 8 months from March to October in 2002. 1. The water temperature and pH stream water were ranged 9.0~29.4℃, 6.48~9.33, respectively. The COD values of stream water was ranged from 0.60 to 19.06. The contents of T-N and T-P mainly affected by the livestock wastes, and agricultural activity were 1.88~6.74 mg/L, ND(not detcted)~0.50 mg/L, respectively. 2. The SS, DO and BOD values of stream water were ranged 0.4mg/L~274.0mg/L, 0.5~6.0 mg/L, and 7.3~13.7mg/L respectively. 3. The cation is one of the important components in analysis of stream water qauality. The contents of analysis, Ca^(++), Mg^(++),Na^(++), and K^(+) were ranged 1.96~11.08mg/L, 1.21~6.16 mg/L, 3.38~18.44 mg/L, 1.12~7.96 mg/L, respectively. SAR was ranged 0.31~1.63 below 2.0. The contents of cation showed in the order Na ^(++), >Ca^(++), >K^(+) > Mg^(+). 4. The contents of heavy metal Zn, Cu, and Pb were ND~0.071 mg/L, ND~0.012 mg/L, and ND~0.043 mg/L, respectively. Cd was not detected in all samples. 5. As a result of these researches showed water quality in upper stream watershed of Dongjin river more affected by livestock wastes and living sewage than agricultural activity.

장민원 Jang Min Won , 정하우 Jeong Ha U , 박기욱 Park Gi Ug

DOI: Vol.9(No.2) 29-37, 2003

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The objectives of this study are to develop an agricultural drought evaluation model based administrative boundaries and to assist the effective drought-related decision-making of local governments. The model which was named ADEM(Administrative Drought Evaluation Model for Paddies) is designed to simulate daily water balance between available water quantities from various agricultural water facilitied such as agricultural drought severity, two indices were defined; One is ADFP (Agricultural Drought Frequency for Paddies) which is calculated with a frequency analysis of monthly water deficit, and the other is ADIP(Agricultural Drought Index for Paddies) with a scale of -4.2~+4.2. The developed model was applied to Yeoju district and showed good correspondence with the historical records of drought.

최수명 Choe Su Myeong , 이행욱 Lee Haeng Ug , 김홍균 Kim Hong Gyun

DOI: Vol.9(No.2) 39-47, 2003

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This study was carried out to find out the time-dependent change of central functions in the depopolated rural areas. Three county areas were selected for the case study ; Haenam(as a remote flat area), Goksung(as an intermediate mountainous area), and Hwasun(as a peri-urban area). For each district area administered by each county, service facilities stock was surveyed at both the present(`02) and the past(`89 of `94)time, and its functional index checked. From the study results, table-tennis rooms, oil shops and inns were ascertained to be disappeared now in the absolute of real terms, while beer halls, restaruants and bakeries to be sharply increased. Generally, in spite of the substantial depopulation in the past decade, service facilities stock has been increased in and concentrated to the highest order of rural area (county office seated district). However, where this center leans to the outer side of its county area and to the opposite direction against the regional center, the dependent level of service function on the highest center have decreased.

김대식 Kim Dae Sig

DOI: Vol.9(No.2) 49-55, 2003

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The purpose of this study is to analyze the impact of land-use population change in rural area by new expressway. Chungbu expressway constructed in 1987, going through the south area of Kyunggi province from Seoul, was selected as a case expressway, and also 2 cities and 18 subdivisions of county in its surrounding area, as a case study area. To analyze the change characteristics before and after the construction, land-use maps of 1986 were collected, including the census data for the years in cities and counties yearbooks. Remote sensing technology was applied to classify the land-use maps with six types of land use. Geographic information system was also for spatial analysis, such as the land-use and accessibility changes. A 5 km buffer zone from interchange of the expressway showed about two times increase of urbanized built-up area than a 5 km buffer zone from the expressway. Accessibility from Seoul and cities was improved in most areas, which is accessing to Seoul through existing Youngdong expressway. Ten rural areas showed increased population with accessibility of average 52 minutes to Seoul and 19 minutes to cities, while eight areas showed decreased population with average 73 minutes to Seoul and 3.5 minutes to cities. This shows that the threshold value, which is time distance to Seoul and cities for population increase of decrease, one and half hours, respectively. Urbanized area was increased in most areas, even in population decrease areas, so this imdicates that there are thinning rural areas, increasing urbanized area while decreasing population.