• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.80-80
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• 2022

본 연구는 한강유역 (35,770 km²)을 대상으로 RUSLE (Revised Universal Soil Loss Equation)과 WATEM/SEDEM (The Water and Tillage Erosion Model and Sediment Delivery Model)의 유사이동식을 활용하여 인간활동과 기후변화로 인한 유사량을 평가하였다. 대상유역에 영향을 주는 16곳의 기상관측소에서 제공하는 분 단위 누적강수량 (2000-2019), 농촌진흥청 토양도, 국토지리정보원 DEM (Digital Elevation Model), 환경공간정보서비스 (EGIS) 2020년 세분류 토지이용도를 활용하여 RUSLE과 WATEM/SEDEM 유사이동식에 필요한 강우침식인자(R), 토양침식인자 (K), 지형인자 (L·S), 식생피복인자 (C), 그리고 보전관리인자 (P)를 구축하였으며, SWAT (Soil and Water Assessment Tool)으로 모의한 표준유역 단위 연도별(2000-2019) 유사량 결과를 기준으로 WATEM/SEDEM 유사량 계수 (KTC)를 검·보정하였다. 토양침식 산정 입력자료 중 강우량으로 산정하는 강우침식인자는 기후변화를 보여주는 인자, 토지피복에 따라 다른 식생피복인자와 보전관리인자는 인간활동을 나타내는 인자로 설정하였다. 강우침식인자는 2010년대 평균값을 활용하여 현재의 유사량을 평가하였으며, 분 단위 자료가 없는 과거의 경우 직접적인 계산에 어려움이 있어, 연평균 강수량과의 관계로 추정한 1980년대 평균값을 활용하여 기후변화로 인한 영향을 평가하였다. 식생피복인자와 보전관리인자는 1980년대 토지이용도를 활용하여 산정한 결과로 인간활동에 의한 유사량 평가에 사용되었다. 대상유역의 유사량은 RUSLE 모형의 토양침식량과 WATEM/SEDEM 유사이동량을 mass balance로 분석하며, 다른 인자들은 고정한 상태로 과거 강우침식인자, 식생피복인자와 보전관리인자를 적용하여 인간활동과 기후변화로 인한 유사량 변화를 분석하고자 한다.

• Korean Journal of Soil Science and Fertilizer
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• v.42
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• pp.28-52
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• 2009

• Korean Journal of Environmental Agriculture
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• v.24 no.1
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• pp.29-33
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• 2005

To develop proper soil management practices for reducing soil erosion, experiments were carried out by using lysimeters in Pyeongchang highland, Korea. Lysimeters installed at Hoenggye bad 13% slope, 15 m slope length and 3 m width. Lysimeters with 23% slope, 15 m slope length and 3 m width were also installed at Yongsan. Soil textures in Hoenggye and Yongsan lysimeter plots were silty clay loam and sandy loam, respectively. In the lysimeters potato was cultivated, and slant furrow culture and contour culture were applied. Up-down furrow and continuous fallow lysimeter was included in the experiments as a control plot. For the slant furrow and contour culture methods, minimum furrow mulching and gravel barrier were placed at each end of the furrows in the lysimeters from April to October in 2000 and 2001 to prevent soil and nutrient losses. In Heonggye, in two years experiments, average soil loss of 17 Mg/ha was found in the up-down and continuous fallow lysimeter and 2.6 Mg/ha from furrow minimum straw and slant furrow treatment, and 1.8 Mg/ha from slant furrow and gravel bag treatment. In the contour culture, the soil losses were further reduced. In Yongsan, soil loss in the slant furrow culture without any protection treatment was 167 Mg/ha, and the soil loss was reduce to 61 and 86 Mg/ha with minimum straw and gravel bag treatments, respectively. The soil loss could be reduced more than 45% by furrow minimum straw and gravel barrier. The furrow minimum straw or gravel bag barrier successfully reduced soil loss in clay loam soil in Heonggye, but still the treatments were not enough to reduce soil loss in saprolite piled sandy loam soil in Yongsan.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 1995.12a
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• pp.22-32
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• 1995

The purpose of this study is to estimate not only the watershed soil loss but also its temporal changes of Kyungan River basin, the study area, due to the land development. To analyze the soil loss of the river basin, USLE was employed. GIS and remote sensing were also utilized to estimate the soil loss. The data for this analysis consist of a series of thematic map and remotely sensed data. The remotely sensed images for this study are Landsat TM(Oct, 28, 1997 & Sep. 22, 1992), In Kyungan River basin, not only the detection of temporal changes of land use and GVI, but also the estimation of soil loss provided very significant factors that affect to the watershed environment quality. The management of the factors of vegetative cover, slope steepness and length were the keys to reduce soil loss and solve conservation and protection issues of Kyungan River basin. GIS application with USLE to the watershed analysis allows the planner to recognize sensitive sites and to plan strategies to minimize soil loss.

• Bulletin of Korea Environmental Preservation Association
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• v.26 no.5_6
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• pp.59-61
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• 2004

Landfarming and a microbial agent were used to treat dilsel-contaminated soil. The microbial agent was applied to the contaminated soil in a concentration of 5$\times$102 cfu/soil(g) and the total amount of microbial agent, 210 l , was sprinkled on the soil four times for 24 days during 50 day-remediation period. The remediation goal, lower than 800mg/kg of TPH, was achieved from 5,707mg/kg of TPH within 50 days. The total number and activity of indigenous microorganisms were increased by 100 times after the microbial agent, Bioil-D, was applied to the contaminated soil.

• Journal of Bio-Environment Control
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• v.17 no.1
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• pp.1-8
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• 2008

Four cover plants such as Phlox subulata, Glechoma hederacea var. longituba, Sedum middendorffianum and Saxifraga laciniata were evaluated to investigate the effect of companion planting on reducing soil erosion in Chinese cabbage cultivated highland. The experiment was conducted using lysimeters of $5\;m{\times}2\;m$ (length$\times$width) with 5, 15 and 30% slopes. Companion plants except Sedum middendorffianum did not interface with growth of Chinese cabbage Glechoma hederacea var. longituba and Sedum middendorffianum grew faster than Phlox subulata and Saxifraga laciniata in the early growth stage suer transplanting, resulting in fast ground covering, but the ground covering by Phlox subulata and Saxifraga laciniata was delayed because growth suppression by high air temperature during summer season. Soil erosion became severe as increasing degree of slope. Assessments of the four cover plants were conducted in relation to soil conservation characteristic of scenery, endurance to the environment stress, plant growth and weed suppression. From the assessments, Phlox subulata was superior to other intercropping crops tested for reducing soil erosion in highland cultivation of Chinese cabbage.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 1997.05a
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• pp.101-104
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• 1997

본 연구에서는 네덜란드에서 시행하고 있는 토양환경정책을 정리하고, 국내의 적용성에 대해서 검토해 보았다. 네덜란드의 토양환경관리의 목표점은 토양의 다기능성을 유지시키고자 한 것으로서 다기능성의 회복에 토양정화의 주목적이 있다. 네덜란드의 토양법체계는 토양보호법을 기점으로 주변에 환경관리법, 건축법등을 통해 토양환경의 보전을 하고 있으며, 공장지대나 주유소는 토양보호법의 테두리안에서 별도의 명령을 통해 관리되고 있다. 아울러 정화의 책임을 명확히 하였으며, 정화의 책임순서로는 오염원인자, 소유자, 권리행사자 순으로 되어 있으며. 정화는 오염자 스스로 정화를 하도록 유도하고 그렇지 않을 경우에는 정부가 돈을 투자하여 정화를 행하고 있다. 아울러 건축물을 짓고자 할 경우에는 토양에 관한 조사를 하도록 하고 있으며, 토지를 사고 파는 과정에서는 반드시 토양의 질에 관한 정보를 확인하도록 행하고 있다.

• Environmental and Resource Economics Review
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• v.5 no.1
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• pp.137-164
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• 1995

산림은 목재와 산채의 생산과 같은 물질생산의 기능이 있는 동시에 탄소를 고정하고 산소를 배출하는 광합성작용을 통하여 대기를 정화하며 지표토양의 침식을 방지한다. 또한 산림은 여러가지 동식물의 서식처로서 생물다양성을 보존하는 데 대단히 중요한 역할을 하는 동시에 도시민에게 휴식처를 제공하기도 한다. 이러한 산림의 다양한 기능 가운데 그 가치가 공식적으로 인정이 되고 있는 것은 목재나 약재와 같이 시장에서 유통되는 임산물의 생산기능에 제한되고 있어 산림자원의 효율적인 이용과 관리를 어렵게 하고 있다. 이러한 문제를 해결하기 위하여서는 산림이 지니고 있는 환경보전기능에 대한 평가가 이루어져야 한다. 이 논문에서는 최근 서구 제국에서 진행되고 있는 산림의 환경보전적 가치의 평가에 관한 연구 추이를 살펴보고 이러한 산림의 환경보전적기능의 평가를 뒷받침할 수 있는 이론적 체계를 정립하고자 하였다. 환경자원평가 방법을 산림의 환경보전가치 평가에 적용할 수 있는가를 검토하였으며, 적용장의 문제점을 살펴보았다. 산림의 환경보전적 가치를 평가하고자 할 경우에는 대부분의 경우에 있어서 생산함수법을 우선적으로 사용하고, 이 방법의 적용이 불가능할 경우 가계생산함수법과 실험시장법은 보완적으로 사용하는 것이 바람직하다고 생각된다.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 1997.11a
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• pp.145-159
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• 1997

Cheju Island is the most attractive resort area in Korea for its exotic landscape, natural beauty, and traditional culture which is quite different from that of the mainland. Until now, most of the recreational facilities and accomodations have been constructed along the coastal areas. Recently, mid-mountain area has been under very heavy development pressure because it is suitable for new sites for tourism facilities and the land price in the coastal area is very high. The mid-mountain area is the land located 200-600m above the sea level. It is a major source of water supply for the island and has exotic scenic beauty, which cannot be found in mainland but it is the area very vulnerable to water pollution Therefore, it is very important to manage this area based on the concept of environmentally sound and sustainable development in order to meet ever increasing demand for the land development The purposes of this project are: 1) to establish Geographic Information System for the whole island, 2)to formulate environmentally sound landuse plat However, There has been accuracy of the original map, defining criteria of analysis, updating of the data were identified for future tasks to be studied.

• KCID journal
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• v.9 no.1
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• pp.25-28
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• 2002