• The Korean Journal of Ecology
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• v.24 no.1
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• pp.27-34
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• 2001

We described the vegetation of a disturbed lagoon wetland in relation to water and soil environments in Kungae lagoon reclaimed 30 years ago. Water depth and soil organic matter showed a great spatial heterogeneity in Kungae wetland which was changed into a freshwater marsh by the dike construction. Detrended canonical correspondence analysis suggested that differences in vegetation structure were primarily the result of variation in water depth or microtopography and soil organic matter Various emergent vegetations were developed in the wetland: species such as Phragmites australis, Calamagrostis epigeios, Carex dispalata and Lythrum anceps in a wide area, hydrophyes such as Typha angustifolia and Scirpus tabernaemontani at the low elevation with deep water, ruderals such as Bidens frondosa and Persicaria perfoliata near upland with much soil organic matter and sand-dune vegetation such as Carex kobomugi, Diodia tens, Pinus thunbergii and Potentilla egedei var. groenlandica at the high elevation. These results suggest that development of a prototype for wetland restoration from vegetation analysis of other natural lagoons and restoration of natural water tables and hydrologic connections between the diked wetland and the sea are important in the disturbed Kungae wetland.

• Korean Journal of Environment and Ecology
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• v.7 no.1
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• pp.49-57
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• 1993

This study was executed to investgate the impacts of vegetation and soil characteristics on the user's impact in Children's Park and Kumkang Park, Pusan. In survey sites, twenty plots of 100$m^2$ size were set up. The degree of soil hardness was showed above 90kg/$\textrm{cm}^2$ in using area, which was prevented to the plants growth. The user's control was effective to the soil surface softening, while that effects of the other soil characteristics were not cleared. In the analysis of Plant community structure, especially, shrub vegetation was severely damaged. And the user's impact was due to the lowering of species and maximum species diversity. The recreation area protection of the two years was positively operated to the natural vegetation restoration and species diversity enhancement.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2008.11a
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• pp.557-558
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• 2008

본 연구는 괴산군을 대상으로 잠재식생군락과 군락별 식생기반을 평가하였다. 군락은 8개로 분류되었으며, 토양경도는 7.5mm$\sim$24.3mm, pH는 5.11$\sim$6.68, EC는 3.24dS/m$\sim$7.13 dS/m, 공극률은 16.90%$\sim$56.57%, 칼륨은 0.58cmol/kg$\sim$8.20cmol/kg, 칼슘은 0.12cmol/kg$\sim$1.21cmol/kg, 마그네슘은 0.05cmol/kg$\sim$1.07cmol/kg의 범위로 나타났다. 이러한 자연식생의 토양환경 데이터는 향후 중부지방 조경식재시 식생기반 조성에 기초자료로 활용될 수 있을 것이다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.11
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• pp.5956-5963
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• 2013

By the activation of environment-friendly river works, application of vegetation mats is increasing, however, evaluation techniques for hydraulic stability of vegetation mats are not presented. This study is conducted to develop the objective test method for vegetation mats. Two kind of vegetation mats are tested by the real scale experiments, and hydraulic quantities are measured and analyzed to evaluate acting shear stresses. To evaluate soil loss, Terrestrial 3D LiDAR measurement is conducted and soil loss index are calculated from changes of bed elevation. Quantified evaluation for permissible shear stresses is conducted by graphical method for acting shear stresses and soil loss index. By the results of precision survey, changes of sub soil are limited to local range in stable cases and relatively large changes of sub soil which is similar to natural river bed are detected in unstable cases. From the study, evaluation of permissible shear stresses by ASTM D 6040 is avaliable in the failure mechanism and failure criteria by soil loss index.

• Journal of Korean Society of Forest Science
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• v.87 no.3
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• pp.383-390
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• 1998

The purpose of this study was to evaluate the effect of new materials with forest topsoil for hydroseeding measures that is environmentally and ecologically stable revegetation measures on rock cut-slopes. Field hydroseeding experiment was used with a completely randomized design at highway rock cut-slopes in April, 1997. Results obtained in this study were summarized as follows: Particle size distribution of 3 mixed-soil materials that consisted of forest topsoil, decomposed granite soil, compost, sludge, and bottom ash did not show a significant difference. As appending the amount of forest topsoil, soil bulk density was increased. Soil hardness was slightly increased in early period, and then decreased with the flourishing of plants. The number of individuals increased, more than $3,000seedlings/m^2$, after 1 month, and it was decreased as time passes because of competition between the seeded species and the naturally emerged species. In addition to the seeded species, seeding plot has more than 6 species (Rubus crataegifolius, Eleusine indica, Erigeron canadensis, Lycopersicon esculentum var. cerasiforme, etc.) per $m^2$ were naturally appeared in the first year. From the viewpoint of species diversity promotion, the capability of using forest topsoil as seed bank sources was high. In order to apply in the field, the investigation and analysis of topsoil availability (quantity and quality of seed source, soil texture and organic composition) should be carried out before-hand.

• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.674-677
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• 2006

토양수분은 토양입자나 공극에 포함되어 있는 물을 의미하는 것으로서 여러 수문현상을 연계하는 주요변수이며, 올바른 물순환 체계를 이해하기 위해서는 토양수분에 대한 활발한 관측과 연구가 수반되어야 한다. 하지만, 우리나라의 토양수분 자료는 지상관측 자료로서 관측기간이 짧고 결측치가 많아 장기 추세나 공간변화도를 분석하기엔 미흡할 뿐만 아니라 2차원 토양수분 자료는 보유하고 있지 않은 실정이다. 따라서, 본 연구에서는 이를 보완하기 위해 우리나라와 위도가 비슷한 지역인 미국 Illinois 지역의 토양수분자료와 정규식생지수의 상관관계를 이용하여 우리나라의 2차원 토양수분을 산출하였으며, 산출된 장기 토양수분 자료를 이용한 시 공간 변화도 분석을 수행하였다.

• Journal of the Speleological Society of Korea
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• v.3 no.3
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• pp.41-44
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• 1978

1977년 7월 25∼31일까지 겨우 1주일간의 짧은 기간이었지만, 한국 제주도의 용암동굴 및 암석, 토양, 식생 등의 조사를 할 수 있었던 것은 오로지 한국의 건국대학 공교수를 비롯하여, 같이 참여해 주신 여러 선생님들과 아울러 제주도청의 지사, 부지사, 그밖의 관계제위 및 제주자연보호회 여러분의 협력과 원조의 덕분이라고 충심으로부터 감사드리는 바입니다.(중략)

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.270-270
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• 2019

미생물의 부산물인 바이오 폴리머와 혼합된 토양의 수리안정성이 증가하는 효과를 시험하기 위하여 안동 하천실증연구센터 실규모 수로에 물관리연구사업의 "친환경 신소재를 이용한 고강도 제방 기술 개발" 연구과제에서 개발 중인 바이오 폴리머와 혼합된 토양을 도포하여 시험구를 만들고 수리안정성에 관한 실험을 수행하였다. 실험에서는 바이오 폴리머와 마사토를 혼합하여 사용하였으며, 바이오 폴리머와 혼합된 토양은 도포 두께, 식생 유무 등에 따라 구분하였다. 실험은 물의 소류력과 토양손실과의 관계를 통하여 수리안정성을 평가하는 ASTM 시험법을 준용하여 진행하였고, 실험 결과를 통하여 새로 개발된 바이오 폴리머가 토양의 수리안정성을 증가 시키는 것을 확인 할 수 있었다. 특히 바이오 폴리머가 도포된 토양에 식생이 활착되었을 경우 강한 소류력이 발생하는 흐름에서도 토양 손실이 매우 적게 발생하였으며, 이를 통하여 개발된 바이오 폴리머의 성능을 일부 확인 할 수 있었다.

• Korean Journal of Environmental Agriculture
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• v.22 no.2
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• pp.79-86
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• 2003

This research was conducted to present reference data to be used as newly reclaimed tidal land management. We investigated vegetation succession at 4 reclaimed/reclaiming project areas and discussed relationship with soil and vegetation trhrough investigation and analysis soil chemical characteristics at 2 areas. 14 families 58 kinds were investigated. Vegetation were variou at Dea-Ho conservation polt and Seok-Mun National Industrial Area which are maintaining naturally. Vegetation were simple at Hong-Bo and Dongjin and MinKyong river areas which effected sea water. Common species that were investigated at 9 sites were Suaeda asparagoides, Aster tripolium, Phragmites australis, Suaeda maritima, Suaeda japonica, Carex scabrifolis. As soil desalinization progressing, soil classified at first saline-soidc soil, the nest saline soil and then normal soil. Chenopodiaceae revealed at about 30 dS/m of soil ECe and existed to 10 dS/m of soil ECe. At about 20 dS/m of soil ECe. Aster tripolium, Calamagrostis epigeios, and Sonchus brachyotus revealed and then non-halophytes and common plants at inland revealed at low soil ECe of about 10 dS/m. However it was not to progress vegetation sucdession and soil desalinization at the same time, owing to input of seeds or plants ect from out-ecosystem. So for promotion of vegetation at newly reclaimed tidal land, we proposed that it was very effective to plant artificially halophytes or suitable species through soil test.

• Proceedings of the KGS Conference
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• 2003.05a
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• pp.71-74
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• 2003

식생은 기후, 지형, 토양 등의 자연 환경에 의하여 영향을 받는다 그 중 기후 환경은 지역마다 다양한 식생의 분포를 야기 시킨다. 우리나라의 기후와 식생과의 관계는 Uyeki(1933)에 의해 비교적 광범위하게 다뤄졌으며, 우리나라의 위도 차이나 고도 차이에 의한 식생 구분은 기온에 의해 가장 영향을 받는 것이라고 연구되었다(Yim, 1977 a, b). (중략)