• The Korean Journal of Ecology
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• 제27권5호
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• pp.301-306
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• 2004

The sensitivity to Cd of three ectomycorrhizal fungi, Paxillus involutus, Suillus bovinus and Rhizopogon subcaerulescens, was assessed and compared in terms of radial growth and dry mass production, using both agar and liquid culture. The radial growth of S. bovinus and R. subcaerulescens was significantly reduced at the lowest concentration (0.1mg Cd/L). The 50% effective concentration (EC$_{50}$) values calculated from radial growth rates of the ectomycorrhizal fungi showed that the sensitivity of the fungi to Cd was greatest in S. bovinus and lowest in R. subcaerulescens. Cadmium addition also significantly decreased dry mass production of the ectomycorrhizal fungi. The sensitivity of the fungi to Cd in terms of dry mass production, was greatest in S. bovinus and lowest in P. involutus. Higher growth rates of P. involutus and melanisation of R. subcaerulescens appeared to contribute to reduced Cd toxicity.

• 한국지형학회지
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• 제27권2호
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• pp.81-97
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• 2020

Geopark refers to a single boundary area consisting of a collection of geosites and geotrails, which includes ecological, historical and cultural elements based on geological and geomorphological resources. To ensure the continued development and conservation of existing listed geoparks, it is necessary to carry out an environmental sensitivity analysis of the geopark components by utilizing spatial information from various scales. The objectives of this study are to analyze the environmental sensitivity in Cheongsong UNESCO global geopark in relation with slope disaster using GIS and to understand its spatial distribution in connection with geosites and geotrails. Two types of spatial database were constructed; geosites and geotrails in Cheongsong UNESCO global geopark and spatial data to perform environmental sensitivity. Potential soil loss and slope stability were analyzed to derive environmental sensitivity related to slope hazard. The results showed relatively high environmental sensitivity along the drainage network of Cheongsong UNESCO global geopark. Zonal statistics analysis was conducted for further detailed distribution of environmental sensitivity based on buffer zones of geosites and geotrails. Majority of geological sites, geological trails, Jeolgol gorge~Jusan Pond section in hiking trails, and Dalgi Mineral Spring Site~Artistic Genius Republic of Korea(Jangnankki gonghwaguk) section in road areas show relatively high slope hazard sensitivity within buffer zones.

• 문화기술의 융합
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• 제9권4호
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• pp.291-301
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• 2023

본 연구는 지속가능발전교육 지향 생태미술활동에 관한 유아교사 인식에 대하여 알아보고자 하였다. 연구결과는 다음과 같다. 첫째, 유아교사는 생태미술활동의 교육적 의의에 대해 자연매체의 시각예술, 공동체적 가치추구, 사회구성원의 참여와 소통의 순으로, 실천하는데 장애요인으로는 교육환경의 어려움, 생태미술 수업자료 및 구체적 예시부족, 교사의 생태미술에 대한 이해부족의 순으로, 생태미술활동을 통해 함양할 수 있는 누리과정 예술경험영역의 핵심역량으로 자연친화적 소통능력, 생태친화적 감수성, 창의융합능력의 순으로 나타났으며, 생태미술활동을 실시하는데 예술경험영역의 자료가 충분하지 않다고 보는 것으로 밝혀졌다. 둘째, 생태미술활동과 지속가능발전교육에 대해 거의 모든 교사가 둘 간에 연관성이 있으며, 실천에 있어서 어려운 점으로 지속가능발전에 관한 인식부족, 교재교구 및 자료의 부족, 교육정책과 지원의 부족, 연수프로그램의 미흡 등의 순으로, 이러한 교육실행을 위한 지원은 교재교구 및 자료의 확충, 교육정책과 지원 확대, 지속가능발전교육에 대한 인식 확대, 연수프로그램 확대 등의 순으로 필요하다고 하였다. 또한, 생태미술활동에서 실천할 수 있는 지속가능발전교육 내용에서 교사들은 '기후변화 대응', '깨끗한 에너지', '물과 위생', '양질의 교육', '건강과 웰빙'과 '해양생태계'의 순으로 높게 인식하고 있으며, 생태미술활동 프로그램이 개발된다면 활용할 것으로 응답한 비율이 높아, ESD 지향 생태미술활동 프로그램 개발이 시급할 것으로 사료된다.

• 한국조경학회지
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• 제37권4호
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• pp.22-31
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• 2009

본 연구에서는 무분별한 개발로 인한 자연경관훼손의 예방을 목적으로 자연경관보존방안을 제정하기 위한 경관평가를 수행하였다. 우리나라에서의 경관평가는 개발계획에 따른 시각경관만을 평가하고 있는 현실이며, 경관의 생태적 본질까지 동시에 평가하지는 못하고 있는 실정이어서 이에 대한 대책이 요구되고 있다. 본 연구에서는 이를 위해 시각경관민감도와 생태경관다양성을 요소로 하는 경관평가를 진행하였다. 경관평가의 목적은 실질적인 보존지역을 설정하고 그에 따른 계획을 수립하기 위함이기 때문에 이앤 맥하그(Ian McHarg)의 도면중첩법을 적용한 지리정보시스템(Geographic Information System: GIS)를 활용하였으며, 생태경관다양도와 시각경관민감도를 측정하여 중첩분석하였다. 또한, 경관영향요소의 영향력분석을 통해 집중관리지역을 분석할 수 있었다.

• 한국기후변화학회지
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• 제1권1호
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• pp.21-30
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• 2010

본 연구에서는 홍수, 가뭄, 물관리 등 수자원 분야 취약성을 규준(criteria) 및 지표(indicators)를 활용하여 평가하는 방법을 제시하였다. 제시된 방법을 통해 전국 및 지역 단위의 취약성 평가를 실시하였다. 또한, 평가 규모별 적정 유역 크기에 대한 방안도 아울러 제시하였다. 수자원 취약성 평가에 이용한 규준은 크게 평가 대상지의 민감도, 기후에의 노출, 기후변화에 대한 적응력으로 분류할 수 있으며, 각 규준을 지표로 계량화 및 표준화하여 취약성 평가에 반영한다. 기후변화에 대한 수자원 분야의 취약성은 일반적으로 시간이 갈수록 증가하는 것으로 평가되었다. 평가 대상지의 유역 규모는 국가 차원의 취약성 평가는 대유역을 기준으로 설정하는 것이 유의하며, 지역 차원의 평가는 소유역을 기준이 적절함을 알 수 있었다.

• 대한지구과학교육학회지
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• 제8권3호
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• pp.378-386
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• 2015

This study is to find out that pre-service elementary teacher's the effects of a ecology mentor club activities to the environmental sensitivity and the effects on the environment friendly attitude of elementary school students. This study has been aimed at 25 students of 5th grade in B metropolitan city S elementary school in 2015, B educational University of elementary pre-service teachers 10 people, Elementary School Teachers10 people to apply a ecology club mentor activities to investigate a comment participated in environmental mentor club activities of elementary pre-service teachers and the environmental sensitivity and the effects on the environment friendly attitude of elementary school students. Procedures for this research was the topic for setting ecology club mentor activities of elementary school students, pre-service elementary school teachers receive consultation from field teachers and guide to ecology club mentor activities of elementary school students. Before the ecology club mentor activities, pre-test environmental sensitivity and the environment-friendly attitude of were carried out. After the experiment, post-test of environmental sensitivity and environmental friendly attitude check was carried out. Also, investigate a comment of pre-service elementary teachers participate and guide to ecology club mentor activities of elementary school students. After the experiment results are as follows. First, the ecology club mentor activities of pre-service elementary school teachers are effective to cultivate environmental sensitivity of the elementary school students. Second, the ecology club mentor activities of pre-service elementary school teachers are effective to cultivate eco-friendly attitude of the elementary school students. Third, after ecology club mentor activities of elementary school students, pre-service elementary school teachers now have a very good feeling. Based on these results, suggestions for further research are as follows. First, the variety of ecological club programs target to elementary school students are needed. Second, there is a need for continuing research on the ecology club activities.

• 한국환경과학회지
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• 제14권9호
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• pp.827-835
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• 2005

A three-dimensional ecological model (EMT -3D) was applied to Nonylphenol in Tokyo Bay. EMT -3D was calibrated with data obtained in the study area. The simulated results of dissolved Nonylphenol were in good agreement with the observed values, with a correlation coefficient(R) of 0.7707 and a coefficient of determination (R2) of 0.5940. The results of sensitivity analysis showed that biodegradation rate and bioconcentration factor are most important factors for dissolved Nonylphenol and Nonylphenol in phytoplankton, respectively. In the case of Nonylphenol in particulate organic carbon, biodegradation rate and partition coefficient were important factors. Therefore, the parameters must be carefully considered in the modeling. The mass balance results showed that standing stocks of Nonylphenol in water, in particulate organic carbon and in phytoplankton are $8.60\times 10^5\;g,\;2.19\times 10^2\;g\;and\;3.78\times 10^0\;g$ respectively. With respect to the flux of dissolved Nonylphenol, biodegradation in the water column, effluent to the open sea and partition to particulate organic carbon were $6.02\times10^3\;g/day,\;6.02\times10^2\;g/day\;and\;1.02\times10^1\;g/day$, respectively.

• 한국물환경학회지
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• 제26권6호
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• pp.1000-1007
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• 2010

In this study, toxicity monitoring of sediments collected from 25 stations in the Geum river basin was conducted using Daphnia magna and Moina macrocopa. According to the results of acute toxicity tests (immobilization and mortality) of organic extracts of semdiments, Miho stream showed much less toxicity than Gap and Nonsan streams. In particular, significant toxicity was observed in both species for St.15 and St.16 sediment samples that passed through Deajeon city as a branch of Gap stream. For Nonsan stream, St.23 sediment showed high toxicity toward M. macrocopa. This site seemed to be affected by upper agricultural industrial complex. Additionally, M. macrocopa showed a higher sensitivity than D. magna for organic extracts of sediments. In the case of toxicity tests using sediment pore water and aqueous extracts, only pore water of St.27 sediment was toxic against D. magna. Toxicity identification evaluation showed that hydrogen sulfide was likely a major toxicant in the pore water.

• 한국환경과학회지
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• 제29권10호
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• pp.951-959
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• 2020

This study aimed to re-establish the conservation area reflecting landscape ecological value through scenario program, targeting Odaesan National Park. The basic data were mapped in watershed planning units, which were set considering topographical and ecological values. The framework of Marxan with Zones, using an indexation process, was using the mapped indicators. Each best solution according to the scenarios was assessed through sensitivity analysis, and a final solution was selected among the best solutions, considering criteria including area ratio of conservation area and grouping. Lastly, the final solution was verified in the overlap analysis with recent zonation. As a result, through the framework of Marxan with Zones, the best solution of scenario 1, which was set by the highest conservation criteria was selected as the final solution, and the area ratio of conservation area and grouping was excellent. As for the overlap analysis, the suggested conservation area was improved compared to recent zonation in terms of the area ratio (39.4%), biotope grade I (35.6%) and the distribution points (7 places) of legally protected species.

• 한국조경학회지
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• 제33권6호
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• pp.127-139
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• 2006

Mt. Yokmang landscape design awarded first in [North container terminal site furtherance construction in Busan new port], design competition sponsoring in the Korea Container Terminal Authority in 2005. Design guideline was to propose the symbol of new port and to establish landscape plan in consideration of view and geological location. Because landscape plan required establishment of restoration plan for cutting slope, Mt. Yokmang became the major object. The purpose of planning are as follows. The first purpose is to minimize existent natural environment damage, and the second, to connect with ambit and create new image. The third is to provide place of rest and interchange for local resident. Reflecting stratum structure and landscape characteristics, cutting slope consisted of [utilization slope], [presentation slope], [landscape slope], and [ecological slope]. Vegetation design applied ecological restoration method through restoration of stratum, and eve environment-friendly afforestation, planned program that can connect area with existing ecosystem. In process that decides form of the cutting slope, analyze view structure and visual exposure in various access routes, sensitivity etc. was accomplished. Also, symbolic tower(Ocean Polaris) that presents in architecture and landscaping features, night landscape planning could gain synergy effect by keeping consistence with landscape and ecological planning. Passing through final design and construction process, I expect that the Mt. Yokmang will be a new landmark in Busan new port.