Loneliness, a well-established risk factor for mental health, has been strongly associated with low subjective well-being (SWB). However, less is known about potential boundary conditions that may ameliorate this ‘dark side’ of loneliness. Social connections are critical for SWB based on innate evolutionary traits; a lack of belonging was directly harmful to human survival in the past. In this study, we hypothesized that loneliness would exert a more pronounced influence on SWB when an individual’s need for others (i.e., a social resource) is perceived as high while simultaneously existing in a harsh environment. With a particular focus on urban residents in Seoul, who are presumed to be more vulnerable to loneliness, we examined whether feeling lonely matters less to SWB under favorable environmental conditions. As expected, a pilot study indicated that loneliness was less harmful to the SWB of individuals who perceived their surroundings as relatively secure and favorable. We then replicated the results in an experimental study by exposing people to cues of either a harsh (e.g., via scarcity cues) or a favorable environment.

Environmental DNA (eDNA) has emerged as a promising tool for aquatic biodiversity monitoring, yet its collection in lentic ecosystems remains technically constrained by filtration capacity and field logistics. In this study, we applied a novel eDNA concentration system, QuickConcTM, to evaluate freshwater mussel diversity in lakes, and compared its performance with the conventional GF/F filtration method. Water samples were collected from four reservoirs at surface, mid, bottom, and waterside layers, and processed using both filtration techniques. Metabarcoding of mitochondrial 16S rDNA revealed that QuickConcTM captured a higher average number of amplicon sequence variants (ASVs) and exhibited greater species richness and diversity indices (Shannon and Simpson), although the differences were not statistically significant. QuickConcTM samples showed a greater capacity to detect rare taxa and to recover higher ASV richness in certain cases, suggesting its potential to enhance biodiversity resolution. Species composition remained consistent across methods, with Cristaria plicata and Sinanodonta lauta being dominant in both cases. However, slight spatial variations in species assemblages were observed between center and waterside sampling points, highlighting the influence of habitat heterogeneity on eDNA distribution. Overall, our results demonstrate that the QuickConcTM system offers a practical and efficient alternative to traditional filtration methods for eDNA-based freshwater mussel monitoring, particularly in environments with high suspended solids. The findings underline the need for adaptive sampling strategies that consider both methodological and ecological factors when designing eDNA surveys in lentic ecosystems.

본 연구는 ESG 환경 공시 제도가 기후변화 대응에 중요한 역할을 하지만, 법적 강제성 부족, 제3자 검증 미흡, 정보 비교 가능성 및 일관성 부족, 그리고 이로 인한 그린워싱 문제 등 여러 한계를 가진다고 지적한다. EU ESRS, 미국 SEC, ISSB 등 주요 공시 제도를 국제환경법적 관점에서 비교 분석한 결과, ESRS가 이중 중대성을 통해 가장 포괄적인 환경 책임을 요구하지만, 전반적인 투명성 및 신뢰성 확보는 여전히 과제로 남아있다. 문제 해결을 위해 공시의 법적 강제성 강화, 제3자 검증 의무화, 글로벌 표준화 및 국가 간 협력 증진, 중소기업 지원 등이 필요하다고 강조한다. 궁극적으로 ESG 공시 제도의 실효성 증대가 기업의 실질적인 환경 개선 노력과 기후변화협약 목표 달성에 기여할 것이다.

I would like to suggest a solution to the problem of aircraft battalion helicopter noise complaints. Among the noise evaluation units, the unit that meets the military helicopter noise evaluation is analyzed and selected to scientifically and reasonably resolve the conflict between residents in the neighboring area and the aviation battalion. Helicopter noise is one of the important problems causing pollution in various pollution problems in the area around the aircraft battalion. The rational and planned process of aircraft battalions will be a way to address aircraft noise pollution.

This study investigated the seasonal variations and environmental factors influencing soil respiration in Quercus mongolica forests at three distinct sites in South Korea: Mt. Jeombongsan, Mt. Namsan, and Mt. Jirisan. Monthly soil respiration rates were measured from 2009 to 2010 using a closed chamber method, alongside assessments of soil temperature, moisture, and organic matter. Results revealed significant seasonal and spatial variability, with the highest respiration rates recorded during summer months. Soil temperature was identified as the primary driver of respiration, showing strong positive correlations across all sites (R2=0.64 - 0.88). The temperature sensitivity (Q10) values ranged from 2.7 at Mt. Namsan to 5.7 at Mt. Jeombongsan, underscoring the heightened vulnerability of cooler, high-altitude forests to warming. Soil moisture had a dual role, promoting respiration at moderate levels but inhibiting it under saturated conditions, particularly at Mt. Jirisan. Soil organic matter content exhibited an inverse relationship with respiration rates, indicating that substrate quality, rather than quantity, predominantly governs microbial activity. Plant-soil interactions, including root respiration and litterfall decomposition, further modulated respiration patterns, with site-specific differences reflecting variations in vegetation density and ecosystem structure. These findings highlight the complexity of soil carbon dynamics in temperate forests and the critical influence of environmental factors and plant-soil processes. The study provides essential insights for improving carbon cycling models and informs climate-resilient forest management strategies. Future research should prioritize long-term monitoring and experimental manipulations to better predict soil respiration under changing climatic conditions.

본 연구에서는 택지개발예정지구의 노인을 대상으로 친환경 택지개발 정책에 대한 수용성 수준 및 영향요인을 분석하였다. 이 과정에서 개발 지역 주민의 특성을 고려하여 영농활동을 하는 노인과 그 지역에 단지 거주하는 노인으로 집단을 나누어 비교분석하였다. 본 연구에서 수집된 자료 분석을 위하여 IBM SPSS Statistics ver. 27.0을 이용하였다. 주요 결과는 다음과 같다. 첫째, 영농활동을 하는 노인은 그 지역에서 단지 거 주하는 노인보다 개발정책에 대한 수용성이 유의미하게 높은 것으로 나 타났다. 다만, 모든 집단에서 정책수용성 수준은 높지 않은 것으로 평가 되었다. 둘째, 영농활동을 하는 노인과 그 지역에 단지 거주하는 노인은 정책수용성에 영향을 미치는 요인과 그 영향력이 다른 것으로 나타났다. 이와 같이 본 연구는 개발정책에 대한 주민의 수용성에 처음으로 주목하 여 택지개발예정지구의 노인에 대해 그 특성에 따른 차이점을 실증적으 로 분석함으로써 친환경 택지개발 정책이 원래의 의도대로 효과가 구현 되는데 필요한 정책집행 요인을 엄밀하게 규명하고 정책수용성을 증진하 기 위한 기초자료를 제공했다는 점에서 연구 의의를 찾을 수 있다.

This study compared relative growth rates (RGRs) of Neopyropia yezoensis and Neopyropia dentata in response to changes in water temperature (20, 22, 24, 26 and 28°C) and light intensity (40 and 80 μmol m-2·s-1) during early growth stages (1 and 10 mm). After 2 weeks of cultivation under a combination of high temperature and light intensity, the limit growth condition was 22°C for N. yezoensis and 26°C for N. dentata. N. yezoensis with 1 mm blade crimpled seriously at 22 to 26°C than its 10 mm blade. Both sizes were completely dead at temperature over 26°C. On the other hand, N. dentata was able to grow at relatively high temperatures. It grew higher with 10 mm blade than with 1 mm blade. N. dentata showed a normal color and displayed a flat surface without any decay at 28°C. The growth of N. dentata was limited and crimpled at 26 and 28°C 40 μmol photons m-2·s-1 conditions, although its normal growth and morphology were observed under other conditions. In the case of light intensity, it was confirmed that 80 μmol photons m-2·s-1 was more appropriate for grow of both species than 40 μmol m-2·s-1.

The world population is rapidly increasing; over the past 40 years, it has risen by 3.3 billion, reaching 7.8 billion people. Globally, Solanaceae plants contribute more than 6.5 million tons of food to the world’s diet, with potatoes being the fourth most produced crop, cultivated in over 300 countries. However, caution is necessary when consuming plants from the Solanaceae family, as they contain toxic substances known as alkaloids. While alkaloids can offer beneficial effects, such as antioxidants, anti-inflammatory compounds, and anti-cancer properties, tolerance to these compounds varies among individuals, meaning even very small amounts can have fatal effects.Among the major crops in the Solanaceae family, potatoes contain solanine and chaconine; tomatoes contain tomatine; and eggplants contain solasonine and solamargine. The concentration of these substances varies depending on the part of the plant, its developmental stage, and its variety. Additionally, levels can increase significantly due to environmental stress. The environment profoundly impacts the synthesis of secondary metabolites related to survival and defense. Research has confirmed that environmental conditions-such as high-temperature cultivation, low-temperature storage, drought and rainfall, strong light, weak light (shade conditions), and excessive fertilizer application-can increase alkaloid synthesis. Therefore, this study reviews research on alkaloids in Solanaceae crops.

This study aimed to provide foundational data for the conservation and improvement of the habitat of an endangered species, Viola websteri, in South Korea, by identifying the environmental characteristics of its habitat and determining main environmental factors influencing its population size. To achieve this, this study conducted literature reviews, field surveys of study sites, and spatial analyses based on previous research results, collecting data for 32 environmental attributes related to V. websteri. These collected data were utilized for factor analysis and path analysis, leading to the identification of environmental factors affecting population size based on scientific analysis processes and results. Additionally, this study examined correlations between population size and environmental factors, focusing on aspects related to amount of light, organic matter, tree height, tree cover, shrub cover, and soil humidity, all of which were found to influence the population size of V. websteri. The population size showed a negative correlation with the amount of light. However, it showed positive correlations with organic matter, tree height, tree cover, shrub cover, and soil humidity. Furthermore, the path analysis model indicated a strong positive correlation between fruiting rate and individual height of V. websteri. Overall, these results suggest that high cover of tree and shrub layers can create an environment that suppresses the herbaceous layer, allowing adequate light penetration, sufficient soil humidity, and organic matter, which can promote both growth and fruiting rates of V. websteri.

This study investigated the behavior and environmental impact of expanded polystyrene (EPS) in a simulated marine environment, focusing on the effects of UV exposure. Through a series of controlled experiments, it was found that UV-induced weathering increased the formation of smaller EPS degradation products, leading to higher concentrations of dissolved organic carbon (DOC) in the seawater. Additionally, it was suggested that the assembly behavior of dissolved organic matter (DOM) contributed to the reduction of DOC levels over time. The EPS layer exhibited slightly higher DOC concentrations compared to the seawater, likely due to hydrophobic interactions that retained degradation products near the EPS. Analysis of the soil layer revealed that EPS particles and degradation products settled or adsorbed more extensively under UV conditions, indicating a greater risk of sediment contamination. Soil layer elution experiments further confirmed that EPS particles and their degradation products could migrate through soil pores, posing a potential contamination risk to other environments. UV exposure resulted in a twentyfold increase in DOC release from EPS compared to dark conditions. These findings highlight the persistent pollution potential of EPS in marine environments, especially under UV exposure, and emphasize the need for effective EPS waste management and further research into its environmental impacts.

본 연구는 제주시와 서귀포시에 분포하고 있는 22개 오름의 식물상 자료를 활용하여 식물 생육형별 종풍부도에 대한 경관(오름 면적, 오름 높이, 오름 임상 다양성, 500m 내 녹지 면적) 및 환경인자(기후인자, 토양인자)의 영향을 구명하기 위해 수행되었다. 22개의 오름에서 총 153과, 486속, 870종의 식물이 관찰되었으며, 각 오름 내 종수를 활용하여 생육형별 종풍부도를 산출하였다. 식물의 생육형별 종풍부도의 제어인자를 추출하기 위해, 다모형추론법과 일반최소자승법을 수행했다. 그 결과, 오름 내 식물의 종풍부도를 제어하는 주요인자는 오름 면적, 높이 및 임상 다양성과 기후인자로 나타났다. 반면, 경관적 연결성을 대변하는 오름으로부터 500m 내 녹지의 면적과 토양인자는 종풍부도에 영향을 미치지 않는 것으로 나타났다. 종-면적 관계 이론에 기반한 면적효과와 서식지 이질성 효과의 증가는 균등한 자원분배와 다양한 서식지 유형을 야기하여 식물의 종풍부도를 증가시키는 것으로 보인다. 연평균 기온 감소와 강수량 증가는 식물의 수분스트레스를 감소시켜 종풍부도에 긍정적인 영향을 미치는 것으로 나타났다. 더욱이 기온 및 강수량에 따른 강한 환경 여과 효과는 이러한 기후조건에 간접적인 영향을 받는 토양인자와 분산 여과 효과정도를 대변하는 500m 내 녹지 면적의 효과를 상쇄시키는 것으로 나타났다. 이러한 결과는 면적이 작고 서식지 유형이 단순한 오름은 종의 멸종과 개체수 감소에 대한 민감도가 높다는 것을 의미한다. 이에 따라 본 연구는 오름 내 서식지 이질성을 높이거나 환경에 적합한 식물종을 도입하는 등 경관 및 환경인자를 고려한 구체적인 관리전략이 도입되어야 함을 시사한다.

This study aimed to assess the global and domestic efforts regarding the reduction of environmental-impact-factor emissions in the production and construction processes of concrete pavements. By utilizing internationally commercialized programs, this study sought to calculate the environmental impact factors generated by specific domestic concrete-pavement projects and identify areas for improvement. This study evaluated the global and domestic efforts of environmental impact reduction by focusing on the production and construction of concrete pavements. This study calculated the environmental impact factors for five cases using internationally commercialized software. The analysis revealed that, during the production and construction of concrete pavements, Portland cement production is a dominant cause of global warming, smog, acidification, and non-carcinogenic factors, whereas aggregate production is a dominant cause of ozone depletion, eutrophication, carcinogenicity, respiratory issues, environmental toxicity, and fossil-fuel depletion. This study analyzed the environmental impact factors of material mix and process during concrete pavement production and construction using foreign life-cycle inventory (LCI) databases. The environmental impact of each input material was identified. In the future, if an LCI and life-cycle impact assessment (LCIA) database for domestic road pavement materials is established and analyzed based on the conditions presented in this study, it is expected to lay the foundation for the development of environmentally friendly materials.

사막화는 기후변화로 인해 전 세계적으로 심화되고 있으며, 몽골도 이에 큰 영향을 받고 있다. 본 연구는 한국기독교환경운동연대(KCEMS)가 시작한 “은총의 숲” 프로젝트를 탐구함으로, 몽골의 사막화 문제를 다룬다. 30년에 걸친 이 프로젝트는 사막화 방지, 지속 가능한 창조 보전, 다차원적 인 이웃 사랑을 실천하는 한국교회의 생태적 선교 사례이다. KCEMS는 이 프로젝트를 지속적으로 추진하고 모니터링하며, 창조질서 보전 차원에 서 몽골 현지인들에게 실질적인 경제적 혜택을 제공함으로 몽골 현지인들의 참여를 촉진한다. 따라서 변혁적 제자도의 관점에서, 이 프로젝트는 기후변 화로 인해 영향을 받고 고통받는 이들과의 선교적 연대를 구현한다. 이를 통해 본 연구는 교회가 화해의 메시지를 전파하고, 생명죽임의 세력에는 저항하고 성령님과 연합하여 생명살림의 희망을 창조하도록 강조하며, 교회가 사랑과 정의의 복음을 선포하는 예언자적 사명으로서의 사역을 강화할 것을 촉구한다.

본 연구는 MaxEnt(Maximum Entropy Moedl) 모형을 이용하여 서울 도심 지역에서 너구리(Nyctereutes procyonoides) 출현 지역을 예측하고, 너구리 출몰에 영향을 미치는 환경 요인을 분석하였다. 분석은 2018년부터 2022년까지 수집된 서울시 야생동물센터의 구조 기록을 사용하였다. 토지 피복, 도로 면적, 경사도, 먹이원까지의 거리, 인구 밀도, NDVI(Normalized Difference Vegetation Index), 수역까지의 거리, 초지 면적을 환경 변수로 채택하여 가장 예측력이 높은 모델을 도출하였다. 분석 결과, 너구리 출몰 가능성이 높은 지역은 초지와 나지였고, 도로 밀도가 낮은 지역(<20%)에서 출몰할 가능성이 더 높았다. 또한 너구리는 경사가 완만하고(1.7˚), 먹이원에 가까우며(26.78m), 인구 밀도가 낮은(21.70명 /ha) 지역에서 발생할 가능성이 더 높았다. 다른 요인으로는 낮은 식생 밀도(NDVI 0.17), 하천과의 근접성(32.26m), 넓은 초지 지역(31.14%)에서 너구리가 출몰할 가능성이 높은 것으로 예측되었다. 서울 전역 중 약 65.42㎢(10.96%)가 잠재적인 너구리 발생 지역으로 확인되었으며, 주요 지역은 하천 주변, 산림 경계부, 도시공원 및 인근 초지와 농경지 주변이었다. 이 중 28개 지역(송파구 6개, 강서구 5개, 강남구 4개, 강동구 3개, 서초구 3개, 광진구, 노원구, 동대문구, 동작구, 마포구, 은평구, 중랑구 각각 1개 지역)이 너구리 발생 확률이 가장 높은 곳으로 확인되었다. 본 연구의 결과는 시민과 너구리의 공존 방안을 마련하는 데 중요한 기초 자료를 제공하며, 이를 통한 도시생태 전략 수립의 근거로 활용할 수 있을 것이다.