• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2001년도 추계정기 학술발표회 초록집
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• pp.70-70
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• 2001

• 한국환경복원기술학회지
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• 제19권4호
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• pp.81-89
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• 2016

This study aims to understand the relationship between visitors and the degradation of natural resources in Bukhansan national park. We analyzed the trend of the number of visitors, destruction of natural resources and decrease of biodiversity per year. We further compared three types of trails, heavily-used trails and rarely-used trails and a trail with limited access, regarding the degree of destruction in the National Park through a field survey. Our result showed that increasing number of visitors had direct and indirect impact on the destruction of natural resources in the National Park. The direct impact came from visitors' excessive use of trails. Naturally, increasing number of visitors caused an immoderate use of natural resources. Physical degradation such as exposure of tree root, poor drainage of trails, trail erosion was more severe than other types of trails. Decreasing biodiversity or mild disturbance around trails is the indirect impact such as broken bough, worn-bark in rarely-used trails. Destruction scale greatly increased as the number of visitors increased. Real-named reservation system helped to prevent trails from degradation. Our result calls for the need of controlling the number of visitors to Bukhansan National Park to mitigate the degradation. We recommend dispersing visitors from the heavily-used trails to other trails and implementing real-named reservation system in the rarely-used trails for the effective management of the national park.

• Plant Resources
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• 제1권1호
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• pp.53-59
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• 1998

Laboratory experiments for the removal efficiency of heavy metals in land application of sludge, the accumulation and translocation of heavy metals in x plants after transplanting, and the responses of Minari growth with different ratio of land application of sludge were conducted to determine the potential ability of bioremediation with Minari plants. The removal rate and translocation of copper. zinc. lead. and cadmium in soil and plants were compared after transplanting the Minari plants to soil treated with different ratio of sludge. The removal efficiency of heavy metals in soil incorporated with sludge was different with application ratio, but increased with growing periods of Minari plants. The removal efficiency of Cu, Zn, Pb, and Cd ranged from 67 to 74% from 51% to 63%, from 37% to 71%. and from 15% to 25% after 45 days of transplanting. respectively. The amount removed the copper value. 65.9 mg/kg, observed to be highest in soil incorporated 3% sludge after 45 days. The translocation of Cu. Zn. Pb. and Cd from shoots to roots ranged from 18 to 53%, from 17 to 32%, from 14 to 49%, and from 23 to 38% over growing periods. respectively. In plant responses it appeared to be inhibited the plant growth in the treatment compared with the control at early stage of growth. However, the fresh weights of Minari plant increased from 12.5 to 62.5% in the sludge application after 45 days relative to the control. Therefore the Minari might play a useful role in bioremediation of Cu, Zn, Pb, and Cd in the land application of sludge.

• 한국잠사학회:학술대회논문집
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• 한국잠사학회 2001년도 제44회 추계 학술연구 발표회
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• pp.65-65
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• 2001

no Abstract, See Full Text

• 한국응용곤충학회:학술대회논문집
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• 한국응용곤충학회 2001년도 추계 합동 심포지엄 및 학술발표대회
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• pp.133-133
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• 2001

• 한국환경과학회지
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• 제12권2호
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• pp.151-155
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• 2003

The resources conservation system is comprehended, making Taean-haean National Park a research material by applying the fact of landowning, designating an LOP and Korea and Japan's Natural Park Act. Following conclusions were obtained in this study; Most of land areas of the National Park are privately owned; Only a few have been designated as Natural Reservation, a core reserved area on LOP, and a sandy beach, a sand dune, a sand spit, a tidal flat, a wetland, etc are distributed in the natural environment area so they were exposed to development; As seen in most of coastal type of National Parks, 13 commercial beaches are established. The annual rush to the beaches appears in July and August; Sand dune areas that have to be managed in terms of conservation, are turned into beaches. Moreover, the collective facilities areas are randomly developed. So they fail to function originally; The current Natural Park Act has no systematic devices for conservation of the natural resources on the seashore or offshore.

• 한국조경학회지
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• 제39권2호
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• pp.10-17
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• 2011

전 세계적으로 자연자원의 이용 및 관리에 대한 패러다임이 변화하고 있다. 자연자원의 보전 가치를 높이는 동시에 지역발전의 기회요인으로 활용하겠다는 현명한 이용의 중요성이 대두되면서 자연자원을 활용한 지역발전이 주목받고 있다. 본 연구는 자연자원의 분포와 이용 잠재력 등에 따른 지역유형을 구분하고, 각 유형별 지역발전 방안을 제안하는데 목적이 있다. 먼저 자연자원을 생물종 자원, 생태계 경관자원, 무생물자원의 3가지 유형으로 구분하고, 총 27개의 세부 분석 지표를 설정하였다. 분석의 공단 단위는 165개 지자체의 행정구역으로 설정하였으며, 최종적으로 각 지자체별 자연자원 공간자료를 구축하였다. 지역 유형을 분류하기 위해 지역별 자연자원의 세부 지표를 요인분석한 후 이를 군집분석하는 방법을 사용했다. 요인분석 결과 산림자원요인, 경관자원요인, 연안생태자원요인, 내륙수자원요인, 지형자원요인, 생태탐방자원요인 등의 6개 요인이 도출되었다. 요인분석 결과를 근거로 군집분석한 결과 산림생태지역, 내륙수자원지역, 연안생태 경관지역, 지형 생태지역, 복합자연자원지역, 도시 근교 생태탐방지역, 생태경관지역, 기타지역 등 총 9개 지역유형을 도출하였고, 각 유형별로 지역발전 방안을 제시하였다. 본 연구는 자연자원을 활용한 지역발전 정책 및 계획에서 대상 지역의 선정과 지역의 발전 방향을 설정하는 기초자료로서 활용될 수 있다.

• 한국동물학회:학술대회논문집
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• 한국동물학회 2001년도 한국생물과학협회 학술발표대회
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• pp.195.1-195
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• 2001

No Abstract, See Full Text

• 한국응용곤충학회:학술대회논문집
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• 한국응용곤충학회 2004년도 춘계 학술발표회
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• pp.152-152
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• 2004

• Asian-Australasian Journal of Animal Sciences
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• 제32권8호
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• pp.1095-1103
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• 2019

Objective: Among stress responses, the unfolded protein response (UPR) is a well-known mechanism related to endoplasmic reticulum (ER) stress. ER stress is induced by a variety of external and environmental factors such as starvation, ischemia, hypoxia, oxidative stress, and heat stress. Inositol requiring enzyme $1{\alpha}$ ($IRE1{\alpha}$)-X-box protein 1 (XBP1) is the most conserved pathway involved in the UPR and is the main component that mediates $IRE1{\alpha}$ signalling to downstream ER-associated degradation (ERAD)- or UPR-related genes. XBP1 is a transcription factor synthesised via a novel mechanism called 'frame switch splicing', and this process has not yet been studied in the horse XBP1 gene. Therefore, the aim of this study was to confirm the frame switch splicing of horse XBP1 and characterise its dynamics using Thoroughbred muscle cells exposed to heat stress. Methods: Primary horse muscle cells were used to investigate heat stress-induced frame switch splicing of horse XBP1. Frame switch splicing was confirmed by sequencing analysis. XBP1 amino acid sequences and promoter sequences of various species were aligned to confirm the sequence homology and to find conserved cis-acting elements, respectively. The expression of the potential XBP1 downstream genes were analysed by quantitative real-time polymerase chain reaction. Results: We confirmed that splicing of horse XBP1 mRNA was affected by the duration of thermal stress. Twenty-six nucleotides in the mRNA of XBP1 were deleted after heat stress. The protein sequence and the cis-regulatory elements on the promoter of horse XBP1 are highly conserved among the mammals. Induction of putative downstream genes of horse XBP1 was dependent on the duration of heat stress. We confirmed that both the mechanisms of XBP1 frame switch splicing and various binding elements found in downstream gene promoters are highly evolutionarily conserved. Conclusion: The frame switch splicing of horse XBP1 and its dynamics were highly conserved among species. These results facilitate studies of ER-stress in horse.