• 한국산림과학회지
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• 제80권3호
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• pp.287-295
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• 1991

국립공원(國立公園)을 포함한 자연휴양지(自然休養地)에서 과도한 개발에 따른 자원파괴나 무절제한 이용행위로 인한 환경오염현상은 Social Dilemma에 기인하는 현상으로 볼 수 있다. 자연휴양지(自然休養地)의 Social Dilemma는 공공자원(公共資源)인 산림휴양자원(山林休養資源)을 개발하고 관리하는 과정에서 발생하는 "개인의 이윤추구행위와 공공이익간의 갈등(葛藤)"을 말한다. Social Dilemma는 2가지 특성으로 요약된다. 첫째, 공동체의 구성원 각자가 자신의 이익만을 추구할 경우, 서로 협동하는 경우와 비교해서 더 큰 손해의 댓가를 치러야 하고, 둘째, 공동의 이익을 위해 협동을 하는 경우에는 구성원 각자는 더 큰 보상을 받게 된다. 국립공원(國立公園)에서 Social Dilemma의 해소방안(解消方案)은 크게 구조적(構造的)인 접근방법(接近方法)과 개별적(個別的)인 접근방법(接近方法)으로 구분되고, 구조적(構造的)인 접근방법(接近方法)에는 관리대표자(管理代表者)의 선출(選出), 선택적(選擇的) 보상제도(補償制度) 및 자원(資源)의 소유(所有)나, 관리(管理)를 개별화(個別化)하는 방법이 있으며, 개별적(個別的)인 접근방법(接近方法)에는 직접대화(直接對話)와 홍보(弘報) 및 교육적(敎育的)인 접근법이 포함된다. 본 연구에서는 실험실 연구와 공원현장실험연구의 결과를 Social Dilemma 이론에 의해 종합함으로써 자연휴양지자원에서의 Social Dilemma 이론의 적용을 위한 근거를 제시하였다.

• The Korean Journal of Ecology
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• 제19권4호
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• pp.305-320
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• 1996

It is necessary to obtain information about the productivity of the human-influenced forest and to understand the consumption of biomass resources in secondary forest in order to examine the resource flux by human activity in rural landscape. Thus the aims of this study were to elucidate the biomass and their use of secondary Pinus densiflora forests and to discuss sustainable utilization of secondary forests in rural landscape system. This study was carried out in Yanghwa-ri, Kongjugun, Chungcheongnam-do, central Korea. The changes of growth rate and aboveground biomass of a pine forest for 2 years were analyzed to understand forest management regimes in rural pine forests. Through allometric equations deduced from 25 sample trees, biomass was estimated. The biomass increase of pine forest was approximately 16.36 t/ha/yr in the unexploited stand and 12.24 t/ha/yr in the exploited stand. These were nearly equal to those of natural pine forests in central Korea. This result proved that human-influenced pine forest in rural landscape as well as the natural one has high potentiality to provide forest products. Making graveyard in forest-land was the important disturbance and land-use which currently occurring in rural landscape in the study area. Finally, we presented some forest management for stutainable and positive uses of secondary forests as one of the local energy resources in terms of the holistic landscape-ecological view.

• Asian-Australasian Journal of Animal Sciences
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• 제14권1호
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• pp.104-113
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• 2001

Smallholder dairy production systems in developing countries are discussed with reference to type of systems, their characteristics, potential, and opportunities for improvement. Three types of dairy systems are identified and described: smallholder systems, smallholder cooperative dairy production systems, and intensive dairy production systems. The first two systems are by far the most important, and are associated with increasing intensification. Buffaloes are especially important in South Asia, but elsewhere dairy production mainly involves Holstein-Friesian cross-bred cattle. Dairy goats are important in some countries, but are generally neglected in development programmes. The expansion and intensification of smallholder dairy production is fueled by increased demand for milk with associated problems of milk handling and distribution, hygiene and environmental pollution. The major constraints to production are inter alia, choice of species, breeds and availability of animals; feed resources and improved feeding systems; improved breeding, reproduction, and animal health care; management of animal manure, and organised marketing, and market outlets. These constraints provide major opportunities and challenges for research and development to increase dairy production, efficient management of natural resources, and improved livelihoods of poor farmers. Specific areas for research are identified, as also the need of a holistic focus involving interdisciplinary research and integrated natural resource management, in a shared partnership between farmers and scientists that can demonstrate increased productivity and sustainable production systems. Suggestions for performance indicators in smallholder dairy production systems are indicated.

• 한국재난정보학회 논문집
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• 제9권2호
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• pp.153-163
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• 2013

최근 국내외적으로 자연 및 인적재난에 의한 피해는 매년 증가하고 있다. 이들 재난에 대한 피해는 완전히 방지할 수는 없으나 국가적으로 잘 준비된 예방 및 관리대책 수립에 의하여 막대한 인명 및 재산피해가 발생되는 경우에 이를 충분히 저감할 수 있다. 방재자원은 재난 발생 시 투입되는 인력, 물자, 장비, 시설자원을 의미한다. 실제 재난발생 시 이들 자원의 신속하고 적절한 투입은 실제 그 재난을 최소화하는데 매우 중요한 요소이다. 그러나 현재 국내 방재자원의 경우, 적절한 방재자원 동원을 위한 기준이나 분류가 체계적으로 구성되어 있지 못한 상황으로 이로 인한 효과적인 자원관리 및 투입이 효율적으로 운영되지 못하고 있는 실정이다. 본 연구는 현행 국내에서 불규칙적으로 적재, 활용되고 있은 방재자원의 효율적인 동원체계 구축을 위한 초기단계의 연구로서 보다 효율적인 방재자원의 관리 및 운영을 위한 방재자원의 기능별, 역할별 분류를 구축하고 이를 제시 보다 효과적인 방재자원 관리 및 동원시스템을 구축하는 토대를 마련하고자 한다.

• 동의생리병리학회지
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• 제30권2호
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• pp.88-94
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• 2016

The study was carried out to examine the anti-obesity effects of 40% ethanol extract from green tea seed (GS) and quantitative determination of caffeine as its major compound. The specificity was satisfied with retention time and UV spectrum by analysis of caffeine using HPLC and comparison with standard compound. It showed a high linearity in the calibration curve with a coefficient of correlation (R²) of 0.9974. The amount of caffeine in GS was about 4.649 mg/g (0.465%) in the three times analysis, and relative standard deviation (RSD) was less than 0.452% by the validated method. The anti-obesity effects of GS were evaluated by using Oil Red O staining in 3T3-L1 adipocytes and body weight, visceral fat and lipid profiles in high fat diet (HFD)-induced C57BL/6 obese mice. Our results indicated that treatment with GS dose-dependently decreased lipid accumulation contents (p<0.001). Moreover, after oral administration for 30 days feeding with HFD-induced obses mice, GS (100 and 300 mg/kg/day) produced a significant decrease in serum total cholesterol (TC), glutamic oxaloacetic transaminase (GOT), glutamic pyruvic transaminase (GPT) and visceral fat. Thus, the result of this study indicate that the GS may be a useful resource for the management of obesity.

• 한국기후변화학회지
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• 제9권4호
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• pp.303-312
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• 2018

In Ethiopia, climate change and deforestation are major issues hindering sustainable development. Local Ethiopian communities commonly perceive an increase in temperature and a decrease in rainfall. Meteorological data shows that rainfall has declined in southern Ethiopia, and spring droughts have occurred more frequently during the last 10-15 years. The frequently occurring droughts have seriously affected the agriculture-dominated Ethiopian economy. Forests can play an important role in coping with climate change. However, deforestation is alarmingly high in Ethiopia, and this is attributed mainly to agricultural expansion and fuel wood extraction. Deforestation has led to a decrease in various benefits from forest ecosystem services, and increased ecological and environmental problems including loss of biodiversity. To resolve the issues effectively, it is crucial to enhance climate change resilience through reforestation and various international collaborations are urgently needed. To continue collaboration activities for resolving these issues, it is first necessary to address fundamental questions on the nature of collaboration: does collaboration aim for a support-benefit or a mutual benefit situation; dividing the workload or sharing the workload; an advanced technology or an appropriate technology; and short-term and intensive or long-term and extensive?. Potential collaboration activities were identified by sectors: in the governmental sector, advancing governmental structure and policy, enhancing international collaborations and negotiations, and capacity building for forest restoration and management; in the research and education sector, identifying and filling gaps in forestry and climate change education, capacity building for reforestation and climate change resilience research, and developing bioenergy and feed stocks; and in the business and industry sector, supporting conservation based forestry businesses and industries, while promoting collaboration with the research and education sectors. It is envisaged that international collaboration for enhancing climate change resilience through reforestation will provide a strong platform for resolving climate change and deforestation issues, and achieving sustainable development in Ethiopia.

• 한국콘텐츠학회논문지
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• 제12권11호
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• pp.492-501
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• 2012

최근 자연성지에 대한 관심이 증대되고 있다. 자연성지란 특정 민족이나 공동체에게 특별한 영적 중요성을 갖는 육상 또는 해상의 구역으로서 정의된다. 본 연구는 최근 이슈화되고 있는 자연성지에 대한 개념과 가치, 관리원칙에 대하여 이론적으로 고찰하였다. 또한, 자연성지의 가치를 적용 가능한 국내 천연기념물 식물의 현황을 분석하고 그 특성을 살펴보았다. 분석결과 국내 천연기념물 식물 중 63건이 이에 해당되었으며, 생물다양성, 문화성, 경관 및 미적 가치와 함께 관광자원으로써의 가치를 지니고 있었다. 이는 자연성지의 가치와 일치하는 것이었으며, 향후 우리나라 자연성지 등재 작업에 기초자료로 제공하고자 한다. 본 논문은 국제적으로 중요성이 대두되고 있는 자연성지를 국내 천연기념물 식물 측면에서 재조명함으로써 어떻게 관리하고 보전해야 하는지 보여주었다는데 의의를 지니며, 향후 보다 구체적이고 실증적인 추가 연구가 필요하다.

• 한국지하수토양환경학회지:지하수토양환경
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• 제25권3호
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• pp.12-22
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• 2020

Managed aquifer recharge (MAR) is a promising water management strategy for securing stable water resources to overcome water shortage and water quality deterioration caused by global environmental changes. A MAR demonstration site was selected at Imgok-ri, Sangju-si, Korea, based on screening for the frequency of drought events and local water supply situations. The abundant groundwater discharging from a nearby abandoned coal mine is one of the potential recharge water sources for the MAR implementation. However, it has elevated levels of arsenic (~12 ㎍/L). In this study, the potential of the natural attenuation of arsenic by the field geological media was investigated using batch and column experiments. The adsorption and desorption parameters were obtained for two drill core samples (GM1; 21.8~22.8 m and GM2; 26.0~27.8 m depth) recovered from the potentially water-conducting fracture-zones in the injection well. The effluent arsenic concentrations were monitored during the continuous flow of the mine drainage water through the columns packed with the core samples. GM2 removed about 60% of arsenic in the influent (0.1 mg-As/L) while GM1 removed about 20%. The results suggest that natural attenuation is an acitive process occurring during the MAR operation, potentially lowering the arsenic level in the mine drainage water below the regulatory standard for drinking water. This study hence demonstrates that using the mine drainage water as the recharge water source is a viable option at the MAR demonstration site.

• 한국지하수토양환경학회지:지하수토양환경
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• 제16권2호
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• pp.61-76
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• 2011

This study was objected to provide suggestions for best management practices to restore the cultural and historical values of the wells in Palaces as well as their water qualities. Water resources in the five Palaces in Seoul Metropolitan, including Gyeongbokgung, Changdeokgung, Changgyeonggung, Jongmyo Shrine, and Deoksugung, were surveyed for their physical flows and chemical compositions from April to July in 2010. Ground waters in most wells were found at depths within 5 m from the ground surface, showing typical water-table aquifer systems. Hydraulic gradients indicate water resources in Gyeongbokgung, Changdeokgung, and Changgyeonggung flowing toward south, and toward east in Deoksugung area. Especially, water-level fluctuation data at S-10 in Deoksugung implied the influence of groundwater discharge facility. In Jongmyo Shrine, water was not detected in wells, indicating the water level was lower than the well depth. Based on the water chemistry and stable isotope analyses, water resources and their qualities appeared to be formed by the water-rock interaction along the groundwater paths. S-10 (Deoksugung) and S-14 (Changgyeonggung) samples were contaminated with nitrate ($NO_3$) in levels of higher than Korean drinking water standard, 10 mg/L as $NO_3$-N, but once in four sampling campaigns. In the situation that water resources in Palaces still maintain natural characteristics, the materials that will be used for the restoration and improvement of the Palace water supplies should be carefully selected not to disturb the natural integrity. In addition, because the wells are located in the center of metropolitan area, a systematic monitoring should be applied to detect and to manage the potential impacts of underground construction and various pollution sources.

• 환경정책연구
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• 제5권4호
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• pp.51-84
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• 2006

본 연구는 국립공원의 과도한 이용을 방지하여 국립공원의 우수한 자연환경을 지속가능하게 유지할 수 있는 방안을 제시하고자 GIS를 활용한 환경용량 산정과 유비쿼터스(Ubiquitous) 개념을 이용한 공원 관리체계 수립방안을 제시하였다. 종래의 국립공원에 대한 연구는 대체로 자연자원, 인문자원, 시설물, 이용객에 관한 연구 및 그에 대한 관리 기준을 개별적인 입장에서 연구하였으나, 본 연구에서는 통합분석 방법을 활용한 수용력의 개념을 정의하였다. 생태적 보전성과 환경적인 민감성을 고려한 환경생태 지수, 매력가치에 근거한 탐방유인지수를 산정하였다. 수용력의 효과적인 분석 및 관리를 위하여 GIS를 이용한 종합적인 관리대책 방안으로 관리지수를 제시하였다. 그 결과 지리산 국립공원의 경우 유도가 필요한 5등급이 71%를 차지하였고, 분산이 필요한 1등급 지역이 0.01%를 차지하였다. 또한, 본 연구는 환경용량 산정에 필요한 기초 데이터의 수집을 위해 방대한 자연 환경과 시설물, 탐방객에 대하여 체계적이고 지속적인 모니터링을 위해서 유비쿼터스 개념의 모니터링 방안을 마련하였다. 정보를 수집하고 이를 GIS기반의 공간의사 결정체계를 통한 환경용량의 정량적, 정성적인 목표를 수립하여 지속가능한 국립공원 관리방안을 제시하였다. GIS 공간의사결정 시스템과 유비쿼터스 기반 기술을 통합한 시스템을 통해 효과적인 국립공원의 관리체계를 제시하고자 한다.