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국립공원 관리를 위한 해양생태계 장기 모니터링 프로그램의 발전 방향
이채린(Chae-Lin Lee),유재원(Jae-Won Yoo),정병관(Byungkwan Jeoung),김창수(Chang-Soo Kim),안동식(Dong-Sik Ahn),김성태(Sungtae Kim),성은주(Eun-Ju Sung),김성현(Sung-Hyun Kim),정수영(Su-Yeoung Jeong),박영석(Young-Seuk Park) 국립공원연구원 2021 국립공원연구지 Vol.12 No.2
생태계 변화의 모니터링은 효율적 생태계 관리를 위한 기초 정보 수집을 위해 중요한 과정이다. 많은 생태 현상과 그 과정은 오랜 시간에 걸쳐 진행되므로 국립공원의 지속적인 보전 및 효율적 관리를 위해 생태계 모니터링은 장기적으로 이루어질 필요가 있다. 본 연구는 국내외 장기 모니터링 프로그램 사례 분석을 통해 성공적인 장기 모니터링을 위한 방법으로써, 최적화된 모니터링 설계, 표준화된 운용방안 마련, 인적 자원 및 DATA 관리 체계 수립, 안정적인 재정 마련 및 후속지원 등을 제시하였다. 이를 바탕으로, 현재 10년 넘게 수행되고 있는 ‘HS호 유류유출 사고 해역 장기 모니터링 프로그램’의 발전 방향으로 적응형 모니터링 방식이 적용된 표준화된 프로토콜의 정립, QA/QC와 지속적인 자료 관리, 조사 항목의 연계성 강화 등의 구체적 방안을 제안한다. Monitoring ecosystem changes is an important process for collecting basic information for ecosystem management. Since many ecological phenomena and their processes take place over a long period of time, it is necessary to conduct long-term monitoring of ecosystems for the continuous conservation and efficient management of national parks. This study suggested an optimized monitoring design, standardized operation plan, human resource and data management system, stable financial preparation and follow-up support as methods for successful long-term monitoring through case analysis of domestic and foreign long-term monitoring programs. Based on this, it proposes specific measures such as establishing a standardized protocol with adaptive monitoring methods, continuous data management with QA/QC, and strengthening the linkage of investigation items in the development direction of the “HS oil spill accident long-term monitoring program” that has been conducted for more than a decade.
대벌레 Baculum elongatus (Phasmida: Phasmidae)의 발육에 미치는 온도의 영향과 생활환
박영석 ( Young Seuk Park ),권태성 ( Tae Sung Kwon ),김종국 ( Jong Kuk Kim ),김철수 ( Chul Su Kim ),박지두 ( Ji Doo Park ) 한국산림과학회 2003 한국산림과학회지 Vol.92 No.1
Characteristics of development and life cycle of the stick insect (Baculum elongatus) were studied through the laboratory experiments at 16, 20, 24. 28, 32℃ of different constant temperatures and the field study in the American Iocust forest in the Geomo mountain in Gumi of Gyongsangbuk-do. The stick insect showed five developmental stages for a nymph. The adult stage consisted of two periods : preoviposition and oviposition. During the former period, a time to mature eggs in ovary, the body length of the stick insect adult increased. The developmental periods of the young nymph were 97.3 days at 16℃, 65 days at 25℃, 49.7 days at 24t℃, and 42.8 days at 28℃, displaying higher growth rate at higher temperatures. All the test insects were died before the 3rd nymph stage at 32℃ of temperature. The lower growth- limit temperature and the effective accumulated temperature above the limit temperature required to complete nymph stages were 6.6℃ and 909 degree days, respectively. The duration of adult Period increased according to the increase of experimental temperatures. The optimum temperature for the oviposition was around 24℃, and it was coincident with the mean temperature of Gumi, where the field study was carried out, in July and August considered as the oviposition period in the field. The developmental stages of the stick insects were seasonally determined an the population of the Geomo mountain in Gumi. using the body length of the stick insects. Based on these results, a suitable time to control the stick insects in the their outbreaking arena was considered before mid June.
A Study on Flow Characteristics of ERF Between Two Parallel-Plate by Using PlV
정완보,박영석,Jung Wan-Bo,Park Young-Seuk The Korean Society of Manufacturing Technology Eng 2006 한국생산제조학회지 Vol.15 No.1
An experimental investigation was performed to study the characteristics of ER(Electro-Rheological) fluid flow in a horizontal rectangular tube with or without D.C voltage. To determine some characteristics of the ER flow, 2D PIV(Particle Image Velocimetry) technique is employed for velocity measurement. This research found the mean velocity distribution with 0kV/mm, 1.0kV/mm and 1.5kV/mm for Re = 0, 0.62, 1.29 and 2.26. When the strength of the electric field increased, the cluster of ERF are clearly strong along the test tube and the flow rate decreased. In this study, the rheology of ER fluid stagnating or flowing through a dispersion meter will be investigated by PIV method. And then the ER effect, which appears at the ER valves and their appliance will be visualized.
수온 및 하상 변화에 대한 참실지렁이 (Tubifex tubifex)의 행동 반응
강혜진,배미정,박영석,Kang, Hyejin,Bae, Mi-Jung,Park, Young-Seuk 한국하천호수학회 2017 생태와 환경 Vol.50 No.3
In this study, we investigated the response of freshwater oligochaete, Tubifex tubifex, to the water temperature changes and the differences of substrate composition in a laboratory condition. The changes of body shape were observed in a test cage according to the water temperature change ranging from $10^{\circ}C$ to $30^{\circ}C$ with $2^{\circ}C$ interval every 10 minutes. The substrate preference was observed with four different substrate composition from silt-clay to coarse sand. Our results displayed that T. tubifex preferred substrates with the smallest particle size (<0.063 mm). The water temperature influenced on the activity and body shape of T. tubifex, showing low activity with the coiled and constricted body shapes at lower temperature and high activity with relaxed linear body shapes at higher temperature. 담수에 서식하는 참실지렁이(Tubifex tubifex)가 수온 변화에 따라 보이는 반응과 하상의 구성에 대한 선호성을 분석하였다. 수온이 증가할 때 참실지렁이는 활동성이 증가하였다. $10{\sim}16^{\circ}C$의 낮은 온도에서 50% 이상의 개체가 몸을 수축하고 꼬여있는 상태로 관찰되었으며, $24^{\circ}C$ 이상의 온도에서는 대부분의 개체가 몸을 꼬임 없이 이완시킨 상태로 관찰되었다. 하상입자의 크기가 다른 여러 하상을 이용한 실험에서는 가장 작은 입자인 미사-진흙 (silt-clay, <0.063 mm)을 선호하였다.
백강균을 처리한 소나무림의 낙엽과 토양에 서식하는 무척주동물 군집에 대한 다변량분석
이범영(Buom Young Lee),신상철(Sang Chul Shin),박영석(Young Seuk Park),권태성(Tae Sung Kwon) 한국산림과학회 2001 한국산림과학회지 Vol.90 No.5
We tested if the treatment of Beauveria bassiana would influence invertebrate communities in litter and soils by multivariate analysis. The PCA (principal components analysis) was used for the analysis. Using the distances between communities in the ordination space, we carried out statistical tests whether any factors would influence structures of the communities. We did not found any significant effects of the Beauveria treatment on invertebrate communities in both litter and soils.