• 아시안잔디학회지
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• 제9권1호
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• pp.11-42
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• 1995

The investigation was made on the relationship among vegetation, net productivity, regrowth and soils of Moonheri-Wasoori, Soodowon-Sungilkyo and Mt. Kumhak grasslands in Chulwon area. The following conclusions have been made as the results of this study. The vascular flora of the grassland in Moonheri-Wasoori was composed of 102 species, the most of which were Medicago denticulata, Miscanthus sinensis, Arundinella hirta, Festuca ovina and Cassia nomame. The flora of Soodowon-Sungilkyn grassland was composed of 74 species, the most of which were Arundinella hirta, Miscanthus sinensis, Carex nanella, Festuca ovina and Cassia nomame. It of Mt. Kumfiak grassland was composed of 78 species, the most of which were Arundinella hirta, Carex nanella, Festuca ovina, Miscanthus sinensis and Aster scaber. These five species contributed greatly to the standing crop of live material which was in excess of 60% of it. The peak standing crop of each 413.7, 307.6 and $348.7g /m^2$ in Moonheri-Wasoori, Soo- dowon-Sungilkyn and Mt. Kuruhak grasslands wars reached in August under flooded conditions as a result of the growth of dominant species, Medicago denticulata and Arundinella hirta. The net prodution of organic matter was slight in some intervals but occurred throughout the growing season After cutting of grasses, the regrowth of new leaves mainly depended on growing stage and edaphic factors. Characteristics of the natural grassland soils, especially, concerning water, total nitrogen, avail-able phosphorus and exchangeable calcium were clarified and might be depend upon the quantity of plant production. Nitrogen, phosphorus and calcium concentration of leaves of Medicago denticulata, Arundinella hirta and Miscanthus sinensis were higher than of stems. Even if diem we diffurmem in the a-mb of nutrients among Medicago denticulata hirta and Miacanthus sinensis for single species and stands. they were covered by variations within species in the present survey. Key words: Competition, Production, Productivity, Regrowth, Soil Properties, Vascular Flora.

• 한국자원식물학회지
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• 제14권3호
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• pp.259-276
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• 2001

서운산(574m)은 지리적으로 북위 36$^{\circ}$54'~ 36$^{\circ}$50', 동경 127$^{\circ}$ 16'~127$^{\circ}$19'사이에 위치하며 경기도와 충청북도에 걸쳐 있다. 본 연구는 2000년 3월~10월까지 9차례에 걸쳐 실시한 현지조사의 결과를 종합하여 소산 식물의 목록을 작성하였다. 조사지의 소산 식물은 90과 268속 383종 49변종 5품종 2교잡종 등 총 439종류로 확인되었다. 산림청 지정의 희귀 및 멸종위기 식물은 천마, 뻐국나리, 삼백초, 태백제비꽃 등이 조사되었으며, 특산식물은 총 12종으로 전체 소산식물의 2.7%를 차지하였다. 귀화식물은 총 24종류로 전체 소산식물의 5.5%에 해당되었다. 서운산에서 조사된 자원식물의 용도별 구분은 식용자원식물이 239종류(54.4%), 약용 자원식물이 270종류(61.5%), 관상용 자원식물이 217종류(49.4%), 목재용 자원식물이 46종류(10.5%), 사료용 자원식물이 56종류(12.8%)로 구분되었다.

• 환경생물
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• 제38권4호
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• pp.497-506
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• 2020

이 연구에서 지리산의 낮은 고도에서부터 높은 고도까지 나비의 종다양성, 고도에 따른 생태적 특성, 우점종의 고도 분포에 대해 알아보았다. 나비는 총 5과 58종 769개체의 나비를 확인하였다. 낮은 고도와 높은 고도에서 종다양성은 높게 나타나고 있었다. 군집분석을 통해 3개(낮은 고도, 중간 고도, 높은 고도)로 구분하였으며, 낮은 고도에 비해 높은 고도에서는 서식지 범위가 좁은 종의 비율이 높았으며, 단식성 나비의 비율이 높게 나타나고, 다화성 나비의 비율이 높게 나타났다. 배추흰나비(Pieris rapae)는 600m 이하의 고도에서 서식하고, 큰흰줄표범나비(Argynnis ruslana), 먹그늘나비(Lethe diana)는 900 m 이상의 고도에 서식하며, 특히 큰흰줄표범나비(Argynnis ruslana)는 1,000m 이상에서 서식하고 있었다. 본 연구를 바탕으로 지속적인 모니터링 실시를 통해 지리산에서 기후변화에 따른 나비의 고도 분포 변화 및 다양성 변화 양상을 확인할 수 있을 것으로 생각된다.

• 한국수산과학회지
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• 제55권2호
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• pp.183-188
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• 2022

It is a difficult task to estimate parameters in even a simple stock assessment model such as a surplus production model, using only data about temporal catch-per-unit-effort (CPUE) (or survey index) and fishery yields. Such difficulty is exacerbated when time-varying parameters are treated as random effects (aka state variables). To overcome the difficulty, previous studies incorporated somewhat subjective assumptions (e.g., B₁=K) or informative priors of parameters. A key is how to build an objective joint prior of parameters, reducing subjectivity. Given the limited data on temporal CPUEs and fishery yields from 1999-2020 for common squid Todarodes pacificus, we built a joint prior of only two parameters, intrinsic growth rate (r) and carrying capacity (K), based on the resilience level of the population (Froese et al., 2017), and used a Bayesian state-space production assessment model. We used template model builder (TMB), a R package for implementing the assessment model, and estimating all parameters in the model. The predicted annual biomass was in the range of 0.76×10⁶ to 4.06×10⁶ MT, the estimated MSY was 0.13×10⁶ MT, the estimated r was 0.24, and the estimated K was 2.10×10⁶ MT.

• 한국균학회지
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• 제4권1호
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• pp.1-10
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• 1976

본연구(本硏究)는 우리나라에 발생(發生)하는 야생(野生)버섯의 분포상(分布狀)을 조사(調査)하기 위해 1972년(年)부터 1976년(年)까지 수원(水源) (광릉(光陵), 대관령(大關嶺), 지리산(智異山)) 및 한라산(漢拏山) 등지(等地)에서 일차적(一次的)으로 독성(毒性)이 강(强)한 버섯들이 속(屬)해있는 한국산(韓國産) 광대버섯속(屬)에 대(對)하여 시행(施行)한 결과(結果), 새로이 검토(檢討)된 한국미기록(轉國未記綠) 3종(種) [Amanita vaginata (Fr.) virt. var. puncta(Cleland & Cheel) Gilbert, A. flavipes Imai]이 첨부(添附)되어 광대버섯 25종(種)을 분류(分類)하였고, 광대버섯 25종(種)을 3아속(亞屬)에 배치기재(配置記載)하였다. 그외 (Rhodophyllus murrii(Berk. et Curt.) Sing. f. albus (Hiroe) Hongo이 한국미기록(轉國未記綠)으로 분류(分類)되었다. 한국미기록(轉國未記綠) 4종(種)에 대(對)하여 우리나라 이름을 명명(命名)하였다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2005년도 춘계학술대회
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• pp.693-696
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• 2005

KIGAM (Korea Institute of Geoscience and Mineral Resources) launched a new project to develop the low-temperature geothermal water in the area showing high geothermal anomaly, north of Pohang city, for large-scale space heating. Surface geologic and geophysical surveys including Landsat 1M image analysis, gravity, magnetic, Magnetotelluric (MT) and controlled-source audio-frequency MT (CSAMT), and self-potential (SP) methods have been conducted and the possible fracture zone was found that would serve as deeply connected geothermal water conduit. In 2004, two test wells of 1.1km and 1.5km depths have been drilled and various kinds of borehole survey including geophysical logging, pumping test, SP monitoring, core logging and sample analysis have followed. Temperature of geothermal water at the bottom of 1.5km borehole reached over $70^{\circ}C$ and the pumping test showed that the reservoir contained huge amount of geothermal water. Drilling for the production well of 2 km depth is on going. After test utilization and the feasibility study, geothermal water developed from the production well is going to be provided to nearby apartments.

• 한국습지학회지
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• 제10권2호
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• pp.1-14
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• 2008

본 연구에서는 신불산 고산 습지의 식물상 생태조사 결과를 중심으로 지속가능한 습지 생태계 관리와 : 현명한 이용방안을 수립하였다. 총 167종의 식물이 동정되었으며, 그 중 고산 습지식물인 진퍼리새가 우점종으로 규명되었고, 한국특산종인 개족도리, 감소추세종인 끈끈이주걱, 이삭귀개 등이 분포하고 있어 보존의 가치가 높다. 신불산 고산습지 습지 생태계를 보호하기 위해 국가 습지보호지역으로 지정, 습지 보호를 위한 감시 및 단속활동, 지속적인 모니터링 및 현명한 관리를 위한 다양한 방안을 모색하였다.

• The Korean Journal of Ecology
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• 제7권4호
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• pp.203-207
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• 1984

This report is an investigation of the revegetation and secondary succession in the burned area of Mt. Sanseung in Taegu region. The forest fire took place in December, 1977. The survey was conducted eight times, -three times from October 1, 1983 to October 3, the same year and five times from August 10, 1984 to August 15, the same year. The floristic compositions in the sampled sites constituted 25 kinds of vascular plants and 21 kinds in the burned area and the unburned area respectively. The biological type in both the burned and unburned areas was H-D1-R5-e type, which is generally common to other areas (Taegu, Kyungpook, Chung Buk and Kangweon areas). In the burned area dominant species were Carex humilisvar. nana, Arundinella hirata and Quercus serrata and on the other hand, in the unburned area Pinus densiflora, Carex humilis var. nana, Rhododendron mucrfonulatum var. ciliatum and Quercus serrata. The species diversity diversity index(H) and eveness index(e) of the burned area were higher than those unburned area. Degree of succession (DS) was 650 in the burned area at the 6th years after the fires and 962 in the unburned area. THe vegetation of the burned area was slowly recovered as of 1984 compared with each other. According to the analysis of the soil preperties, pH, available phosphorus and exchangeable potassium were increased, but organic matter, total nitrogen and total organic carbon were decreased. It is assumed that these results were due to the forest fire.

• 자원ㆍ환경경제연구
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• 제12권1호
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• pp.1-27
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• 2003

Urban forests have various environmental benefits, contributing to the quality of urban life. However, these values have been underestimated or never been reflected in the urban development planning in Korea. As a result, a number of forests in urban areas were either partly or wholly destroyed without their public's values being assessed explicitly. The objective of this paper is to estimate the economic benefits attached to Mt. Kwanggyo in the Capital Region using contingent valuation method, aiming to provide policy-makers with useful information to make an informed public decision in urban development planning. The survey was carefully designed and implemented to meet a number of recommendation rules suggested in the literature. The overall results show that the respondents well accepted the contingent market and would be willing to pay a significant amount for the proposed program of conserving the mountain. Total economic benefits for the population amounted to approximately 3.8 billion Korean won per year. This quantitative information can be used in cost-benefit analysis of urban development plans.

• 한국지구물리탐사학회:학술대회논문집
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• 한국지구물리탐사학회 2005년도 공동학술대회 논문집
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• pp.151-154
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• 2005

전 지구적 환경 모니터링을 위한 빙하 시추의 예비 탐사로서 남극 리빙스톤섬에서 GPR (Ground Penetrating Radar) 탐사를 실시하였다. 탐사지역은 세종기지가 위치한 킹죠지섬으로부터 남서쪽으로 80 km 위치한 곳으로 해발 340 m의 Mt. Charra 부근에 위치한다. 총 5개의 측선을 탐사했으며 3개의 반사법과 2개의 CMP (Common Midpoint) 방법을 실시하였다. 탐사결과 연구지역에서 빙하층은 전자기파의 속도와 반사단면의 특징으로 3개로 나누었다. 빙하의 두께는 $80{\~}110\;m$에 이르는 것으로 추정되고 층에 따라 빙하 내부에 다량의 물과 화산재를 포함하고 있는 것으로 해석된다.