• 한국산림과학회지
• /
• 제32권1호
• /
• pp.36-63
• /
• 1976

1974년(年) 천연(天然)소나무집단(集團)에 대한 유전적변이(遺傳的變異)를 분석(分析)하고져 먼저 경북(慶北) 청송군(靑松郡) 소재(所在) 주왕산(周王山)소나무림(林), 충남(忠南) 서산군(瑞山郡) 소재(所在) 안면도(安眠島) 소나무림(林), 그리고 강원도(江原道) 평창군(平昌郡) 소재(所在) 소나무림(林)을 대상(對象)으로하여 각(各) 집단(集團)에서 되도록 소면적(小面積)의 범위내(範圍內)에 서있는 소나무 개체(個體)를 각(各) 20주(株)씩 총 60주(株)를 택(擇)하여 그 모수(母樹)에 대한 형태학적(形態學的) 특성(特性)등을 조사측정(調査測定)하고 집단간(集團間)에 보이는 차이(差異) 그리고 한 집단내(集團內)에 있는 각개체수목(各個體樹木)의 형질(形質)을 조사보고(調査報告)한바 있다(제일보고문(第一報論文). 1974년(年) 가을에 가계별(家系別)로 종자(種字)을 채취(採取)하여서 가계별(家系別) 및 산지별(産地別)의 차이(差異)를 분석(分析)하고 동시(同時)에 그 종자(種字)를 파종하여서 1-0묘(苗) 및 1-1묘(苗)를 대상(對象)으로 생장인자(生長因子)에 대한 측정(測定)을 하고 그 유전력(遺傳力)을 계산(計算)해 보았다. 그밖에 엽록소함량(葉綠素含量) 또는 monoterpene등의 함량(含量)의 차이(差異)를 분석(分析)해 보았다. 종자(種字)의 형태학적(形態學的) 특성(特性)에 있어서는 집단간(集團間) 또 가계간(家系間)에 유의차(有意差)를 보이지 않는 것도 있었으나 대체(大體)로 유의차(有意差)가 인정(認定)되었다. 그리고 각형질간(各形質間)의 상관(相關)을 보았는데 구과폭(毬果幅)과 종자익(種字翼)의 폭(幅), 구과장(毬果長)과 종자익(種字翼)의 길이간(間), 그리고 구과(毬果) 생중량(生重量)과 종자중량간(種字重量間)에는 정(正)의 상관(相關)이 보였다. 묘고(苗高)와 근원경(根元徑)의 성장(成長)에 있어서는 가계간(家系間) 그리고 집단간(集團間)에 차이(差異)가 인정되었다. 묘고(苗高)의 유전력(遺傳力)은 집단(集團)의 평균치(平均値)를 가지고 분석(分析)하였다. 즉 집단(集團)에 관계(關係)되는 분산(分散)을 유전분산(遺傳分散)으로 보고서 유전력(遺傳力)을 계산(計算)해 보았는데 1-0묘(苗)의 묘고(苗高)에서는 0.29, 1-1묘(苗)에서는 0.14가 그리고 근원경(根元徑)에 있어서는 1-0묘(苗)는 0.15, 1-1묘(苗)에서는 0.06이였다. 기공열수(氣孔列數)에 있어서는 집단간차이(集團間差異)가 있었으나 거치밀도(鋸齒密度)에는 차이(差異)가 없었다. 침엽(針葉)의 특성(特性)에 관(關)해서는 모수(母樹)와 차대간(次代間)에 상관(相關)이 없었다. 엽록소함량(葉綠素含量)은 집단간차이(集團間差異)는 보였으나 가계간차이(家系間差異)는 없었다. monoterpene의 성분(成分)에 있어서는 myrcene과 ${\beta}$-phellandrene의 함량(含量)으로 집단차(集團差)를 볼 수 있었다.

• 한국환경복원기술학회지
• /
• 제13권3호
• /
• pp.84-93
• /
• 2010

This study was carried out to analyze the vegetation properties, soil characteristics and ordination of Leontice microrhyncha population in South Korea. The Leontice microrhyncha population was classified into Quercus mongolica dominant population, Morus bombycis dominant population, Fraxinus mandshurica population and Leontice microrhyncha typical dominant. The Leontice microrhyncha population was located at an elevation of 633m to 1,336m in Korea. In the study sites, soil organic matter, total nitrogen, available phosphate, exchangeable potassium, exchangeable calcium, exchangeable magnesium, cation exchange capacity and soil pH were 8.40~10.58%, 0.42~0.61%, 14.15~25.07mg/kg, 0.44~0.59cmol$^+$/kg, 2.35~6.33cmol$^+$/kg, 0.35~0.98cmol$^+$/kg, 26.04~33.48cmol$^+$/kg and 4.69~5.32 respectively. Morus bombycis dominant population was found in the low elevation and gentle sloped area that has high percentage of phosphoric acid and less percentage of total nitrogen, exchangeable calcium, exchangeable magnesium than other dominant population. Fraxinus mandshurica dominant population and Leontice microrhyncha typical population were found in the comparatively high elevation area that has low percentage of phosphoric acid and high percentage of total nitrogen, exchangeable calcium, exchangeable magnesium. Quercus mongolica dominant population was found in the medium elevation area that has medium percentage of total nitrogen, exchangeable calcium, exchangeable magnesium.

• 한국환경복원기술학회지
• /
• 제12권1호
• /
• pp.92-100
• /
• 2009

This study was carried out to investigate vegetation structure and soil properties of Angelica gigas population distributed in Jeombongsan, Bangtaesan, Odaesan, Gyebangsan and Jirisan. From August 2007 until September 2008, 5m${\times}$5m quadrat was established in native area of Angelica gigas in order to record a dominants and coverage, and soil factors at 20 sites. It was found that the altitude in the distributed areas for Angelica gigas population was 710m or more. Angelica gigas population was classified into Parasencio auriculata var. kamtschatical dominant population, Pseudostellaria palibiniana dominant population, Isodon excisus dominant population and typical dominant population. In the site of study, soil pH, electrical conductivity, soil organic matter, available phosphorous, and exchangeable potassium, exchangeable calcium, exchangeable magnesium, exchangeable natrium concentration and total nitrogen were ranged from 5.1~6.2, 0.1~0.79dS/m, 2.21~22.11%, 9.56~37.97mg/kg, 1.85~23.88cmol+/kg, 0.21~1.18cmol+/kg, 1.07~5.09cmol+/kg, 0.04~0.14cmol+/kg and 0.09~1.04% respectively. The Parasencio auriculata var. kamtschatical dominant population was found in area of high altitude and had high slope degree. But Pseudostellaria palibiniana dominant population was found in area of low altitude and low slope degree. Isodon excisus dominant population was found to have higher soil pH and exchangeable potassium concentration than the other dominant population.

• 보건행정학회지
• /
• 제14권2호
• /
• pp.1-16
• /
• 2004

The study purpose was to find which factors affect selection of hospital network types. This study used the 1998 American Hospital Association Annual Survey Database from Health Forum. Among these U.S. hospitals, the researcher selected hospitals located in Metropolitan Statistical Areas. Therefore the final observation cases for analysis are 1,971 Metropolitan Statistical Area hospitals in the United States. To identify significant variables influencing hospital network types, the study used proportional odds logistics regression model on population size, Health Maintenance Organization penetration rate, and market competition rate of area including a hospital, types of hospital ownership, hospital bed size, proportion of Medicare patients and Medicaid patients in total hospital patients, and occupancy rate. Contrary to conventional wisdom, selection of hospital network types was influenced by population size of area which a hospital located, types of ownership, hospital bed size, and proportion of medicare patients rather than Health Maintenance Organization penetration. Population size 1,000,000-2,499,999 had the highest probability of selecting type IV (clinical-vertical integration) from an independent hospital, and a religious group owned hospitals and for-profit owned hospitals had the highest probability of selecting Type IV (clinical-vertical integration) from an independent hospital. A bed size had positive relation on selecting Type IV (clinical-vertical integration) from an independent hospital. Unlikely general belief that the selecting types of hospital network was determined by the change of health insurance policy such as Health Maintenance Organizations and Preferred Provider Organizations, the types of hospital network were influenced by community characteristics such as population size, and hospital characteristics.

• 한국인구학
• /
• 제31권2호
• /
• pp.133-155
• /
• 2008

본 연구는 강원도의 인구이동 유형과 특성을 밝히는 데 그 목적이 있다. 이를 위해 본 연구는 우선 강원도 인구분포의 변화 양상을 검토하였다. 연구결과 강원도 18개 시군 중 춘천과 원주를 제외한 시군에서 모두 인구감소를 겪고 있는 것으로 나타났다. 춘천의 경우 도청소재지와 영서북부권의 거점도시로서의 역할을 담당하고 있다는 점에서 그 이유를 찾을 수 있다. 앞으로 경춘전철 및 고속도로 건설에 따른 서울 및 수도권과의 접근성이 향상될 경우 춘천의 인구는 지속적으로 증가할 것으로 예상된다. 원주시는 교통망이 전국적으로 연결된다는 점과 최근 기업 도시, 혁신도시에 선정되면서 발전가능성이 높게 인식되면서 인구를 끌어들이고 있다. 이에 반해 강릉은 거점도시로서의 역할이 점차 약화되는 특성을 보이고 있다. 이와 함께 본 연구는 강원도의 인구이동 유형을 6개 그룹으로 분류하여 검토하였으며, 이를 다시 시기별로 분석하였다. 분석결과 $2000{\sim}2003$년 사이에는 중간거점도시가 춘천, 속초, 동해, 강릉 등 5곳 이었으나, $2004{\sim}2007$년 사이에는 원주, 춘천 등 2곳만이 중간거점도시로서의 기능을 유지하고 있는 것으로 나타났다. 속초와 동해는 서울, 경기도로 주로 옮겨가는 특성을 보였으며, 강릉은 서울, 경기와 춘천 및 원주로 동시에 유출되는 특성을 보였다. 이와 함께 분석결과는 조사기간 중 전반기에는 중간거점도시보다 수도권으로의 인구이동이 많았으나 후반기에 들어서 거점도시인 춘천, 원주로 옮겨간 인구수가 거점도시에서 수도권으로 간 인구수보다 더 많은 특징을 보였다. 이는 중간거점도시의 영향력이 점차 커지고 있음을 보여주는 것으로 이해 될 수 있다.

• 수산해양기술연구
• /
• 제49권4호
• /
• pp.440-448
• /
• 2013

Estimations on population ecological parameters of the small yellow croaker, Larimichthy polyactis in Korean waters, were calculated using catch data based on coastal and offshore drift gillnet fishery and biological data from 2010 to 2012. The population ecological parameters included survival rate, instantaneous coefficient of natural and fishing mortality and age/length at first capture. The survival rate (S) of the small yellow croaker was estimated to be 0.20 from catch curve method. The instantaneous coefficient of natural mortality (M) was estimated to be 0.46/year with Alverson and Carney method. The instantaneous coefficient of total mortality (Z) was 1.611/year, used to be transformed the survival rate and the instantaneous coefficient of fishing mortality (F) were 1.153/year. The length at first capture ($L_c$) was 19.1cm by Pauly method, and the age at first capture ($t_c$) was 1.303 years of the small yellow croaker by the coastal and offshore drift gillnet fishery.

• 한국산림과학회지
• /
• 제94권2호통권159호
• /
• pp.117-120
• /
• 2005

This study was conducted to estimate population size and investigate habitat characteristics for the conservation and management of Amur goral Nemorhaedus caudatus raddeanus in DMZ (Demilitarized Zone) of Gangwon Province in South Korea from November 2003 to May 2004. The Amur gorals counting were carried out by assistance of military soldiers who guards the southern boundary of DMZ. Four hundred sixty individuals were estimated as total population size in DMZ of Gangwon Province. Deciduous forest, rocky area and coniferous forest were dominant land cover types in habitat of Amur goral. DMZ and its vicinity of Gangwon Province are very important areas for the conservation of this species. It is needed to establish management plan for the conservation of Amur goral and their habitats in DMZ.

• 대한지역사회영양학회지
• /
• 제5권3호
• /
• pp.529-536
• /
• 2000

The major purpose of this study was to identify the differences in priorities of nutrition service needs between the service provider and consumers (general population). Identification of the personal characteristics which influence the priorities of nutrition service needs among the general population was also examined. An interview survey using a questionnaire was conducted to collect the data required for analysis. The questionnaire included the priorities of various nutrition service needs as well as the personal characteristics of the study subjects. The study subjects were 300 residents over 40 years of age, and 15 health workers representing health center service personnel in Kyounggi province. Wilcoxon Rank Sums test were adopted to analize the differences in priority between the service providers and consumers. The results showed that priority of nutrition service needs for provider were significantly different from that of consumer. Gender, age, family type, and education levels of the population were the significant factors affecting the differences in priorities for nutrition service needs among consumers (general population). Out of the results, it could be suggested that consumers need should be considered in developing nutrition services to promote nutrition services utilization in health centers. The results may also suggest that one of the causes for the low utilization rate of nutrition services in health centers was the provider oriented program development regardless of the needs of consumers.

• 대한인간공학회지
• /
• 제33권5호
• /
• pp.387-394
• /
• 2014

Objective: The purpose of this study is to survey trend and the real state of ageing population in UK, and its charge organizations, relevant policies and studies. Background: As in other countries, UK population is ageing and people aged 65 or over account for about 17% of population in UK. Considering this ageing population, there are varying basic studies and policies for older people in UK. Method: First, the author consulted ageing and its policies in UK with some faculties in an UK university. Next, based on the results of consultation, wide literature survey was conducted, which includes papers in relevant academic journals, publications and website surfing. Results: A number of basic studies for surveying status and characteristics of older people as well as simple population trend for them have been conducted in UK. Healthcare services are free for all UK residents, and varying social care services including equipment, home and residential cares, financial support, etc., are provided by local governments. Cost of social cares is means-tested and is not free for everyone. There are a number of governmental or non-profit organizations dedicated to help older people access social care services or to financially fund research projects older people. Conclusion: There are more basic studies, and healthcare and social care services for older people in UK, compared to Korea. Application: It would be useful as basic data for establishing effective polices for old people in Korea.

• 보건교육건강증진학회지
• /
• 제6권2호
• /
• pp.58-65
• /
• 1989

This study analyzes the structural characteristics of rapid changes in Korean population, using the data of a census and other data on the changes in the population. Major findings are : 1. During 1950~1955, annual increase rate of population was about 1.02%, about 2.88% during 1955~1960, and 1.36% during 1980~1985. It is expected to decrease to 0.07% during 2015~2020. 2. Major Age Composition 0~14 is expected to reduce to 16.5% in 2020 from 41.2% in 1955, while the ratio of population aged 15~64 is expected to increase to 72.1% from 55.5%. Furthermore, for the population group of age 65 and over is expected to increase from a mere 3.3% to 11.4%. 3. The aging index of population is expected to increase to 69.5 in 2020 from 8.0 in 1955 and so the old dependency ratio is expected to 15.9 from 6.0 4. The median age is expected to 40.2 in 2020 from 19.0 in 1955. 5. In 2020 the child-woman ratio is expected to reduce to 22.3 from 64.7 in 1955. 6. In 2020 the age index of 0~4 is expected to 57.4 from 169.4 in 1955, and the age index of 65~69 to 261.7 from 95.6 on the contrary.