• 농촌계획
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• 제10권2호
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• pp.1-6
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• 2004

This study tried to construct a direction in regional planning concerning the structural relationship between the ratio of aged population and the industrial characteristics. We investigated this structural relationship incorporating the aged population index and the number of classified companies. We applied diverse statistical analyses to understand the relationship. We classified the number of companies to reflect regional industrial characteristics using the principal component analysis. We applied a multiple regression model to understand the relationship between these two indices. The aged population index represents the degree of being old divided by the ratio of juvenile population and aged population. We found that such industries as manufacturing, service, and conveyance increase the ratio of juvenile population. However, industries such as tourism, waterworks, forestry, agriculture and etc. have a positive effect on the aged population index. In addition to these findings, we believe that the efficacy of this study is the possibility that can be used as the basic data when central or local autonomous entities need to adopt rural development planning.

• 농촌계획
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• 제24권3호
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• pp.127-135
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• 2018

In countries and regions population plays an important role. Recently the importance of population migration increased as population growth slowed. Researches on population migration are mainly focused on the analysis of the population movement factors and the regional structure analysis using the network analysis method. Analysis of regional structure through population movement is not enough to explain the phenomenon of migration of small cities and rural regions. In this study, to overcome the limit of previous studies the characteristics of the population movement rate according to the size of the population were analyzed. Also network analysis using the population movement OD (Origin and Destination) and population movement rate OD were conducted and the results of them were compared. As the results of analysis by the regional population scale, the population movement by population size showed a big difference in the areas with more than 100 thousand people and less than 100 thousand people. Migration to the outside of the province was the most frequent in regions with 30,000~50,000 people. The population migration rate network analysis result showed that the new area with large population inflow capacity was identified, which could not be found in the population movement network analysis because population movement number is small. The population movement rate irate is expected to be used to identify the central regions of the province and to analyze the difference in resident attractiveness.

• 한국자원식물학회지
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• 제26권5호
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• pp.557-565
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• 2013

국내에 분포하는 느티나무의 표현형의 변이를 확인하기 위하여 자생지 6곳을 대상으로 35가지 형태적 특징을 조사하였다. 분산분석 수행결과 20가지 정량적형질 중 16가지 형질이 집단간에 유의한 차이를 나타내는 것으로 확인되었다. 특히, '청주시 것대산' 집단이 20가지 정량적형질 중 9가지에서 최대값을 나타내었다. 주성분 분석 결과 측정항목들이 집단 간 차이를 나타내는데 적절하지 못함이 확인되었다. 군집분석을 수행한 결과 '남해군 미조리상록수림' 집단과 '양평군 용문산' 집단이 가장 가까운 그룹을 이루었으며, '청주시 것대산' 집단, '보은군 속리산' 집단, '대구광역시 팔공산' 집단, '함양군 상림' 집단 순으로 군집되었다.

• 대한지리학회지
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• 제39권1호
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• pp.88-101
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• 2004

본 연구는 재활용 생활계 폐기물의 수거경로를 살펴보고, 재활용품에 의한 수거유형과 지역특성과의 관계를 밝히는 것을 목적으로 한다. 분석결과는 다음과 같다. 인구규모가 크고 증가율이 높으며 제2차 산업 인구구성비와 재정자립도가 높은 지역에서는 종이류와 고철류가 주로 수거되고, 인구규모가 작고 증가율도 낮거나 감소하며, 제1차 산업 인구구성비와 농가율이 높은 농촌지역에서는 기타를 포함하여 고철류, 종이류, 병류 등의 다양한 수거가 나타난다. 이는 지역에 발달한 산업에 의해 재활용 생활계 폐기물의 수거유형이 다르다는 것을 의미한다.

• 한국산림과학회지
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• 제69권1호
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• pp.69-75
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• 1985

우리 나라의 해안도서지방(海岸島嶼地方)에 널리 천연(天然) 분포(分布)되어 있는 동백나무 (Camellia japonica)의 엽형질변이(葉形質變異)를 구명(究明)하기 위하여 집단간(集團間), 집단내(集團內)의 변이유형(變異類型)을 조사(調査)하였던 바, 그 결과(結果)를 요약(要約)하면 다음과 같다. 1) 엽장(葉長), 엽폭(葉幅), 엽면적(葉面積) 및 엽병장(葉柄長)의 특성(特性)에 있어서 죽도집단(集團)의 값이 가장 크며 제주도집단(集團)의 값이 가장 작았다. 2) 거치수(鋸齒數) 특성(特性)에 있어서는 완도집단(集團)의 것이 가장 많았으며 고창집단(集團)의 것이 가장 적었다. 3) Cork Wart의 수(數)에 있어서는 춘도집단(集團)의 것이 가장 많았고 도동집단(集團)의 것이 가장 적었다.

• 한국농공학회논문집
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• 제62권5호
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• pp.1-13
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• 2020

The empty houses' problem is important in the local revitalization and local sustainability, and these phenomenon caused by various factors of the region. The population and housing census data are the most effective data available to study this phenomenon by small regions. In this study, logistic regression and multiple regression analysis were performed to understand the effects of population, household, and housing characteristics on empty houses using population and housing census data. Also, the scale and direction of the effect of each characteristic in large cities, small cities, and rural areas were compared. As results, there was a slight difference between cities and province regions in the district and housing characteristic variables. In the comparison of Eup-Myeon-Dong, the affected variables were different in the Dong and Myeon areas. The significance of this study is to examine the effect of the characteristics of population and housing on the vacant houses and to confirm that the factors affecting different regions.

• 한국인구학
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• 제3권1호
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• pp.62-77
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• 1979

The purpose of this study is to explain the increasing trend of the aged population and its demographic characteristics. This study is based on the data for the aged population above 65 years old published by the Bureau of Statistics, Economic Planning Board. The increasing trend of the aged population has been analyzed and projected from 1955 to the year 2000. Some demographic charicteristics of the aged population including marital status, educational status and status of economic activities have also been analyzed in order to identify the problems associated with aging of population in Korea. The study offers the following conclusion. 1. The aged population index, the proportion of aged population to total population was 3.6 in 1975 and projected to be 6.6 in 2000. There has been steady increase of the aged population is reflected in changes of population structure. The proportional change of the aged population index was 100.0 in 1955, 109.0 in 1975 and 200.0 in 2000 respectively. 2. As for marital status of the aged population 77.6 per cent of male were married while 24.3 per cent of female were married in 1975. 22 per cent of male were widowed while it spouses died declined remarkable the mortality rate declined. 3. As the educational status of the aged, 77 per cent never attended school and 18 per cent attended from a primary school. This is very low and the number of educated men is higher than that of educated women. The rank ordering of schooling is city, Eub and Myeon in that aged. 4. The dependency ratio of the aged population was 5.9 in 1955, 6.1 in 1975 and will be 9.8 in 2000. It is gradually increasing as indicated above 20 per cent of aged population was economically active of these, they are employed in the following occupations as listed in order of the magnitude of the aged population employed. The employment status of the aged workers shows that a greater number of persons are self-employed than workers for another employer. In particular, temporary employees comprise 56.0 per cent of those employed.

• 한국경제지리학회지
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• 제16권3호
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• pp.445-457
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• 2013

본 논문의 목적은 우리나라 도시공간구조 변화를 시계열적으로 분석하고, 지역별 규모별 그 특성을 도출하는 것이다. 본 논문에서 도시공간구조는 인구밀도경사함수(population gradient curve)를 통해 분석하였고, 분석의 시간적 범위는 자료구축의 가능성을 고려하여 2000년부터 2010년까지로 설정하였으며, 공간적 범위는 광역시를 제외한 70개 도시이다. 본 논문의 분석결과를 요약하면 다음과 같다. 첫째, 우리나라 도시들은 평균적으로 도심 인구밀도는 감소하고, 인구밀도 경사도는 완만해져 도심 집중현상보다 외곽지역으로의 확산이 활발하게 진행되는 것으로 나타났다. 둘째, 비수도권 지역은 전국 평균과 동일한 형태의 공간구조 변화를 경험하였지만, 수도권 지역은 외곽지역뿐만 아니라 도심까지 인구밀도가 함께 높아지는 현상이 나타났다. 셋째, 인구 20만 이상의 중도시와 대도시에서는 도심 집중현상보다는 도시 외곽지역으로의 확산이 우세하게 나타난 반면, 인구 20만 미만의 소도시에서는 도심 인구밀도가 높아지면서 인구밀도 경사도의 절댓값이 커지는 도심 집중현상, 즉 압축도시의 특성이 나타나는 것으로 분석되었다.

• 수산경영론집
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• 제36권1호
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• pp.81-101
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• 2005

This article is to estimate the fishing frequency function in Korean recreational fishery with respect to socio-economic characteristics of anglers. First, the study described the characteristics of the entire angler population on the view points of 9 socio-economic variables. And then, the study divided the total angler population into three groups of in-land, sea, and mixed angler populations in order to investigate the differences in their characteristics. The study could confirm the existence of differences in regions, size of regions, and educational levels between the in - land and the sea angler populations by testing heterogeneity in the frequency table. The fishing frequency function is estimated using Poisson regression model in order to accomodate the count data(non-negative discrete random variable) aspects of the fishing frequency. However, the model specification error is found due to overdispersion of data. The model exhibits the lack of goodness of fit. The negative binomial regression model is adopted to cure the overdispersion of the data as an alternative estimation methodology. Finally, the study can confirm overdispersion does not exist in the model any more and the goodness of fit improved significantly to the reasonable level. The results of estimation of fishing frequency population modeled by the negative binomial regression models are following. The three variables of region, sex, and education have effects on the decision making process of fishing frequency in the case of in-land recreation fishery. On the other hand, the three variables of sex, age, and marriage status do the same job in the case of sea angler population. Among the left-over variables, both income and use of Internet variables now affect on the process in mixed angler population. Finally, the results of whole angler population show that all of the previous variables are proven to be statistically significant due to the summation of data with all three sub-groups of angler population.

• 한국자원식물학회지
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• 제25권1호
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• pp.72-79
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• 2012

Vaccinium oldhami Miq. is a Korean native tree, which is deciduous and shrub tree with broad leaf. It grows 1~4m in height generally. Ecologically, this tree grows well in shady place even in barren soil. Also, the tree has resistance to cold and dry, which tend to form a little community. This research investigates quantitative morphological characteristics of leaf and fruit among the V. oldhami in South Korea and then considers its relationship on the basis of raw data among the 10 populations. This study will give us invaluable information about growing conditions, reasonable management and breeding by selection of V. oldhami in South Korea. The main results obtained from this study are summarized as follows; Leaf size of Mudeung population was larger than other populations. Naebyeon population was smaller in size of the leaf than other populations. Anmyeondo population was larger in fruit characteristics compared with other populations and Deogyu population was the smallest among populations. According to cluster analysis based on the leaf and fruit morphological characteristics, the natural V. oldhami populations were classified into four groups such as the first group of Kumo population, the second group of Mudeung population, the third group of Anmyundo, Daedun, Doolyun population and the fourth group of the other five populations.