• 한국지역지리학회지
• /
• 제22권4호
• /
• pp.761-773
• /
• 2016

이 연구는 1800년대 중반부터 대한제국까지의 시간 범위에서 한반도를 관찰한 여러 서구인들의 기록들을 인구지리학적 관점에서 고찰한 것이다. 주요 연구 내용은 다음과 같다. 첫째, 여러 서구인들에 의한 기록 중에서 한반도 인구에 관한 내용을 포함하고 있는 약 20여 편의 문헌들을 찾았고, 둘째 해당 문헌에서 한반도 인구와 관련된 서술들을 확인하였는데, 주요 내용은 한반도 전체 인구수, 지역별 인구수, 분포, 밀도, 그리고 이동에 관한 것이었다. 마지막으로 당시 그들이 인구를 매개로 한반도와 그 위의 삶의 모습들을 어떻게 인식하고 있었는지를 해석하였다.

• 한국인구학
• /
• 제11권1호
• /
• pp.131-145
• /
• 1988

1960년 이래 한국사회는 빠른 속도로 인구변천을 경험했다. 인구변천으로 인한 인구구조의 변화는 한국사회의 전반적인 현상이기는 하지만, 특히 이 기간중 많은 인구를 도시로 내보내지 않으면 안되었던 농촌지역에서 그 변화의 폭이 더욱 클 수밖에 없다. 이와 같은 관점에서 이 연구는 주로 최근 농촌사회에서 관찰되는 인구구조의 왜곡현상이 주로 농촌-도시로의 인구이동에 원인이 있으며, 지역단위별로 차별적인 영향을 받을 것이라는 점에 착안하여 농촌의 지역단위별 인구특성에 따른 인구분포의 변화를 비교분석하는 데 초점을 두었다. 이 연구결과 밝혀진 결과를 종합해 보면 농촌은 각 지역단위(군)별로 인구구조상의 격차가 매우 크다는 것이 확인되었다. 따라서 각 지역단위별 인구구조의 변화로 예상되는 농촌의 문제는 군부나 면부의 총괄분석을 통해 알려진 농촌 문제보다 각 지역단위별로 분석할 때 알 수 있는 농촌문제가 훨씬 더 심각함을 알 수 있었다. 이 결과는 농촌을 위한 정책수립 과정에서 지역단위별로 특수성이 고려될 수 있어야 한다는 점을 말해준다.

• 한국농촌건축학회논문집
• /
• 제13권2호
• /
• pp.39-46
• /
• 2011

The agricultural population, the farming, the agriculture of our country has been decreased more rapidly than those of other countries. Also, the changing speed of the rural village in Korea has shown a similar trend. By considering the urbanization process and migration state caused by the economic growth and the increasing level of relative poverty in comparison with the urban area, it has been necessary to go through the impoverishment and slum-orientation of the rural area. In our country, the rural village became old age. So, the collapse is predicted to a population shortage if such trend is continued in the village society. according to investigate, Many urban peoples have opinion that migrates to a farm village. but those not migrate to rural community. The mainly reason is low life environment. therefore it is need the plan that the urban people migrates to a rural village, and must have the plan to be engaged in the agriculture. lt was the rural-fishing New Town development project that started in 2009 for 30~40 years's urban people. This study is about characteristic and improvement of Rural-Fishing New Town development project.

• 한국가시화정보학회지
• /
• 제16권2호
• /
• pp.38-44
• /
• 2018

Cellular jamming phenomenon, defined as a kinetic arrest, is a commonly observed event in dense cell aggregates in epithelial tissues. Cells lose their motility when the density of the cell population becomes too high. Yet, not much is known about how the jamming occurs and how it influences individual cells in the population. In this study, we investigated the mechanisms during the formation of the jammed state by visualizing various dynamic components such as velocity, traction, and intercellular stress. The visualized properties exhibited interrelated features in similar time domains that can be categorized into specific stages, namely migrating, transitional and steady state. During the migrating stage, cells generated spatially correlated tractions and migrations at the collective migration step and lost these properties becoming a transitional stage. These stepwise analyses presented correlative components which are expected to adjust for explaining the detailed mechanisms of cellular jamming.

• 한국인구학
• /
• 제5권1호
• /
• pp.4-16
• /
• 1982

The Korean Population Control Program has been implementing under the jurisdiction of the Ministry of Health and Social Affairs through an existing network of health centers. This arrangement was successful in bringing population growth down to targeted level by the end of the Fourth Five Year Economic Planning, 1981. It is expected, however, that future goal will be harder to reach due to difficulty of reducing traditional family size norms further and to the projected increasing the number of eligible couples as the past Korean war baby boom generation enters the reproductive activity in the next few years. The recognition of the need for modification of population policy is increasing. The 1980 census shows that the total number of population reached approximately 38.5 million with 1.57 per cent of the growth rate. It was projected that the size of Korean Population will reach around 42 million and 51 million in 1986 and 2000 respectively. Furthermore, there is some argument as to whether decline in the birth rate in Korea is too slow to meet government target. Hence, a new development of population policy and greatly increased amount of effort will be needed in order to achieve Zero Population Growth Rate before the year 2050. The development of future national population policy and its related area are recommended as follow: 1. It is highly recommended that the population planning law governing both vital events of birth and death and population migration should be legislated. 2. The National Population Policy Council, Chaired by Deputy Prime Minister should be activated to implement and coordinate population program within ministries. 3. Responsible organization of population and family planning program should be established as a Bureau unit at central government level. 4. For the improvement of national vital registration, an existing system should be studied and developed.

• 생태와환경
• /
• 제46권3호
• /
• pp.319-331
• /
• 2013

Recent climate change, which is mostly ascribed to anthropogenic activities, is believed to be a major factor leading to biodiversity decreases and ecosystem service deteriorations. I have reviewed recent studies on climate change effects for many ecological processes involved with plants, in order to improve our understanding of the nature of ecological complexity. Plants in general have better growth and productivity under high levels of $CO_2$, although the long term effects of such $CO_2$ fertilizers are still controversial. Over the last 30 years, the Earth has been greening, particularly at higher latitudes of the Northern Hemisphere, perhaps due to a relaxation of climatic constraints. Human appropriation of net primary productivity (NPP), which corresponds up to 1/3 of global NPP, is ultimately responsible for climate change and biodiversity decreases. Climate change causes phenological variations in plants, especially in regards to spring flowering and fall leaf coloring. Many plants migrate polewards and towards higher altitudes to seek more appropriate climates. On the other hand, tree mortality and population declines have recently been reported in many continents. Landscape disturbance not only hinders the plant migration, but also makes it difficult to predict the plants' potential habitats. Plant and animal population declines, as well as local extinctions, are largely due to the disruption of species interactions through temporal mismatching. Temperature and $CO_2$ increase rates in Korea are higher than global means. The degree of landscape disturbances is also relatively high. Furthermore, long-term data on individual species responses and species interactions are lacking or quite limited in Korea. This review emphasizes the complex nature of species responses to climate change at both global and local scales. In order to keep pace with the direction and speed of climate change, it is urgently necessary to observe and analyze the patterns of phenology, migration, and trophic interactions of plants and animals in Korea's landscape.

• 한국학교보건학회지
• /
• 제12권1호
• /
• pp.97-107
• /
• 1999

The purpose of the study was to ascertain the trends of future circumstances in primary education along with population change. These trends, which are subject to change in population and structure, have a great impact on the size and characteristics of primary school-aged children. Accordingly, it is imperative for the government to plan for future conditions involving primary education. The major findings of the study were as follows: 1. In the long-term primary school children aged 6-11, which accounted for 17.7% of the total population in 1970, will decline to 8.6% by the year 2000, 6.9% in 2020 and 6.4% in 2030. This drastic reduction in fertility rate is a direct result of pressure by the government to control population. 2. In 1996, the total number of classes in primary schools rose to 106,594. In the future, these numbers will actually decline. By 2003 the total number of classes will peak at 142,605, but until then drop off to 112,288 by 2030-a decrease of over 6,000. 3. The actual number of primary schools in 1997 totaled 5,721. This figure will reach its highest peak, 5,942, in 2003, but it is expected decrease later after declining by 1,263, it will bottom out at 4,679 in 2003. 4. The number of teachers at primary schools increased from 101,095 in 1970, 119, 064 in 1980, 136,800 in 1990 to 138,369 in 1995. Accordingly this means that the ratio of students to teaching staff changed for the better. By the year 2005, if teachers of specialty subjects (music, art, English, physical education) are assigned to every primary school with over 18 classrooms and the number of students per class is 30, it should improve educational surroundings. This is because it is expected that the population of primary school children will continue to grow until 2003 and then decrease. Thus, there is a need to maintain the number of primary school teachers between the years 2003 and 2030 so that the ratio of students to teachers will be reduced to 1/20.25. In considering factors related to migration which influence conditions of education, it is evident that changes have already begun. In the suburbs of Seoul, population shifts are causing overcrowding in classrooms. The government believes it would be inefficient to invest in education because fluctuating migration figures make it impossible. Accordingly, we have to be concerned about stabilizing the population throughout the entire country.

• Proceedings of the National Institute of Ecology of the Republic of Korea
• /
• 제3권4호
• /
• pp.191-198
• /
• 2022

Natural habitats of the Korean long-tailed goral (Naemorhedus caudatus) have been fragmented by anthropogenic activities in South Korea in the last decades. Here, the individual identity, genetic variation, and population differentiation of the endangered species were examined via the multiple-tube approach using a non-invasive genotyping method. The average number of alleles was 3.16 alleles/locus for the total population. The Yanggu population (1.66) showed relatively lower average number of alleles than the Inje population (3.67). Of the total 19 alleles, only seven (36.8%) alleles were shared by the two populations. Using five polymorphic out of six loci, four and six different goral individuals from the captive Yanggu (n=24) and the wild Inje (n=28) population were identified, respectively. The allele distribution was not identical between the two populations (Fisher's exact test: P<0.01). A considerably low migration rate was detected between the two populations (no. of migrants after correction for size=0.294). Additionally, the F statistics results indicated significant population differentiation between them, however, quite low (F_ST=0.327, P<0.01). The posterior probabilities indicated that the two populations originated from a single panmictic population (P=0.959) and the assignment test results designated all individuals to both populations with nearly equal likelihood. These could be resulted from moderate population differentiation between the populations. No significant evidence supported recent population bottleneck in the total Korean goral population. This study could provide us with useful population genetic information for conservation and management of the endangered species.

• 한국지역지리학회지
• /
• 제11권6호
• /
• pp.571-584
• /
• 2005

우리나라의 과도한 수도권 인구집중은 지역불균형발전의 원인으로 최근 지역인적자원육성 측면에서 중요한 문제로 제기된다. 인구이동은 지리적 이동임과 동시에 사회적 이동으로 수도권으로의 인구이동을 유출지역 입장에서 접근해 보면 유출지역의 배출요인과 이주자의 선별성으로 구분지어 검토해 볼 수 있다. 수도권으로의 이주에 이들이 미치는 상대적 중요도를 보면 전체적으로 연령이 가장 중요하게 나타나며, 제조업 비율, 농촌/도시가 이전에는 중요하였으나 점차 최근으로 오며 교육수준, 노동직 비율, 제조업 비율, 그리고 실업률이 중요한 지역 특성 변수로 등장하고 있다. 불균형발전이 심화되어 있는 우리나라의 실정에서 두뇌유출은 현실로 나타나고 있기에 이러한 결과는 지역차원의 인재육성과 더불어 지역내에서 양질의 취업기회를 통한 이들 인재의 확보를 위한 고려가 필요함을 보여주고 있다.

• 대한지리학회지
• /
• 제52권1호
• /
• pp.105-122
• /
• 2017

이 연구는 1930년 국세조사 인구자료를 기초로 14개 부, 41개 지정면을 도시지역으로 설정하여, 도시로의 인구이동과 그 출발지 유형, 입지를 분석하여 당시 도시화 과정을 이해하는 것을 목적으로 하였다. 이를 위해서 당시 도시지역에 유입된 인구의 출생지를 출발지로 간주하고 그 유형과 입지를 우선 분석하였다. 분석결과, 1930년의 부와 지정면은 유입인구의 출발지에 따라 전국적 범위의 출생자들이 장거리 이동한 곳, 인접지역 출생자들이 단거리 이동한 곳 및 두 가지의 중간적 성격을 가지는 곳 등으로 구분될 수 있었다. 그리고 일제의 효율적 식민 지배를 위해 새롭게 개발된 도시일수록 전국적 장거리 이동자의 유입지라는 성격이 두드러졌지만, 전통적인 도시기능을 수행했던 곳들도 주변 인구가 유입되면서 지역의 중심도시로 빠르게 성장하였다. 이에 대해서 이 연구는 식민 도시화라는 정주체계와 전통적 정주체계의 이중적 구조가 이중적 도시화와 인구이동을 발생시켰을 가능성이 있음을 제안한다.