• 제목/요약/키워드: urbanization and industrialization

검색결과 333건 처리시간 0.02초

디지털지적 구축을 위한 국토조사의 최적화 모형 (Optimized model of Land survey for Digital Cadastre)

  • 이정빈;황보상원;김감래
    • 한국측량학회지
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    • 제28권4호
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    • pp.395-402
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    • 2010
  • 도시화 산업화에 따른 부동산의 가치증대 및 다양한 토지이용으로 지상과 지하를 막론하고 토지이용의 중요성이 증대됨에 따라 수요자에 대한 정확한 토지관련 정보의 실시간 제공을 목적으로 고도화된 측량기술을 이용한 디지털지적으로의 전환을 모색하고 있다. 그러나 우리나라 지적제도는 토지 임야조사사업을 짧은 기간에 구축하여 현재까지 이용되어 오면서 전쟁으로 인한 국토의 황폐화, 산업화에 따른 무질서한 국토개발에 의한 다양한 토지이용으로 훼손 또는 신축된 지적공부를 정비하지 못한 채 사용하여 옴에 따라 현재 많은 불부합지를 양산하여 사회문제의 하나로 대두되고 있다. 따라서 정부 부처에서도 불부합지 해소 및 지적조사를 위한 시범사업 실시 등 많은 노력을 기울이고 있으며 우리나라에 적합한 모형이 필요하게 되었다. 본 연구에서는 현재까지 추진되고 있는 지적조사의 현황을 살펴보고 국토조사의 유형별 최적화 모형을 제시하고자 하였다.

WRF / ENVI-met 통합모형을 적용한 도시 공원의 경계 조건 및 열역학적 영향 분석 연구 (Study on the Impacts of Lateral Boundary Conditions and Thermodynamics of Urban Park using Coupling System of WRF / ENVI-met)

  • 이태진;유정우;이화운;원효성;이순환
    • 한국환경과학회지
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    • 제26권4호
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    • pp.493-507
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    • 2017
  • Since the late 20th century, the urbanization in Korea has been rapidly increasing, especially in major cities like Seoul, as a result of industrialization. One of the aspects of urbanization is coating the surfaces with impervious concrete or asphalt that water cannot penetrate. In addition, various urban, such as urban heat islands, which also have a great impact on the urban environment, occur within the cities. Therefore, the urban environment is gradually becoming hot and dry, and the need for more urban parks to compensate for these negative impacts is growing. Thus, several numerical studies have been conducted to assess these problems using coupled Numerical Weather Prediction (NWP) and Computational Fluid Dynamics (CFD). In this study, an experiment was conducted to determine the accuracy of the area of the input field using Weather Research and Forecasting (WRF) model, and applying the more accurate input field to a numerical simulation using ENVI-met, in order to investigate the effect of urban parks on the thermal comfort. The results showed that an input field with a larger area is more accurate than that with a smaller area, because the surrounding terrain and cities are considered in details in the experiment with the larger area. Subsequently, the more accurate input field was used in ENVI-met, and the results of this simulation showed that the presence of the urban park increased the thermal comfort and improved the humidity conditions.

GIS를 이용한 한반도 기온의 시·공간적 분포패턴에 관한 연구 (Research on the Spatio-temporal Distribution Pattern of Temperature Using GIS in Korea Peninsular)

  • 김남신
    • 한국지형학회지
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    • 제15권2호
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    • pp.85-94
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    • 2008
  • 본 연구는 한반도 기온변화를 분석하여 기후대의 변화와 도시지역에서의 기온분포의 시 공간적 특성을 파악하고자 하였다. 분석에 사용된 자료는 1974년부터 2007년까지 34년간 남북의 기상관측소에서 수집된 자료를 활용하였다. 기온은 고도와 선형관계를 갖기 때문에 고도별 월별 기온단열감율을 계산하여 역거리가중법으로 500m 해상도의 분포도를 작성하였다. 도시화 지역에서의 자료는 연도별 인구변화와 기온변화를 비교 분석하였다. 기온의 연간상승율은 $0.0056^{\circ}C$로 계산되었는데, 1974년과 2107년에는 $2.14^{\circ}C$나 상승한 것으로 나타났다. 기온변화에 따라 온량지수로 구분한 기후대는 남부기후구가 90년대 이후 위도가 크게 상승하는 것으로 분석되었다. 도시지역의 평균기온상승은 80년대와 90년대에 $0.5-1.2^{\circ}C$ 상승한 것으로 분석되었다. 기온이 상승한 도시지역은 서울과 광역시 그리고 시단위 지역에서 나타났는데 이들 지역은 80년대와 90년대에 인구증가와 더불어 도시화와 산업화의 속도가 빠르게 진행된 지역이다. 북한의 경우는 평양, 안주시, 개천시, 혜산시에서도 인구증가와 더불어 기온상승 효과가 있는 것으로 나타났다. 도시의 기온상승은 식생에도 영향을 미쳐 소나무의 경우 겨울눈의 이차생장이 늦가을에 대도시의 도심부와 주변부에서 확인되고 있다. 미래의 기후변화에 대해 체계적인 접근과 대응책을 제시하기 위해서는 인덱스를 찾아 장기적인 연구가 필요하다.

Correlation Analysis of Atmospheric Pollutants and Meteorological Factors Based on Environmental Big Data

  • Chao, Chen;Min, Byung-Won
    • International Journal of Contents
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    • 제18권1호
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    • pp.17-26
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    • 2022
  • With the acceleration of urbanization and industrialization, air pollution has become increasingly serious, and the pollution control situation is not optimistic. Climate change has become a major global challenge faced by mankind. To actively respond to climate change, China has proposed carbon peak and carbon neutral goals. However, atmospheric pollutants and meteorological factors that affect air quality are complex and changeable, and the complex relationship and correlation between them must be further clarified. This paper uses China's 2013-2018 high-resolution air pollution reanalysis open data set, as well as statistical methods of the Pearson Correlation Coefficient (PCC) to calculate and visualize the design and analysis of environmental monitoring big data, which is intuitive and it quickly demonstrated the correlation between pollutants and meteorological factors in the temporal and spatial sequence, and provided convenience for environmental management departments to use air quality routine monitoring data to enable dynamic decision-making, and promote global climate governance. The experimental results show that, apart from ozone, which is negatively correlated, the other pollutants are positively correlated; meteorological factors have a greater impact on pollutants, temperature and pollutants are negatively correlated, air pressure is positively correlated, and the correlation between humidity is insignificant. The wind speed has a significant negative correlation with the six pollutants, which has a greater impact on the diffusion of pollutants.

Comparative assessment of surface and ground water quality using geoinformatics

  • Giridhar, M.V.S.S.;Mohan, Shyama;Kumar, D. Ajay
    • Advances in environmental research
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    • 제9권3호
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    • pp.151-160
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    • 2020
  • Water quality demonstrates physical, chemical and biological characteristics of water. The quality of surface and groundwater is currently an important concern with population growth and industrialization. Over exploitation of water resources due to demand is causing the deterioration of surface water and ground water. Periodic water quality testing must be carried out to protect our water resources. The present research analyses the spatial variation of surface water and groundwater in and around the lakes of Hyderabad. Twenty-Seven lakes and their neighboring bore water samples are obtained for water quality monitoring. Samples are evaluated for specific physico-chemical parameters such as pH, Total Dissolved Solids (TDS), Cl, SO4, Na, K, Ca, Mg, and Total Hardness (TH). The spatial variation of water quality parameters for the 27 lakes and groundwater were analysed. Correlation and multiple regression analysis were carried out to determine comparative study of lake and ground water. The study found that most of the lakes were polluted and this had an impact on surrounding ground water.

Impacts of Climate Change on Water Crisis and Formation of Green Algal Blooms in Vietnam

  • Thriveni, Thenepalli;Lee, Namju;Nam, Gnu;Whan, Ahn Ji
    • 에너지공학
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    • 제26권1호
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    • pp.68-75
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    • 2017
  • Global warming affects water supply and water resources throughout the world. In many countries, climate change affects significantly on the fresh water resources. Vietnam is exposed mainly, to landslides and floods triggered by tropical storms and monsoon rains, although storm surge, whirlwind, river bank and coastal line erosion, hail rain. In addition to the prevalent drought, there are many major water challenges, including water availability, stress, scarcity and accessibility, because of poor resource management. Fast growth of urbanization, industrialization and population growth, agricultural activities and climate change cause heavy pressure on water quality. Both domestic and industrial wastewater, as well as storm water shares the same drainage. The common facilities for wastewater treatment are not available. Therefore, wastewater is treated only superficially and then discharged directly into rivers and lakes causing serious pollution of surface water environment. In this paper, we reported the severe water crisis and massive green algal blooms formation in Vietnam rivers and lakes. This is the biggest evidence of climate change variations in Vietnam.

스마트 기술을 적용한 도시형 실버타운에 관한 연구 - 노인의 행태를 중심으로 - (A Study on the Urban Type Silver Town based on Smart Technology - With Focus on the Behavior of the Elderly -)

  • 이정필;정철오;김용성
    • 한국실내디자인학회논문집
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    • 제15권5호
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    • pp.141-148
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    • 2006
  • Recently, human's life is more longer and the birth rate continually decrease by the development of medical technology. In 2026 the ratio of the elderly will come up to 20.8% and be a 'post-aged society'. Development of economy and industrialization not only accelerate the urbanization and formation of nuclear family, but also change the changing of traditional society and one's value. So the issue of society and value's changing in the elderly increase the centralizing in the silver industry, and by the recent research about the elderly, they not want to live with their children, but want to live independently. This study is meaningful at the next generation of Ubiquitous society and post-aged society, proposing the smart silver town in urban type and let the elderly keeping the existing life in city. It realize the concept of 'Aging in Place' and propose the smart silver town in urban type which appropriate to behavior of the elderly, and being satisfy with various requirements of the elderly. This study point up the combination of physical elements and electronic elements through the smart technology, and making an smart environment to compose the smart silver town in urban type which react the behavior of the elderly.

Developing a composite vertical flow constructed wetlands for rainwater treatment

  • Ahmed, Sanjrani Manzoor;Zhou, Boxun;Zhao, Heng;Zheng, You Ping;Wang, Yue;Xia, Shibin
    • Membrane and Water Treatment
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    • 제11권2호
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    • pp.87-95
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    • 2020
  • The worldwide shortage of water resources is a major environmental issue. Using pure water for drinking and domestic purposes is a bigger issue than other environmental issues. Industrialization and Urbanization have even polluted rainwater. In China, when it rains, rainwater is stored on the roof or other sources of storage for daily use resulting in pollution. Several studies have been conducted to treat rainwater. The objective of this study is to evaluate the efficiency of constructed wetlands by using ACF as a medium. So, this study aims to treat rainwater in Wuhan city through a Composite Vertical Flow Constructed Wetlands. First, rainwater was stored in the tank while it flows out of the roof, further it is processed in constructed wetlands. The constructed wetlands is consisted with plants Calamus and Chives, adding ACF (prepared from luffa) has achieved great results in this study. Results show that the pollutants have been removed to a considerable level, there were significant differences in removal rates under different HRT at 6h, 9h and 12h respectively. Therefore, Composite Vertical Flow Constructed Wetlands is recommended for total nitrogen and Ammonia nitrogen and total phosphorus.

환경보전과 지속가능한 부산의 도시개발방안 (Environmental Conservation and Sustainable Pusan Development Strategy)

  • 황영우;송교욱;양위주
    • 한국환경과학회지
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    • 제6권3호
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    • pp.195-203
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    • 1997
  • Pusan has experienced some different paths of urbanization and industrialization compared to other cities. and has faced the problem of over-saturation In enoronmental capacity. Pusan needs to fond out sustainable development strategies based on Agenda 21 by UNCED In 1992 to secure urban renewal. Therefore. Pusan's sustainable development strategies focus on the 1)research on envlronmental capacity and reasonable population accommodation 2)supp1y of basic enoronmental facilities for the human settlement 3)protection and efficient management of environmental pollution 4)saving and control of energy and other resources S)independent and stable euecution of plan based on biological relation 6)harmony between nature and urban spatial organization. In addition. these policies can be suggested along with the conclusions; First, ostablishment of green plan-muddle and long term environmental goals Included In the urban planning to reduce enoronmental deterioration and pollution. Second, computation of sustalnability Indeu the Index Is necessary to sustainable urban development, which is related with green GNP of the national level. Third, capacity estimation of nature and social environment-estimation of enoronmental capacity to the civilized area is required become an ecopolis, and is required to focus on the western area of Pusan which has high decree of potentiality.

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Salix종의 생물공학적 이용성에 관한 연구 (A Study on the Salix's Biotechnical Application)

  • 김혜주;이준헌
    • 한국조경학회지
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    • 제26권3호
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    • pp.143-151
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    • 1998
  • To develop restoration technologies of natural environment, which is destroyed through the urbanization, industrialization, and the increase of leisure industry, the development of environmental restoration material and those application is greatly needed. Concerning this current issue, an experiment has been conducted to test and an experiment has been conducted to test and analyze the conditions of nutritonal propagation of willow cutting, which is known as a plant with rapid propagation and good growth capability under bad soil conditions and its wide ecological amplitude. 24 various kinds of willow cuttings -2~6 cuttings for each species -were placed into the earth for 57 days and measured the lengths and the diameters of willow cuttings, the possibility of root formation, the total number, and the total length of new shoots and roots. 23 among 24 willow cuttings tested were showing a great growing capacity and a number of new shoots and roots were observed in a relatively short time. This proved that salix is an adequate plant material for quick environmental restoraton . Besides, those willow cuttings could be classified for different site conditions through comparing the ratio of the underground part to the aboveground in total length. The results are as follows; S. dependens, S. matsudana, S. babylonica are the most suitable species for quick vegetaton and S. gracilistyla,S. myricoides,S. alba 'sercia' for erosioni control.

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