• Title/Summary/Keyword: the urban environment

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A Study on the Determinants of Pro-Environmental Attitude and Water Consumption of Urban Households (도시 가구의 환경 친화적인 태도와 물 소비에 관한 연구)

  • 이경희
    • Journal of the Korean Home Economics Association
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    • v.41 no.3
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    • pp.93-111
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    • 2003
  • This study aimed to examine the water consumption of urban households according to pro-environmental attitude for environmental protection. In contrast to preview studies, this study purposed to include various related independent variables, motive to environmental behavior, in special, in the model, and suggest informative data for research, education and strategies related to environmental protection. The data were from 665 housewives living in five urban areas. For the analysis of data, frequencies, means, percentages, GLM analysis, DMR test and Chi-square test were used. The main results of this study were as follows; 1. The respondents held high pro-environmental attitude that pro-environmental behaviors are important to protect environment. The pro-environmental attitude among the respondents were statistically different from the independent variables : spouse's occupation, living area, help of housekeeper, knowledge about environmental protection, convenience to check water consumption, and perception of voluntary conservative behavior among neighborhood 2. There were great difference on water consumption among respondents. The significant independent variables to have effects on water consumption were different between water consumption per person and higher/lower average water consumption. The relationships of pro-environmental attitude and motive to pro-environmental behavior with two water consumption as dependent variables were unique. Also, living areas and knowledge about environment protection were consistently important to explain the difference of water consumption.

A Study on the Mitigation Policies for Urban Heat Island (도시열섬 완화를 위한 제도개선)

  • Suh, Eung Chul
    • KIEAE Journal
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    • v.7 no.2
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    • pp.17-23
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    • 2007
  • While heat island has been recognized as an unique environmental nuisance in cities, the phenomenon tends to be regarded as an inevitable side effect on urbanization. Recently the nature of the heat island has been disclosed and efforts for the remedy have been discussed in many ways. Some pioneering actions have been taken to mitigate the strength of the heat island's intensity in several countries. After studies for the heat island and speculations on current pilot policies of 3 different countries has been done, mitigation policies for heat island has been suggested as followings. 1. Preservation of natural topography is essential because latent energy consumption(evapotranspiration) from the site is the single most important factor to mitigate the energy surplus caused by urban heat island. 2. Because current national zoning ordinance or building law can not effectively control the site specific local environment, heat island policy should be established or employed at local level. 3. Incentives for the mitigation should be adopted on the process of implementation because environment is public concern. 4. Wind can easily dissipate energy surplus which is the major driving force for heat island. Therefore local wind, the direction and intensity should be sustained and sometimes facilitated fully through policies.

An Application of Physico-Environmental Evaluation System of Stream - Focusing on urban streams - (하천의 물리 환경성 평가체계의 적용 - 도시하천을 중심으로 -)

  • Jung, Hea-Reyn;Kim, Ki-Heung
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.20 no.1
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    • pp.55-75
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    • 2017
  • The purpose of this study is to present the basic data for restoration of physical stream environment by analyzing habitat variables because habitat environment is changed due to the construction of waterfront space in urban streams. Assessment results of 10 habitat variables(three divisions) were almost same as optimal condition, in the reach of reference stream where there are no stream crossing structures and channel alteration. Assessment results of reaches in urban rivers, where streams were improved on water-friendly recreation activities, appeared to be marginal condition. Because habitat environment got worse due to stream improvement works such as construction of weir for water landscape, stepping stones for walking, low water revetment and high water revetment, and high water channel. In addition, in the case of mid gradient stream, the frequency of riffles was small or not existed because the intervals of the river crossing structures was short. In the case of mild stream types, the diversity of the pool was damaged due to the deposition of sludge in the upstream pool of weir and the installation of low water revetment.

Box Model Approach for Indoor Air Quality (IAQ) Management in a Subway Station Environment

  • Song, Jihan;Pokhrel, Rajib;Lee, Heekwan;Kim, Shin-Do
    • Asian Journal of Atmospheric Environment
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    • v.8 no.4
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    • pp.184-191
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    • 2014
  • Air quality in a subway tunnel has been crucial in most of the subway environments where IAQ could be affected by many factors such as the number of passengers, the amount and types of ventilation, train operation factors and other facilities. A modeling approach has been introduced to manage the general IAQ in a subway station. Field surveys and $CO_2$ measurements were initially conducted to analyze and understand the relationship between indoor and outdoor air quality while considering internal pollution sources, such as passengers and subway trains, etc. The measurement data were then employed for the model development with other statistical information. For the model development, the algorithm of simple continuity was set up and applied to model the subway IAQ concerned, while considering the major air transport through staircases and tunnels. Monitored $CO_2$ concentration on the concourse and platform were correlated with modeling results where the correlation values for the concourse and platform were $R^2=0.96$ and $R^2=0.75$, respectively. It implies that the box modeling approach introduced in this study would be beneficial to predict and control the indoor air quality in subway environments.

A Study of Activating Urban Square's Ecological Soundness - Focusing on Gyodong Square in the City of Gangneung - (도심광장의 생태적건전성 활성화방안 - 강릉시 교동 광장을 사례로 -)

  • Kim, Ji-Youn;Kang, Seon-Hong;Cho, Tae-Dong
    • Journal of Environmental Science International
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    • v.26 no.7
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    • pp.837-846
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    • 2017
  • This study aimed to investigate the dilapidated Fine View Square located in the city of Gangneung and analyze problems for building it into a sustainable space under an effective management plan. Further to creating an ecological base for restoring the natural circulation, a restorative method for the damaged area, a spatial assignment by the UNESCO's Man and Biosphere Programme (MAB), and an urban ecological park, we not only wanted to provide an environment that is citizen friendly, but also a practical and realizable project to connect with the various methods and programs mentioned above, while utilizing the Ministry of the Environment 's ecosystem conservation fund. In conclusion, we found that it would be possible to contribute to building an urban ecological park the Ministry of Environment proposed while restoring the lost natural circulation in Gyodong Square in the city of Gangneung and ecological soundness of the city along with the reduced heat island effect and the increased biological diversity and Ecological Soundness.

Sustainable Fresh Water Resources Management in Northern Kuwait-A Remote Sensing View From Raudatain Basin

  • Saif ud din;Dousari Ahmad AI;Ghadban Abdulnabi AI
    • Proceedings of the KSRS Conference
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    • 2005.10a
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    • pp.153-164
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    • 2005
  • The paper presents time and cost effective remote sensing technology to estimate recharge potential of fresh water shallow aquifers for their sustainable management in arid ecosystem. Precipitation measurement of Raudatain Basin in Kuwait from TRMM data has been made and integrated with geological, geomorphological and hyrological data, to estimate the recharge potential of the basin. The total potential recharge to the area is estimated as 333.964 MCM annually. The initial losses are estimated at $60\%$ of the net precipitation .The net available quantity for recharge is 133.58 MCM. For sustainable management of the ground water resources, recharge wells have been proposed in the higher order streams to augment the Raudatain aquifer in Kuwait. If the available quantity of precipitation can be successfully utilized, it will reduce considerable pressure on desalination, which is leading to increased salinity off the coast in Arabian Gulf.

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How effective are artificial nests in attracting bees? A review

  • Rahimi, Ehsan;Barghjelveh, Shahindokht;Dong, Pinliang
    • Journal of Ecology and Environment
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    • v.45 no.3
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    • pp.152-162
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    • 2021
  • Background: Recent declines in bee populations, along with increasing demand for pollination services in urban, agricultural, and natural environments, have led to strategies to attract wild bees to these areas. One of these strategies is installing artificial nests adjacent to urban gardens and agricultural farms. Bee hotels and nest boxes are among the artificial nests used by gardeners and farmers to attract pollinators. In this paper, we reviewed 50 studies that reported the efficiency of nest boxes and bee hotels in attracting bees. We considered the maximum occupation rate (percentage) as the main index to evaluate the efficiency of artificial nests. Results: The maximum occupation rate of bee hotels was higher in farms (averaged 44.1%) than in forests (averaged 30.3%) and urban (averaged 38.3%) environments. In the case of nest boxes, most studies reported efficiencies of less than 20%, with an occupation rate of 16% and 5.5% on average in forest and urban environments respectively. However, our meta-analysis results showed that there was no significant relationship between the occupation rate of the nests and their installation place. Regression analysis also showed that the structural features of bee hotels (length and diameter) and nest boxes (volume and entrance size) did not affect their efficiency in attracting bees. Conclusion: Our data showed that the strategy of installing artificial nests to attract pollinators is successful only concerning bee hotels, and the use of nest boxes has not been very successful.

A Study on Local Residents' Evaluation of the Planned Indicator Value for Urban Regeneration - Targeting Local Residents in Mokpo - (도시재생사업 계획지표에 관한 지역주민의 가치평가 연구 - 목포시 지역 주민을 대상으로 -)

  • Shin, EunJu;Yoo, ChangGeun;Cho, SeongJin
    • Journal of the Korean housing association
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    • v.26 no.6
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    • pp.71-81
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    • 2015
  • In terms of urban regeneration of the present that focuses on a city's original history, culture and environment, it is now being understood as a concept of how a city by itself gets vitalized through local participation and communities. That is what indicates how a main agent of urban regeneration is changing to relevant local residents from public organizations and due to that reason, establishment of a differentiated urban regeneration policy that would reflect opinions of the locals is demanded. In the light of that, this study aimed to offer an urban regeneration project planning indicators targeting an old downtown area of Mokpo city which has been selected as an urban regeneration district. An AHP (Analytic Hierarchy Process) survey on the locals had revealed priorities of the indicators which helped the study to present indicators to be practically used for the urban regeneration project on the old downtown area in Mokpo.

Survey and Evaluation for Exterior Noise of a High Rise Apartment in Seoul (서울시 초고층 아파트의 외부소음 측정과 평가)

  • Lee, Seon-Dong;Park, Yu-Ra;Lee, Sang-Woo;Yoo, Ho-Chun
    • KIEAE Journal
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    • v.4 no.3
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    • pp.95-101
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    • 2004
  • As a part of acoustical design, it is often necessary to quantify aspects of an existing environment and to predict the result of adding an acoustical treatment. The most common sources of exterior noise, also termed as environmental noise,(or community noise) are traffic noise, air craft noise, industrial noise, etc. Transportation(air, road, and rail)noise is the dominant and most common source of noise exposure in residential neighborhoods, and the annoyance is its most consequential effect. The road traffic noise becomes aggravated due to the rapid increase of vehicles. It has a great effect on the dwelling environment. Therefore we investigate the characteristics and sources of the road traffic noise through grasping the status of the road traffic noise. In the present study, preceding studies investigated the noise level of urban areas in Seoul were reviewed and the noise level of urban areas in Seoul was measured at first, fifth, tenth, and nineteenth floor for two days of weekdays and two days of weekend.

Green and Healthy Living in a High-rise, High Density Urban Environment: The Hong Kong Housing Authority's Experience

  • Fung, Ada Y.S.
    • Land and Housing Review
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    • v.5 no.3
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    • pp.131-136
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    • 2014
  • The Hong Kong Housing Authority (HKHA) develops and implements a public housing programme to meet the housing needs of people who cannot afford private rental housing. The HKHA has an existing stock of about 740,000 public rental flats (PRH). According to the 2014 Policy Address, the Government aims to provide an average of about 20,000 PRH units and about 8,000 Home Ownership Scheme (HOS) units per year. We care for the environment. In developing new housing estates, we conduct thorough environmental studies such as microclimate studies and air ventilation assessment, and use passive design to harness the natural characteristics of our sites. We employ environment-friendly design and construction methods, using modular flat design, pre-cast and pre-fabricated construction techniques as well as recycled, green construction materials. We conduct Carbon Emission Estimation for all our projects, conserve the use of natural resources and reduce wastes throughout the life cycle of buildings. We care for people. We adopt the principles of Universal Design and Barrier Free Access for the convenience and welfare of people of all ages and abilities. We carry out Community Engagement to collect stakeholders' views and aspirations, and incorporate them in the design of our projects. We also carry out surveys of residents' views after the occupation of new estates to gauge our success and identify areas for improvement.