• Title/Summary/Keyword: cumulative impact

Search Result 180, Processing Time 0.025 seconds

Environmental Impact Assessment and Sustainable Development : Key Issues and Future Directions (지속 가능한 개발과 환경영향평가 : 주요 특성과 미래의 방향)

  • Nixon, J. Ashley;Clark, Brian D.
    • Journal of Environmental Impact Assessment
    • /
    • v.3 no.1
    • /
    • pp.53-68
    • /
    • 1994
  • Initially the paper will explore the concept, evolution and utility of Sustainable Development in the broad context of its links to the EIA process by predicting in advance decisions being made attempts to balance the needs of environmental, economic and social objectives. The paper then considers how an evolving and improved EIA process and in particular with the emphasis increasingly riving from projects to polieies, plans and programmes, can provide q framework to operationalise Sustainable Development with the focus on cumulative impacts, making EIA "problem focussed" and linking policy, environmental planning and assessment. The paper then reviews some of the practical EIA tools and methods that can support the practical application of more susk inable forms of development. The paper concludes by considering the follow ups that are now occurring after the Reo Sumit and suggests that has a Key and powerful role to play in this process, whether at an institutional prettiest policy level.

  • PDF

Uncertainty in Regional Climate Change Impact Assessment using Bias-Correction Technique for Future Climate Scenarios (미래 기상 시나리오에 대한 편의 보정 방법에 따른 지역 기후변화 영향 평가의 불확실성)

  • Hwang, Syewoon;Her, Young Gu;Chang, Seungwoo
    • Journal of The Korean Society of Agricultural Engineers
    • /
    • v.55 no.4
    • /
    • pp.95-106
    • /
    • 2013
  • It is now generally known that dynamical climate modeling outputs include systematic biases in reproducing the properties of atmospheric variables such as, preciptation and temerature. There is thus, general consensus among the researchers about the need of bias-correction process prior to using climate model results especially for hydrologic applications. Among the number of bias-correction methods, distribution (e.g., cumulative distribution fuction, CDF) mapping based approach has been evaluated as one of the skillful techniques. This study investigates the uncertainty of using various CDF mapping-based methods for bias-correciton in assessing regional climate change Impacts. Two different dynamicailly-downscaled Global Circulation Model results (CCSM and GFDL under ARES4 A2 scenario) using Regional Spectial Model for retrospective peiod (1969-2000) and future period (2039-2069) were collected over the west central Florida. Total 12 possible methods (i.e., 3 for developing distribution by each of 4 for estimating biases in future projections) were examined and the variations among the results using different methods were evaluated in various ways. The results for daily temperature showed that while mean and standard deviation of Tmax and Tmin has relatively small variation among the bias-correction methods, monthly maximum values showed as significant variation (~2'C) as the mean differences between the retrospective simulations and future projections. The accuracy of raw preciptiation predictions was much worse than temerature and bias-corrected results appreared to be more significantly influenced by the methodologies. Furthermore the uncertainty of bias-correction was found to be relevant to the performance of climate model (i.e., CCSM results which showed relatively worse accuracy showed larger variation among the bias-correction methods). Concludingly bias-correction methodology is an important sourse of uncertainty among other processes that may be required for cliamte change impact assessment. This study underscores the need to carefully select a bias-correction method and that the approach for any given analysis should depend on the research question being asked.

The Study on the Institutional Trend and Introduction of SEA in Korea (전략환경평가의 제도화 동향과 국내 도입 방안)

  • Kim, Im-Soon;Kim, Yoon-Shin;Seo, Yong-Seok;Chang, Sung-Oun;Choi, Won-Wook;Han, Sang-Wook
    • Journal of Environmental Impact Assessment
    • /
    • v.12 no.3
    • /
    • pp.171-188
    • /
    • 2003
  • Environmental Impact Assessment(ElA) in Korea has been used to improve environmental conservation and decision-making since environmental impact statement(EIS) was introduced in 1981 with the promulgation of the Environmental Preservation Act in 1977. which replaoed the Pollution Control Act legislated in 1%3. Together with a rapid growth of environmental perception as well as the diversification of development activities, however, it has recently bring about a strong demand for a new assessment process related to the strategic level of policies, plan, programs. In order to overcome such a limit in ElA system, Prior Environmental Review System(PERS) was introduced for assessment of administrative plans mainly concerned with development projects in 1993. In 1999. the regulations for PERS have been established by an amendment of the Basic Environmental Policy Act.Therefore the foundation of EIA system to integrate environmental concerns in planning processes and project works has been refonned. However the results of the execution of PERS were somewhat insuffident due to the institutional and technical matters. As the world's attention turns to sustainability and the considerations of cumulative effects, the concept of strategic envirorunental assessment(SEA) has taken on more significance and urgency and increasing number of countries and international organizations now undertake some form of SEA. The term SEA, however, is variously defined and understood, generally it means a formal process of systematic analysis of the envirorunental effects of development policies, plans, programmes and other proposed strategic actions. This process extends the aims and principles of EIA upstream in the decision-making process, beyond the project level and when major alternatives are still open. In this paper, we are discussing the significance of SEA and its relevance to EIA and the international trends and institutionalization of SEA. In conclusion we are discussing the comprehensive developing plan for SEA in Korea, then proposing a plan to make institutional arrangements for its application.

A Study of Nonpoint Source Pollutants Loads in Each Watershed of Nakdong River Basin with HSPF (HSPF 모델을 이용한 낙동강유역의 유역단위별 비점오염부하량 산정)

  • Kwon, Kwangwoo;Choi, Kyoung-sik
    • Journal of Environmental Impact Assessment
    • /
    • v.26 no.1
    • /
    • pp.68-77
    • /
    • 2017
  • In order to estimate the non-point pollution loads from each watersheds among 209 watersheds, the calibration and validation of HSPF model were carried out based on 2012 in 2013 years. In the case of flow rate, R2 of calibration and validation were 0.71~0.93 and 0.71~0.79, which were relatively good values. With the respect to calibration of water quality, % differences between measured and simulated values were 0.4 ~ 9.7 of DO, BOD 0.5 ~ 30.2% and TN 1.9~28.6% except for Hwhangkang B site. In case of validation, DO was 0.2 ~ 13.7%, BOD 1.3~23% and TN 0.5~24.3% excluding Hwhangkang B. However, since the concentration of TP was very small compared with other items, the range of difference was large as 0.8~55.3%. level. As the result of calculating annual accumulative BOD loads for each watershed, it was found that RCH 123 (Uryeong, Gyeongsangnamdo), RCH 121 (Jinju, Gyeongsangnamdo) and RCH 92 (Daegu) were the high ranked. The unit watersheds including various landuse type susch as forest and agricultural sites in mainstream areas have a higher BOD nonpoint pollution load than those in dam regions. However, the results of the annual cumulative loading of the basins for nutrients did not appear to be consistent with the BOD annual cumulative loading ranks. Other factors that represent watershed characteristics such as landslope and soiltypes, including landuse pattern, have been found to be closely related to nonpoint pollutant loads.

The Impact of Coffee Barista Job Stress on Job Satisfaction and Organizational Loyalty (커피 바리스타 종사원의 직무스트레스가 직무만족, 조직몰입에 미치는 영향)

  • Lee, Sunho
    • Culinary science and hospitality research
    • /
    • v.21 no.6
    • /
    • pp.91-102
    • /
    • 2015
  • This study examined the factors that affect the relationship among coffee barista employees job stress, job satisfaction and customer organizational loyalty. A total of 200 questionnaires were distributed to consumers, of which 188 were deemed suitable for analysis after the removal of 12 unusable responses. In order to perform statistical analyses required by the study, the SPSS 18.0 Statistical Program was employed for frequency, factor, reliability correlation, and regression analyses. The results of exploratory factor analysis showed that three factors regarding job stress were extracted from all measurements with a KMO of 0.714 and a total cumulative variance of 64.368%, with regards to job satisfaction, three factors were extracted with a total cumulative variance of 151.612% and a KMO score of 0.659. One factor for organizational loyalty was extracted that accounted for a total cumulative variance of 62.102% and a KMO score of 0.750. All factors were significant to 0.000 and the correlation between variables was significant. Thus, based on the results, the main research hypothesis that identifies the relationships among job stress, job satisfaction and organizational loyalty was partially adopted.

Functional Bakery Impact on the Degree of Motivation to Purchase Consumer Attitudes and Buying Intention - Focused on Busan - (기능성 베이커리 구매동기가 소비자태도 및 구매의도에 미치는 영향 - 부산지역을 중심으로 -)

  • Han, Sang-Hoon;Kim, Bo-Seong
    • Culinary science and hospitality research
    • /
    • v.21 no.6
    • /
    • pp.331-340
    • /
    • 2015
  • This study examined the factors that affect the relationship among functional bakery purchase motivation, consumer attitudes, and purchase intention. A total of 230 questionnaires were distributed to the consumers, of which 210 were deemed suitable for analysis after the removal of 20 unusable responses. In order to perform statistical analyses required in current study, SPSS 18.0 statistical program was employed for frequency analysis, factor analysis, and reliability analysis, Correlations, regression analysis. The results of exploratory factor analysis showed that four factors regarding local specialties purchase motivation were extracted from all measurements with a KMO of 0.735 and a total cumulative variance of 65.759%, with regard to consumer attitudes, one factors were extracted with a total cumulative variance of 72.421% and a KMO score of 0.684. One factor for purchase intention was extracted that accounted for a total cumulative variance of 67.139% and a KMO score of 0.683. All factors were significant and the correlation between variables was significant as well. Thus, based on the results, the main research hypothesis that identifies the relationships purchase motivation between consumer attitudes and purchase intention were partially adopted.

The Impact of Window Bakery Employee Psychological Capital on Job Satisfaction and Customer Orientation - Focused on Gwangju - (윈도우 베이커리 종사원의 심리적 자본이 직무만족과 고객지향성에 미치는 영향 - 광주지역을 중심으로 -)

  • Kim, Seong Su;Lee, Sang Jin
    • Culinary science and hospitality research
    • /
    • v.21 no.6
    • /
    • pp.28-37
    • /
    • 2015
  • This study examined the factors that affect the relationship between window bakery employee psychological capital l, job satisfaction and customer orientation. A total of 220 questionnaires were distributed to employees, of which 205 were deemed suitable for analysis after the removal of 15 unusable responses. In order to perform statistical analyses required by the study, the SPSS 18.0 Statistical Program was employed for frequency, facto, reliability, correlations, and regression analyses. The results of exploratory factor analysis showed that four factors regarding psychological capital were extracted from all measurements with a KMO of 0.780 and a total cumulative variance of 66.633%, With regard to job satisfaction, one factors was extracted with a total cumulative variance of 61.592% and a KMO score of 0.658. One factor for customer orientation was extracted that accounted for a total cumulative variance of 64.240% and a KMO score of 0.765. All factors were significant to 0.000 and the correlation between variables was significant. Thus, based on the results, the main research hypothesis that identifies the relationships that psychological sapital with job satisfaction and customer orientation was adopted.

The Impact of Job Characteristics and Job Satisfaction of Franchise Bakery Employees on Turnover - Focused on Gwangju - (프랜차이즈 베이커리 종사원의 직무특성, 직무만족, 이직의도 간의 영향관계 - 광주지역을 중심으로 -)

  • Yoo, Joo Yeon
    • Culinary science and hospitality research
    • /
    • v.22 no.3
    • /
    • pp.22-32
    • /
    • 2016
  • This study examined the factors that affect the relationship between job characteristics, job satisfaction and turnover intention. A total of 300 questionnaires were distributed to bakery workers, of which 279 were deemed suitable for analysis after the removal of 21 unusable responses. In order to perform statistical analyses required in the study, AMOS and SPSS 18.0 statistical software were employed for frequency analysis, factor analysis, reliability analysis, correlations, and regression analysis. The results of exploratory factor analysis showed that four factors regarding local specialties job characteristics were extracted from all measurements with a KMO of 0.766 and a total cumulative variance of 67.905%. With regard to job satisfaction, one factor was extracted with a total cumulative variance of 64.955% and a KMO score of 0.733. One factor for turnover intention was extracted that accounted for a total cumulative variance of 64.689% and a KMO score of 0.760. All factors were significant to 0.000 and the correlation between variables was significant. Thus, based on the results, the main research hypothesis that identifies the relationships among job characteristics, job satisfaction and turnover intention was partially adopted.

Selectivity Estimation using the Generalized Cumulative Density Histogram (일반화된 누적밀도 히스토그램을 이용한 공간 선택율 추정)

  • Chi, Jeong-Hee;Kim, Sang-Ho;Ryu, Keun-Ho
    • The KIPS Transactions:PartD
    • /
    • v.11D no.4
    • /
    • pp.983-990
    • /
    • 2004
  • Multiple-count problem is occurred when rectangle objects span across several buckets. The CD histogram is a technique which selves this problem by keeping four sub-histograms corresponding to the four points of rectangle. Although It provides exact results with constant response time, there is still a considerable issue. Since it is based on a query window which aligns with a given grid, a number of errors nay be occurred when it is applied to real applications. In this paper, we propose selectivity estimation techniques using the generalized cumulative density histogram based on two probabilistic models : \circled1 probabilistic model which considers the query window area ratio, \circled2 probabilistic model which considers intersection area between a given grid and objects. Our method has the capability of eliminating an impact of the restriction on query window which the existing cumulative density histogram has. We experimented with real datasets to evaluate the proposed methods. Experimental results show that the proposed technique is superior to the existing selectivity estimation techniques. Furthermore, selectivity estimation technique based on probabilistic model considering the intersection area is very accurate(less than 5% errors) at 20% query window. The proposed techniques can be used to accurately quantify the selectivity of the spatial range query on rectangle objects.

Brunch Cafe of Service Quality, Value Perception, and Customer Loyalty the Impact of Relationship (브런치 카페의 서비스품질, 가치지각, 고객충성도의 영향관계)

  • Kim, Geon-Whee;Ha, Heon-Su
    • Culinary science and hospitality research
    • /
    • v.22 no.2
    • /
    • pp.1-12
    • /
    • 2016
  • This study examined the factors that affect the relationship between service quality of brunch cafe, value perception and customer loyalty. A total of 225 questionnaires were distributed to the consumers, of which 210 were deemed suitable for the analysis after the removal of 15 unusable responses. In order to perform statistical analyses required in the study, SPSS 18.0 Statistical Program was employed for frequency analysis, factor analysis, and reliability analysis, correlations, regression analysis. The results of exploratory factor analysis showed that four factors regarding local specialties service quality were extracted from all measurements with a KMO of 0.823 and a total cumulative variance of 66.095%, With regard to value perception, Three factors were extracted with a total cumulative variance of 61.213% and a KMO score of 0.871. One factor for customer loyalty was extracted that accounted for a total cumulative variance of 64.054% and a KMO score of 0.845. All factors were significant at 0.000 and the correlation between variables was significant. Thus, based on the results, the main research hypothesis that identifies the relationship between value perception and customer loyalty was partially adopted.