• Title/Summary/Keyword: Environmental survey

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A Study on the Species Distribution Modeling using National Ecosystem Survey Data (전국자연환경조사 자료를 이용한 종분포모형 연구)

  • Kim, Jiyeon;Seo, Changwan;Kwon, Hyuksoo;Ryu, Jieun;Kim, Myungjin
    • Journal of Environmental Impact Assessment
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    • v.21 no.4
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    • pp.593-607
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    • 2012
  • The Ministry of Environment have started the 'National Ecosystem Survey' since 1986. It has been carried out nationwide every ten years as the largest survey project in Korea. The second one and the third one produced the GIS-based inventory of species. Three survey methods were different from each other. There were few studies for species distribution using national survey data in Korea. The purposes of this study are to test species distribution models for finding the most suitable modeling methods for the National Ecosystem Survey data and to investigate the modeling results according to survey methods and taxonominal group. Occurrence data of nine species were extracted from the National Ecosystem Survey by taxonomical group (plant, mammal, and bird). Plants are Korean winter hazel (Corylopsis coreana), Iris odaesanensis (Iris odaesanensis), and Berchemia (Berchemia berchemiaefolia). Mammals are Korean Goral (Nemorhaedus goral), Marten (Martes flavigula koreana), and Leopard cat (Felis bengalensis). Birds are Black Woodpecker (Dryocopus martius), Eagle Owl (Bubo Bubo), and Common Buzzard (Buteo buteo). Environmental variables consisted of climate, topography, soil and vegetation structure. Two modeling methods (GAM, Maxent) were tested across nine species, and predictive species maps of target species were produced. The results of this study were as follows. Firstly, Maxent showed similar 5 cross-validated AUC with GAM. Maxent is more useful model to develop than GAM because National Ecosystem Survey data has presence-only data. Therefore, Maxent is more useful species distribution model for National Ecosystem Survey data. Secondly, the modeling results between the second and third survey methods showed sometimes different because of each different surveying methods. Therefore, we need to combine two data for producing a reasonable result. Lastly, modeling result showed different predicted distribution pattern by taxonominal group. These results should be considered if we want to develop a species distribution model using the National Ecosystem Survey and apply it to a nationwide biodiversity research.

A Needs Assessment for Environmental Education in Korean Schools (우리 나라 학교 환경교육 현황과 '나무와 숲에 관한 지도식 프로그램 개발'을 위한 요구도 분석)

  • 윤여창;송영은;박진희;남효창;김상윤;임미연
    • Hwankyungkyoyuk
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    • v.12 no.1
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    • pp.311-321
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    • 1999
  • This survey was conducted to investigate the perception on environmental education by teachers, the current situation of environmental education including problems faced by them in teaching environmental education in the primary and secondary schools. Questions in the survey are designed to aid the development of an environmental education program on trees and forests for teachers to use in their instruction of environmental education. Eight hundred teachers were chosen as a sample in the survey and some of them were again invited to a workshop on environmental education afterwards. In the workshop the survey result was discussed in order to make it more meaningful for program development. The process of environmental education program development, which is sponsored by UNDP and the Korean Government, will be shared with the participants of the conference.

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A Study on Weight Analysis of Environmental Resources in Jeju Special Self-Governing Province through Expert Survey (전문가 설문을 통한 제주특별자치도 환경자원 가중치 분석에 관한 연구)

  • Jung-Young Seo
    • Journal of Environmental Science International
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    • v.32 no.11
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    • pp.767-775
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    • 2023
  • This study was conducted to lay the foundation for considering the qualitative aspects of environmental resources by calculating the weight of each environmental resource to calculate the total amount of environmental resources in Jeju. By comparing and analyzing the results of the expert survey conducted in 2011 and the results of the expert survey conducted in 2011 and 2022, changes in experts' perceptions and implications over time were derived. In addition, based on the results of the recent survey, the weight according to the relative importance was calculated to lay the foundation for calculating the total amount of environmental resources in Jeju. The results of this study are expected to provide basic data necessary for the successful institutionalization of the total environmental resource system by providing a scientific basis for the calculation of the total environmental resource. As a result of comparing the survey conducted in 2011 to the survey conducted in 2022 to establish a total environmental resource management plan in Jeju Special Self-Governing Province, there was a difference in the relative importance of the environmental resource category. Although the ranking between categories did not change, it was confirmed that the relative importance of the natural and local resource environment decreased and the relative importance of the living environment field increased significantly. Over time, the importance of plants and wildlife increased, the importance of landscapes and topographic geology decreased, the importance of wetlands and caves increased, and the importance of Gotjawal, natural monuments, and cultural history decreased. In the living environment category, the importance of water pollution increased significantly, and in the humanities and social environment category, the importance of population increased and the importance of industry decreased. It is judged that most changes in item importance are largely influenced by changes in the background of the times and overall perception. It was confirmed that the importance of plants, wildlife, wetlands, and caves with relatively high awareness and the importance of water pollution, which is emerging as a regional problem, have all increased significantly due to structural problems of population age.

Status and Prospects of the Korean National Environmental Health Survey (KoNEHS) (국민환경보건기초조사의 현황 및 전망)

  • Park, Choonghee;Yu, Seung Do
    • Journal of Environmental Health Sciences
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    • v.40 no.1
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    • pp.1-9
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    • 2014
  • Objectives: The purpose of this review is to suggest future directions for the Korean Environmental Health Survey (KoNEHS) in terms of an environmental health monitoring system and recent environmental health issues in Korea. Methods: The national scale biomonitoring program and environmental health researches which conducted by Ministry of Environment was reviewed for this study. The scope, contents and utilization of results of KoNEHS as a biomonitoring program and other basic function for environmental health monitoring was analyzed. Results: Biomonitoring survey was conducted for basic functions, such as evaluating exposure levels of environmental chemicals and analyzing exposure factors. In order to expand the basic purposes of KoNEHS, the biomonitoring function should be strengthened by enlarging the range of chemicals analyzed and including all age groups in the biomonitoring and health status monitoring functions by using official health-care and mortality data. Exposure factors such as time-activity patterns and micro-environmental pollution levels were studied. The data from the environmental health study were established into a standardized database system for supporting environmental health policy. A definition and concept of environmental health services should be established. Conclusion: To achieve the aims of environmental health, changes in environmental health status and related factors must be observed and predicted reflecting real conditions. In this regard, improving the methodology and system through diverse approaches is necessary for KoNEHS.

A Survey of Attitudes toward to, Values and Expectation of Environmental Education of korean students and Teachers (초.중등 학생 및 교사의 환경교육에 관한 의식 조사)

  • 최돈형
    • Hwankyungkyoyuk
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    • v.2 no.1
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    • pp.5-33
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    • 1991
  • The purpose of the study was to investigate attitudes toward to, values and expectations of environmental education of Korean students and teachers and to provide basic data and reference materials needed to development of environmental education curricula for primary and secondary schools. A review of the related literature, a series of conferences with teachers and specialists in environmental education and environmental sciences. and questionnaire survey were methods employed in this study. Survey question were developed to explore attitude and responses of primary and secondary school students and teachers on various types of issues and problems of environmental education at personal level as well as on their future prospects attitudes values and expectations with which had been dealt in this study were categorized into personal feeling on environmental issues and problems at both national and regional levels issues and problems of current environmental education pre service and in service training of teachers for environmental education instruction and so on. The sample population for the survey was selected by using the stratified cluster and random sampling techniques with respect to regional area, school level, sex and grade, The subjects used in this study were 1,633 students and 385 teachers of primary and secondary schools across the country. The results of the survey were summed up and recommendations to be considered in the revision of sixth national curricula for primary and secondary schools were also suggested.

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A Review of the Survey Method of the Korean National Household Travel Survey: Focusing on the Comparison of International Cases

  • Gim, Tae-Hyoung Tommy;Cho, Hyung-Wook;Kim, Moon-Hyun;Park, Jae-Hee;Bayarsaikhan, Tsolmon;Joo, Hee-Soo
    • Land and Housing Review
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    • v.13 no.1
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    • pp.85-98
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    • 2022
  • The increasing use of various types of data to capture travel behavior relatively discredits the utility of traditional national-scale household travel surveys. However, the surveys are still arguably meaningful in their clarification of purposes and means of travel. Accordingly, this study reviews travel survey cases and related literature, to identify the status of the Korean National Household Travel Survey (KNHTS). It discusses improving the KNHTS's survey method, focusing on its long investigation cycle, short survey period, reduction in sample size, and questionnaire format biased toward mandatory travel. To address these issues, this study suggests reducing the survey cycle, conducting a year-round survey, combining weekday and weekend surveys, and specifying items on nonmandatory travel. These practical suggestions duly consider the validity and reliability of the KNHTS within budget constraints and its applicability to related fields, such as tourism, public health, and sociology.

Status and Development of National Ecosystem Survey in Korea (우리나라 전국자연환경조사 현황과 발전방안)

  • Kim, Chang-Hoe;Kang, Jong-Hyun;Kim, Myungjin
    • Journal of Environmental Impact Assessment
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    • v.22 no.6
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    • pp.725-738
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    • 2013
  • The National Ecosystem Survey in Korea provides information to policy makers for preservation of natural environment and implementation of international agreement. The 1st and 2nd National Ecosystem Survey were carried out between 1986 and 1990, and between 1997 and 2005, respectively. The 3rd National Ecosystem Survey began in 2006 and ended in 2012. In 2013 the pilot survey for the 4th National Ecosystem Survey is ongoing. The 4th National Ecosystem Survey due to the revision of the Natural Environment Conservation Act which has been done every 10 years would change into every five years. It is planned to be conducted from 2014 to 2018. The survey method of the 4th National Ecosystem Survey has been modified to obtain more accurate data for many taxa. The survey for a nocturnal animals will be introduced. In addition, monitoring by setting the grid will get quantitative data seasonally. The vegetation survey will be conducted with a mobile device contained files of aerial image maps including classified vegetation map. National Ecosystem Survey will be improved as follows. First, each survey methods suitable for the purpose should be developed. Second, monitoring methods for obtaining quantitative data should be developed. Finally, the research using the data should be developed in the field of not only ecosystem and biological diversity but also habitat assessment.

The Effect of Environmental Instruction on Environmental Attitudes of University Students

  • Woo, Hyung-Taek
    • Environmental Sciences Bulletin of The Korean Environmental Sciences Society
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    • v.4 no.3
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    • pp.157-164
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    • 2000
  • The effect of environmental instruction on students\` environmental attitudes was studied in two environmental classes and one business class of university undergraduates. Changes in students\` environmental attitudes were assessed from a questionnaire survey administered before and after exposure to a 16 week course. The results indicated statistically significant differences in students\` attitudes toward the environment between the pretest and the posttest. The two environmental classes had the positive effect and the students exhibited more environmentally favorable attitudes. Accordingly, this study confirmed the positive effect of environmental instruction on attitudes toward the environment at a university level.

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The Present Status of Subject-Based Environmental Education in Schools (초.중등학교에서의 교과교육을 통한 환경교육 실태)

  • 이선경;최석진;주형선;이용순;박종성
    • Hwankyungkyoyuk
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    • v.14 no.1
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    • pp.107-126
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    • 2001
  • The interest in environmental issues and the awareness of the importance of environmental education have been increasing. This research was carried out in part to respond to such a change, and it aims to search for and suggest ways to strengthen subject-based environmental education in Korea, the most significant part of the formal environmental education. One of the most important of this research was understanding the present status of environmental education of elementary, middle, and high schools in Korea, which was conducted by the questionnaire survey targeted to teachers on the subject-based environmental education. The survey was carried out comprehensively to include respondents from technical and home economics course as well as from vocational high schools. Through this survey, we gained information on the awareness of teachers and students on the objective, learning-teaching strategies and evaluation of environmental education as well as an understanding of the present status of environmental education in schools of Korea.

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The perceptions of teachers attended at environmental education program for certificate at environmental education program for certificate of the second-major regarding environmental education (환경과 부전공 자격연수 참여 교사들의 환경교육에 대한 인식 조사)

  • Choi, Kyung-Hee;Park, Jong-Yoon
    • Journal of The Korean Association For Science Education
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    • v.15 no.3
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    • pp.316-324
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    • 1995
  • The purpose of this study was to investigate the perceptions of teachers attended at the first environmental education program for certificate of the second-major regarding environmental education and to provide reference materials for development of environmental education program and environmental textbooks. A survey methodology was used in the study. A survey, having 13 items, was developed by the researchers. The subjects consisted of 80 teachers. Teachers revealed their opinions about six categories of the survey including environmental subjects, environmental problems, middle school environmental textbook, their knowledge concerning environment, the time taught in school about environment, and teachers education. Results from teachers' data suggested directions for improvement of environmental education program and environmental textbooks.

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