• Title/Summary/Keyword: Rural environment

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Characterization of a Novel Cucumber mosaic virus Isolated from Petunia hybrida

  • Han, Kyung-Sook;Choi, Gug-Seoun;Chung, Bong-Nam;Cho, Jeom-Duk;Cho, In-Sook;Kim, Kee-Hong;Kim, Su;Yoon, Ju-Yeon;Choi, Seung-Kook
    • The Plant Pathology Journal
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    • v.28 no.3
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    • pp.299-305
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    • 2012
  • Petunia hybrida is commonly used in landscapes and interiors for its attractive flower. Virus-like foliar symptoms, including a mosaic with dark green islands surrounding the veins and chlorosis on the leaf margins, were observed on a petunia plant from Icheon, Gyeonggido, Korea. Cucumber mosaic virus (CMV) was identified in the symptomatic petunia by serological testing for the presence of CMV coat protein (CP) with a direct antibody-sandwich-enzyme-linked immunosorbent assay. An agent was mechanically transmitted to indicator plant species including Chenopodium quinoa. Examination of the inoculated plant leaves by RT-PCR analysis and electron microscopy revealed the presence of specifically amplified CP products and spherical virions of approximately 28 nm in diameter, respectively, providing confirmation of a CMV infection. Analysis of CP sequences showed that CMV petunia isolate (CMVYJC) shared 82.5-100% amino acid sequence identity with CPs of representative CMV strains. Phylogenetic analysis of CPs supports that CMV-YJC is a member of CMV subgroup IA (CMV-IA) and has biological properties of CMV-IA on host species. To our knowledge, this is the first report of CMV from P. hybrida in Korea.

A Study on the Estimation Methods of Nonpoint Pollutant Unit Load - Focus on Nonpoint Pollutant Unit Load in Paddy Field - (비점오염 발생 원단위 산정방법에 대한 고찰 - 논 비점오염 원단위를 중심으로 -)

  • Choi, DongHo;Choi, Soon-Kun;Kim, Min-Kyeong;Hur, Seung-Oh;Hong, Sung Chang;Yeob, So-Jin;Yoon, KwangSik
    • Journal of The Korean Society of Agricultural Engineers
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    • v.61 no.3
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    • pp.15-22
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    • 2019
  • In order to preserve water environment, Total Maximum Daily Load(TMDL) is used to manage the total amount of pollutant from various sources, and the annual average load of source is calculated by the unit load method. Determination of the unit load requires reliable data accumulation and analysis based on a reasonable estimation method. In this study, we propose a revised unit load estimation method by analyzing the unit load calculation procedure of National Institute of Environment Research(NIER) method. Both methods were tested using observed runoff ratio and water quality data of rice paddy fields. The estimated values with the respective NIER and revised NIER methods were highly correlated each other. However, the Event Mean Concentration(EMC) and the runoff ratio considered in the NIER method appeared to be influenced by rainfall classes, and the difference in unit load increases as the runoff and EMC increase. The error can be further increased when the EMC and runoff ratio are changed according to changes in rainfall patterns by climate change and change of agricultural activities. Therefore, it is recommended to calculate unit load by applying the revised NIER method reflecting the non point pollution runoff characteristics for different rainfall classes.

The Evaluation of Agricultural Functions for Public Benefits by Delphi Method (델파이기법을 통한 농촌의 공익적 기능 평가)

  • Kim, Eun-Ja;Lee, Han-Ki;Youn, Yeo-Chang
    • Journal of Korean Society of Rural Planning
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    • v.7 no.2 s.14
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    • pp.55-64
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    • 2001
  • The objectives of this study were 1) to evaluate the environmental and social cultural public benefits but a food supply, 2) to revalue the importance of rural and rural living, This study was carried out through review of literature, a delphi technique, a case study. It was mainly used the delphi technique by expert group. Major findings were as follows ; 1. The public benefits in rural were classified into three categories:(1) social culture (2) natural environment (3) economic & etc. 2. To evaluate the values for public benefits, questionaries were developed by expert group, and the total number of items were 30. 3. There were picked out 12 items on social culture, 10 items on natural environment, and 8 items on economic & etc of public benefits in rural. 4. In the public benefits, a food supply was highest in total 30 items, and water resources contain, emotional-psychological rest, place of environment education, beautiful view, etc were followed in order.

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A Study on the Development Rural Stream Environment Management System Using Object Oriented Programming (OOP) (객체지향기법을 이용한 농촌하천환경관리시스템 개발에 관한 연구)

  • Lee, Sung-Hack;Chung, Ha-Woo;Kim, Dae-Sik;Choi, Jin-Yong
    • Journal of Korean Society of Rural Planning
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    • v.6 no.1 s.11
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    • pp.44-49
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    • 2000
  • The purpose of this study is to develop a rural stream environment management system (RUSEMS) using Object Oriented Programming (OOP). In this study, the management goals of RUSEMS were conceptualized and systemized. The objects which required in RUSEMS were developed, then the method and the attribute of the objects were also devised, and the hierarchy of the objects was constructed by OMT method in this study. The results of the system application showed that RUSEMS was enable to manage, to analyze, and to offer the information about the monitoring, analyzing of the rural stream pollution, and managing pollution source of the watershed and the rural stream environment management for the friendly water space.

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A Study on Residents' Perception of the Rural Village Development Project - Focused on the Comprehensive Improvement of the Seats of Eup and Myeon in General Rural Area Development Projects - (농촌지역 마을개발 사업에 대한 주민 인식도 조사 - 일반 농산어촌개발사업의 읍·면소재지 종합정비를 대상으로 -)

  • Kim, Jeong-Gyu;Kim, Yun-Hag
    • Journal of the Korean Institute of Rural Architecture
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    • v.16 no.4
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    • pp.35-42
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    • 2014
  • This study aimed to explore the methods to provide life service for hinterland villages, which is the biggest function of the seat of myeon in rural areas, and enhance central functions/roles. This study also aimed to provide basic information to establish a direction of the future projects of the seat of myeon through empirical study on the comprehensive improvement projects of the seats of eup and myeon and related demanders' perception for sustainable rural area. Based on the results, a variety of hardware manuals are correspondent with present rural situations in the comprehensive improvement projects of the seats of eup and myeon. Therefore, community-based welfare facilities should be expanded. Also, village infrastructure facilities and village landscape projects should be promoted to improve pedestrian environment. Finally, switching into an ecological environment project should be considered to improve village environment as well as supply energy saving facilities.

Evaluation and Analysis on the Characteristics of Use and Space of Rural Housing Environment according to Universal Design (유니버설디자인 관점에 따른 농촌지역 주거환경의 공간 및 사용 특성의 평가 분석)

  • Choi, Ryung;Byun, Hea-Ryun
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2008.11a
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    • pp.369-374
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    • 2008
  • In the 21st century, universal design has started to expand as new design value system for the diversity and various need of user: a new design that can reflects the welfare of the society. In addition, the percentage of population over 65 years old has been rising rapidly in Korea, and we are expected to reach 'aged society' with 14.3% of elderly population in 2018. In rural districts, population of the elderly has already reached 'super-aged society' with over 20%. With the rapid increase of the number of the elderly, the need for social service system is rising. For the independent living of the elderly, the dwelling space that supports their lifestyle is the most important factor. In advanced countries, they have proposed the housing for the elderly to keep living in their house, improvement of housing quality that fits the changing various needs of them. Until now, however, the most housing condition that the elderly has lived is poor living environment as below housing standards, especially housing in rural districts is very poor. The purpose of this study was to extract issue of housing in the rural districts in terms of universal design concept and reflecting the cultural and living characteristics of rural districts. With this, additionally, this study make understood about the necessity and important of universal design housing to reflect the characteristics of rural districts. For this study, data were collected from field survey and interview. The major results showed the following. 1) There were very various type of housing in rural districts. Spatial composition and shape was not related to living behavior and cultural characteristics of rural district. 2) The most new constructed housing was similar to urban housing type. It means that housing with respect to living culture of users in rural district must be developed. 3) In rural housing, they all had outdoor building (included storehouse, bathroom/toilet, kitchenet, etc.) relating to a series of work behavior. However, living environment was not to meet needs and characteristics of users.

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Rural residential environment: Identifying trends through text network analysis (텍스트 네트워크 분석을 활용한 농촌 주거환경 연구 동향)

  • Lee, Cha Hee
    • Journal of Korean Society of Rural Planning
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    • v.26 no.1
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    • pp.39-49
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    • 2020
  • The study analyzed the frequency of simultaneous occurrence of keywords presented in a total of 805 papers published in domestic journals from 1995 to 2019 by social network analysis(SNS) method, and examined core keywords of each period(5 years), in order to understand the research trends of the rural residential environment. The main results are as follows. First, as a result of the analysis of centrality, 'Community', 'Tourism' and 'Comprehensive Rural Village Development Project' were the top 3 keywords. Second, examined by each period, the top keywords are 'Eco Friendly' in 2000~2004, 'Tourism' in 2005~2009 and 2010~2014, 'Community' in 2015~2019. Third, comparing the structural characteristics of core keywords 2nd, 3rd, and 4th period, a network centering on 'Tourism' was clearly formed in the 2nd period. 'Tourism' was divided into 'Community' and a movement to form a separate group appeared in the 3rd period. In the 4th period, 'Community' was found to form a network without direct connection with 'Tourism'. The results of this study suggest the trend change of viewpoint for the rural area in the domestic research on rural residential environment. It has been confirmed that while the research had been carried out with the viewpoint of rural area as a 'tourist attraction' or 'sightseeing spot' for the urban citizens until the mid-2010s, in the research of late 2010s the viewpoint has settled down as a 'residential space' or 'space for new economic activities' of a variety of rural residents.

Effects of the Satisfaction Level of Living Environment in Rural Area on the Migration Intension (농촌지역의 생활환경 만족수준이 이주의사에 미치는 효과)

  • Kim, Jungtae;Shin, Dongho
    • Journal of Korean Society of Rural Planning
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    • v.24 no.4
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    • pp.1-13
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    • 2018
  • This study analyzes the effect of the level of satisfaction with the living environment of rural people on migration. The analysis data were used by the Rural Development Administration for the survey of welfare systems for farmers and fishermen in 2017, and samples of 3,776 were used for the analysis. The analysis variables were divided into a group of migrants, a group of permanent residents, and a group of decision-keeping, and the level of satisfaction with the living environment of each of the 10 rural areas was used as an independent variable. According to the analysis results, the basic living base and safety of rural residents were having a positive effect. The results show that the projects for developing rural areas, which increase the basic living base, are making substantial contributions to preventing the breakaway of the rural population. Safety has been neglected in the area of rural planning, but if the level of discontent is not enough, it has had the greatest impact on the livelihoods of rural residents. Welfare and cultural leisure set the main demand level for welfare and cultural leisure to the elderly and vulnerable classes, and interpret it as a result of weakened defense against stress from relocation of residence, difficulty of migration due to low income levels, and migration. Therefore, the paradoxical analysis results could be interpreted as showing that measures to increase the satisfaction of the people on welfare and cultural leisure should be taken.

Study on Reorganization of the Legal System for the Integrated Rural Development (통합적 농촌지역개발 추진을 위한 법체계 개편방안 연구)

  • Park, Chang Won;Kim, Sebin;Lee, Junwoo;Lee, Bohwi;Gim, Uhn-soon;Koo, Seungmo
    • Journal of Korean Society of Rural Planning
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    • v.25 no.2
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    • pp.1-13
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    • 2019
  • The rural development policies and projects in Korea has been implemented with various related acts. For instance, these acts include Framework Act on the National Land, National Land Planning Utilization Act, Special Act on Balanced National Development, etc, enacted by each of adminstration. However, there are some limitations to encourage the variety of rural development policies due to duplication and overlapping between the relevant acts. Nowadays, the fields of rural development have been evolved and integrated not only by agricultural infrastructures but also in various fields such as multi-functional industry including rural tourism, green care, and cultural welfare, etc. Therefore, the current legal system may not effectively accept and support in various rural development policies and projects at all. This study tried to figure out the necessity of reorganization related legal system through the field survey to planners, residents and analysts regarding the correlation between legal systems and projects. For these reasons, this study tried to find out the problem of current legal system and then, suggested alternative methods related to the legal system for integrated rural development. The scope of the study is as follows; 1)correlation analysis between relevant laws and rural development projects. 2)field survey to figure out the legitimacy and validity for the reorganization of the legal system. At last the result of the research has suggested an alternative method to reorganize the legal system and proposed the new legal system with is good for integrated rural development.

Residents' Participation and Satisfaction of the Altered Environment in the Development of Rural Agricultural Area (농촌활성화사업 마을주민의 사업참여도와 마을 환경변화에 대한 만족도)

  • Park, Kyoung-Ok;Lee, Hana
    • Journal of the Korean Institute of Rural Architecture
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    • v.11 no.1
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    • pp.57-66
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    • 2009
  • The purpose of this study is to suggest some ways for the development of rural agricultural area to head. For the purpose, this study analyzed residents' participation in the project and their satisfaction on the change of villages, in consideration with the type of village and its socio-demographic variables. The 101 residents of the 4 villages in Yeoju-gun, Gyeonggi-do, responded the questionnaire. The results are as follows. 1) The most important objective of the development project, responded residents, was to expand sales channel of agricultural products and find profitable vegetation, and they participated in it with eager. The residents, however, showed passive participation in the cleaning, planting and reforming in village. 2) The satisfaction level with the development project averaged 3.09 of 5 in the natural environment, 3.05 of 5 in the spatial environment, 2.58 of 5 in the economic environment, and 3.13 of 5 in the social environment. In every aspect, centralized villages showed more satisfaction than scattered villages, ages of under 60 were more satisfied than over 60, and over high school graduates answered more satisfied than under middle school graduates.

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