• 제목/요약/키워드: Agricultural and urban area

검색결과 431건 처리시간 0.028초

NOAA-AVHRR 자료를 이용한 1 km 해상도 벼논 피복의 간이분류법 (A Simple Method for Classifying Land Cover of Rice Paddy at a 1 km Grid Spacing Using NOAA-AVHRR Data)

  • 구자민;홍석영;윤진일
    • 한국농림기상학회지
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    • 제3권4호
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    • pp.215-219
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    • 2001
  • 기후변화 예측 및 영향평가, 수치대기모형의 개선, 농업 및 산림생태계 관리 등 지역 및 지구규모에서 최신의 지표피복정보를 요구하고 있으나 NOAA-AVHRR을 이용하는 기존의 분류체계에서는 우리나라의 주요 식생인 벼논이 독립적으로 분류되지 못했다. Landsat-TM 등 상업적 위성자료를 이용할 경우 벼논의 정밀한 분류가 가능하나 갱신에 많은 노력과 시간이 필요하여 실용적이지 못하다. 본 실험에서는 쉽게 구할 수 있는 NOAA-AVHRR자료를 사용하되, 벼 군락의 시기별 분광특성차를 벼논피복의 검출에 이용하여 간단하면서도 신뢰성 있는 결과를 얻었다. 5월과 8월의 식생지수값의 지리적 분포특성에 근거하여 각각 유사한 특성을 가진 4개 그룹(도시, 삼림, 수역, 농경지)으로 나누고, 8월에 삼림으로 분류된 화소들 가운데 5월에는 수역으로 분류되는 화소들만 발췌하여 벼논으로 간주하는 방법이다. 이 방법에 의해 벼논으로 분류된 화소들을 1,455개 읍면 단위로 취합하여 재배 면적 및 그 분포를 농림부 통계자료와 비교한 결과 이 방법이 USGS의 분류방법 보다 정확하며 신뢰성이 있는 것으로 나타났다.

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멧돼지(Sus scrofa) 서식지 및 이동 특성을 고려한 연결성 모델링 연구 (A Study on the Connectivity Modeling Considering the Habitat and Movement Characteristics of Wild Boars (Sus scrofa))

  • 이현정;김휘문;김경태;정승규;김유진;이경진;김호걸;박찬;송원경
    • 한국환경복원기술학회지
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    • 제25권4호
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    • pp.33-47
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    • 2022
  • Wild boars(Sus scrofa) are expanding their range of behavior as their habitats change. Appearing in urban centers and private houses, it caused various social problems, including damage to crops. In order to prevent damage and effectively manage wild boars, there is a need for ecological research considering the characteristics and movement characteristics of wild boars. The purpose of this study is to analyze home range and identify land cover types in key areas through tracking wild boars, and to predict the movement connectivity of wild boars in consideration of previous studies and their preferred land use characteristics. In this study, from January to June 2021, four wild boars were captured and tracked in Jinju city, Gyeongsangnam-do, and the preferred land cover type of wild boars was identified based on the MCP 100%, KDE 95%, and KDE 50% results. As a result of the analysis of the home range for each individual, it was found that 100% of MCP was about 0.68km2, 2.77km2, 2.42km2, and 0.16km2, and the three individuals overlapped the home range, refraining from habitat movement and staying in the preferred area. The core areas were analyzed as about 0.55km2, 2.05km2, 0.82km2, and 0.14km2 with KDE 95%., and about 0.011km2, 0.033km2, 0.004km2, and 0.003km2 with KDE 50%. When the preferred land cover type of wild boar was confirmed based on the results of analysis of the total home range area and core area that combined all individuals, forests were 55.49% (MCP 100%), 54.00% (KDE 95%), 77.69% (KDE 50%), respectively, with the highest ratio, and the urbanization area, grassland, and agricultural area were relatively high. A connectivity scenario was constructed in which the ratio of the land cover type preferred by the analyzed wild boar was reflected as a weight for the resistance value of the connectivity analysis, and this was compared with the connectivity evaluation results analyzed based on previous studies and wild boar characteristics. When the current density values for the wild boar movement data were compared, the average value of the existing scenario was 2.76, the minimum 1.12, and the maximum 4.36, and the weighted scenario had an average value of 2.84, the minimum 0.96, and the maximum 4.65. It was confirmed that, on average, the probability of movement predictability was about 2.90% better even though the weighted scenario had movement restrictions due to large resistance values. It is expected that the identification of the movement route through the movement connectivity analysis of wild boars can be suggested as an alternative to prevent damage by predicting the point of appearance. In the future, when analyzing the connectivity of species including wild boar, it is judged that it will be effective to use movement data on actual species.

국립공원 구역 조정이 토지이용 변화 및 가격에 끼친 영향 - 월악산국립공원을 중심으로 - (Effect of Land Use Change and Price from the Area Adjustment of National Park in Korea - A Case Study of Woraksan National Park -)

  • 전근철;남진;조우
    • 한국환경생태학회지
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    • 제32권6호
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    • pp.639-645
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    • 2018
  • 본 연구는 제2차 국립공원 구역조정 시기(2010년~2011년) 해제된 지역의 용도지역, 건축물 조성 등 실제 건축 행위, 토지이용환경, 개별공시지가 등 사회 환경적 요인의 변화를(2011년${\rightarrow}$2018년), 같은 기간 존치지역의 사회 환경 요인과 비교를 통해 구역조정 영향을 분석하고자 하였다. 그리하여 제2차 국립공원 구역조정의 문제점을 파악하고 제3차 구역조정시의 대안적 시사점을 모색하고자 하였다. 해제지역의 용도지역은 계획 생산 보전관리지역으로의 변화가 약 80.4%로 가장 높았고, 농림지역으로 변화가 15.6%였으며 4.0%는 자연환경보전지역으로 유지되어 변화가 없었다. 건축물 조성 규모 변화는 해제지역은 2011년 이후 약 $106m^2$의 평균 건축이 이루어 진 반면 존치지역은 $91m^2$의 평균 건축이 진행된 것으로 분석되었다. 토지이용환경의 변화 요소로써 자연지역에서 인공지역으로의 변화율은 해제지역이 1.9%였고 존치지역은 0.7%로써 해제지역의 변화율이 높았다. 개별공시지가는 해제지역의 증가량은 11,911원이었고 존치지역은 4,413원으로 두 지역 모두 상승하였으며, 두 지역 간 공시지가 차이는 약 2.5배에 달했다. 국립공원내 지역주민의 사유재산권에 대한 문제는 중요한 과제이나 제2차 국립공원 구역조정으로 상당수 해소 되었으므로 이후에는 공원용도지구계획과 공원시설계획에 대한 면밀한 분석으로 합리적 대안을 제시함으로써 공원 주민의 편익을 도모할 필요가 있다. 또한 공원관리청이 주민과 상생 협력하고 국립공원내 거주민으로서 자부심을 가질 수 있도록 지원 체계 마련이 필요할 것으로 판단된다.

효율적 비오톱유형 관리를 위한 적용개념 및 방향 제안 (The Suggestion of Applicable Concepts and Directions for the Effective Management on Biotope Types)

  • 최일기;이은희
    • 한국환경복원기술학회지
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    • 제14권1호
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    • pp.1-10
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    • 2011
  • The purpose of this study is to derive the actually applicable directions and measures for conservation and restoration according to biotope types. Recently biotope project-installing eco-river, restoring damaged area, protecting habitate for flora and fauna- is processed according to being interested in making and restoring the biotope. But it is lack of study to estimate and systematize which biotope preserve and restore primary. For this purpose, the direction and measures of conservation and restoration be applicable to actuality are drafted by a review on the preceded case studies until now at the inside and outside of the country. And then this study proposed the concept, direction and measures for the effective systematic biotope management through continual feed back such as field applications in selected case study areas and consultations. First, the applicable directions and measures for conservation and restoration according to biotope types is suggested with the 'conservation' divided into two parts; protection and maintenance, the 'restoration', and the 'enhancement' divided into two parts; improvement and creation. Second, for the effective biotope management, the biotope types are classified into urban type, agricultural types and natural types according to the naturalness and dominant landscape. However, this study suggests that the direction and measures suitable to the regional conditions should be reviewed enough and selected and also the detail measures should be supplemented with the foundation of directions and measures for biotope conservation and management proposed in this study because the biotope management should consider regional characteristics.

Vulnerability AssessmentunderClimateChange and National Water Management Strategy

  • Koontanakulvong, Sucharit;Suthinon, Pongsak
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2016년도 학술발표회
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    • pp.204-204
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    • 2016
  • Thailand had set the National Water Management Strategy which covered main six areas in the next 12 years, i.e., by priority: (1) water for household, (2) water for agricultural and industrial production, (3) water for flood and drought management, (4) water for quality issue, (5) water from forest conservation and soil erosion protection, (6) water resources management. However due to the climate change impact, there is a question for all strategies is whether to complete this mission under future climate change. If the impact affects our target, we have to clarify how to mitigate or to adapt with it. Vulnerability assessment was conducted under the framework of ADB's (with the parameters of exposure, sensitivity and adaptive capacity) and the assessments were classified into groups due to their different characteristic and the framework of the National Water Management Strategy, i.e., water supply (rural and urban), water for development (agriculture and others), water disasters (floods (flash, overflow), drought, water quality). The assessments identified the parameters concerned and weight factors used for each groups via expert group discussions and by using GIS mapping technology, the vulnerability maps were produced. The maps were verified with present water situation data (floods, drought, water quality). From the analysis result of this water resources management strategy, we found that 30% of all projects face the big impacts, 40% with low impact, and 30% for no impact. It is clear that water-related agencies have to carefully take care approximately 70% of future projects to meet water resources management strategy. It is recommended that additional issues should be addressed to mitigate the impact from climate risk on water resource management of the country, i.e., water resources management under new risk based on development scenarios, relationship with area-based problems, priority definition by viewpoints of risk, vulnerability (impact and occurrence probability in past and future), water management system in emergency case and water reserve system, use of information, knowledge and technology in management, network cooperation and exchange of experiences, knowledge, technique for sustainable development with mitigation and adaptation, education and communication systems in risk, new impact, and emergency-reserve system. These issues will be described and discussed.

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Epidemiology of Leukemia and Multiple Myeloma in Golestan, Iran

  • Rajabli, Niloofar;Naeimi-Tabeie, Mohammad;Jahangirrad, Ataollah;Sedaghat, Seyed-Mehdi;Semnani, Shahryar;Roshandel, Gholamreza
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권4호
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    • pp.2333-2336
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    • 2013
  • Background: The aim of this paper was to present the incidence rates of leukemia and multiple myeloma (MM) in Golestan province located in northeastern Iran during 2004-2009. Materials and Methods: This was a descriptive cross-sectional study. Data on newly diagnosed (incident) leukemia and MM cases were obtained from collected from Golestan population-based cancer registry. Data was entered into CanReg-4 software. Age standardized incidence rates (ASR) (per 100000 person-years) for leukemia and MM were calculated. Data on Golestan population was obtained from the data of Iranian national census in 2006. Results: Totally, 11036 new cancer cases were registered in GPRC from 2004-2009. Leukemia and MM accounted for 693 and 124 of cases, respectively. The mean age in patients with leukemia and MM was 43.8 and 62.4 years, respectively. The ASRs for leukemia among men and women were 10.4 and 7.8, respectively (p<0.001). The ASRs for MM were 2.1 and 2 in men and women, respectively (p=0.93). The rate of leukemia was significantly higher in rural areas (p=0.02) whereas the incidence of MM was higher in urban areas (p<0.001). Conclusions: Our results showed a high incidence rate of leukemia in Golestan province of Iran. The incidence of leukemia was significantly higher in males and residents of rural areas. High exposure to pesticides and other agricultural related products may be a possible explanation for epidemiological pattern of leukemia in this area. Determining and controlling important risk factors, especially environmental factors, of leukemia may lead to decrease in its burden in Golestan province of Iran.

Analysis of Vitamin $B_{12}$ in the Korean Representative Foods and Dietary Intake Assessment for Koreans

  • Choi, Youn-Ju;Kim, Ji-Yung;Lee, Haeng-Shin;Kim, Cho-Il;Hwang, In-Kyeong;Park, Hye-Kyung;Kim, Tae-Hwa;Oh, Chang-Hwan
    • Food Science and Biotechnology
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    • 제17권2호
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    • pp.262-266
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    • 2008
  • This study was conducted to provide a vitamin $B_{12}$ database for the representative Korean food items and to assess the dietary intake assessment of vitamin $B_{12}$ for Koreans. The vitamin $B_{12}$ content of 106 foods had been determined by high performance liquid chromatography (HPLC) using column switching method. Rich sources of vitamin $B_{12}$ were meats, milk, and egg ($0.3-3.4\;{\mu}g/100g$). Vegetables and fruits contained vitamin $B_{12}$ below limit of detection (LOD). The major food sources for vitamin $B_{12}$ intake were milk (72.0%), meats (22.3%), egg (3.6%), and fishes & shellfishes (2.1%). Mean vitamin $B_{12}$ intake of Koreans was $3.16\;{\mu}g$/person/day. The proportion of population with intake below estimate average requirement (EAR) and above recommended intake (RI) of vitamin $B_{12}$ was 60.7 and 36.5%, respectively. The vitamin $B_{12}$ intake level of young children with 1-2 years which was 834.6% of RI while the intake level of the older adults 50 years and older was only 70.0% of RI. Also, there were regional differences between urban and rural area. The population with intake below RI was larger than that with intake above RI in Korea.

지방자치단체의 주민참여형 마을만들기 사업추진 현황 및 개선방향에 관한 실증 연구 - 전라남도 및 해남군의 관련사업 사례를 중심으로 - (Actual Proof Study on the Participated Design Stands & Improvement Direction of Village Creation supported by local government - Case study of Cheonranam-do & Haenam-gun in South Korea -)

  • 유창균;박성진;송태갑
    • 한국주거학회논문집
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    • 제21권1호
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    • pp.131-139
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    • 2010
  • This study aims to examine the type of residents' participation in village making including the case of "Making Happiness Village" -in the Jeollanam-do province and "Village Making" -in Haenam-gun. The study examines the potential and effects of these projects, draws conclusions and suggests the future direction of village making projects. The results of this study are summarized below. "Making Happiness Village" should be evaluated in detail as it has contributed to the successful and development of traditional Korean residential culture, and has helped to activate and develop agricultural and fishing villages through the improvement of the residential environment and attraction of urban people into the rural area. It also showed the possibility of a project to be settled as a representative of Namdo satisfying the demand for sustainable development. In order to enhance the integrity of a village making project, its master plan must be established and utilized by considering the current status and characteristics of a village, improving its physical environment and seeking a method for economic activation. Policy and economic support from central government and local governments are also required for such a project. The residents' autonomous organization,necessary for unifying the residents' capacity, must organize their own group, such as "Residents' Conference for Village Making (tentative name)" to integrate the existing organizations (women's association, youth group, etc) and establish a conference system to discuss and solve the current issues of the village.

공동체 활동을 기반으로 한 스마트빌리지 기술개발 수요분석 (Demand Analysis of Technology Development for Smart Village based on Community Activities)

  • 박소연;조혜진;정남수
    • 농촌계획
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    • 제26권2호
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    • pp.117-126
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    • 2020
  • In this study, demands of smart technology development were analyzed for rural village communities. Questionnaire items were derived by grasping the current status of information and communication technology. 49 villages in 8 regions were selected and surveys and statistical analysis were conducted. The main results of the study are as follows. First, 92% of community leaders use smartphones, search for information (38%), communicate with the Internet (36%) using smartphones, use KakaoTalk (31%), and Facebook (24%). Second, in the rural and urban exchange activities, promote support information service (51%) and promote method suggestion service (48.5%) showed that the demand for services in promote field was high. It is linked to the creation of economic opportunities. Third, in the income and production activities, demand for distribution services technology (39.3%) was high in the field of production and distribution, and cold chains that help maintain freshness until food, such as meat, fish, and vegetables are delivered to consumers when agricultural products are distributed. The constant temperature control system needs to be actively introduced. Fourth, autonomy activities showed the highest demand for air conditioning and control systems (34.2%) of community building, and the lowest demand for electronic voting (9.4%) and videoconferencing (9.4%) services. Lastly, in the general activity area of the community, the demand for technology of emergency services (37.1%) and health self-diagnosis service (35.4%), which are technologies in the welfare sector, ranked first and second respectively.

Investigation of Vertical Profiles of Meteorological Parameters and Ozone Concentration in the Mexico City Metropolitan Area

  • Benitez-Garcia, Sandy E.;Kanda, Isao;Okazaki, Yukiyo;Wakamatsu, Shinji;Basaldud, Roberto;Horikoshi, Nobuji;Ortinez, Jose A.;Ramos-Benitez, Victor R.;Cardenas, Beatriz
    • Asian Journal of Atmospheric Environment
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    • 제9권2호
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    • pp.114-127
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    • 2015
  • In the Mexico City Metropolitan Area (MCMA), ozone ($O_3$) concentration is still higher than in other urban areas in developed countries. In order to reveal the current state of photochemical air pollution and to provide data for validation of chemical transport models, vertical profiles of meteorological parameters and ozone concentrations were measured by ozonesonde in two field campaigns: the first one, during the change of season from wet to dry-cold (November 2011) and the second during the dry-warm season (March 2012). Unlike previous similar field campaigns, ozonesonde was launched twice daily. The observation data were used to analyze the production and distribution of ozone in the convective boundary layer. The observation days covered a wide range of meteorological conditions, and various profiles were obtained. The evolution of the mixing layer (ML) height was analyzed, revealing that ML evolution was faster during daytime in March 2012 than in November 2011. On a day in November 2011, the early-morning strong wind and the resulting vertical mixing was observed to have brought the high-ozone-concentration air-mass to the ground and caused relatively high surface ozone concentration in the morning. The amount of produced ozone in the MCMA was estimated by taking the difference between the two profiles on each day. In addition to the well-known positive correlation between daily maximum temperature and ozone production, effect of the ML height and wind stagnation was identified for a day in March 2012 when the maximum ground-level ozone concentration was observed during the two field campaigns. The relatively low ventilation coefficient in the morning and the relatively high value in the afternoon on this day implied efficient accumulation of the $O_3$ precursors and rapid production of $O_3$ in the ML.