• 제목/요약/키워드: Climate impacts

검색결과 605건 처리시간 0.029초

기후변화가 벼 병해충 피해면적 발생에 미치는 영향분석 (An Analysis of Impacts of Climate Change on Rice Damage Occurrence by Insect Pests and Disease)

  • 정학균;김창길;문동현
    • 한국환경농학회지
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    • 제33권1호
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    • pp.52-56
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    • 2014
  • BACKGROUND: It is known that impacts of climate change on damage occurrence by insect pests and diseases are increasing. The negative effects of climate change on production will threaten our food security. It is needed that on the basis of analysis of the impacts, proper strategies in response to climate change are developed. METHODS AND RESULTS: The objective of this paper is to estimate impacts of climate change on rice damage occurrence by insect pests and diseases, using the panal model which analyzes both cross-section data and time series data. The result of an analysis on impacts of climate change on rice damage occurrence by pest insect and disease showed that the damage occurrence by Rice leaf roller and Rice water weevil increased if temperature increased, and damage occurrence by Stripe, Sheath blight, and Leaf Blast increased if precipitation(or amount of sunshine) increased(or decreased). CONCLUSION: Adaptation strategies, supplying weather forecasting information by region, developing systematical strategies for prevention of damage occurrence by pest insect and disease, analyzing the factors of damage occurrence by unexpected pest insect and disease, enforcing international cooperation for prevention of damage occurrence are needed to minimize the impacts of damage occurrence on rice production.

PRECIS를 이용한 우리나라 기후변화 기상자료의 생성 (Generation of Weather Data for Future Climate Change for South Korea using PRECIS)

  • 이관호
    • 한국태양에너지학회:학술대회논문집
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    • 한국태양에너지학회 2011년도 춘계학술발표대회 논문집
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    • pp.54-58
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    • 2011
  • According to the Fourth Assessment Report of the Inter governmental Panel on Climate Change(IPCC), climate change is already in progress around the world, and it is necessary to start mitigation and adaptation strategies for buildings in order to minimize adverse impacts. It is likely that the South Korea will experience milder winters and hotter and more extreme summers. Those changes will impact on building performance, particularly with regard to cooling and ventilation, with implications for the quality of the indoor environment, energy consumption and carbon emissions. This study generate weather data for future climate change for use in impacts studies using PRECIS (Providing REgional Climate for Impacts Studies). These scenarios and RCM (Regional Climate Model) are provided high-resolution climate-change predictions for a region generally consistent with the continental-scale climate changes predicted in the GCM (Global Climate Model).

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Future flood frequency analysis from the heterogeneous impacts of Tropical Cyclone and non-Tropical Cyclone rainfalls in the Nam River Basin, South Korea

  • Alcantara, Angelika;Ahn, Kuk-Hyun
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2021년도 학술발표회
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    • pp.139-139
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    • 2021
  • Flooding events often result from extreme precipitations driven by various climate mechanisms, which are often disregarded in flood risk assessments. To bridge this gap, we propose a climate-mechanism-based flood frequency analysis that accommodates the direct linkage between the dominant climate processes and risk management decisions. Several statistical methods have been utilized in this approach including the Markov Chain analysis, K-nearest neighbor (KNN) resampling approach, and Z-score-based jittering method. After that, the impacts of climate change are associated with the modification of the transition matrix (TM) and the application of the quantile mapping approach. For this study, we have selected the Nam River Basin, South Korea, to consider the heterogeneous impacts of the two climate mechanisms, including the Tropical Cyclone (TC) and non-TCs. Based on our results, while both climate mechanisms have significant impacts on future flood extremes, TCs have been observed to bring more significant and immediate impacts on the flood extremes. The results in this study have proven that the proposed approach can lead to a new insights into future flooding management.

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기후변화 적응을 위한 도시계획 방안 연구 (A Study on the Method of Urban Planning for Adaptation to Climate Change)

  • 이성희;김정곤
    • 한국기후변화학회지
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    • 제5권3호
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    • pp.257-266
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    • 2014
  • This study aims to understand abnormal climate caused by impacts of climate change and to suggest the direction of urban planning focusing on adaptation to climate change. The study consists of theory consideration and case study(Chicago, Philadelphia, Seattle). As a result, the main impacts of climate change faced by urban areas are heat wave, precipitation, and drought. To prevent these impacts, it is important to prepare methods of urban planning as followings: planning for land use, park and green considering the climate patterns, establishing and managing water resources systems similar to the nature, securing renewable energy resources, and transportation facilities and exterior space with proof against climate. It is especially necessary to introduce infrastructures related to storm water, green roof, shading tree planting, green space, and permeable pavement. Finally, in order to realize urban planning for adaptation to climate change, it is needed to make the detailed and specific goal and strategy for the climate change adaptation plan and to extend the scope from the goals to an action plan, a detailed plan, and a design guideline.

Assessment of climate change impacts on earthdamreservoirsinVietnam

  • Tung, H.T.
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2017년도 학술발표회
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    • pp.189-189
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    • 2017
  • Climate changes have impacted to many sectors including water resources in Vietnam. Vietnam is agricultural development country having more than 6,000 earth dam reservoirs. These reservoirs play a very important role in flow regulation for water supply to economic sectors. In the context of undesirable impacts of climate change such as increasing temparature, evaporation, and changing rainfall and rainfall pattern, water demands and inflow to reservoirs also are being influenced. This leads to changes of resevoir exploitation effects that needs to be assessed for adaptation solutions. This article summarizes evaluations on climate change impacts to 16 reservoirs in 4 regions of North-West, North-East, Central Part, and Central Highland of Vietnam. Research results showed that in the context of climate change, safety of these reservoirs will be decreased from 8% to 20% in both water supply and flood control capacity.

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기후변화에 대한 어업인 인식의 특성 분석 (An Analysis of Fishermen's Perception to Climate Change in Korea)

  • 김봉태;이상건;정명생
    • 수산경영론집
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    • 제45권3호
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    • pp.71-84
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    • 2014
  • This study indicates that 84.5% of fishermen have perceived climate change and 74.9% of fishermen have responded that frequency and intensity of the impacts of climate change are increasing. The results of regression analysis have shown that the level of fishermen experiencing the impacts of climate change differs according to individual's characteristics including age, length of experience, sea area (fishing area) and types of fisheries. About half of the respondents have shown that they are not taking any actions against the effects of climate change. The main reasons are that they either have lack of knowledge on how to respond to the impacts of climate change or have the perception that climate change is irresistible. The majority of respondents have responded that they are not aware of the government's climate change policy and emphasized that it is necessary to have effective countermeasures strengthening the provision of information about climate change policy. The result of perception survey have highlighted that it is essential for the government and the fishermen to share relevant information and to consider method of cooperation.

Variations in Root and Tuber Crops Production due to Climate Change

  • Hwang, Sung-Eun;Chon, Chun-Hwang;Park, Geon-Young
    • 통합자연과학논문집
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    • 제8권2호
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    • pp.135-140
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    • 2015
  • Climate change which occuring the recent abrupt fluctuations in meteorological and climatological elements is bound, brings about more significant impacts and changes in human life One of the most important problems due to the impacts of climate change tends to have been decreased the food production, which is expected to make crop resources more and more important. Accordingly, agricultural meteorology should also become more important. In this study, the correlation between meteorological elements and root and tuber crops (potatoes and sweet potatoes), which are emergency crops, and meteorological elements were analyzed, and the impacts of climate changes on the production of such crops were examined. This study concludes that agriculture and food resources are important, and suggests that we should prepare for changes in crops, the weaponization of food, and the lack of water resources in the future. The meteorological element and crops element correlation analysis results. Sweet potatoes, which are negatively influenced by climate change, need breeding improvement and cultivation method development, and potatoes, which are positively influenced by climate change, require preparations for climate changes that exceed the climatic limit. The variations of agricultural production contributed to changes in crop production. Therefore, the importance of agricultural meteorology and the food crop industry should be fully recognized to prepare for climate change.

텍스트마이닝 기법을 활용한 사회기반시설 기후변화 영향의 공간정보 표출 (Visualizing Spatial Information of Climate Change Impacts on Social Infrastructure using Text-Mining Method)

  • 신하나;류재나
    • 대한원격탐사학회지
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    • 제33권5_3호
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    • pp.773-786
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    • 2017
  • 본 연구는 텍스트마이닝 기법을 사용하여 사회기반시설에 대한 기후변화 영향 데이터들을 추출 및 분석하고, 이들을 행정구역 공간정보와 연계하여 분석 표출하고자 하였다. 우선 전력시설, 교통 도시기반시설, 유류 자원관리시설, 환경시설, 용수공급시설의 사회기반시설 중 다섯 가지(폭염, 한파, 호우, 대설, 강풍) 기후 요소로부터 영향을 많이 받은 시설을 파악하고, 각 시설별로 주요한 영향을 미치는 기후 요소를 분석하였다. 사회기반시설의 기후변화 영향은 시설의 위치에 영향을 받을 것으로 기대되어, 사회기반시설 기후변화 영향을 지역 중심으로 비교 분석 및 시각화 하였다. 연구 결과, 사회기반시설 중 교통 도시기반시설이 기후변화 영향을 가장 많이 받았으며, 사회기반시설에 대한 기후변화 영향은 주로 호우와 대설에 의해 발생하는 것으로 확인되었다. 사회기반시설 기후변화 영향의 공간정보를 분석 및 표출한 결과, 강원도와 서울 지역에 위치한 사회기반시설들이 기후변화 영향을 상대적으로 많이 받은 것으로 나타났다. 본 연구는 텍스트마이닝을 통해 사회기반시설 기후변화 영향에 대한 비정형화된 정보를 추출 및 처리하여 분석하고, 이를 공간정보로 표출 시도하였다는 점에서 의미가 있다.

SIMULATION OF SOIL MOISTURE VARIABILITY DUE TO CLIMATE ORANGE IN NORTHEAST POND RIVER WATERSHED, NEWFOUNDLAND, CANADA

  • A. Ghosh Bobba;Vijay P. Singh
    • Water Engineering Research
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    • 제4권1호
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    • pp.31-43
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    • 2003
  • The impacts of climate change on soil moisture in sub - Arctic watershed simulated by using the hydrologic model. A range of arbitrary changes in temperature and precipitation are applied to the runoff model to study the sensitivity of soil moisture due to potential changes in precipitation and temperature. The sensitivity analysis indicates that changes in precipitation are always amplified in soil moisture with the amplification factor for flow. The change in precipitation has effect on the soil moisture in the catchment. The percentage change in soil moisture levels can be greater than the percentage change in precipitation. Compared to precipitation, temperature increases or decreases alone have impacts on the soil moisture. These results show the potential for climate change to bring about soil moisture that may require a significant planning response. They are also indicative of the fact that hydrological impacts affecting water supply may be important in consider-ing the cost and benefits of potential climate change.

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Developing a tool for quick assessment of climate change impacts on exploitation effect of reservoirs in central provinces of Vietnam

  • Tung, H.T.
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2016년도 학술발표회
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    • pp.200-200
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    • 2016
  • Climate changes have impacted to many sectors including water resources in Vietnam. Vietnam is agricultural development country having a lot of reservoirs. These reservoirs play a very important role in flow regulation for water supply to economic sectors. In the context of undesirable impacts of climate change such as increasing temparature, evaporation, changing rainfall and rainfall pattern, water demands and inflow to reservoirs also are being influenced. This leads to changes of resevoir exploitation effects that needs to be assessed for adaptation solutions. This arcticle summaries the development of a tool for quick assessement of climate change impacts on exploitation effect of reservoir in central provinces of Vietnam.

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