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자료유형
학술대회자료
저자정보
나상일 (농촌진흥청) 박종화 (충북대학교) 홍석영 (농촌진흥청) 김이현 (농촌진흥청) 이경도 (농촌진흥청) 장소영 (농촌진흥청)
저널정보
한국토양비료학회 한국토양비료학회 학술발표회 초록집 2013 춘계학술발표회 논문 초록집
발행연도
2013.5
수록면
88 - 98 (11page)

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The objective of this study was the prediction of paddy rice yield using the meteorological data and Terra MODIS NDVI in South Korea based on the RS/GIS techniques; its applicability was to be reviewed. A multiple linear regression analysis was carried out by using the NDVI extracted from MODIS satellite images and six meteorological elements including mean temperature, maximum temperature, minimum temperature, rainfall, accumulated rainfall and duration of sunshine. Models were developed by whole country and nine agro-climatic zones. The optimal regression model was suggested by using stepwise in the extraction of independent variables. To evaluate on the applicability of the models, we compared paddy rice yield predicted and presented by the Korean Statistical Information System (KOSIS) in 2011. The significance probability of the regression models, considering all the independent variables used in the analysis, turned out to be less than 0.1% (p<0.001) which represents a statistically significant result. Paddy rice yield in 2011 was estimated to be 505 (±14.63%) ㎏/10a at whole country level and 487 (±14.14%) ㎏/10a by agro-climatic zones in the regression model. Compared with the presented rice yield from KOSIS, the difference from the predicted rice yield was 5.3% and 8.7%, respectively. These implied that the characteristics of changes in paddy rice yield according to NDVI and other meteorological elements were well reflected in the regression model.

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UCI(KEPA) : I410-ECN-0101-2014-520-003364232