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논문 기본 정보

자료유형
학술저널
저자정보
이동호 (Korea Research Institute for Human Settlements) 고승환 (충북대학교) 박종화 (충북대학교)
저널정보
대한원격탐사학회 대한원격탐사학회지 대한원격탐사학회지 제39권 제1호
발행연도
2023.2
수록면
47 - 63 (17page)
DOI
https://doi.org/10.7780/kjrs.2023.39.1.3

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초록· 키워드

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Unmanned aerial vehicle (UAV) and sensor technologies are rapidly developing and being usefullyutilized for spatial information-based agricultural management and smart agriculture. Until now, there have beenmany difficulties in obtaining production information in a timely manner for large-scale agriculture on reclaimedland. However, smart agriculture that utilizes sensors, information technology, and UAV technology and canefficiently manage a large amount of farmland with a small number of people is expected to become morecommon in the near future. In this study, we evaluated the productivity of forage maize grown on reclaimed landusing UAV and sensor-based technologies. This study compared the plant height, vegetation cover ratio, freshbiomass, and dry biomass of maize grown on general farmland and reclaimed land in South Korea. A biomassmodel was constructed based on plant height, cover ratio, and volume-based biomass using UAV-based imagesand Farm-Map, and related estimates were obtained. The fresh biomass was estimated with a very precise model(R 2=0.97, root mean square error [RMSE]=3.18 t/ha, normalized RMSE [nRMSE]=8.08%). The estimated drybiomass had a coefficient of determination of 0.86, an RMSE of 1.51 t/ha, and an nRMSE of 12.61%. Theaverage plant height distribution for each field lot was about 0.91 m for reclaimed land and about 1.89 m forgeneral farmland, which was analyzed to be a difference of about 48%. The average proportion of the maizefraction in each field lot was approximately 65% in reclaimed land and 94% in general farmland, showing adifference of about 29%. The average fresh biomass of each reclaimed land field lot was 10 t/ha, which wasabout 36% lower than that of general farmland (28.1 t/ha). The average dry biomass in each field lot was about4.22 t/ha in reclaimed land and about 8 t/ha in general farmland, with the reclaimed land having approximately53% of the dry biomass of the general farmland. Based on these results, UAV and sensor-based images confirmedthat it is possible to accurately analyze agricultural information and crop growth conditions in a large area. It isexpected that the technology and methods used in this study will be useful for implementing field-smartagriculture in large reclaimed areas.

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