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Spatio-temporal Change Analysis of Ammonia Emission Estimation for Fertilizer Application Cropland using High-resolution Farmland Data

고해상도 농경지 데이터를 이용한 비료사용 농경지의 암모니아 배출량의 시공간적 변화 분석

  • Park, Jinseon (AgriBio Institute of Climate Change Management, Chonnam National University) ;
  • Lee, Se-Yeon (Department of Rural and Biosystems Engineering, Chonnam National University) ;
  • Hong, Se-Woon (Department of Rural and Biosystems Engineering BK21, AgriBio Institute of Climate Change Management, Chonnam National University) ;
  • Na, Ra (Department of Rural and Biosystems Engineering, Chonnam National University) ;
  • Oh, Yungyeong (Institute of Agricultural Science & Technology, Chonnam National University)
  • 박진선 (전남대학교 농업생명과학대학 기후변화대응 농생명 연구소) ;
  • 이세연 (전남대학교 농업생명과학대학 지역.바이오시스템공학과) ;
  • 홍세운 (전남대학교 농업생명과학대학 지역.바이오시스템공학과 BK21, 기후변화대응 농생명 연구소) ;
  • 나라 (전남대학교 농업생명과학대학 지역.바이오시스템공학과) ;
  • 오윤경 (전남대학교 농업생명과학대학 농업과학기술연구소)
  • Received : 2021.09.25
  • Accepted : 2021.11.22
  • Published : 2021.11.30

Abstract

Ammonia emission from the agricultural sector contributes almost 78% of total ammonia emission in Korea. The current ammonia emission estimation method from fertilizer application has high uncertainty and needs to be improved. In this study, we propose an improvement method for estimating the amount of ammonia emission from agricultural land with improved spatiotemporal resolution using Farm Manager Registration Information System and criteria for the fertilizer. We calculated ammonia emissions by utilizing the 2020 cultivation area provided by Farm Manager Registration Information System for 55 kinds of upland crops cultivated in the field area of the farmland. As a result, soybeans were the most cultivated field crop in 2020, and the area of cultivated land was surveyed at about 77,021 ha, followed by sweet potatoes 22,057 ha, garlic 20004 ha, potatoes 17,512 ha, and corn 16,636 ha. The month with the highest ammonia emissions throughout the year was calculated by emitting 590.01 ton yr-1 in May, followed by 486.55 ton yr-1 in March. Hallim-eup in Jeju showed the highest ammonia emission at 117.50 ton yr-1.

Keywords

Acknowledgement

본 연구는 농촌진흥청 국립농업과학원 농업과학기술연구개발사업(과제번호: PJ014206032021)의 지원에 의해 수행되었으며, 이에 감사드립니다.

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