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http://dx.doi.org/10.5532/KJAFM.2019.21.4.307

Uncertainty-based Decision on Mitigation of Nitrous Oxide Emissions in Upland Soil  

Ju, Okjung (Interdisciplinary Program in Agricultural & Forest Meteorology, Seoul National University)
Kang, Namgoo (Science of Measurement Major, University of Science and Technology)
Lim, Gapjune (Environmental Agriculture Research Division, Gyeonggido Agricultural Research and Extension Services)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.21, no.4, 2019 , pp. 307-316 More about this Journal
Abstract
In the agricultural sector, greenhouse gas emissions vary depending on the interaction of all ecosystem changes such as soil environment, weather environment, crop growth, and anthropogenic farming activities. Agricultural sector greenhouse gas emissions resulting from many of these interactions are highly variable. Uncertainty-based evaluation that defines the interval with confidence level of greenhouse gas emission and absorption is necessary to take account of the variance characteristics of individual emissions, but research on uncertainty evaluation method is insufficient. This study aims to decide on the effect of reducing N2O emissions from upland soils using an uncertainty-based approach. An uncertainty-based approach confirmed whether there was a difference between confidence intervals in the 5 different fertilizer treatment groups to reduce greenhouse gas emissions. Unlike the statistically significant test with three repetition averages, the uncertainty-based approach method estimated in this study is able to estimate the confidence interval considering the distribution characteristics of the emissions, such as the dispersion characteristics of individual emissions. Therefore, it is considered that the reliability of emissions can be improved by statistically testing the variance characteristics of emissions such as the uncertainty-based approach. It is hoped that the direction of the uncertainty-based approach for the effect of reducing greenhouse gas emissions in agriculture will be helpful in the future development of agricultural greenhouse gas emission reduction technology, adaptation to climate change, and further development of sustainable eco-social system.
Keywords
Uncertainty; Nitrous Oxide; Mitigation; NBPT Fertilizer;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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