0587377 - ÚVGZ 2025 RIV US eng J - Journal Article
Yu, K. - Su, Y. - Ciais, P. - Lauerwald, R. - Ceschia, E. - Makowski, D. - Xu, Y. - Abbessi, E. - Bazzi, H. - Tallec, T. - Brut, A. - Heinesch, B. - Brümmer, C. - Schmidt, M. - Acosta, Manuel - Buysse, P. - Gruenwald, T. - Goll, D.S.
Quantifying albedo impact and radiative forcing of management practices in European wheat cropping systems.
Environmental Research Letters. Roč. 19, č. 7 (2024), č. článku 074042. ISSN 1748-9326. E-ISSN 1748-9326
R&D Projects: GA MŠMT LM2023048
Institutional support: RVO:86652079
Keywords : scale deforestation * surface albedo * land-use * climate * classification * translocation * temperature * vegetation * residue * metrics * surface albedo * management practices * temporal evolution * radiative forcing
OECD category: Meteorology and atmospheric sciences
Impact factor: 6.7, year: 2022
Method of publishing: Open access
https://iopscience.iop.org/article/10.1088/1748-9326/ad5859

Management practices that increase the surface albedo of cultivated land could mitigate climate change, with similar effectiveness to practices that reduce greenhouse gas emissions or favor natural CO2 sequestration. Yet, the efficiency of such practices is barely quantified. In this study, we quantified the impacts of seven different management practices on the surface albedo of winter wheat fields (nitrogen fertilizer, herbicide, fungicide, sowing, harvest, tillage, and crop residues) by analyzing observed daily albedo dynamics from eight European flux-tower sites with interpretable machine learning. We found that management practices have significant influences on surface albedo dynamics compared with climate and soil conditions. The nitrogen fertilizer application has the largest effect among the seven practices as it increases surface albedo by 0.015 +/- 0.004 during the first two months after application, corresponding to a radiative forcing of4.39 +/- 1.22 W m-2. Herbicide induces a modest albedo decrease of 0.005 +/- 0.002 over 150 d after application by killing weeds in the fallow period only, resulting in a magnitude of radiative forcing of 1.33 +/- 1.06 W m-2 which is higher than radiative forcing of other practices in the same period. The substantial temporal evolution of the albedo impacts of management practices increases uncertainties in the estimated albedo-mediated climate impacts of management practices. Although these albedo effects are smaller than published estimates of the greenhouse gas-mediated biogeochemical practices, they are nevertheless significant and should thus be accounted for in climate impact assessments.
Permanent Link: https://hdl.handle.net/11104/0354615