Fig. 2: Distribution of Albedo/∆α in the fields on snow-free days during the dormant season (Nov. to Mar.) in Indiana from 2014 to 2022. | Communications Earth & Environment

Fig. 2: Distribution of Albedo/∆α in the fields on snow-free days during the dormant season (Nov. to Mar.) in Indiana from 2014 to 2022.

From: The potential for albedo-induced climate mitigation using no-till management in midwestern U.S. croplands

Fig. 2

The distribution is grouped by fall tillage practices (a), including conventional till, conservation till, and no-till, and by different residue cover percentages (b), including 0–15%, 15–75%, and 75–100%. Each smooth curve represents the spread of albedo or ‘reflectivity’ for one category, for example, in (a), black for no-till management, grey for conventional tillage, and blue for conservation tillage. In both (a) and (b), the distributions differ significantly, as confirmed by the Dunn test, which was chosen because it does not assume normality. In (c), delta albedo (Δα) refers to the albedo of no-till minus the albedo of conventional till from a large ensemble of many random draws from each of their independent distributions. The red vertical solid line is the median albedo, and 0.049 is the standard deviation. The distributions include 40,000–50,000 samples from 2014 to 2022.

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