Fig. 3: Study design and possible outcomes.
From: Global change factors differ in effect when acting alone and in a multi-factor background
a Treatments were warming, drought, salinity, N deposition, microplastic (tire wear particles), and surfactant. Ten untreated replicates were used as control. Each single factor treatment (+), the combination of all global change factors, and treatments in which one of the factors was dropped (-) were each replicated ten times. The experiment consisted of 140 experimental units in total. b Experimental units were falcon tubes containing 30 g of soil. A pre-weighed toothpick was included for measurement of decomposition rate. After six weeks of incubation, response variables were measured. c To visualize the effect directions of factor addition and subtraction treatments, we show the bootstrapped (n = 100) effect size of factor addition on the x axis and the effect of factor removal on the y axis.
