Devegetation affected a number of nutrient reservoirs and processes in the experimental watershed. note that the rate of decomposition was not affected by devegetation because the decomposers were not affected by the treatments and because the plant remains contributed plenty of organic nutrients to the soil to sustain decomposition for the duration of the experiment. drag the labels to indicate the change in the size of the reservoir or the change in the rate of the process as a result of devegetation. labels may be used once, more than once, or not at all.