Sediment bulking in lakes can lead to sediment resuspension and erosion. Five different lake sediments were studied to see how sediment characteristics affect bulking and how bulking affects sediment properties. Labile nutrients and microbial communities play a role in sediment bulking. Sediment bulking increases air proportion and reduces critical shear stress, making sediment more prone to resuspension and erosion. This study helps understand the factors and effects of sediment bulking in aquatic environments.