Which effect increases downslope movement rate during solifluction given saturated active layer conditions?

💡 Explanation

When the active layer is saturated, increased pore water pressure reduces effective stress between soil particles, therefore decreasing shear strength and facilitating faster downslope movement via solifluction. Therefore increased pore water pressure results, rather than decreased organic matter, enhanced root density, or reduced freeze-thaw cycles which stabilize the soil.

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