Which risk increases when deforestation occurs within an alluvial floodplain upslope sediment source?

💡 Explanation

When deforestation occurs, soil erosion increases substantially because the tree roots no longer bind the soil, leading to increased sediment yield into the alluvial floodplain, and less water absorbance on the deforested slope. Therefore downstream areas experience increased flash flood likelihood, rather than decreased recharge, straightened channels, or nutrient retention. The high erosion rates cause riverbed load increase and make the flooding events stronger and more likely.

• Which outcome occurs when stress exceeds static friction along an existing transform fault?
• Which risk is amplified where deforestation occurs upstream of an alluvial plain undergoing heavy monsoon rainfall?
• Which process limits the height of stratovolcanoes formed at subduction zones?
• Which secondary effect is likely when liquefaction occurs due to earthquake shaking in regions with levees?
• Which geological effect arises from the constant stress-and-release mechanism along a transform fault boundary intersecting continental crust?
• Which process drives the formation of banded iron formations in Precambrian lake deposits?