Final answer:
A beach sees an increase in sediment budget through a higher rate of sediment deposition from river transport to the coast, which deposits silt and builds up the beach.
Step-by-step explanation:
A beach would generally see an increase in sediment budget in the situation where there is a higher rate of sediment deposition from river transport to the coast. Sediment deposition occurs when rivers with high silt content reach the ocean or large lakes, causing the water to slow down dramatically and the silt to settle. This can build deltas or estuarine areas, depending on the ocean currents and wave action. Factors that contribute to sediment budget include the rate of sediment deposition from rivers, coastal erosion levels, human interference such as construction and dredging, and natural vegetation that stabilizes the soil against erosion.
It's important to note that activities such as dredging can damage beach ecosystems and lead to greater storm impact on shorelines. Deforestation and farming can also double the amount of sediment discharged into the oceans, adversely affecting coral reefs. Meanwhile, decreased erosion due to less storm activity or increased vegetative cover can help maintain or increase the sediment budget of beaches.