Assume that soil compaction increases significantly in Riverbend while fertility and organic matter stay the same.



What would most likely happen to Riverbend's plant diversity?


AIt would increase due to better root stability.
BIt would increase due to higher nutrient retention.
CIt would decrease due to reduced air and water flow.
DIt would stay the same since fertility is moderate.

Verified Answer :

Final answer:

Increased soil compaction in Riverbend would likely reduce plant diversity due to diminished air and water flow, which affects root growth and nutrient uptake. Compacted soil limits essential resources needed by many plants to thrive. Consequently, plant diversity is expected to decrease as a result.


Explanation:

Impact of Soil Compaction on Plant Diversity in Riverbend

Soil compaction refers to the process by which soil particles are pressed together, reducing pore space and increasing soil density. In Riverbend, if soil compaction increases significantly while fertility and organic matter remain unchanged, the effects on plant diversity are likely to be negative.

Effects of Soil Compaction

With increased soil compaction, the following factors come into play:

  • Air and Water Flow: Compacted soil has diminished pore spaces, which limits the amount of air and water that can flow through it. This leads to poor root aeration and water retention, crucial for plant health.
  • Root Development: Compacted soil restricts root growth; roots cannot penetrate easily, which can hinder plant uptake of essential nutrients.
  • Plant Diversity: Reduced air and water movement ultimately decreases the plant diversity because many plant species rely on certain soil conditions to thrive.

Therefore, the most likely outcome in Riverbend is that plant diversity would decrease due to reduced air and water flow. The correct answer to the question is:

It would decrease due to reduced air and water flow.


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