[Campbell Biology P.857] According to the text, which of the following is NOT a direct conse... | Practice Question

According to the text, which of the following is NOT a direct consequence of excessive irrigation practices?

  • A: Increased biodiversity in aquatic ecosystems.
  • B: Land subsidence due to aquifer depletion.
  • C: Soil salinization, making it too salty for plants.
  • D: Diminished water uptake by plants due to altered soil water potential.

Explanation

The text describes several negative consequences of excessive irrigation, including land subsidence from aquifer depletion and soil salinization, which in turn diminishes water uptake by plants. However, it explicitly states that mineral runoff from fertilizers which can be exacerbated by irrigation can lead to 'explosions in algal populations that can deplete oxygen levels and reduce fish populations,' indicating a reduction in aquatic biodiversity, not an increase.