Dust from the Gobi Desert can cross the Pacific Ocean and fall on the remote, tropical oceanic islands of Hawaii. What direct impact will this dust most likely have on nutrient cycling in the terrestrial ecosystems of Hawaii?
A) Increased net primary production due to phosphorus addition
B) Increased temperature and higher rates of nitrogen mineralization because of changes in albedo
C) Reduced net primary production due to reduced sunlight
D) Increased net primary production due to iron addition

Question

Quizplus · Accepted Answer

The dust from the Gobi Desert contains phosphorus, which is a limiting nutrient in many ecosystems. Its addition to the soil in Hawaii can enhance nutrient availability, thereby increasing net primary production.

Dust from the Gobi Desert Can Cross the Pacific Ocean