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原文連結
論文資訊
- 類型：已發表論文
- 日期：2017-05-13
摘要
Humans are both fertilizing the world and depleting its soils, decreasing the 多樣性 of aquatic ecosystems and terrestrial plants in the process. We know less about how nutrients shape the abundance and 多樣性 of the prokaryotes, fungi, and invertebrates of Earth's soils. Here we explore this question in the soils of a Panama 森林 subject to a 13-yr fertilization with factorial combinations of nitrogen (N), phosphorus (P), and potassium (K) and a separate micronutrient cocktail. We contrast three hypotheses linking biogeochemistry to abundance and 多樣性. Consistent with the Stress Hypothesis, adding N suppressed the abundance of invertebrates and the richness of all three groups of organisms by ca. 1 SD or more below controls. Nitrogen addition plots were 0.8 pH units more acidic with 18% more excha
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