Articles | Volume 12, issue 11
https://doi.org/10.5194/bg-12-3499-2015
https://doi.org/10.5194/bg-12-3499-2015
Research article
 | 
09 Jun 2015
Research article |  | 09 Jun 2015

Disruption of metal ion homeostasis in soils is associated with nitrogen deposition-induced species loss in an Inner Mongolia steppe

Q.-Y. Tian, N.-N. Liu, W.-M. Bai, L.-H. Li, and W.-H. Zhang

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Short summary
We demonstrate that N addition reduced species richness, acidified soil and disturbed nutrient homeostasis in soil in an Inner Mongolia steppe. We further reveal that an increase in inorganic-N concentration, depletion of base cations (Ca2+ and Mg2+) and mobilization of Mn2+ and Cu2+ in soils were involved in reduction in species richness in the temperate steppe of northern China, highlighting the involvement of nutrient mobilization in decline in species richness of alkaline grasslands.
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