Rapid plant species loss at high rates and at low frequency of N addition in temperate steppe

Yunhai Zhang, Xiaotao Lü, Forest Isbell, Carly Stevens, Xu Han, Nianpeng He, Guangming Zhang, Qiang Yu, Jianhui Huang, Xingguo Han

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

Humans are both intentionally (fertilization) and unintentionally (atmospheric nutrient deposition) adding nutrients worldwide. Increasing availability of biologically reactive nitrogen (N) is one of the major drivers of plant species loss. It remains unclear, however, whether plant diversity will be equally reduced by inputs of reactive N coming from either small and frequent N deposition events or large and infrequent N fertilization events. By independently manipulating the rate and frequency of reactive N inputs, our study teases apart these potentially contrasting effects. Plant species richness decreased more quickly at high rates and at low frequency of N addition, which suggests that previous fertilization studies have likely over-estimated the effects of N deposition on plant species loss. N-induced species loss resulted from both acidification and ammonium toxicity. Further study of small and frequent N additions will be necessary to project future rates of plant species loss under increasing aerial N deposition.

Original languageEnglish (US)
Pages (from-to)3520-3529
Number of pages10
JournalGlobal Change Biology
Volume20
Issue number11
DOIs
StatePublished - Jan 1 2014

Fingerprint

steppe
Nutrients
Acidification
nutrient
Ammonium Compounds
acidification
Toxicity
Nitrogen
ammonium
species richness
Availability
Antennas
toxicity
loss
rate
plant species
nitrogen
effect

Keywords

  • Acidification
  • Ammonium toxicity
  • Biodiversity
  • Inner Mongolia
  • N addition frequency
  • Peak effect
  • Pulse effect
  • Temperate grassland

Cite this

Rapid plant species loss at high rates and at low frequency of N addition in temperate steppe. / Zhang, Yunhai; Lü, Xiaotao; Isbell, Forest; Stevens, Carly; Han, Xu; He, Nianpeng; Zhang, Guangming; Yu, Qiang; Huang, Jianhui; Han, Xingguo.

In: Global Change Biology, Vol. 20, No. 11, 01.01.2014, p. 3520-3529.

Research output: Contribution to journalArticle

Zhang, Y, Lü, X, Isbell, F, Stevens, C, Han, X, He, N, Zhang, G, Yu, Q, Huang, J & Han, X 2014, 'Rapid plant species loss at high rates and at low frequency of N addition in temperate steppe', Global Change Biology, vol. 20, no. 11, pp. 3520-3529. https://doi.org/10.1111/gcb.12611
Zhang, Yunhai ; Lü, Xiaotao ; Isbell, Forest ; Stevens, Carly ; Han, Xu ; He, Nianpeng ; Zhang, Guangming ; Yu, Qiang ; Huang, Jianhui ; Han, Xingguo. / Rapid plant species loss at high rates and at low frequency of N addition in temperate steppe. In: Global Change Biology. 2014 ; Vol. 20, No. 11. pp. 3520-3529.
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