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Oecologia

, Volume 188, Issue 2, pp 441–450 | Cite as

The effects of changes in water and nitrogen availability on alien plant invasion into a stand of a native grassland species

  • Yanjie LiuEmail author
  • Min Liu
  • Xingliang XuEmail author
  • Yuqiang Tian
  • Zhen Zhang
  • Mark van Kleunen
Population ecology – original research

Abstract

Plant invasions are a major component of global change, but they may be affected by other global change components. Here we used a mesocosm-pot experiment to test whether high water availability, nitrogen (N) enrichment and their interaction promote performance of three invasive alien plants (Lepidium virginicum, Lolium perenne and Medicago sativa) when competing with a native Chinese grassland species (Agropyron cristatum). Single plants of the three invasive and the one native species were grown in the center of pots with a matrix of the native A. cristatum under low, intermediate or high water availability and low or high N availability. The invasive species L. virginicum and M. sativa grew larger, and produced a higher biomass relative to competitors than the native species A. cristatum did. Increasing water availability promoted biomass production of all species, but water availability did not change the biomass of the central plants relative to that of the competitors. Nitrogen addition also increased biomass production of all species, and it increased the biomass of the central plants more so than that of the competitors. The positive effect of N addition on the biomass of the central plants relative to that of the competitors increased with increasing water availability. However, compared to central plants of the native species, the positive effect of N addition on the relative biomass of L. virginicum decreased when water availability increased. These interactions indicate that future changes in water availability and N enrichment may affect the invasion success of different alien species differently.

Keywords

Exotic Global change Non-native Plant invasion Plant–plant interaction 

Notes

Acknowledgements

We thank Huimin Li and Jingjing Song for their help in the field. This study was supported by National Natural Science Foundation of China (nos. 31470560 and 31540051). We thank Christa Gommel for English editing.

Author contribution statement

YL conceived the experiments. YL and XX designed the experiments. ML performed the experiments and collected data. YL and MvK analyzed the data. YL wrote the first draft, with further inputs from ML, XX, ZZ, YT and MvK.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

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Supplementary material 1 (DOCX 31 kb)
442_2018_4216_MOESM2_ESM.docx (32 kb)
Supplementary material 2 (DOCX 32 kb)
442_2018_4216_MOESM3_ESM.docx (36 kb)
Supplementary material 3 (DOCX 35 kb)
442_2018_4216_MOESM4_ESM.docx (44 kb)
Supplementary material 4 (DOCX 44 kb)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijingChina
  2. 2.Ecology, Department of BiologyUniversity of KonstanzKonstanzGermany
  3. 3.University of Chinese Academy of SciencesBeijingChina
  4. 4.State Key Laboratory of Earth Surface Processes and Resource Ecology, Center for Human-Environment System Sustainability (CHESS)Beijing Normal UniversityBeijingChina
  5. 5.School of Resources and EnvironmentAnhui Agricultural UniversityHefeiChina
  6. 6.Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and ConservationTaizhou UniversityTaizhouChina

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