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Background and Aims <p>Wind erosion is a critical environment filter for dune vegetation assembly. However, single severe and multiple shallow wind erosion events may affect plant performance differently, and in clonal plants such uncoupling may be further complicated by clonal integration (resource sharing between interconnected ramets). Understanding how clonal integration regulates the effects of wind erosion frequency and intensity on plant performance is critical for ecological restoration of dune ecosystems. However, studies of this nature are rare.</p> Methods <p>We grew ramet pairs of the rhizomatous clonal plant, <i>Leymus secalinus</i>, under four simulated wind erosion scenarios. Recipient ramets were subjected to single severe erosion (one removal of 16 cm), multiple shallow erosion (twice removal of 8 cm or four removal of 4 cm) or no erosion. Rhizomes between ramets were left intact or severed (with or without clonal integration).</p> Results <p>Simulated wind erosion significantly reduced the survival and growth of the recipient ramet and growth of the whole clone. These negative effects were stronger following single severe erosion event than under multiple shallow ones. However, clonal integration substantially reduced wind erosion-induced negative effects on survival and growth.</p> Conclusions <p>A single severe wind erosion event is more detrimental to plants than multiple shallow events, and clonal integration promoted tolerance to wind erosion. During the early growing season, implementing windproofing and sand-fixation measures may facilitate the establishment of dune plants. Clonal plants with high degree of clonal integration may serve as suitable species for vegetation restoration in environments where wind erosion occurs frequently.</p>

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Clonal integration affects the responses of a rhizomatous dune plant to single severe and multiple shallow wind erosion events

  • 期刊论文

  • 发表日期：

    2025年8月6日

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  • Qing Wei,
  • Yu-Kun Hu,
  • Xiao-Lu Shen-Tu,
  • Dan-Dan Li,
  • Tian Li,
  • Hai-Tao Miao,
  • Shou-Li Li

摘要

Background and Aims

Wind erosion is a critical environment filter for dune vegetation assembly. However, single severe and multiple shallow wind erosion events may affect plant performance differently, and in clonal plants such uncoupling may be further complicated by clonal integration (resource sharing between interconnected ramets). Understanding how clonal integration regulates the effects of wind erosion frequency and intensity on plant performance is critical for ecological restoration of dune ecosystems. However, studies of this nature are rare.

Methods

We grew ramet pairs of the rhizomatous clonal plant, Leymus secalinus, under four simulated wind erosion scenarios. Recipient ramets were subjected to single severe erosion (one removal of 16 cm), multiple shallow erosion (twice removal of 8 cm or four removal of 4 cm) or no erosion. Rhizomes between ramets were left intact or severed (with or without clonal integration).

Results

Simulated wind erosion significantly reduced the survival and growth of the recipient ramet and growth of the whole clone. These negative effects were stronger following single severe erosion event than under multiple shallow ones. However, clonal integration substantially reduced wind erosion-induced negative effects on survival and growth.

Conclusions

A single severe wind erosion event is more detrimental to plants than multiple shallow events, and clonal integration promoted tolerance to wind erosion. During the early growing season, implementing windproofing and sand-fixation measures may facilitate the establishment of dune plants. Clonal plants with high degree of clonal integration may serve as suitable species for vegetation restoration in environments where wind erosion occurs frequently.