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Acta Prataculturae Sinica ›› 2021, Vol. 30 ›› Issue (10): 26-40.DOI: 10.11686/cyxb2021079

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Effects of trampling intensity on the quality of artificial carpet hybrid turf

Tong-rui ZHANG(), Fu-cui LI(), Lie-bao HAN, Yu-feng CHEN, Gui-long SONG, Ya-nan ZHANG, Jia-bao CHEN, Bin TANG, Wei-hao DOU   

  1. School of Grassland Science,Beijing Forestry University,Beijing 100083,China
  • Received:2021-03-01 Revised:2021-05-06 Online:2021-09-16 Published:2021-09-16
  • Contact: Fu-cui LI

Abstract:

We conducted a plot experiment to evaluate the effects of trampling intensity on the quality and root growth of ‘artificial-natural’ hybrid turfgrass constructed of carpet mesh filled with perennial ryegrass (Lolium perenne) cultivar ‘Neruda 1 BT’. Plots were 0.6 m×1.0 m in area and plots of two carpet mesh types filled with soil were compared with natural turfgrass (control plots) without carpet. We evaluated the performance quality, growth quality, and playing performance under different trampling intensities (no trampling, light trampling, medium trampling, and heavy trampling), as applied using a trampling machine. Under the different trampling intensities, the color, cover, and performance quality were all better in the artificial-natural hybrid turfgrass than in the natural turf. Under trampling conditions, the artificial-natural hybrid turfgrass showed a lower degree of injury than the natural turfgrass, indicating that the artificial carpet protected the turf to some extent. The higher the trampling intensity, the larger the differences in quality between the hybrid turfgrass and natural turfgrass. After 4 weeks of trampling treatments, for the heavy trampling treatment that was most affected, the color score of the two carpet treatments, designated A and C was, respectively 45.5% and 39.0% higher, and the cover was increased by 136.4% and 150.0%, respectively, compared to control plots. Root biomass and root length were greatly reduced in trampling treatments, compared to control plots, but less so in hybrid turfgrass plots. Turfgrass without mat showed 105.3%, 239.1%, and 152.6% greater root length after 4 weeks of light, moderate, and heavy trampling, respectively. Compared with the natural turf control plots, artificial-natural hybrid turfgrass developed increased hardness and soil compaction, and this would further increase the injury danger when used for certain sports. Therefore, appropriate maintenance measures should be taken with artificial-natural hybrid turfgrass incorporating carpet mesh, to avoid the risks associated with a hard playing surface.

Key words: carpet hybrid turf, trampling intensity, turf quality, growth, playing performance