Abstract: Stitched hybrid turf establishment techniques involve parameters such as stitch density and depth. There are differences in the effectiveness of different stitch density and depth in promoting the growth of turfgrass and enhancing the quality of turf. In this experiment, we used natural turf （CK） as the control, and set up five stitch depth treatments （6 cm, 9 cm, 12 cm, 15 cm, 18 cm） to study the effects of traffic on the quality of turf, root growth and sports quality of stitched hybrid turf with different stitch depth. The results showed that： the increase of rebound rate and surface hardness of stitched hybrid turf with different stitch depth could be slowed down after traffic； the total root length and surface area of the root system were higher than those of the control when the stitch depth was 9 cm and above, and the total volume of the root system of the hybrid turf with 6 cm stitch depth was significantly lower than that of the control； the average diameter of the roots of the turf with 18 cm stitch depth was increased. This study shows that the root morphology parameters can be improved to a certain extent by stitching hybrid turf with a stitch depth of 9 cm or more, which can improve the quality and sports performance of soccer field turf after traffic, among which, the 18 cm depth of stitching has the most prominent effect, and it is not recommended to plant hybrid turf with a stitch depth of 6 cm.

Key words: Stitched hybrid turf, Stitch depth, Traffic, Turf quality

摘要： 植丝混合草坪建植技术涉及植丝密度和深度等参数。不同的植丝密度和深度在促进草坪草生长、提升草坪质量的有效性方面存在差异。本试验以纯天然草坪（CK）为对照,设置5 种植丝深度处理（6 cm,9 cm,12 cm,15 cm,18 cm）,研究践踏对不同植丝深度混合草坪坪观质量、根系生长和运动质量的影响。结果表明：各植丝深度混合草坪在践踏处理后均能减缓反弹率和表面硬度的增大；植丝深度在9 cm及以上时,根系总根长、根表面积都高于对照,6 cm植丝深度混合草坪根系总体积显著低于对照。18 cm植丝草坪根的平均直径提升。本研究表明9 cm 以上植丝式混合草坪均可一定程度提高根系形态参数,因而能提升践踏后足球场草坪质量和运动性能,其中,18 cm深度植丝效果最好,不建议采取6 cm植丝深度进行植丝混合草坪建植。

关键词: 植丝式混合草坪, 植丝深度, 践踏, 草坪质量