加固材料对运动场移动式草坪质量及坪床性能的影响

Effects of reinforcement materials on the quality and turf-bed performance of turf in a mobile sports field

本研究以高羊茅(Festuca arundinacea)品种‘钛极2LS’为试验材料,以无加固材料运动场移动式草坪为对照(CK),使用践踏器模拟中等强度践踏,分析加固剂和植物纤维对移动式运动场草坪坪观质量、坪床性能及运动质量的影响。结果表明:在践踏两周内,以0.4%纤维网片为加固材料的处理对草坪的色泽、归一化植被指数(NDVI)及坪观质量评价分析表明有显著提升效果(P <0.05),践踏4周后,各处理色泽、NDVI及坪观质量评价分析与CK差异不显著(P> 0.05)。以1%聚氨酯加固剂为加固材料的处理(WOH)可以有效维持土壤紧实度,以纤维与加固剂复合材料(0.4%椰丝+0.1%聚丙烯酰胺)为加固剂的处理(YP)显著提升草坪表面硬度与扭动摩擦,但YP处理会显著增加球员头部损伤风险(P <0.05)。在践踏4周后,坪床结构受到践踏扰动,各加固材料处理的加固性能显著下降(P <0.05)。综上所述,在中等践踏强度下,移动式运动场坪床的加固材料使用土壤加固剂1%聚氨酯可以有效保证坪床的稳定结构,降低球员受伤风险,且能满足高质量运动场的质量要求。

The ‘Titanium^(2)LS’ variety of Festuca arundinacea was used as the test material, and the mobile sports field turf without reinforcement material was used as control(CK). The performance of turf-bed and quality of movement was investigated by simulating medium intensity trampling with a tramper so as to study the effects of curing agents and plant fibers on the quality of mobile sports turf. The results showed that 2 weeks before trampling, 0.4% fiber mesh(XW)treatment significantly improved the color, normalized vegetation index, and turf quality evaluation parameters(P < 0.05).There was no significant difference between results for the quality evaluation analysis of Jipingguan and CK(P > 0.05). 1%polyurethane(WOH) treatment could effectively maintain soil compaction,(0.4% coconut silk + 0.1% polyacrylamide)YP significantly improved surface hardness and torsional friction of turf, whereas YP treatment significantly increased the risk of head injury in players(P < 0.05). After 4 weeks of trampling, the structure of the turf-bed was disturbed by trampling, and the reinforcement performance of each reinforcement material treatment decreased significantly(P < 0.05). To summarize,under moderate trampling intensity, the use of WOH in the reinforcement material in the turf-bed of the mobile stadium can effectively ensure the stable structure of the turf-bed to reduce the risk of player injury and meet the quality requirements of high-quality stadiums.