狗牙根和结缕草草坪的模拟践踏与磨损拟合分析  

Fitting Analysis of Simulated Traffic and Wear of Bermudagrass and Zoysiagrass Turfs

作　　者：王咏琪 丁杰 卫宏健 杨文 葛良法 刘天增 张巨明 WANG Yong-qi;DING Jie;WEI Hong-jian;YANG Wen;GE Liang-fa;LIU Tian-zeng;ZHANG Ju-ming(College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou,Guangdong Province 510642,China;Guangdong Engineering Research Center for Grassland Science,Guangzhou,Guangdong Province 510642,China)

机构地区：[1]华南农业大学林学与风景园林学院,广东广州510642 [2]广东省草业工程技术研究中心,广东广州510642

出　　处：《草地学报》2022年第10期2701-2711,共11页Acta Agrestia Sinica

基　　金：广州市重点研发计划(202103000066);广东省基础与应用基础研究基金项目(2020A1515011261)资助。

摘　　要：草坪耐践踏试验一般采用大型模拟践踏器或小型模拟磨损器进行处理,但二者对草坪造成的损伤程度差别很大,难以直接进行比较。本试验对狗牙根属(Cynodon)和结缕草属(Zoysia)的4个草坪草进行不同强度的磨损器处理与中等强度的践踏器处理,通过表观质量指标变化综合评价草坪耐磨损性和耐践踏性。结果表明,3种强度磨损处理条件下,随着处理时间的增加,4个草坪草的表观质量指标持续下降,践踏处理下草坪草表观质量指标下降幅度更大;4个草坪草经过加权综合评价,其耐践踏性从强到弱排序为:‘兰引Ⅲ号’结缕草>‘Tifgreen’杂交狗牙根>‘青岛’结缕草>普通狗牙根;通过拟合分析发现,草坪的耐践踏性越强,其模拟践踏器与磨损器处理之间的拟合点出现的时间则越晚。试验结果可为草坪草耐践踏品种选育以及小型磨损器与大型践踏器结合用于耐践踏试验研究提供数据支撑和技术参考。Large traffic simulator or small wear simulated machine are generally used in the turf traffic resistance experiment,but the damage degree caused by the two is very different,which makes it difficult to directly compare the research results obtained by different traffic resistance devices.Under three different intensity gradient wear treatments and moderate intensity traffic treatment imposed,traffic tolerance and wear resistance of four turfgrasses of Cynodon Rich.and Zoysia Willd.were comprehensively evaluated based on changes of turfgrass quality indexes on the field experiment.The results showed that the apparent quality indexes of the four turfgrasses continued to decline with the increase of treatment time under the three strength wear treatment conditions.The apparent quality index of turfgrass under traffic treatment decreased more than that under wear treatment.After weighted comprehensive evaluation,the traffic resistance and wear resistance of the four turfgrass ranked from strong to weak as‘Lanyin No.3’zoysiagrass>‘Tifgreen’hybrid bermudagrass>‘Qingdao’zoysiagrass>Common bermudagrass.Through fitting analysis,it was found that the stronger the traffic resistance of turfs,the later the fitting point between the traffic simulator and the wear simulated machine treatment appeared.The experiment results can provide data support and technical reference for the selection and breeding of high traffic tolerance varieties of turfgrass as well as the combination of large traffic simulator with small portable wear simulated machine for turf traffic tolerance tests and study.

关 键 词：践踏 磨损 狗牙根 结缕草 拟合分析 

分 类 号：S688[农业科学—观赏园艺]