践踏对坪用高羊茅和草地早熟禾生长的影响  

Effects of traffic stress on growth of tall fescue and Kentucky bluegrass

作　　者：奇凤[1] 郑扬帆[1] 宋桂龙[1] 

机构地区：[1]北京林业大学草坪研究所,北京100083

出　　处：《草业科学》2013年第7期1007-1013,共7页Pratacultural Science

基　　金：交通运输部科技项目--"京承高速公路(沙峪沟-市界段)边坡综合防护及治理技术研究"(2009353311050);国家林业局林业科学技术推广项目--"裸露坡面植被恢复综合技术示范推广"(201131)

摘　　要：以高羊茅(Festuca arundinacea)和草地早熟禾(Poa pratensis)为试验材料,研究了不同践踏强度处理下两种草坪草的分蘖数、草坪质量、草坪色泽、土壤紧实度、地上生物量及地下根系分布状况指标的变化。结果表明,轻度践踏处理可提高分蘖数、草坪质量、草坪色泽和地上生物量,从而提高草坪的坪用价值。坪床土壤紧实度随着践踏强度的增加而递增,且践踏能改变草地早熟禾0～5cm和高羊茅10～15cm的根系分布。The research was made, using tall rescue （Festuca arundinacea） and Kentucky bluegrass （Poa pratensis） as experimental materials, on the changes of number of tillers, turf quality, turf color, ground biomass, soil compaction and troots distribution after different traffic stress treatments on them. It showed that light traffic could improve the number of tillers, turf quality, turf color and ground biomass, then improve the use value of turf. With the inereasing of traffic intensity, soil compaction of flat bed increased and 0--5 cm root distribution of Kentucky bluegrass and 10-15 cm root distribution of tall res- cue were also changed .

关 键 词：践踏处理 分蘖数 草坪质量 土壤紧实度 地下根系分布 

分 类 号：S688.4[农业科学—观赏园艺] S54[农业科学—园艺学]