高羊茅草坪蒸散量与质量关系初探  

The relationship between turfgrass evapo-transpiration and turf quality of Festuca arundinacea

作　　者：王跃栋[1] 刘自学[1] 苏爱莲[1] 

机构地区：[1]北京克劳沃草业技术开发中心,北京100029

出　　处：《草业科学》2011年第7期1263-1267,共5页Pratacultural Science

基　　金：全国牧草种质资源保存与利用项目(070401)

摘　　要：采用单因素随机区组设计,以灌水为试验处理,研究高羊茅(Festuca arundinacea)生育期内不同月份的蒸散量与其草坪质量之间的关系。结果表明,处理Ⅰ(田间持水量100%～80%)、Ⅱ(田间持水量80%～60%)、Ⅲ(田间持水量60%～40%)下,草坪质量与蒸散量有一个界限值,当蒸散量小于此界限值时,草坪质量随草坪蒸散量的增加而增加,且增加的幅度较大;当大于该界限值时,草坪质量不再增加,草坪质量随草坪蒸散量的增大而减小,呈现出抛物线关系。处理Ⅳ(田间持水量40%～萎蔫含水量)条件下,草坪质量与蒸散量在试验期内呈线性关系。不同水分条件下,草坪草蒸散量对草坪质量的影响显著。The trial was ty of Festuca arundinac conducted to determine the relationship between evapo-transpiration and turf quali- ea in the growth moment indicated that the turf quality conditions. quality was quality was The turfg increased not increa rass E with t sed wi T was significantly in changing the turf q he increase th the incre the IF （below 40% field capacity） m grass evapo-transpiration in the trial ty to 100% field capacity, there had of ET wh ase of ET by single random grouping design in Beijing. This study fluenced by the turfgrass ET under the different moisture uality had a limit threshold value, indicating that the turf en the ET was less than the threshold value and the turf while the ET was more than the threshold value. Under oisture condition, the turf quality had linear relations period. When the soil moisture content was between analogical relationship. hip with the turf 60% field capacity to 100% field capacity, there had analogical relationship.

关 键 词：高羊茅 蒸散量 草坪质量 

分 类 号：S688.4[农业科学—观赏园艺] Q945[农业科学—园艺学]