限制灌水对3种草坪外观质量及生理指标的影响  

Effects of Limit Irrigation on the Apperance Quality and Physiological Indicators of Three Kinds of Lawns

作　　者：韩燕[1] 孙晓丹[1] 李海梅[1] 汪中虎 孙颖 李博 

机构地区：[1]青岛农业大学园林与林学院,山东青岛266109 [2]青岛市城阳区气象局,山东青岛266109

出　　处：《安徽农业科学》2015年第33期239-241,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金(31100512);山东省青年基金(BS2012NY005);青岛市科技局项目(13-1-4-165-jch)

摘　　要：[目的]探究限制灌水对草坪外观及生理指标的影响,为草坪草的选择、节水灌溉和科学养护管理提供科学依据。[方法]采用盆栽结合大田试验的方法,以3种主要应用的草坪为研究对象,安排3个试验因子T_1(高羊茅∶黑麦草∶硬羊茅=5∶3∶2)、T_2(高羊茅∶草地早熟禾=4∶1)、T_3(高羊茅单播),在限制灌溉水条件下,对3种草坪在水分胁迫时期内的外观质量、生理指标进行了测定。[结果]随着限制灌水胁迫时间的延长,3种草坪的外观质量逐渐下降,土壤含水量与草坪外观质量间表现出显著的正相关;3种草坪的叶片相对含水量、叶绿素含量和根系活力均随水分胁迫时间的延长而逐渐下降。[结论]T_3草坪下降幅度最大,T_2次之,T_1草坪表现出较好的抗旱性。[Objective] T_o explore effects of limit irrigation on the apperance quality and physiological indicators of lawns,and provide scientific basis for selection of turf grass,water-saving irrigation and scientific conservation. [Method] Using pot and field experiment,three kinds of lawns∶ Festuca arundinacea ∶ Lolium perenne ∶ Hard Fescue = 5 ∶ 3 ∶ 2（ T_1）,Festuca arundinacea∶ Poa pratensis = 4 ∶ 1（ T_2） and Festuca arundinacea unicast（ T_3） were adopted as the reseach object,under the condition of limit irrigation,the appearance quality and physiological indicators of three kinds of lawns during the stress period were measured. [Result] T_he results were as follows： As the stress time in the condition of limit irrigation,the appearance quality of the three lawns gradually decreased,soil moisture content and lawns appearance showed a significant positive correlation. T_he leaf water content,chlorophyll content and root activity indicators of three kinds of lawns were all decreased gradually as the stress time. [Conclusion]T_3had the largest decline,then T_2,and T_1 lawn showed the best drought resistance.

关 键 词：草坪 限制灌水 外观质量 生理指标 

分 类 号：S314[农业科学—作物栽培与耕作技术]