昆明地区几种混播草坪质量评价及组合优化

Quality evaluation and optimization of mixture turf in Kunming

为优化、筛选适合昆明地区观赏及运动场草坪混播组合,对当地表现良好的草坪草进行混播建坪,在幼坪和成坪阶段分别观测相关指标,用模糊数学综合评判法评定草坪质量,按照5级分级法评定标准,评判结果为:Z5组合(草地早熟禾肯塔基60%+紫羊茅宝瑞40%),草坪质量较好,达到I级标准;Z4组合(草地早熟禾肯塔基70%+匍匐翦股颖普特30%)、Z1组合(草地早熟禾肯塔基40%+高羊茅红象30%+多年生黑麦草匹克威30%)、Z2组合(高羊茅红象80%+草地早熟禾肯塔基20%)和Z6组合(草地早熟禾优异25%+草地早熟禾蓝月25%+草地早熟禾新哥来德25%+草地早熟禾肯塔基25%),草坪质量尚可,达到Ⅲ级标准;Z3组合(草地早熟禾肯塔基50%+普通狗牙根30%+多年生黑麦草匹克威20%),草坪质量差,仅达到Ⅳ级标准。其中,Z1组合是运动场草坪的最优组合,Z5组合是观赏草坪的最优组合,其草坪质量综合评价值分别达到0.677和0.881,高于实际应用值0.600。

The turfgrass combinations with desirable species were evaluated in Kunming from 2011 to 2012 by measuring the apparent indexes and fuzzy method. The result indicated that Z5 combination （60 % bluegrass ＋40% red rescue） was the best,and which was followed by Z4 （70% bluegrass＋30% creeping bentgrass） ,Z1 （40% bluegrass＋30% tall fescue ＋ 30% perennial ryegrass）,Z2 （80% tall fescue＋20% bluegrass） and Z6 （25 % bluegrass Merit＋25 % bluegrass Bluemoon＋25 % bluegrass Nuglade＋25 % bluegrass Kentucky） and Z3 （50 % bluegrass Kentucky＋ 30 % Cynodon dactylon ＋20 % perennial ryegrass）. The best optimal combination for sport turf was Z1,and the best for ornamental turf was Z5.