【摘要】 试验在1998年7月～1999年9月年进行。主要采用盖度目测估计法,观测结果表明,此地区适应性较好的草种主要为热性禾草。云南狼尾草、非洲狗尾草和东非狼尾草的覆盖效果好,普通狗牙根和弯叶画眉也较好。云南知风草和非洲狗尾草盖度一直较高而颜色较差。孔颖草和百喜草后期生长势较强、覆盖好。温带禾草中较耐热的高羊茅表现较好。细弱剪股颖和鸭茅耐旱耐热耐贫瘠性较差,次年衰退很快。多年生黑麦草第一年表现好。温带豆科牧草冬春期表现较好。紫花苜蓿较抗旱、耐贫瘠,覆盖好。红三叶的适应性也较好。苗期生长缓慢的草地早熟禾、细叶结缕草和不适应紫色土的碱茅及不适应干旱高燥生境的地毯草在初期覆盖速度很慢,覆盖度始终很小。百喜草和百脉根可选择利用。更多还原

【Abstract】 The experiment was conducted in the area of weathering purple sandy rock from July in 1998 to September in 1999 to investigate the adaptability of some grasses on highway slope by the coverage with the ocular estimate. The results showed that the grasses with good adaptability were mainly tropical or subtropical graminaceous grasses. The coverage of Chinese pennisetum, Crested dogstail and Kikuyu grass were the highest, and that of Common Bermudagrass and Weeping alkaligrass were higher .Although the coverage of Crested dogstail and Korean lovegrass were high throughout the experiment, their color were not very green. The growth vigor of Indian couchgrass and Bahiagrass were strong during the last period of time. Among the temperate grasses , Tall fescue had a good tolerance to hot weather .Colonial bentgrass and Cocks foot can not tolerate drought, hot and barren soil, and declined quickly next year. Perennial ryegrass grew well in the first year. The leguminous forage grew strong especially during the dry winter and spring seasons. Alfafa had strong tolerance to drought and barren soil and cover well. The adaptability of red clover was also good. Kentucky bluegrass and zoysia grass grew slowly during their seedling time, and Weeping alkaligrass was not suitable to purple soil, and Carpet grass was not suitable to drought in high and dry area, they all cover slowly during the first period of time, and their coverage were low throughout the experiment. Bahiagrass and Birdsfoot trefoil could be utilized selectively .更多还原