摘要
在海拔 32 0 0m的青海环湖地区 ,对多叶老芒麦Elymussibiricuscv duoye和短芒老芒麦E breviaristatum的生态适应性和生产性能进行了连续 4年的观测与分析。结果表明 :2种老芒麦在试验区无灌溉条件下 ,均表现出返青早、抗寒、耐旱、产草量高等优良特性。多叶老芒麦干草产量和种子产量分别达 11 75和 0 82t/hm2 ,可作为试验区建植多年生人工草地的当家草种。短芒老芒麦干草产量可达9 5 0t/hm2 。
From 1997 to 2000, the ecological adaptability and productivity of two species of Elymus were evaluated in the north of Qinghai Lake with altitude of 3 200m. The results showed that without irrigation condition, Elymus sibiricus cv. duoye adapted to the ecological condition of test area very well and had 11.75 t/hm^2 hay yield and 0.82 t/hm^2 seed yield. In addition, because of its good characteristics, such as earliness, cold and drought resistance, it can be used as dominant species in establishing perennial artificial grassland. As for Elymus breviaristatum, with 9.50 t/hm^2 hay yield, can also be used as valuable specie in establishing perennial artificial grassland in local area.
出处
《草业科学》
CAS
CSCD
2004年第9期39-42,共4页
Pratacultural Science
基金
国家"九五"攻关专题"青藏高原草地牦牛藏羊持续发展技术研究"( 96 0 16 0 2 )资助
关键词
多叶老芒麦
短芒老芒麦
生态适应性
生产性能
高寒地区
Elymus sibiricus cv. Duoye
Elymus breviaristatum
ecological adaptability
Productivity
alpine region
