麻黄(Ephedra sinica Stapf)植物闻名世界,为我国道地特产,也是我国北方干旱和半干旱地区草场上重要的药用、饲用(骆驼和羊)植物资源之一,近年来麻黄碱外贸市场的不断扩大,生产厂家不断增加,新设备、新工艺的应用使生产能力迅速提高,因而对麻黄的需求量急剧上升,加之不合理的滥采、滥割造成麻黄资源的严重破坏,野生资源日渐减少,制约着麻黄草原料的稳定供应。1991年我们承担了国家“八五”科技攻关课题“麻黄 Ephedra sinica Stapf plant is famous in the world and is a native product of our country. It is also one of the important medicinal and feed (camel and sheep) plant resources in pasture in arid and semi-arid areas in northern China. In recent years, Ephedra sinica Stapf The demand for ephedra sharply increased, combined with unreasonable overuse and over-exploitation caused the serious destruction of ephedra resources and the decrease of wild resources , Restricting the steady supply of ephedra raw materials. In 1991, we assumed the national “Eighth Five-Year” scientific and technological project "Ephedra