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1980年到1981年间,我们在有一定坡度的、再次采掘的开挖槽煤矿弃土(Lenzburg砾质粉砂粘壤土)上进行了禾草和豆科牧草的种植,目的是检验它们在弃土上建立和保持植物地被的能力,并选出与间作实生树苗无过分竞争的草种.6年后,苇状羊茅、加拿大莓系、无芒雀麦、大须芒草、苜蓿和小冠花生长非常旺盛.5种冷季禾草中,紫羊茅第2年的覆盖最多,第6年的覆盖最少.建议将紫羊茅用于实生树苗的试验性间作.
Between 1980 and 1981 we planted grasses and leguminous pastures on slopes and re-excavated excavated trench coal (Lenzburg gravel silty clay loamy soil) in order to test their effect on spoil On the ability to establish and maintain plant cover, and to select grass species that are not overly-competing with the intercropping tree seedlings. Six years later, tall fescue, Canadian raspberry, Bromus inermis, Flower growth is very strong.Five kinds of cold-season grasses, the second year of purple fescue cover the most, the smallest coverage of the sixth year.It is recommended that purple fescue for the experimental saplings intercropping.