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为了选择黄土高原林下适宜种植的药材植物,采集当地3种针叶林腐殖质层土壤作为培养基质对11种药材植物进行盆栽试验,研究林地土壤对药材植物生长及生理的化感作用,结果表明:白芷(Angelica dahurica)、远志(Polygala tenuifolia)、南星(Arisaema heterophyllum)、柴胡(Bupleurum chinense)、板蓝根(Isatis tinctoria)和射干(Belamcanda chinensis)在油松(Pinus tabulaeformis)林地腐殖质土壤中受到显著化感抑制,应避免种植于油松林下;射干、南星、桔梗(Platycodon grandiflorus)、板蓝根、甘草(Glycyrrhiza uralensis)和柴胡在侧柏(Platycladus orientalis)林土壤中受到显著抑制,应避免种植于侧柏林下;南星、射干、板蓝根和远志在落叶松(Larix principis-rupprechtii)林土壤中受到显著抑制,应避免种植于落叶松林下。
In order to select suitable plant species for understory cultivation in the Loess Plateau, three humus-bearing soil layers of coniferous forests in the local area were collected as potting media for pot experiments on 11 medicinal plants to study the allelopathic effects of forest soil on plant growth and physiology. : Angelica dahurica, Polygala tenuifolia, Arisaema heterophyllum, Bupleurum chinense, Isatis tinctoria and Belamcanda chinensis were significantly affected in humus soil of Pinus tabulaeformis forest Allelopathic inhibition should be avoided in Pinus tabulaeformis forest. The effects of Shegan, Nanxing, Platycodon grandiflorus, Radix Isatidis, Glycyrrhiza uralensis and Bupleurum are significantly inhibited in the soil of Platycladus orientalis. Platycladus orientalis; South star, Shegan, Banlangen and Polygalaceae in the Larix principis-rupprechtii forest soil was significantly inhibited, should avoid planting in the larch forest.