为了了解林下种植黄精、何首乌及天门冬对林地土壤养分的影响，为以后大规模发展林下中药材种植提供一定的理论指导，研究黄精等3种中药材根际土壤的养分变化。结果表明，黄精能够使根际土壤酸化，对照土壤中有机质含量较低，仅为34.0 g/kg，无法满足植物的生长需求。由于受有机质含量的影响，水解性氮总体上也偏低，有效磷和速效钾基本上能够满足这3种药材的生长。由于针叶难以腐化成有机质，今后应该选择阔叶林地或混交林地作为种植地，也可以通过人工增加土壤有机质含量来改良土壤性质。%Effects on soil nutrients of planting Polygonatum sibiricum Red., Fallopia multiflora (Thunb.) and Asparagus cochinchinensis (Lour.) Merr. under forest was studied. The aim of this study was to provide some theoretical guidance for after large-scale planting of Chinese herbal medicine under forest. Polygonatum sibiricum Red. can make the rhizosphere soil acidification. The low organic matter content in control soil of only 34.0g/kg is unable to meet the plant growth demand. Because of the influence of organic matter content, hydrolyzable nitrogen is generally low too, and available phosphorus and available potassium basically can satisfy the growth of these 3 kinds of herbs. Because the needles were difficult to decay into organic matter, so we should choose broad-leaved forest or mixed forest as planting fields. Also we can increase the content of soil organic matter artificially to improve the soil properties.
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