毛竹-多花黄精复合经营模式对土壤理化特性的影响

为了探讨毛竹–多花黄精不同复合模式对土壤理化特性的影响，在安徽金寨县建立了不同立竹密度的毛竹-多花黄精复合模式试验林，进行比较分析。研究结果表明，复合模式的土壤容重显著降低，非毛管孔隙度、初渗速率和稳渗速率均显著提高。复合模式土壤 0-30 cm 土层有机碳、有效氮、有效磷、交换性镁含量显著高于对照，有利于土壤肥力的改善。

To investigate the effects of different Phyllostachys edulis–Polygonatum cyrtonema compound cultivation patterns on soil physical and chemical properties, experimental forests of Phyllostachys edulis–Polygonatum cyrtonema compound patterns with varying bamboo stand densities were established in Jinzhai County, Anhui Province, and a comparative analysis was conducted. The research findings indicate that the soil bulk density of the compound patterns is significantly reduced, while non-capillary porosity, initial infiltration rate and steady infiltration rate are all significantly elevated. The contents of soil organic carbon, available nitrogen, available phosphorus and exchangeable magnesium in the 0–30 cm soil layer of the compound patterns are significantly higher than those of the control group, which contributes to the improvement of soil fertility.