不同林分下多花黄精的生长指标与土壤容重的相关性分析

    Correlation Analysis Between the Growth Indexes of Polygonatum Cyrtonema and Soil Bulk Density Under Different Stands

    • 摘要: 多花黄精人工栽培过程中普遍存在对林分和土壤选择不规范等问题,针对这些问题对不同林分套种多花黄精的生长特性及与土壤容重的相关性进行分析。结果表明:不同林分套种对多花黄精生长及土壤容重都有较大的影响,土壤容重与多花黄精地上部和地下部各生长指标均呈负相关,林缘种植的多花黄精产量最高,为253.77 g·株-1,木通林下地块土壤容重最大,为1.76 g·cm-3,且套种多花黄精产量最低,仅58.37 g·株-1。林缘为种植多花黄精优选的地块,多花黄精套种应加强土壤有机质和林分郁闭度的调控。

       

      Abstract: During the process of artificial cultivation of Polygonatum cyrtonema, there were widespread problems such as non-standard selection of stand and soil. In view of these problems, the growth characteristics of Polygonatum cyrtonema interplanted in different stands and its correlation with soil bulk density were analyzed. The results showed that: Interplanting in different stands had great influence on the growth of Polygonatum cyrtonema and the soil bulk density. The soil bulk density was negatively correlated with the growth indexes of the aboveground and underground parts of Polygonatum cyrtonema. The yield of Polygonatum cyrtonema planted at the edge of the forest was the highest (253.77 g·zhu-1), and the soil bulk density was the highest (1.76 g·cm-3) in the understory plot of akebia stem, while the yield of Polygonatum cyrtonema interplanted was the lowest (58.37 g·zhu-1). The edge of the forest was the optimal plot for planting Polygonatum cyrtonema. And the interplanting of Polygonatum cyrtonema should strengthen the regulation of soil organic matter and stand canopy density.

       

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