金城山淫羊藿生长适宜环境因子

Study on the Suitable Environmental Factors for the Growth of Epimedium brevicornum Maxim. in Jincheng Mountain

[目的]为淫羊藿资源的合理开发利用和人工栽培提供理论依据。[方法]采用Shannon-Wiener指数生态位宽度计算公式，对嘉陵江流域金城山森林公园淫羊藿在不同环境因子范围上的生态位宽度进行测定，探讨自然植被群落中金城山淫羊藿生长的适宜环境因子。[结果]从生态位的角度来看，金城山淫羊藿的适宜海拔为574～623m，适宜土壤含水量为14％，适宜土壤pH值为5、73～5．83，适宜土壤有机质含量为2.28～2．48g/kg，适宜土壤深度为16．0～19.7，适宜光照强度为796．6～1015．0lx。[结论]该研究对开发淫羊藿中药资源和加强淫羊藿野生资源保护有一定的指导意义。

[ Objective] The research aimed to provide the theoretical basis for reasonable development and utilization of Epimedium brevicomum Maxim. resources and its artificial cultivation, [ Method] Using the calculation formula of Shannon-Wiener exponent niche breadth, the niche breadth of E. brevicornum in Jinchengshan forest park of Jialingjiang River basin under different environmental factor range were determined, And the suitable environmental factors for the growth of Jingchengshan E, brevicornum in natural vegetation community were discussed, [Result] From the aspect of niche, the suitable elevation of Jingchengshan E, brevicornum was 574 N 623 m, the suitable water content in the soil was 14%, the suitable pH value of the soil was 5.73 5.83, the suitable content of organic matter in the soil was 2.28 -2.48 g/kg, the suitable soil depth was 16.0- 19.7 and the suitable light intensity was 796.6 - 1 015.0 lx. [Conclusion] This research had certain guiding significance for developing Chinese resource E. brevicornum and strengthening the protection of E. brevicornum wild resources,