匍匐茎草本蛇莓克隆构型对土壤养分的可塑性反应

克隆植物构型的可塑性可使它在养分斑块性分布的环境中，相应地调整对土壤养分的获取对策，因而可能具有重要的生态学意义。在一项田间实验中，匍匐茎草本蛇莓(Duchesnea indica Focke）经历了不同土壤养分水平（高、中、低和对照）处理，以研究土壤养分对蛇莓克隆构型的影响。结果表明：随着土壤养分水平的增加，间隔子的长度和分枝角度均逐渐降低，而分枝强度和分株密度增加。在不同养分水平生镜中，蛇莓克隆构型相关特征的可塑性变化可用动态Logistic模型进行模拟和预测，拟合效果较好。结合植物对环境异质性的利用对策，对所揭示的蛇莓克隆构型可塑性进行了讨论。

Plasticity of clonal architecture in response to soil nutrients in the stoloniferous herb Duchesnea indica Focke

Architectural plasticity of clonal plants may modify their ways of utilization of soil nutrients in their habitats of resource heterogeneity, and therefore be ecologically important. The plasticity of clonal architecture, in terms of space length, branch intensity and branch angle, in response to soil nutrients in the stoloniferous herb, Mock-strawberry (Duchesnea indica Focke), was investigated using the method of experimental ecology. The experimental plant materials were collected from Chinese subtropic...