The effects of ecological factors and artificial tending on the growth and yield of wild forsythia | 生态因子及抚育对野生连翘生长和产量的影响

Chinese. 以山西省固县林场野生连翘为研究对象,调查了其生长环境各生态因子，并选取样地进行人工抚育处理，分析了不同生态因子及人工抚育对野生连翘生长和产量的影响。调查分析结果表明，阴坡土壤厚度、含水率、全盐量、有效磷、有效钾和有机质含量均高于阳坡，其中阴坡土壤含水率显著高于阳坡，阴坡土壤pH值、有效氮和全氮含量低于阳坡。阴坡野生连翘的株高、冠幅、地径、分枝数、开花数量均显著高于阳坡，结实量与阴坡差异不显著。人工抚育对阴阳坡野生连翘的物侯期没有影响。人工抚育下，阴坡和阳坡野生连翘株高、分枝数均低于未抚育连翘，连翘冠幅、结实量显著大于未抚育连翘，且阴坡经人工抚育后连翘结实量显著高于阳坡。

English. As the research material, the ecological factors of growth environment of wild forsythia were investigated in Gu County, Shanxi Province. By treating the samples with artificial tending, the impact of ecological factors and artificial tending to the growth and production of wild forsythia were analyzed. It was concluded that the soil thickness, water content, total salt content, the content of available phosphorus, available potassium and organic matter in shady slope were higher than those in sunny slope. The soil water content in shady slope is significantly higher than that in sunny slope, and the soil pH, the content of the available nitrogen and total nitrogen content in shady slope were lower than those in the sunny slope. The plant height, crown width, diameter, number of branches, the number of flowering in shady slope were significantly higher than those in the sunny slope. The difference of fruit quantity between the shady slope and in sunny slope was not obvious. The results demonstrated that artificial tending had no effects on the phenophase of wild forsythia. The plant height and the number of branches in both slopes applied with artificial tending were lower than those without it. The forsythia crown width, fruit quantity of artificial tending forsythia were significantly higher than those without artificial tending in both shady slope and sunny slope, and the fruit quantity of artificial tending forsythia in the shady slope were significantly higher than that in sunny slope.