Abstract：
In a mixed forest, certain plants can release allelochemicals that exert allelopathic effects on neighboring plants, thereby facilitating interspecific coexistence of two species. Previous studies have demonstrated that allelochemicals released from Ficus carica Linn. roots in mixed forest of F. carica and Taxus cuspidata Sieb. et Zucc. has phase characteristics over time, which can improve the soil physicochemical properties, enzyme activity and microbial diversity, thus promoting the growth of T. cuspidata. Based on the irrigation of exogenous allelochemicals, changes in soil fertility (soil physical and chemical properties, soil enzyme activity and soil microelement content) were observed in response to variations in allelochemicals during five phases of irrigation: initial disturbance phase (0-2 d), physiological compensation phase (2-8 d), screening phase (8-16 d), restore phase (16-32 d) and maturity phase (32-64 d), which was consistent with the response of soil microorganisms. The allelopathic response of growth physiological indexes of T. cuspidata, however, exhibited a slight lag behind the soil fertility, with distinct phase characteristics becoming evident on the 4th day following irrigation of allelochemicals. The findings demonstrated that the allelochemicals released by the root of F. carica induced a synergistic effect on soil fertility and microorganisms, thereby facilitating the growth of T. cuspidata. This study provides a comprehensive elucidation of the phased dynamic response-based allelopathic mechanism employed by F. carica to enhance the growth of T. cuspidata, thus establishing a theoretical basis for optimizing forest cultivation through allelopathic pathways.
摘要：
在混合森林里，某些植物可以释放对邻近植物产生化感作用的化感物质，从而促进两个物种的种间共存。先前的研究表明，无花果释放的化感物质。番荔枝和红豆杉混交林的根系。等Zucc。随着时间的推移具有相位特征，可以改善土壤理化性质，酶活性和微生物多样性，从而促进了T.cuspidata的增长。基于外源化感物质的灌溉，土壤肥力的变化(土壤理化性质，土壤酶活性和土壤微量元素含量）在灌溉的五个阶段中观察到对化感物质变化的响应：初始扰动阶段（0-2d），生理补偿阶段（2-8d），筛选阶段（8-16d），恢复阶段(16-32d)和成熟阶段(32-64d)，这与土壤微生物的反应是一致的。虎杖生长生理指标的化感反应，然而,表现出稍微落后于土壤肥力，在灌溉化感物质后的第4天，具有明显的相位特征。研究结果表明，卡洛卡根释放的化感物质对土壤肥力和微生物具有协同作用，从而促进T.cuspidata的生长。这项研究全面阐明了F.carica用于增强T.cusidata生长的分阶段基于动态响应的化感机制，从而为通过化感途径优化森林栽培奠定了理论基础。
