植物-土壤反馈时空变异研究进展

陈炫铮, 朱耀军, 高居娟, 刘一凡, 王荣, 方涛, 罗芳丽, 薛伟, 于飞海

Research progress on spatial-temporal variation of plant-soil feedback

CHEN Xuan-Zheng, ZHU Yao-Jun, GAO Ju-Juan, LIU Yi-Fan, WANG Rong, FANG Tao, LUO Fang-Li, XUE Wei, YU Fei-Hai

图1 植物-土壤反馈的时空格局(A)及调控机制(B)。A中绿色和棕色箭头代表原物种继续生长, 黑色箭头代表新物种在原物种驯化后的土壤中生长; 不同颜色深浅的斑块代表物种对土壤的影响程度; 在时间尺度上, 植物生长时间越长, 微生物对土壤影响越大; 在空间尺度上, 随着空间向外扩展, 微生物对土壤的影响逐渐减弱。时间尺度(如驯化与反馈时间的长短等)对土壤中养分与微生物组成产生影响, 空间尺度(如纬度、海拔差异等)对土壤属性产生影响, 二者共同调控植物生长。所涉及的参考文献详见附录。

Fig. 1 Spatial-temporal pattern (A) and regulatory mechanism (B) of plant-soil feedback. In A, green and brown arrows indicate continued growth of the original species, and black arrows indicate growth of new species in the domesticated soil of original species. Patches with different shades of color represent the degree of soil influenced by new species. At the temporal scale, the longer time the plant grow, the greater the effect of microorganisms on soil. At the spatial scale, with the outward expansion of root space, the influence of microorganisms on soil gradually weakens. The time scale (e.g., domestication and feedback time) affects soil nutrient and microbial composition, and the spatial scale (e.g., latitude and altitude differences) affects soil properties, both of which jointly regulate plant growth. References to trend charts are listed in Supplement.