异速滴定
个体发育
缩放比例
竹子
增长率
生态化学计量学
生物
化学计量学
少年
相对增长率
糖
营养物
植物
生态学
化学
数学
生物化学
遗传学
几何学
有机化学
作者
Ming Ouyang,Di Tian,Karl J. Niklas,Zhengbing Yan,Wenxuan Han,Qingshui Yu,Guoping Chen,Chengjun Ji,Zhiyao Tang,Jing-Yun Fang
摘要
Summary Stoichiometric rules may explain the allometric scaling among biological traits and body size, a fundamental law of nature. However, testing the scaling of elemental stoichiometry and growth to size over the course of plant ontogeny is challenging. Here, we used a fast‐growing bamboo species to examine how the concentrations and contents of carbon (C), nitrogen (N) and phosphorus (P), relative growth rate ( G ), and nutrient productivity scale with whole‐plant mass ( M ) at the culm elongation and maturation stages. The whole‐plant C content vs M and N content vs P content scaled isometrically, and the N or P content vs M scaled as a general 3/4 power function across both growth stages. The scaling exponents of G vs M and N (and P) productivity in newly grown mass vs M relationships across the whole growth stages decreased as a −1 power function. These findings reveal the previously undocumented generality of stoichiometric allometries over the course of plant ontogeny and provide new insights for understanding the origin of ubiquitous quarter‐power scaling laws in the biosphere.
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