植物生态化学计量特征及其主要假说

田地, 严正兵, 方精云

Review on characteristics and main hypotheses of plant ecological stoichiometry

TIAN Di, YAN Zheng-Bing, FANG Jing-Yun

表1 全球陆生植物叶片氮(N)和磷(P)含量和N:P在不同生活型间的差异

Table 1 Leaf nitrogen (N), phosphorus (P) content and N:P mass ratio across different lifeforms of global terrestrial plants

功能群 Functional group N (mg∙g-1) P (mg∙g-1) N:P (g∙g-1) n 所有生活型 All functional groups 18.74 (±8.33) 1.21 (±0.94) 15.55 (±9.95) 12 721 所有木本 All woody species 18.22 (±7.77) 1.10 (±0.81) 16.53 (±9.30) 9 098 常绿针叶 Evergreen conifers 12.79 (±4.25) 1.06 (±0.81) 12.07 (±8.39) 480 常绿阔叶 Evegreen broadleaved 15.29 (±6.66) 0.79 (±0.56) 19.29 (±10.60) 3 476 落叶阔叶 Deciduous broadleaved 21.29 (±7.53) 1.40 (±0.86) 15.24 (±7.66) 4 981 其他木本 Other woody species 18.63 (±8.32) 1.23 (±0.64) 16.58 (±8.77) 101 草本 Herbaceous species 20.56 (±9.33) 1.56 (±1.12) 13.17 (±11.03) 3 489 蕨 Ferns 11.46 (±4.75) 0.65 (±0.62) 17.75 (±13.06) 134