高寒草甸植物化学计量比对磷添加的分层响应
孙小妹1,陈菁菁2,李金霞1,李良1,韩国君1,陈年来1,*(
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Hierarchical responses of plant stoichiometry to phosphorus addition in an alpine meadow community
SUN Xiao-Mei1,CHEN Jing-Jing2,LI Jin-Xia1,LI Liang1,HAN Guo-Jun1,CHEN Nian-Lai1,*()
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图1. P添加对典型种物种优势度和各功能群生物量(平均值±标准误差, n = 3)的影响。C、P5、P10、P15分别指P添加量为0、5、10、15 g·m-2·a-1。GR, 禾本科; SE, 莎草科; LE, 豆科; FO, 杂类草; E.n, 垂穗披碱草; K.h, 矮嵩草; O.o, 黄花棘豆; T.l, 川甘蒲公英; G.p, 甘青老鹳草。不同小写字母表示处理间差异显著(p < 0.05)。
Fig. 1. Effects of P addition on species dominance of exemplary species and biomass of each functional group (mean ± SE, n = 3). C, P5, P10, P15, nutrient addition 0, 5, 10, 15 g·m-2·a-1. GR, grasses; SE, sedges; LE, legumes; FO, forbs; E.n, Elymus nutans; K.h, Kobresia humili; O.o, Oxytropis ochoocephala; T.l, Taraxacum lugubre; G.p, Geranium pylzowianum. Different lowercase letters indicate significant differences between treatments (p < 0.05).
