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Ecological Processes
Fig. 1 | Ecological Processes

Fig. 1

From: Effects of nitrogen addition and drought on the relationship between nitrogen- and water-use efficiency in a temperate grassland

Fig. 1

Responses of averaged WUEINST (a), NUEINST (b), WUELT (c) and NUELT (d) to different treatments (C: control, N: N addition, D: drought, ND: combined drought and N addition). Data are shown as mean ± SE. Different lowercase letters above any two bars indicate significant differences among the treatments at p < 0.05

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