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Fig. 3 | Forest Ecosystems

Fig. 3

From: Responses of water use in Moso bamboo (Phyllostachys heterocycla) culms of different developmental stages to manipulative drought

Fig. 3

Linear regression (a, c, d) of average vapor pressure deficit (VPD, kPa) and sap flow density (Js, g∙m− 2∙s− 1) in the daytime, and linear regression (b, d, f) of residuals plotted against soil water content (SWC, %) in old (a, b), mature (c, d), young (e, f) in ambient (A) and throughfall reduction treatment (TRT). The significance level (p < 0.001) is marked by Asterisks (*) for these significant fitting model. Different letters behind r-square value denote the significant difference in the slopes of the regression lines between ambient and drought (ANCOVA, (a) F (1, 22) = 58.096, p < 0.001; (c) F (1, 22) = 5.677, p = 0.018; (e) F (1, 34) = 65.727, p < 0.001). Data only in sunny days during growing seasons in 2017 and 2018 were included (n = 211)

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