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Fig. 5 | BMC Plant Biology

Fig. 5

From: Effects of N and P enrichment on plant photosynthetic traits in alpine steppe of the Qinghai-Tibetan Plateau

Fig. 5

Correlation of community weighed mean (CWM) values among all plant eco-physiological traits and soil nutrients. A: net photosynthetic rate, Gs: stomatal conductance, Ci: intercellular CO2 concentration, Tr: transpiration rate, WUE: water use efficiency.CK: control, N: N fertilization, P: P fertilization, NP: N plus P fertilization.* indicates significant difference at the level of p < 0.05,** indicates significant difference at the level of p < 0.01, ***indicates significant difference at the level of p < 0.001.Soil AP: Soil available phosphorus, Soil AK: Soil available potassium, Soil NH4+-N: Soil ammonium nitrogen, Soil NO3−-N: Soil nitrate nitrogen

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BMC Plant Biology

ISSN: 1471-2229

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