Fig. 4From: Increased soil moisture aggravated the competitive effects of the invasive tree Rhus typhina on the native tree Cotinus coggygriaChlorophyll parameters and photosynthesis parameters of Rhus typhina and Cotinus coggygria under three water and two cultivation regimes. The chlorophyll parameters include chlorophyll concentration (chl; A, B) and chlorophyll a to chlorophyll b ratio (chla/chlb; C, D). The photosynthesis parameters include net photosynthesis rate (A; E, F), stomatal conductance (Gs; G, H) and water use efficiency (WUE; I, J). Data in the figure are mean ± SE (n = 3). Different letters denote significant differences (p ≤ 0.05) with Duncan’s methodBack to article page