[Retracted] Variations in Stable Carbon Isotope Composition and Leaf Traits of Picea schrenkiana var. tianschanica along an Altitude Gradient in Tianshan Mountains, Northwest China

Figure 1

Variation in (a) leaf stable carbon isotope composition (δ ¹³C), (b) leaf projected area per 100 needles (LA), (c) stomatal density (SD), (d) leaf nitrogen concentration per unit mass (LNC), (e) leaf phosphorus concentration per unit mass (LPC), (f) leaf potassium concentration per unit mass (LKC), (g) pigment contents (Chla + b), (h) leaf dry matter content (LDMC), (i) leaf mass per unit area (LMA), and (j) leaf nitrogen concentration per unit area (N_area) in P. schrenkiana var. tianschanica along the altitudinal gradients.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)