scholarly journals Retracted: Variations in Stable Carbon Isotope Composition and Leaf Traits ofPicea schrenkianavar.tianschanicaalong an Altitude Gradient in Tianshan Mountains, Northwest China

2015 ◽  
Vol 2015 ◽  
pp. 1-1
Keyword(s):  
Carbon Isotope ◽  
Isotope Composition ◽  
Stable Carbon Isotope ◽  
Leaf Traits ◽  
Northwest China ◽  
Carbon Isotope Composition ◽  
Tianshan Mountains ◽  
Stable Carbon ◽  
Altitude Gradient ◽  
Stable Carbon Isotope Composition

scholarly journals Variations in Stable Carbon Isotope Composition and Leaf Traits ofPicea schrenkianavar.tianschanicaalong an Altitude Gradient in Tianshan Mountains, Northwest China

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Huiwen Zhang ◽  
Jianying Ma ◽  
Wei Sun ◽  
Fahu Chen
Keyword(s):  
Photosynthetic Capacity ◽  
Isotope Composition ◽  
Stable Carbon Isotope ◽  
Leaf Traits ◽  
Northwest China ◽  
Tianshan Mountains ◽  
Stable Carbon ◽  
Altitude Gradient ◽  
Altitudinal Gradients ◽  
One Year

To understand the morphological and physiological responses of leaves to changes in altitudinal gradients, we examined ten morphological and physiological characteristics in one-year-old needles ofPicea schrenkianavar.tianschanicaat ten points along an altitudinal gradient from 1420 to 2300 m a.s.l. on the northern slopes of the Tianshan Mountains in northwest China. Our results indicated that LA, SD, LPC, and LKC increased linearly with increasing elevation, whereas leafδ13C, LNC, Chla + b, LDMC, LMA, and Nareavaried nonlinearly with changes in altitude. With elevation below 2100 m, LNC, Narea, and Chla + b increased, while LDMC and LMA decreased with increasing altitude. When altitude was above 2100 m, these properties showed the opposite patterns. Leafδ13C was positively correlated with Nareaand LNC and negatively correlated with SD and LA, suggesting that leafδ13C was indirectly controlled by physiological and morphological adjustments along altitudinal gradients. Based on the observed maximum values in LNC, Narea, Chla + b, and LA and the minimum values in LMA and LDMC at the elevation of 2100 m, suggesting higher photosynthetic capacity and greater potential for fast growth under superior optimum zone, we concluded that the best growing elevation forP. schrenkianavar.tianschanicain the Tianshan Mountains was approximately 2100 m.

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