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    How closely does stem growth of adult beech (Fagus sylvatica) relate to net carbon gain under experimentally enhanced ozone stress?
        
        Environ. Pollut. 166, 108-115 (2012)
    
    
    
	    The hypothesis was tested that O-3-induced changes in leaf-level photosynthetic parameters have the capacity of limiting the seasonal photosynthetic carbon gain of adult beech trees. To this end, canopy-level photosynthetic carbon gain and respiratory carbon loss were assessed in European beech (Fagus sylvatica) by using a physiologically based model, integrating environmental and photosynthetic parameters. The latter were derived from leaves at various canopy positions under the ambient O-3 regime, as prevailing at the forest site (control), or under an experimental twice-ambient O-3 regime (elevated O-3), as released through a free-air canopy O-3 fumigation system. Gross carbon gain at the canopy-level declined by 1.7%, while respiratory carbon loss increased by 4.6% under elevated O-3. As this outcome only partly accounts for the decline in stem growth, O-3-induced changes in allocation are referred to and discussed as crucial in quantitatively linking carbon gain with stem growth.
	
	
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        Publication type
        Article: Journal article
    
 
    
        Document type
        Scientific Article
    
 
     
    
    
        Keywords
        Free-air Fumigation; Forest Trees; Photosynthetic Capacity; Mature Trees; O-3 Exposure; Picea-abies; Young Beech; Long-term; Spruce; Light; Adult Forest Trees; Long-term Free-air O-3 Fumigation; Fagus Sylvatica; Light Gradient; Seasonal Carbon Balance; FREE-AIR FUMIGATION; FOREST TREES; PHOTOSYNTHETIC CAPACITY; MATURE TREES; O-3 EXPOSURE; PICEA-ABIES; YOUNG BEECH; LONG-TERM; SPRUCE; LIGHT
    
 
     
    
    
        Language
        
    
 
    
        Publication Year
        2012
    
 
     
    
        HGF-reported in Year
        2012
    
 
    
    
        ISSN (print) / ISBN
        0269-7491
    
 
    
        e-ISSN
        1873-6424
    
 
    
     
     
	     
	 
	 
    
        Journal
        Environmental Pollution
    
 
	
    
        Quellenangaben
        
	    Volume: 166,  
	    
	    Pages: 108-115 
	    
	    
	
    
 
    
         
        
            Publisher
            Elsevier
        
 
         
	
         
         
         
         
         
	
         
         
         
    
         
         
         
         
         
         
         
    
        Reviewing status
        Peer reviewed
    
 
    
        Institute(s)
        Research Unit Environmental Simulation (EUS)
    
 
    
        POF-Topic(s)
        30202 - Environmental Health
    
 
    
        Research field(s)
        Environmental Sciences
    
 
    
        PSP Element(s)
        G-504991-001
    
 
     
     	
    
        PubMed ID
        22487316
    
    
    
        WOS ID
        WOS:000304512600014
    
    
        Scopus ID
        84860487742
    
    
        Erfassungsdatum
        2012-06-21