Effects of nutrient addition on leaf chemistry, morphology, and photosynthetic capacity of three bog shrubs
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Oecologia. 167: 355-368.
Plants in nutrient-poor environments typically have low foliar nitrogen (N) concentrations, long-lived tissues with leaf traits designed to use nutrients efficiently, and low rates of photosynthesis. We postulated that increasing N availability due to atmospheric deposition would increase photosynthetic capacity, foliar N, and specific leaf area (SLA) of bog shrubs. We measured photosynthesis, foliar chemistry and leaf morphology in three ericaceous shrubs (Vaccinium myrtilloides, Ledum groenlandicum and Chamaedaphne calyculata) in a long-term fertilization experiment at Mer Bleue bog, Ontario, Canada, with a background deposition of 0.8 g N m-2 a-1.
KeywordsN deposition; Nutrient use efficiency; Amino acids; Ammonium toxicity; Peatland; Polyamines
Bubier, Jill L.; Smith, Rose; Juutinen, Sari; Moore, Tim R.; Minocha, Rakesh; Long, Stephanie; Minocha, Subash. 2011. Effects of nutrient addition on leaf chemistry, morphology, and photosynthetic capacity of three bog shrubs. Oecologia. 167: 355-368. https://doi.org/10.1007/s00442-011-1998-9.