Declining foliar and litter δ 15 N diverge from soil, epiphyte and input δ 15 N along a 120 000 yr temperate rainforest chronosequence
نویسندگان
چکیده
منابع مشابه
Declining foliar and litter δ¹⁵N diverge from soil, epiphyte and input δ¹⁵N along a 120,000 yr temperate rainforest chronosequence.
Patterns in the natural abundance of nitrogen (N) isotopes (¹⁵N and ¹⁴N) can help in the understanding of ecosystem processes along environmental gradients, because some processes fractionate against the heavier isotope. We measured δ¹⁵N in many components of the Franz Josef soil chronosequence in New Zealand to see how each component varied along the sequence and within sites, and to see what ...
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Biological nitrogen fixation (BNF) in woody plants is often investigated using foliar measurements of δ(15) N and is of particular interest in ecosystems experiencing increases in BNF due to woody plant encroachment. We sampled δ(15) N along the entire N uptake pathway including soil solution, xylem sap and foliage to (1) test assumptions inherent to the use of foliar δ(15) N as a proxy for BNF...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 2011
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.2010.03640.x