Nitrogen–phosphorous interactions in young northern hardwoods indicate P limitation: foliar concentrations and resorption in a factorial N by P addition experiment

TitleNitrogen–phosphorous interactions in young northern hardwoods indicate P limitation: foliar concentrations and resorption in a factorial N by P addition experiment
Publication TypeJournal Article
Year of Publication2019
AuthorsGonzales, K, Yanai, RD
JournalOecologia
Date Published2019/02/15/
ISBN Number1432-1939
KeywordsFertilization, Foliar nutrients, northern hardwoods, nutrient limitation, Resorption efficiency, Resorption proficiency
Abstract

Resorption, the process of withdrawing foliar nutrients prior to leaf abscission, is one of the most important nutrient conservation mechanisms in trees. Along with foliar nutrient concentrations, foliar resorption can be used to infer nutrient limitation. We collected green and senesced leaves of five species in early successional stands in the White Mountains of New Hampshire. In unmanipulated controls, foliar N:P ratios ranged from 20 to 31 and litter N:P ratios ranged from 19 to 36. These values suggest P limitation, although this forest type has been assumed to be N-limited. Additionally, N:P resorption ratios in control plots were

URLhttps://doi.org/10.1007/s00442-019-04350-y
DOI10.1007/s00442-019-04350-y
Short TitleOecologia