RT info:eu-repo/semantics/article
T1 Comparing the use of leaf and soil analysis as N and P availability indices in a wildfire chronosequence
A1 Durán, Jorge
A1 Rodríguez, Alexandra
A1 Covelo, Felisa
A1 Fernández-Palacios, José María
A1 Gallardo, Antonio
K1 Pine
K1 Nutrient status
K1 Nutriente
K1 Nitrógeno
K1 Fósforo
K1 Phosphorus
K1 Nitrogen
AB Two types of measures have traditionally beenused to monitor changes after disturbances in the nutrientavailability of forest ecosystems: (1) soil nutrient pools andtransformation rates and (2) foliar nutrient content. Weused a wildfire chronosequence in natural and unmanagedPinus canariensis forests to determine which kind ofmeasure is more effective in discriminating between disturbedand undisturbed plots and to determine whether thedifferent availability indices provide comparable and consistentresults within the chronosequence and betweendifferent sampling dates. The results showed that (1) foliarN and P concentrations were the variables that best discriminatedbetween the plots of the chronosequence, (2) thevarious soil N availability indices neither showed steadyrelationships nor predicted the plant nutrient availability,and (3) P availability indices showed steady relationshipsand predicted plant nutrient availability. Due to thechanging nature of the soil N pools, repeated sampling overa long period of time could yield results different fromthose presented here. However, the large sampling effortrequired would favor the use of foliar nutrientconcentrations as the most desirable first approach to thecommunity’s nutritional status, especially when time orbudget constraints are relevant.
PB Springer
SN 1612-4669
YR 2012
FD 2012
LK http://riull.ull.es/xmlui/handle/915/16489
UL http://riull.ull.es/xmlui/handle/915/16489
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 12-nov-2024