Global resorption efficiencies and concentrations of carbon and nutrients in leaves of terrestrial plants

Leonardus Vergutz, Stefano Manzoni, Amilcare Michele M. Porporato, Roberto Ferreira Novais, Robert B. Jackson

Research output: Contribution to journalArticle

288 Scopus citations

Abstract

Nutrient resorption in plants influences nutrient availability and cycling and is a key process in biogeochemical models. Improved estimates of resorption parameters are needed for predicting long-term primary productivity and for improving such models. Currently, most models assume a value of 50% resorption for nitrogen (N) and phosphorus (P) and lack resorption data for other nutrients and for specific vegetation types. We provide global estimates of resorption efficiencies and nutrient concentrations for carbon (C), N, and P and the first global-scale estimates for essential nutrients such as potassium (K), calcium (Ca), and magnesium (Mg). We also examine leaf mass loss during senescence (LML) globally and for different plant types, thus defining a mass loss correction factor (MLCF) needed to quantify unbiased resorption values. We used a global meta-analysis of 86 studies and ̃1000 data points across climates for green and senesced leaves in six plant types: ferns, forbs, graminoids, conifers, and evergreen and deciduous woody angiosperms. In general, N and P resorption differed significantly from the commonly used global value of 50% (62.1%, 64.9%, respectively; P < 0.05). Ca, C, and Mg showed lower average resorptions of 10.9%, 23.2%, and 28.6%, respectively, while K had the highest resorption, at 70.1%. We also found that resorption of all nutrients except Ca depended on leaf nutrient-status; globally, C, N, P, K, and Mg showed a decrease in resorption with increased nutrient status. On average, global leaf mass loss was 24.2%. Overall, our resorption data differ substantially from commonly assumed values and should help improve ecological theory and biogeochemical and landsurface models.

Original languageEnglish (US)
Pages (from-to)205-220
Number of pages16
JournalEcological Monographs
Volume82
Issue number2
DOIs
StatePublished - May 2012

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics

Keywords

  • Biogeochemical and land-surface models
  • Calcium
  • Carbon
  • Leaf mass loss
  • Magnesium
  • Nitrogen
  • Nutrient resorption efficiency
  • Phosphorus
  • Potassium

Fingerprint Dive into the research topics of 'Global resorption efficiencies and concentrations of carbon and nutrients in leaves of terrestrial plants'. Together they form a unique fingerprint.

  • Cite this