Estimating nutrient uptake by mature tree roots under field conditions: Challenges and opportunities

Melissa S. Lucash, David M. Eissenstat, J. Devereux Joslin, Karis J. McFarlane, Ruth D. Yanai

Research output: Contribution to journalReview article

31 Citations (Scopus)

Abstract

Nutrient uptake by roots of mature trees is difficult to measure accurately under field conditions using existing methods. In this review, we discuss current techniques for measuring uptake at the root surface including excised roots, isotopic tracers, autoradiography, depletion, and lysimeters. Although these methods have provided many insights, each has drawbacks. Estimates of uptake are affected by the sampling scheme, experimental conditions, whether roots are excised or not, concentrations of ions, and the rate of efflux of ions. Microbes and mycorrhizas can also affect estimates of uptake. A greater focus on methods development is critical to advancing our understanding of nutrient uptake of mature trees under conditions representative of those in the field.

Original languageEnglish (US)
Pages (from-to)593-603
Number of pages11
JournalTrees - Structure and Function
Volume21
Issue number6
DOIs
StatePublished - Nov 1 2007

Fingerprint

nutrient uptake
uptake mechanisms
Ions
ions
Autoradiography
ion
autoradiography
lysimeters
lysimeter
methodology
mycorrhizae
tracer techniques
tracer
microorganisms
sampling
method

All Science Journal Classification (ASJC) codes

  • Forestry
  • Physiology
  • Ecology
  • Plant Science

Cite this

Lucash, Melissa S. ; Eissenstat, David M. ; Joslin, J. Devereux ; McFarlane, Karis J. ; Yanai, Ruth D. / Estimating nutrient uptake by mature tree roots under field conditions : Challenges and opportunities. In: Trees - Structure and Function. 2007 ; Vol. 21, No. 6. pp. 593-603.
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Estimating nutrient uptake by mature tree roots under field conditions : Challenges and opportunities. / Lucash, Melissa S.; Eissenstat, David M.; Joslin, J. Devereux; McFarlane, Karis J.; Yanai, Ruth D.

In: Trees - Structure and Function, Vol. 21, No. 6, 01.11.2007, p. 593-603.

Research output: Contribution to journalReview article

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T1 - Estimating nutrient uptake by mature tree roots under field conditions

T2 - Challenges and opportunities

AU - Lucash, Melissa S.

AU - Eissenstat, David M.

AU - Joslin, J. Devereux

AU - McFarlane, Karis J.

AU - Yanai, Ruth D.

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AB - Nutrient uptake by roots of mature trees is difficult to measure accurately under field conditions using existing methods. In this review, we discuss current techniques for measuring uptake at the root surface including excised roots, isotopic tracers, autoradiography, depletion, and lysimeters. Although these methods have provided many insights, each has drawbacks. Estimates of uptake are affected by the sampling scheme, experimental conditions, whether roots are excised or not, concentrations of ions, and the rate of efflux of ions. Microbes and mycorrhizas can also affect estimates of uptake. A greater focus on methods development is critical to advancing our understanding of nutrient uptake of mature trees under conditions representative of those in the field.

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