skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Building a better foundation: improving root-trait measurements to understand and model plant and ecosystem processes

Journal Article · · New Phytologist
DOI:https://doi.org/10.1111/nph.14459· OSTI ID:1419621
 [1];  [2];  [3];  [4];  [4]; ORCiD logo [1];  [2];  [2];  [2];  [5];  [6];  [7];  [8]
  1. Univ. of Minnesota, Minneapolis, MN (United States)
  2. Chinese Academy of Sciences (CAS), Beijing (China)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Pennsylvania State Univ., University Park, PA (United States)
  5. Forschungszentrum Julich (Germany)
  6. Univ. of Minnesota, Minneapolis, MN (United States); Univ. of Western Sydney, NSW (Australia). Hawkesbury Inst. for the Environment
  7. Polish Academy of Sciences (PAS), Krakow (Poland)
  8. George Washington Univ., Washington, DC (United States)

Trait-based approaches provide a useful framework to investigate plant strategies for resource acquisition, growth, and competition, as well as plant impacts on ecosystem processes. Despite significant progress capturing trait variation within and among stems and leaves, identification of trait syndromes within fine-root systems and between fine roots and other plant organs is limited. Here we discuss three underappreciated areas where focused measurements of fine-root traits can make significant contributions to ecosystem science. These include assessment of spatiotemporal variation in fine-root traits, integration of mycorrhizal fungi into fine-root-trait frameworks, and the need for improved scaling of traits measured on individual roots to ecosystem-level processes. Progress in each of these areas is providing opportunities to revisit how below-ground processes are represented in terrestrial biosphere models. Targeted measurements of fine-root traits with clear linkages to ecosystem processes and plant responses to environmental change are strongly needed to reduce empirical and model uncertainties. Further identifying how and when suites of root and whole-plant traits are coordinated or decoupled will ultimately provide a powerful tool for modeling plant form and function at local and global scales.

Research Organization:
Pennsylvania State Univ., University Park, PA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
SC0012003; AC05-00OR22725
OSTI ID:
1419621
Alternate ID(s):
OSTI ID: 1362227; OSTI ID: 1400473
Journal Information:
New Phytologist, Vol. 215, Issue 1; ISSN 0028-646X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 133 works
Citation information provided by
Web of Science

References (46)

Quantitative 3D Analysis of Plant Roots Growing in Soil Using Magnetic Resonance Imaging journal January 2016
Carbon cost of plant nitrogen acquisition: global carbon cycle impact from an improved plant nitrogen cycle in the Community Land Model journal January 2016
Improving the representation of roots in terrestrial models journal November 2014
Substantial nitrogen acquisition by arbuscular mycorrhizal fungi from organic material has implications for N cycling journal July 2010
Strong effect of climate on ectomycorrhizal fungal composition: evidence from range overlap between two mountains journal February 2015
Redefining fine roots improves understanding of below-ground contributions to terrestrial biosphere processes journal March 2015
New handbook for standardised measurement of plant functional traits worldwide journal January 2013
Back to the future: natural history and the way forward in modern fungal ecology journal December 2014
Scaling of respiration to nitrogen in leaves, stems and roots of higher land plants journal August 2008
Rapid decline in nitrate uptake and respiration with age in fine lateral roots of grape: implications for root efficiency and competitive effectiveness journal October 2004
The worldwide leaf economics spectrum journal April 2004
Root structure-function relationships in 74 species: evidence of a root economics spectrum related to carbon economy journal January 2016
Intrinsic effects of species on leaf litter and root decomposition: a comparison of temperate grasses from North and South America journal August 2006
Predicting fine root lifespan from plant functional traits in temperate trees journal June 2012
Let the concept of trait be functional! journal May 2007
Tragedy of the commons as a result of root competition journal August 2001
Fine root decomposition rates do not mirror those of leaf litter among temperate tree species journal October 2009
Digging deeper: fine-root responses to rising atmospheric CO2 concentration in forested ecosystems journal December 2009
Organic nutrient uptake by mycorrhizal fungi enhances ecosystem carbon storage: a model-based assessment: Organic nutrient uptake enhances soil C journal March 2011
Leaf Life-Span in Relation to Leaf, Plant, and Stand Characteristics among Diverse Ecosystems journal February 1992
New insights into carbon allocation by trees from the hypothesis that annual wood production is maximized journal June 2013
Scots pine fine roots adjust along a 2000-km latitudinal climatic gradient journal June 2016
Towards a multidimensional root trait framework: a tree root review journal May 2016
The mycorrhizal-associated nutrient economy: a new framework for predicting carbon-nutrient couplings in temperate forests journal April 2013
Root structural and functional dynamics in terrestrial biosphere models - evaluation and recommendations journal September 2014
Integrated plant phenotypic responses to contrasting above- and below-ground resources: key roles of specific leaf area and root mass fraction journal March 2015
Substantial nutrient resorption from leaves, stems and roots in a subarctic flora: what is the link with other resource economics traits? journal March 2010
Spatial heterogeneity of fine root biomass and soil carbon in a California oak savanna illuminates plant functional strategy across periods of high and low resource supply: FINE ROOT BIOMASS AND SOIL CARBON SCALE journal June 2014
Global Allocation Rules for Patterns of Biomass Partitioning in Seed Plants journal February 2002
The world-wide ‘fast-slow’ plant economics spectrum: a traits manifesto journal February 2014
Functional traits, productivity and effects on nitrogen cycling of 33 grassland species journal October 2002
Leading dimensions in absorptive root trait variation across 96 subtropical forest species journal May 2014
Review of root dynamics in forest ecosystems grouped by climate, climatic forest type and species journal July 1995
Bridging mycorrhizal genomics, metagenomics and forest ecology journal March 2013
Going underground: root traits as drivers of ecosystem processes journal December 2014
Representing leaf and root physiological traits in CLM improves global carbon and nitrogen cycling predictions: LEAF AND ROOT TRAITS IN CLM journal May 2016
Variation in sugar maple root respiration with root diameter and soil depth journal October 1998
Costs and benefits of constructing roots of small diameter journal June 1992
Tree-mycorrhizal associations detected remotely from canopy spectral properties journal April 2016
Seasonal variation in chemistry, but not morphology, in roots of Quercus robur growing in different soil types journal March 2015
Evolutionarily Stable Strategy Carbon Allocation to Foliage, Wood, and Fine Roots in Trees Competing for Light and Nitrogen: An Analytically Tractable, Individual-Based Model and Quantitative Comparisons to Data journal February 2011
How does biomass distribution change with size and differ among species? An analysis for 1200 plant species from five continents journal July 2015
Root morphology and mycorrhizal symbioses together shape nutrient foraging strategies of temperate trees journal July 2016
Neutron imaging reveals internal plant water dynamics journal January 2013
Greater carbon allocation to mycorrhizal fungi reduces tree nitrogen uptake in a boreal forest journal December 2015
Assessing the generality of global leaf trait relationships journal February 2005

Cited By (30)

Non‐random association patterns in a plant–mycorrhizal fungal network reveal host–symbiont specificity journal May 2018
Community‐level economics spectrum of fine‐roots driven by nutrient limitations in subalpine forests journal November 2018
Maintaining connectivity: understanding the role of root order and mycelial networks in fine root decomposition of woody plants journal September 2017
Global meta-analysis reveals different patterns of root tip adjustments by angiosperm and gymnosperm trees in response to environmental gradients journal November 2018
The scaling of fine root nitrogen versus phosphorus in terrestrial plants: A global synthesis journal August 2019
Global patterns of dead fine root stocks in forest ecosystems journal April 2018
Characterizing fine-root traits by species phylogeny and microbial symbiosis in 11 co-existing woody species journal November 2019
Exploring patterns of fine root morphological, chemical, and anatomical traits of 12 tree species from visible–near-infrared spectral reflectance journal October 2019
Vegetation type controls root turnover in global grasslands: XXXX journal January 2019
Phenolic root exudate and tissue compounds vary widely among temperate forest tree species and have contrasting effects on soil microbial respiration journal February 2018
Nutrient acquisition strategies in agroforestry systems journal August 2019
Intraspecific Fine-Root Trait-Environment Relationships across Interior Douglas-Fir Forests of Western Canada journal June 2019
Fine-root traits are linked to species dynamics in a successional plant community journal February 2019
Fine-root morphological trait variation in tropical forest ecosystems: an evidence synthesis journal November 2019
Changes in above and belowground traits of a rhizome clonal plant explain its predominance under nitrogen addition journal September 2018
Rapid increases in fine root biomass and production following cessation of anthropogenic disturbances in degraded forests journal January 2018
Regional distribution patterns of wetland monocots with different root turnover strategies are associated with local variation in soil temperature journal December 2019
Natural variation on whole‐plant form in the wild is influenced by multivariate soil nutrient characteristics: natural selection acts on root traits journal January 2020
Using plant, microbe, and soil fauna traits to improve the predictive power of biogeochemical models journal October 2018
Fast plants in deep water: introducing the whole‐soil column perspective journal December 2019
Effects of morphology and stand structure on root biomass and length differed between absorptive and transport roots in temperate trees journal July 2019
Fine root classification matters: nutrient levels in different functional categories, orders and diameters of roots in boreal Pinus sylvestris across a latitudinal gradient journal December 2019
Evolutionary history resolves global organization of root functional traits journal February 2018
Root trait-mediated belowground competition and community composition of a temperate steppe under nitrogen enrichment journal February 2019
Species and root traits impact macroaggregation in the rhizospheric soil of a Mediterranean common garden experiment journal September 2017
Belowground plant functional ecology: Towards an integrated perspective journal June 2018
The Responses of Forest Fine Root Biomass/Necromass Ratio to Environmental Factors Depend on Mycorrhizal Type and Latitudinal Region journal May 2018
Intraspecific Fine-Root Trait-Environment Relationships across Interior Douglas-Fir Forests of Western Canada text January 2019
Temperature and moisture dependence of daily growth of Scots pine (Pinus sylvestris L.) roots in Southern Finland journal December 2019
Shifts in Ectomycorrhizal Fungal Communities and Exploration Types Relate to the Environment and Fine-Root Traits Across Interior Douglas-Fir Forests of Western Canada journal May 2019