Soil nitrogen availability varies with plant genetics across diverse river drainages

Dylan G. Fischer, Stephen C. Hart, Jennifer A. Schweitzer, Paul C. Selmants, Thomas G. Whitham

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Understanding covariance of plant genetics and soil processes may improve our understanding the role of plant genetics in structuring soils and ecosystem function across landscapes. We measured soil nitrogen (N) and phosphorus (P) availability using ion exchange resin bags within three river drainages across Utah and Arizona, USA. The three drainages spanned more than 1,000 km in distance, 8° of latitude, and varying climatic regimes, but were similarly dominated by stands of Populus fremontii (S. Watts), P. angustifolia (James), or natural hybrids between the two species. Soil N availability was consistently greater in P. fremontii stands compared to P. angustifolia stands, and hybrid stands were intermediate. However, we found that the influence of overstory type on soil P availability depended on the river drainage. Our study suggests that, even with a near doubling of mean soil N availability across these drainages, the relative genetic-based effects of the dominant plant on N availability remained consistent. These results expand upon previous work by: 1) providing evidence for linkages between plant genetic factors and ecosystem function across geographic scales; and 2) indicating that plant genetic-based effects on nutrient dynamics in a given ecosystem may differ among nutrients (e. g., N vs. P).

Original languageEnglish (US)
Pages (from-to)391-400
Number of pages10
JournalPlant and Soil
Volume331
Issue number1
DOIs
StatePublished - Jun 2010

Fingerprint

plant genetics
soil nitrogen
drainage
rivers
nitrogen
ecosystem function
Populus fremontii
river
soil
ecosystems
nutrient dynamics
overstory
Populus angustifolia
ion exchange resins
resin
ion exchange
nutrients
phosphorus
linkage (genetics)
bags

Keywords

  • Ecosystem genetics
  • Extended phenotype
  • Genes-to-ecosystems
  • Ion exchange resin bags
  • Nitrogen availability
  • Phosphorus availability
  • Populus
  • Riparian forests

ASJC Scopus subject areas

  • Soil Science
  • Plant Science

Cite this

Soil nitrogen availability varies with plant genetics across diverse river drainages. / Fischer, Dylan G.; Hart, Stephen C.; Schweitzer, Jennifer A.; Selmants, Paul C.; Whitham, Thomas G.

In: Plant and Soil, Vol. 331, No. 1, 06.2010, p. 391-400.

Research output: Contribution to journalArticle

Fischer, Dylan G. ; Hart, Stephen C. ; Schweitzer, Jennifer A. ; Selmants, Paul C. ; Whitham, Thomas G. / Soil nitrogen availability varies with plant genetics across diverse river drainages. In: Plant and Soil. 2010 ; Vol. 331, No. 1. pp. 391-400.
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