Taxonomic identity, phylogeny, climate and soil fertility as drivers of leaf traits across Chinese grassland biomes

Jin Sheng He, Xiangping Wang, Bernhard Schmid, Dan F.B. Flynn, Xuefei Li, Peter B. Reich, Jingyun Fang

Research output: Contribution to journalArticle

43 Scopus citations

Abstract

Although broad-scale inter-specific patterns of leaf traits are influenced by climate, soil, and taxonomic identity, integrated assessments of these drivers remain rare. Here, we quantify these drivers in a field study of 171 plant species in 174 sites across Chinese grasslands, including the Tibetan Plateau, Inner Mongolia, and Xinjiang. General linear models were used to partition leaf trait variation. Of the total variation in leaf traits, on average 27% is due to taxonomic or phylogenetic differences among species within sites (pure species effect), 29% to variation among sites within species (pure site effect), 38% to joint effects of taxonomic and environmental factors (shared effect), and 6. 2% to within-site and within-species variation. Examining the pure site effect, climate explained 7. 8%, soil explained 7. 4%, and climate and soil variables together accounted for 11%, leaving 18% of the inter-site variation due to factors other than climate or soil. The results do not support the hypothesis that soil fertility is the "missing link" to explain leaf trait variation unexplained by climatic factors. Climate- and soil-induced leaf adaptations occur mostly among species, and leaf traits vary little within species in Chinese grassland plants, despite strongly varying climate and soil conditions.

Original languageEnglish (US)
Pages (from-to)551-561
Number of pages11
JournalJournal of Plant Research
Volume123
Issue number4
DOIs
StatePublished - Jan 12 2010

Keywords

  • Functional traits
  • Inner Mongolia
  • Leaf economics spectrum
  • Photosynthesis
  • Soil fertility
  • Tibetan Plateau

Fingerprint Dive into the research topics of 'Taxonomic identity, phylogeny, climate and soil fertility as drivers of leaf traits across Chinese grassland biomes'. Together they form a unique fingerprint.

  • Cite this