Role of plant species and soil phosphorus concentrations in determining phosphorus: nutrient stoichiometry in leaves and fine roots

Research output: Contribution to journalJournal articleResearchpeer-review

  • Meng Li
  • Caihong Huang
  • Tianxue Yang
  • Marios Drosos
  • Jinzhi Wang
  • Xiaoming Kang
  • Liu, Fulai
  • Beidou Xi
  • Zhengyi Hu

Aims: Terrestrial plants require relative stable stoichiometry of elements for their growth. The effects of plant species and soil phosphorus (P) concentration on P:nutrient stoichiometry in plant remains still unknown. Methods: Soil and plant samples were collected from 88 sites in a P-rich area of a subtropical portion of China to examine the linkage of soil P concentration with the concentrations and stoichiometry of 12 nutrient elements (C, N, P, S, K, Ca, Mg, Fe, Al, Zn, Mn and Na) for different plant species. Results: Soil rich in P increased the concentrations of S, P, K, Ca, Fe, Mg, Mn, Al, and Na in the plants, but induced a strong antagonism to Zn. Meanwhile, the concentrations of C and N in the leaf was restrained when the plants grew in soil under high P concentration. Clustering analysis showed that plant species were categorized according to soil P concentration into P > 2 mg g−1 and P < 2 mg g−1 groups. However, insignificant dissimilarity among plant species was noticed. Conclusions: The stoichiometry of P:nutrient in the plant organs was strongly affected by soil P concentrations and this could reflect soil nutrient status over plant species. Therefore, the difference in soil P concentration is a major driver triggering the variation in elemental stoichiometry.

Original languageEnglish
JournalPlant and Soil
Issue number1-2
Pages (from-to)231-242
Publication statusPublished - 1 Dec 2019

    Research areas

  • Phosphorus, Plant nutrition, Plant-soil system, Stoichiometry

ID: 234143970