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Global-scale latitudinal patterns of plant fine-root nitrogen and phosphorus

Author

Listed:
  • Z.Y. Yuan

    (Faculty of Natural Resources Management, Lakehead University)

  • Han Y.H. Chen

    (Faculty of Natural Resources Management, Lakehead University
    College of Forestry and Gardening, Anhui Agricultural University)

  • Peter B. Reich

    (University of Minnesota
    Hawkesbury Institute for the Environment, University of Western Sydney)

Abstract

Most water and essential soil nutrient uptake is carried out by fine roots in plants. It is therefore important to understand the global geographic patterns of fine-root nitrogen and phosphorus cycling. Here, by compiling plant root data from 211 studies in 51 countries, we show that live fine roots have low nitrogen (N) and phosphorus (P), but similar N:P ratios when compared with green leaves. The fine-root N:P ratio differs between biomes and declines exponentially with latitude in roots of all diameter classes. This is in contrast to previous reports of a linear latitudinal decline in green leaf N:P, but consistent with nonlinear declines in leaf litter N:P. Whereas the latitudinal N:P decline in both roots and leaves reflects collective influences of climate, soil age and weathering, differences in the shape of the response function may be a result of their different N and P use strategies.

Suggested Citation

  • Z.Y. Yuan & Han Y.H. Chen & Peter B. Reich, 2011. "Global-scale latitudinal patterns of plant fine-root nitrogen and phosphorus," Nature Communications, Nature, vol. 2(1), pages 1-6, September.
    • Handle: RePEc:nat:natcom:v:2:y:2011:i:1:d:10.1038_ncomms1346
    DOI: 10.1038/ncomms1346
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    Cited by:

    1. Helong Yang & Yiqiang Dong & Shazhou An & Zongjiu Sun & Peiying Li & Huixia Liu, 2024. "Effects of temporal variation and grazing intensity on leaf C:N:P stoichiometry in Northwest desert, China," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 70(3), pages 154-163.
    2. Z Y Yuan & Han Y H Chen, 2012. "Indirect Methods Produce Higher Estimates of Fine Root Production and Turnover Rates than Direct Methods," PLOS ONE, Public Library of Science, vol. 7(11), pages 1-6, November.
    3. Zhiwei Cao & Xi Fang & Wenhua Xiang & Pifeng Lei & Changhui Peng, 2020. "The Vertical Differences in the Change Rates and Controlling Factors of Soil Organic Carbon and Total Nitrogen along Vegetation Restoration in a Subtropical Area of China," Sustainability, MDPI, vol. 12(16), pages 1-17, August.
    4. Shuang Yang & Zhaoyong Shi & Yichun Sun & Xiaohui Wang & Wenya Yang & Jiakai Gao & Xugang Wang, 2022. "Stoichiometric Ratios of Carbon, Nitrogen and Phosphorus of Shrub Organs Vary with Mycorrhizal Type," Agriculture, MDPI, vol. 12(7), pages 1-14, July.
    5. Guanghua Jing & Tianming Hu & Jian Liu & Jimin Cheng & Wei Li, 2020. "Biomass Estimation, Nutrient Accumulation, and Stoichiometric Characteristics of Dominant Tree Species in the Semi-Arid Region on the Loess Plateau of China," Sustainability, MDPI, vol. 12(1), pages 1-16, January.

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