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https://doi.org/10.5194/bg-2018-112
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-2018-112
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

  16 Mar 2018

16 Mar 2018

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This discussion paper is a preprint. It has been under review for the journal Biogeosciences (BG). The manuscript was not accepted for further review after discussion.

Global patterns of leaf nutrient resorption in herbaceous plants

Zhiqiang Wang1,*, Zhexuan Fan2,*, Qi Zhao1, Jinzhi Ran3, and Karl J. Niklas4 Zhiqiang Wang et al.
  • 1The Institute for Advanced Study, Chengdu University, Chengdu 610106, China
  • 2State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510006, China
  • 3State Key Laboratory of Grassland and Agro-Ecosystems, School of Life Sciences Lanzhou University, Lanzhou 730000, China
  • 4Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, New York 14853, USA
  • *These authors contributed equally to this work.

Abstract. Nutrient resorption plays an important role in plant ecology because it plays a key role in nutrient conservation strategies of plants. However, our current knowledge about the patterns of nutrient resorption among herbaceous species at a global scale is still inadequate. Here, we present a meta-analysis using a global dataset of nitrogen (N) and phosphorus (P) resorption efficiency spanning 521 observations and 248 herbaceous species. This analysis shows that the N resorption efficiency (NRE) and P resorption efficiency (PRE) across all herbaceous plant groups are 54.7 % and 64.5 %, respectively. Across all species, NRE, PRE and N : P resorption ratios (NRE : PRE) vary statistically significantly at a global scale, i.e., NRE, PRE and NRE : PRE increase with increasing latitude but decrease with increasing mean annual temperature (MAT) and mean annual precipitation (MAP). For different functional groups, similar patterns of NRE, PRE and NRE : PRE with respect to latitude, MAT and MAP are observed. Our study are very important complementary to global-scale studies of nutrient resorption and also can inform attempts to model biogeochemical cycling at a global scale.

Zhiqiang Wang et al.

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Zhiqiang Wang et al.

Zhiqiang Wang et al.

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