Leaf N, P Stoichiometry and Nutrient Resorption in Phosphorus-Enriched Soils in a Mountainous Region of the Dianchi Lake Watershed

Abstract:

Understanding the leaf N, P concentrations and nutrient resorption of plants growing in phosphorus–enriched soil (PES) can provide new data for ecostoichiometric research and ecological model building. In this study, 117 green leaves and 53 senesced leaves of dominant plants in PES in the Dianchi Lake watershed, SW China, were sampled. Plants in PES had high fresh leaf P (4.60mg/g), senesced leaf P (2.70mg/g), and low fresh leaf N: P (4.41), senesced leaf N: P (3.21). P resorption efficiency (PRE) (25.09%) was significantly lower than N resorption efficiency (NRE) (52.68%). Forbs had the highest P content in fresh (5.35mg/g) and senesced leaf (3.25mg/g) among plants forms. Although NRE was varied among plant forms, the difference in PRE was not significant. In conclusion, PES has a tremendous impact on the patterns of leaf N, P and nutrient resorption of different plant forms, those results were different from general results.

• Periodical: Advanced Materials Research (Volumes 955-959)
• Pages: 3687-3690
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.955-959.3687
• Online since: June 2014
• Authors: Kai Yan, Changqun Duan*, Long Zhang, Xin Xv, Change Liu, Fuke Yu
• Keywords: Plant Forms, Resorption Efficiency, Resorption Proficiency

References

[1] K.T. Killingbeck, in: Ecology, 77 (1996) 1716-1727.

[2] R.W. Sterner, and J.J. Elser, in: Princeton University Press, (2002).

[3] P.B. Reich, and J. Oleksyn, in: Proceedings of the National Academy of Sciences of the United States of America, 101 (2004) 11001-11006.

[4] Z. Yuan, and H.Y. Chen, in: Global Ecology and Biogeography, 18 (2009) 11-18.

[5] R.K. Kobe, C.A. Lepczyk, and M. Iyer, in: Ecology, 86 (2005) 2780-2792.

[6] W. Han, J. Fang, D. Guo, and Y. Zhang, in: New Phytologist, 168 (2005) 377-385.

[7] F. Zapata, and R.N. Roy, in: FAO Fertilizer and Plant Nutrition Bulletin, (2004) 1-148.

[8] K. Yan, D.G. Fu, F. He, C.Q. Duan, in: Chinese Journal of Plant Ecology, 35 (2011) 353-361(in Chinese).

[9] J. Cornelissen, S. Lavorel, E. Garnier, S. Diaz, N. Buchmann, D. Gurvich, P. Reich, H. Ter Steege, H. Morgan, and M. Van Der Heijden, in: Australian Journal of Botany, 51 (2003) 335-380.

DOI: 10.1071/bt02124

[10] J. Novak, and A. Chan, in: Critical reviews in plant sciences, 21 (2002) 493-509.

[11] Y.H. Chen, W.X. Han, L.Y. Tang, Z.Y. Tang, and J.Y. Fang, in: soil and plant growth form, Ecography, 34 (2011) 1-7.