Shifts in soil phosphorus fractions under elevated CO2 and N addition in model forest ecosystems in subtropical China

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• 作者：Wenjuan Huang (1)
  Guoyi Zhou (1)
  Juxiu Liu (1)
  Honglang Duan (1)
  Xingzhao Liu (1)
  Xiong Fang (1)
  Deqiang Zhang (1)
  
• 关键词：Soil P fractions ; Elevated CO2 ; N addition ; Subtropical forests
• 刊名：Plant Ecology
• 出版年：2014
• 出版时间：November 2014
• 年：2014
• 卷：215
• 期：11
• 页码：1373-1384
• 全文大小：354 KB
• 参考文献：1. Aerts R, Chapin FS (2000) The mineral nutrition of wild plants revisited: a re-evaluation of processes and patterns. Adv Ecol Res 30:1-7 CrossRef
  2. Andresen LC, Michelsen A, Jonasson S, Schmidt IK, Mikkelsen TN, Ambus P, Beier C (2010) Plant nutrient mobilization in temperate heathland responds to elevated CO₂, temperature and drought. Plant Soil 328:381-96 CrossRef
  3. Attiwill PM, Adams MA (1993) Nutrient cycling in forests. New Phytol 124:561-82 CrossRef
  4. Berg B, De Santo AV, Rutigliano FA, Fierro A, Ekbohm G (2003) Limit values for plant litter decomposing in two contrasting soils-influence of litter elemental composition. Acta Oecol 24:295-02 CrossRef
  5. Blanes MC, Vinegla B, Salido MT, Carreira JA (2013) Coupled soil-availability and tree-limitation nutritional shifts induced by N deposition: insights from N to P relationships in Abies pinsapo forests. Plant Soil 366:67-1 CrossRef
  6. Block CE, Knoepp JD, Fraterrigo JM (2013) Interactive effects of disturbance and nitrogen availability on phosphorus dynamics of southern Appalachian forests. Biogeochemistry 112:329-42 CrossRef
  7. Blum JD, Klaue A, Nezat CA, Driscoll CT, Johnson CE, Siccama TG, Eagar C, Fahey TJ, Likens GE (2002) Mycorrhizal weathering of apatite as an important calcium source in base-poor forest ecosystems. Nature 417:729-31 CrossRef
  8. Braun S, Thomas VFD, Quiring R, Fluckiger W (2010) Does nitrogen deposition increase forest production? The role of phosphorus. Environ Pollut 158:2043-052 CrossRef
  9. Carreira JA, Garcia-Ruiz R, Lietor J, Harrison AF (2000) Changes in soil phosphatase activity and P transformation rates induced by application of N- and S-containing acid-mist to a forest canopy. Soil Biol Biochem 32:1857-865 CrossRef
  10. Chapin FS III, Matson PA, Mooney HA (2002) Principles of terrestrial ecosystem ecology. Springer-Verlag, New York
  11. Chen CR, Condron LM, Davis MR, Sherlock RR (2000) Effects of afforestation on phosphorus dynamics and biological properties in a New Zealand grassland soil. Plant Soil 220:151-63 CrossRef
  12. Chen CR, Sinaj S, Condron LM, Frossard E, Sherlock RR, Davis MR (2003) Characterization of phosphorus availability in selected New Zealand grassland soils. Nutr Cycl Agroecosys 65:89-00 CrossRef
  13. Chen CR, Condron LM, Xu ZH (2008) Impacts of grassland afforestation with coniferous trees on soil phosphorus dynamics and associated microbial processes: a review. Forest Ecol Manag 255:396-09 CrossRef
  14. Cleveland CC, Townsend AR, Taylor P et al (2011) Relationships among net primary productivity, nutrients and climate in tropical rain forest: a pan-tropical analysis. Ecol Lett 14:939-47 CrossRef
  15. Condron LM, Turner BL, Cade-Menun BJ (2005) Chemistry and dynamics of soil organic phosphorus. In: Sims JT, Sharpley AN (eds) Phosphorus: agriculture and the environment. ASA/CSSA/SSSA, Madison, pp 87-21
  16. Cross AF, Schlesinger WH (1995) A literature-review and evaluation of the Hedley fractionation-applications to the biogeochemical cycle of soil-phosphorus in natural ecosystems. Geoderma 64:197-14 CrossRef
  17. Cusack DF, Chou WW, Yang WH, Harmon ME, Silver WL, Lidet T (2009)
• 作者单位：Wenjuan Huang (1)
  Guoyi Zhou (1)
  Juxiu Liu (1)
  Honglang Duan (1)
  Xingzhao Liu (1)
  Xiong Fang (1)
  Deqiang Zhang (1)
  
  1. Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
  
• ISSN：1573-5052

文摘

Phosphorus (P) often limits plant growth in subtropical forests. Many studies have focused on plant P responses to rising atmospheric carbon dioxide (CO2) and increasing nitrogen (N) deposition; however, the response of soil P availability to these anthropogenic changes remains unclear. We used open-top chambers to study the changes in soil P fractions in model subtropical forests after 5?years of exposure to elevated CO2 and N addition. Soils studied here were highly weathered and P-deficient. Elevated CO2 increased plant available P in soils as well as P input from litter. The increase in soil P availability was related to the decreased recalcitrant P under elevated CO2. Soil P availability was not reduced by N addition due to the replenishment of P during litter decomposition. N addition led to a small increase in the most readily desorbed inorganic P. N addition with elevated CO2 depleted recalcitrant P. Our results suggest that elevated CO2 and N addition could maintain or even increase soil P availability.