Effects of nutrient addition on foliar phosphorus fractions and their resorption in different-aged leaves of Chinese fir in subtropical China
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Background and aims
Anthropogenic activities have increased nitrogen (N) and phosphorus (P) inputs to terrestrial ecosystems, which may significantly alter P cycle through accumulation and resorption.
We measured the concentrations of four different P fractions (inorganic, nucleic, sugar, and residual P) in both live leaves and senescent leaves in N and P additions in an evergreen plantation forest of subtropical China.
Adding moderate N plus P increased total, inorganic, and sugar P concentrations, which sustained the leaf N/P balance and alleviated P limitation in Chinese fir (Cunninghamia lanceolata) plantation. Nitrogen and P (total, nucleic, and residue P) resorption proficiencies did but P (each of various fractions) resorption efficiency did not respond to nutrient addition. The concentrations and resorption efficiencies of most P fractions were lower in the old than young leaves, but their resorption proficiencies except for sugar P weren’t different.
Internal P cycles of Chinese fir could be strongly altered through increasing accumulation of inorganic P and sugar P factions in respond to soil P enrichment when combined with suitable N addition. The easily degradable P (inorganic and sugar P) were preferentially resorbed regardless of nutrient addition. Leaf age was a key-factor influencing the resorption extent of P fractions in Chinese fir.
KeywordsFertilization Leaf traits Forest trees Nitrogen deposition Nutrient resorption Phosphorus
This work was supported by National Natural Science Foundation of China (grant numbers 31730014, 31870427 and 31760200); and Jiangxi Provincial Department of Science and Technology (grant numbers 20165BCB19006 & 20181ACH80006). We thank Yu Liu, Liqun Zou and Xiulan Zhang for their help with field sampling and laboratory measurement.
- Allen SE (1989) Chemical analysis of ecological materials. Blackwell Scientific Publications, OxfordGoogle Scholar
- Close DC, Beadle CL (2004) Total, and chemical fractions, of nitrogen and phosphorus in Eucalyptus seedling leaves: effects of species, nursery fertiliser management and transplanting. Plant Soil 259:85–95. https://doi.org/10.1023/b:plso.0000020942.97995.f3 CrossRefGoogle Scholar
- Denton MD, Veneklaas EJ, Freimoser FM, Lambers H (2007) Banksia species (Proteaceae) from severely phosphorus-impoverished soils exhibit extreme efficiency in the use and re-mobilization of phosphorus. Plant Cell Environ 30:1557–1565. https://doi.org/10.1111/j.1365-3040.2007.01733.x CrossRefPubMedGoogle Scholar
- Dong WY, Zhang XY, Liu XY, Fu XL, Chen FS, Wang HM, Sun X, Wen X (2015) Responses of soil microbial communities and enzyme activities to nitrogen and phosphorus additions in Chinese fir plantations of subtropical China. Biogeosciences 12:5537–5546. https://doi.org/10.5194/bg-12-5537-2015 CrossRefGoogle Scholar
- Feller IC, Whigham DF, O’Neill JP, McKee KL (1999) Effects of nutrient enrichment on within-stand cycling in a mangrove forest. Ecology 80:2193–2205. https://doi.org/10.1890/0012-9658(1999)080[2193:EONEOW]2.0.CO;2 CrossRefGoogle Scholar
- Lambers H, Chapin FS III, Pons TL (2008) Plant physiological ecology. Springer Science & Business Media. https://doi.org/10.1007/978-0-387-78341-3
- Lambers H, Cawthray GR, Giavalisco P, Kuo J, Laliberté E, Pearse SJ, Scheible WR, Stitt M, Teste F, Turner BL (2012) Proteaceae from severely phosphorus-impoverished soils extensively replace phospholipids with galactolipids and sulfolipids during leaf development to achieve a high photosynthetic phosphorus-use-efficiency. New Phytol 196:1098–1108. https://doi.org/10.1111/j.1469-8137.2012.04285.x CrossRefPubMedGoogle Scholar
- Mimura T (1995) Homeostasis and transport of inorganic phosphate in plants. Plant Cell Physiol 36:1–7. https://doi.org/10.1093/oxfordjournals.pcp.a078724 CrossRefGoogle Scholar
- Nambiar EKS, Fife DN (1987) Growth and nutrient retranslocation in needles of radiata pine in relation to nitrogen supply. Ann Bot 60:147–156. https://doi.org/10.1093/oxfordjournals.aob.a087431 CrossRefGoogle Scholar
- Soudzilovskaia NA, Onipchenko VG, Cornelissen JH, Aerts R (2007) Effects of fertilisation and irrigation on ‘foliar afterlife’ in alpine tundra. J Veg Sci 18:755–766. https://doi.org/10.1111/j.1654-1103.2007.tb02591.x CrossRefGoogle Scholar
- Sterner RW, Elser JJ (2002) Ecological stoichiometry: the biology of elements from molecules to the biosphere. Princeton University Press, Princeton, New JerseyGoogle Scholar
- Tang Y, Zhang X, Li D, Wang H, Chen F, Fu X, Yu G (2016) Impacts of nitrogen and phosphorus additions on the abundance and community structure of ammonia oxidizers and denitrifying bacteria in Chinese fir plantations. Soil Biol Biochem 103:284–293. https://doi.org/10.1016/j.soilbio.2016.09.001 CrossRefGoogle Scholar