References:
     [1] Mitsch, W. J., Gosselink, J. G. Wetlands [M]. 5th Edition. New York: John Wiley & Sons Inc., 2015.
     [2] Zhang, Q. J., Wang, Z. S., Xia, S. X., et al. Hydrologic-induced concentrated soil nutrients and improved plant growth increased carbon storage in a floodplain wetland over wet-dry alternating zones [J]. Science of the Total Environment, 2022: 822.
     [3] Zhang, Q. J., Zhang, G. S., Wan, S. X., et al. Effects of herbivorous overwintering migratory birds' droppings on the decomposition of Carex cinerascens Kükenth and C, N, P release in Lake Poyang Wetland [J]. Journal of Lake Sciences, 2019, 31(3): 814-824.
     [4] Zhang, Q. J., Zhang, G. S., Yu, X. B., et al. Dynamic characteristics of the decomposition rate and carbon, nitrogen and phosphorus release of the dominant plants in Poyang Lake Wetland [J]. Acta Ecologica Sinica, 2020, 40(24): 8905-8916.
     [5] Cornelissen, J. H. C. An experimental comparison of leaf decomposition rates in a wide range of temperate plant species and types [J]. The Journal of Ecology, 1996, 84(4): 573.
     [6] Zhang, Q. J., Yu, X. B., Zhang, G. S. Variation characteristics of the decomposition process δ13C and δ15N of three dominant plants litter in Lake Poyang Wetland [J]. Journal of Lake Sciences, 2023, 35(5): 1694-1704.
     [7] Kramer, M. G., Sollins, P., Sletten, R. S. et al. N isotope fractionation and measures of organic matter alteration during decomposition [J]. Ecology, 2003, 84(8): 2021-2025.
     [8] Jiang, C. M., Yu, W. T. Combined influence of external nitrogen and soil contact on plant residue decomposition and indications from stable isotope signatures[J]. Environmental Science and Pollution Research, 2019, 26(7): 6791-6800.
     [9] Chen, Q., Wang, Y. D., Guo, C. C., et al. Foliar stable carbon isotope ratios of Phragmites australis and the relevant environmental factors in marsh wetlands in Tianjin [J]. Chinese Journal of Plant Ecology, 2015, 39(11): 1044-1052.
     [10] Zhang, L. Z. Carbon and nitrogen stable isotope characteristics of three major reed wetlands in Tianjin and their response to environmental changes [D]. Tianjin: Tianjin Normal University, 2025.
     [11] Zhang Q. J., Yu, X. B., Qian, J, X., et al. Distribution characteristics of plant communities and soil organic matter and main nutrients in the Poyang Lake Nanji Wetland [J]. Acta Ecologica Sinica, 2012, 32(12): 3656-3669.
     [12] Editorial Board of Poyang Lake Research. Research on Poyang Lake [M]. Shanghai: Shanghai Science and Technology Press, 1988.
     [13] Liu, X. Z., Hu, B. H. Comprehensive Scientific Investigation of Nanjishan Wetland Nature Reserve in Jiangxi Province [M]. Beijing: China Forestry Publishing House, 2005.
     [14] Zhang, Q. J., Xia, S. X., Liu, Y., et al. A dataset of wetland plants and soil carbon, nitrogen, phosphorus, and trace elements under across different elevation gradients in Poyang Lake [J]. China Scientific Data, 2025,10(1): 255-265.
     [15] Ziegler, F., Kogel, I., Zech, W. Alteration of gymnosperm and angiosperm lignin during decomposition in forest humus layers [J]. Zeitschrift Für Pflanzenernährung Und Bodenkunde, 1986, 149(3): 323-331.
     [16] Olson, J. S. Energy storage and the balance of producers and decomposers in ecological systems [J]. Ecology, 1963, 44(2): 322-331.
     [17] Wider, R. K., Lang, G. E. A critique of the analytical methods used in examining decomposition data obtained from litter bags [J]. Ecology, 1982, 63(6): 1636-1642.
     [18] Liao, C. Z., Luo, Y. Q., Fang, C. M., et al. Litter pool sizes, decomposition, and nitrogen dynamics in Spartina alterniflora-invaded and native coastal marshlands of the Yangtze Estuary [J]. Oecologia, 2008, 156(3): 589-600.
     [19] Wrubleski, D. A., Murkin, H. R., Van Der Valk, A, G., et al. Decomposition of emergent macrophyte roots and rhizomes in a northern prairie marsh [J]. Aquatic Botany, 1997, 58(2): 121-134.
     [20] Connin, S. L., Feng, X., Virginia, R. A. Isotopic discrimination during long-term decomposition in an arid land ecosystem [J]. Soil Biology and Biochemistry, 2001, 33(1): 41-51.