Sedimentary Phosphorus Forms Under Disturbances and Algae in Taihu Lake

CHEN Jun1 LI Da-peng1 ZHU Pei-ying1 HUANG Yong1 WANG Ren1

(1.School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China 215009)

【Abstract】Sedimentary phosphorus forms were investigated to clarify the release of sedimentary phosphorus forms under the repeated disturbance with the addition of algae at different initial concentrations. The sediments and overlying water were taken from the Meiliang Bay in Taihu Lake. The results showed that the concentrations of NH4Cl-P and Res-P decreased, while the content of Fe/ Al-P and CaP increased without disturbance. In addition, the Ca-P increased with the increase of the initial concentration of algae and the net increase of Ca-P increased by 48% (30 μg·L−1), 66% (60 μg·L−1), 74% (120 μg·L−1), respectively. However, under the disturbance, the NH4Cl-P and Res-P were significantly reduced, the Fe/Al-P increased significantly. The percentage of Fe/Al-P to TP was up to 66.2% (average of the 3 experiments with the addition of algae of 30 μg·L−1, 60 μg·L−1 and 120 μg·L−1), it was higher than the value (53.4%, average of the 3 experiments) without the disturbance. Moreover, under the disturbance, the percentage of Ca-P to TP was 24.1% (average of the 3 experiments with the addition of algae of 30 μg·L−1, 60 μg·L−1 and 120 μg·L−1) and it was slightly lower than that (33.0%, average of the 3 experiments) without the disturbance. It is suggested that the coexistence of disturbance and algae facilitated the formation of Fe/ Al-P, but the algae accelerated the formation of Ca-P without disturbance.

【Keywords】 disturbance; algae; phosphorus; sediment; migration and transformation; Taihu Lake;

【DOI】

【Funds】 National Natural Science Foundation of China (51178284, 51278523) The fourth phase of “333” project in Jiangsu Province Project for Cultivation and Selection of “High-level Talents in Six Industries” in Jiangsu Province (2013 J N 11B-022) Second phase of characteristic & preponderant discipline in Jiangsu Province

Download this article

(Translated by 刘涛)

    References

    [1] Lennox L J. Sediment-water exchange in Lough Ennell with particular Reference to phosphorus [J]. Water Research, 1984, 18 (12): 1483–1 485.

    [2] Zhao J G, Qiao Y M. Distribution characteristics of phosphorus forms in surface sediments of the Shantou Bay in China [J]. Environmental Science, 2012, 33 (6): 1 823–1 831 (in Chinese).

    [3] Jin X D, Wu H, Chen Z M, et al . Phosphorus fractions, sorption characteristics and its release in the sediments of Yangtze Estuary Reservoir, China [J]. Environmental Science, 2015, 36 (2): 448–456 (in Chinese).

    [4] Neal C, Neal M, Leeks G J L, et al. Suspended sediment and particulate phosphorus in surface waters of the upper Thames Basin, UK [J]. Journal of Hydrology, 2006, 330 (1–2): 142–154.

    [5] You B S, Wang T C, Fan C X, et al . Effects of sediment resuspension on aqueous nutrient loading in grass type zone of Lake Taihu [J]. Environmental Science, 2008, 29 (1): 26–31 (in Chinese).

    [6] Li D P, Huang Y, Li W G. Transformation of phosphorus forms in the sediments under the conditions of sediments re-suspension [J]. Environmental Science, 2008, 29 (5): 1 289–1 294 (in Chinese).

    [7] Li D P , Wang J, Huang Y. Phosphorus exchange between suspended solids sediments overlying water under repeated disturbance [J]. Environmental Science, 2013, 34 (6): 2 191–2 197 (in Chinese).

    [8] Xiong Q, Jiao L X, Wang S R, et al. Characteristics and bioavailability of organic phosphorus from different sources of sediments in Dianchi Lake [J]. Environmental Science, 2014, 35 (11): 4 118–4 126 (in Chinese).

    [9] Cyr H, Ma Cabe S K, Nürnberg G K. Phosphorus sorption experiments and the potential for internal phosphorus loading in littoral areas of a stratified lake [J]. Water Research, 2009, 43 (6): 1 654–1 666.

    [10] Wang M, Wu X F, Li D P, et al . Annual variation of different phosphorus forms and response of algae growth in Meiliang Bay of Taihu Lake [J]. Environmental Science, 2015, 36 (1): 80–86 (in Chinese).

    [11] Yuan H Z, Shen J, Liu E F, et al. Characteristic of phosphorus release with the control of p H of sediments from Meiliang Bay, Lake Taihu [J]. Lake Sciences, 2009, 21 (5): 663–668.

    [12] Ellison M E, Brett M T. Particulate phosphorus bioavailability as a function of stream flow and land cover [J]. Water Research, 2006, 40 (6): 1 258–1 268.

    [13] Zhu M Y, Zhu G W, Li W, et al. Estimation of the algalavailable phosphorus pool in sediments of a large, shallow eutrophic lake (Taihu, China) using profiled SMT fractional analysis [J]. Environmental Pollution, 2013, 173: 216–223.

    [14] Hieltjes A H M, Lijklema L. Fractionation of inorganic phosphates in calcareous sediments [J]. Journal of Environmental Quality, 1980, 9 (3): 405–407.

    [15] Qin B Q, Hu W P, Chen W M, et al . Studies on the hydrodynamic processes and related factors in Meiliang Bay, Northern Taihu Lake, China [J]. Journal of Lake Sciences, 2000, 12 (4): 327–334 (in Chinese).

    [16] Ding L, Pang Y, Li L, et al. Simulation study on algal dynamics under different hydrodynamic conditions [J]. Acta Ecologica Sinica, 2005, 25 (8): 1 863–1 868 (in Chinese).

    [17] Hu W P, Jøgensen S E, Zhang F B, et al. A model on the carbon cycling in Lake Taihu, China [J]. Ecological Modelling, 2011, 222 (16): 2 973–2 991.

    [18] Yan R R, Pang Y, Chen X F, et al . Effect of disturbance on growth of microcystis aeruginosa in different nutrient levels [J]. Environmental Science, 2008, 29 (10): 2 749–2 753 (in Chinese).

    [19] Pannard A, Bormans M, Lagadeuc Y. Short-term variability in physical forcing in temperate reservoirs: effects on phytoplankton dynamics and sedimentary fluxes [J]. Freshwater Biology, 2007, 52 (1): 12–27.

    [20] Li D P, Huang Y. Simulation of sedimentary phosphorus release under sediment disturbance [J]. Chinese Journal of Environmental Engineering, 2010, 4 (5): 993–997 (in Chinese).

    [21] Lake B A, Coolidge K M, Norton S A, et al. Factors contributing to the internal loading of phosphorus from anoxic sediments in six Maine, USA, lakes [J]. Science of the Total Environment, 2007, 373 (2–3): 534–541.

    [22] Wang S R, Jin X C, Zhao H C, et al. Effect of organic matter on the sorption of dissolved organic and inorganic phosphorus in lake sediments [J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2007, 297 (1–3): 154–162.

    [23] Li D P, Huang Y. Transformation of BAPP under sediment disturbance of Meiliang Bay and Moon Bay in Lake Tai during spring and summer [J]. Acta Scientiae Circumstantiae, 2013, 33 (10): 2 766–2 773 (in Chinese).

    [24] Huang Q H, Wang Z J, Wang D H, et al . 夏季梅梁湾水体中生物有效磷的分布及来源 [J]. Science in China Series D: Earth Sciences, 2005, 35 (Z2): 131–137 (in Chinese).

    [25] Li D P , Wang J, Huang Y. Variation of bioavailable phosphorus in Yueliang Bay of Tai Lake under sediment disturbance conditions [J]. Journal of Agro-Environment Science, 2013, 32 (4): 792–797 (in Chinese).

    [26] Shi X D, Li D P , Wang R, et al . Synergistic effect of physical and Chironomus plumosus combined disturbance on regeneration and transformation of internal phosphorus [J]. Environmental Science, 2015, 36 (3): 955–962 (in Chinese).

    [27] Li D P , Huang Y. Effect of disturbance intensity on phosphorus release and its transformation in the sediment from Taihu Lake [J]. Environmental Science, 2012, 33 (8): 2 614–2 620 (in Chinese).

    [28] Boström B, Andersen J M, Fleischer S, et al. Exchange of phosphorus across the sediment-water interface [J]. Hydrobiologia, 1988, 170 (1): 229–244.

    [29] Wang X F, Li D P, Wang M. Regeneration and transformation of BAPP in suspended solids under short term sediment disturbance [J]. Environmental Science, 2014, 35 (1): 171–178 (in Chinese).

    [30] Zhang S H, Chang J J, Sun P S. 水体藻类磷代谢及藻体磷矿化研究进展 [J]. Ecology and Environmental Sciences, 2013, 22 (7): 1 250–1 254 (in Chinese).

This Article

ISSN:0250-3301

CN: 11-1895/X

Vol 36, No. 12, Pages 4509-4515

December 2015

Downloads:0

Share
Article Outline

Abstract

  • 1 Materials and methods
  • 2 Results and discussions
  • 3 Conclusions
  • References