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Lateral and longitudinal variation in phosphorus fractions in surface sediment and adjacent riparian soil in the Three Gorges Reservoir, China.
Environ Sci Pollut Res Int. 2018 Nov; 25(31):31262-31271.ES

Abstract

Hydrological regimes have been significantly altered since the Three Gorges Dam (TGD) raised the water level of the reservoir to the maximum design level of 175 m in October 2010. This change might greatly influence the forms of phosphorus (P) in the sediment and the adjacent riparian soil. The purpose of this study was to reveal the lateral (sediment, water-level-fluctuation zone soil, and upland soil) and longitudinal (from the end of backwater area to the TGD) trends in P factions. Samples from 11 sites located along the main stem and ten sites located along eight tributaries were collected in June 2017. The P fractions were determined using the Standards, Measurements, and Testing (SMT) protocol. The results showed that the order of increase for average pH values was sediment (7.58 ± 0.62), WLFZ soil (7.44 ± 0.29), and adjacent upland soil (7.20 ± 0.68). The total organic carbon in the sediment was also highest with an average of 9.15 ± 2.97 mg·g-1. The average concentrated HCl-extractable P (total P), organic P (OP), inorganic P (IP), HCl-extractable P (HCl-P), and NaOH-extractable P (NaOH-P) were 630.02 ± 212.24, 161.89 ± 90.77, 468.13 ± 194.92, 335.65 ± 159.88, and 51.40 ± 36.20 mg·kg-1, respectively. The concentration of both total P and NaOH-P in the sediment of the main stem exhibited an increasing trend from the backwater area to the TGD. The average concentration of P species in the sediment was higher than those in the upland soil and the water-level-fluctuation zone (WLFZ) soil. For all the sediment and soil samples, the rank order of P species concentrations was HCl-P > OP > NaOH-P. Both IP and HCl-P were highly positively correlated with total P in the upland soil, the WLFZ soil and the sediment. However, only in the sediment, NaOH-P was positively correlated with total P and OP. All P species in the upland soil demonstrated greater spatial heterogeneity than those in the WLFZ soil and the sediment. Redundancy analysis revealed that the main variables explaining the variance in P species concentrations were Al in the upland soil and pH in the sediment.

Authors+Show Affiliations

College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China. zhangzy@mail.ihe.ac.cn. Key Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan, 430079, China. zhangzy@mail.ihe.ac.cn.College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.Key Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan, 430079, China.Key Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan, 430079, China.College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.Key Laboratory of Ecological Impacts of Hydraulic-Projects and Restoration of Aquatic Ecosystem of Ministry of Water Resources, Institute of Hydroecology, Ministry of Water Resources and Chinese Academy of Sciences, Wuhan, 430079, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30194572

Citation

Zhang, Zhiyong, et al. "Lateral and Longitudinal Variation in Phosphorus Fractions in Surface Sediment and Adjacent Riparian Soil in the Three Gorges Reservoir, China." Environmental Science and Pollution Research International, vol. 25, no. 31, 2018, pp. 31262-31271.
Zhang Z, Hu H, Wan C, et al. Lateral and longitudinal variation in phosphorus fractions in surface sediment and adjacent riparian soil in the Three Gorges Reservoir, China. Environ Sci Pollut Res Int. 2018;25(31):31262-31271.
Zhang, Z., Hu, H., Wan, C., Peng, J., Xu, F., & Shi, F. (2018). Lateral and longitudinal variation in phosphorus fractions in surface sediment and adjacent riparian soil in the Three Gorges Reservoir, China. Environmental Science and Pollution Research International, 25(31), 31262-31271. https://doi.org/10.1007/s11356-018-3087-7
Zhang Z, et al. Lateral and Longitudinal Variation in Phosphorus Fractions in Surface Sediment and Adjacent Riparian Soil in the Three Gorges Reservoir, China. Environ Sci Pollut Res Int. 2018;25(31):31262-31271. PubMed PMID: 30194572.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Lateral and longitudinal variation in phosphorus fractions in surface sediment and adjacent riparian soil in the Three Gorges Reservoir, China. AU - Zhang,Zhiyong, AU - Hu,Hongqing, AU - Wan,Chengyan, AU - Peng,Jianhua, AU - Xu,Fengli, AU - Shi,Fang, Y1 - 2018/09/07/ PY - 2018/05/15/received PY - 2018/08/27/accepted PY - 2018/9/9/pubmed PY - 2019/1/10/medline PY - 2018/9/9/entrez KW - Heterogeneity KW - Phosphorus fraction KW - Riparian KW - Sediment KW - Three Gorges Reservoir KW - Water-level-fluctuation zone SP - 31262 EP - 31271 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 25 IS - 31 N2 - Hydrological regimes have been significantly altered since the Three Gorges Dam (TGD) raised the water level of the reservoir to the maximum design level of 175 m in October 2010. This change might greatly influence the forms of phosphorus (P) in the sediment and the adjacent riparian soil. The purpose of this study was to reveal the lateral (sediment, water-level-fluctuation zone soil, and upland soil) and longitudinal (from the end of backwater area to the TGD) trends in P factions. Samples from 11 sites located along the main stem and ten sites located along eight tributaries were collected in June 2017. The P fractions were determined using the Standards, Measurements, and Testing (SMT) protocol. The results showed that the order of increase for average pH values was sediment (7.58 ± 0.62), WLFZ soil (7.44 ± 0.29), and adjacent upland soil (7.20 ± 0.68). The total organic carbon in the sediment was also highest with an average of 9.15 ± 2.97 mg·g-1. The average concentrated HCl-extractable P (total P), organic P (OP), inorganic P (IP), HCl-extractable P (HCl-P), and NaOH-extractable P (NaOH-P) were 630.02 ± 212.24, 161.89 ± 90.77, 468.13 ± 194.92, 335.65 ± 159.88, and 51.40 ± 36.20 mg·kg-1, respectively. The concentration of both total P and NaOH-P in the sediment of the main stem exhibited an increasing trend from the backwater area to the TGD. The average concentration of P species in the sediment was higher than those in the upland soil and the water-level-fluctuation zone (WLFZ) soil. For all the sediment and soil samples, the rank order of P species concentrations was HCl-P > OP > NaOH-P. Both IP and HCl-P were highly positively correlated with total P in the upland soil, the WLFZ soil and the sediment. However, only in the sediment, NaOH-P was positively correlated with total P and OP. All P species in the upland soil demonstrated greater spatial heterogeneity than those in the WLFZ soil and the sediment. Redundancy analysis revealed that the main variables explaining the variance in P species concentrations were Al in the upland soil and pH in the sediment. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/30194572/Lateral_and_longitudinal_variation_in_phosphorus_fractions_in_surface_sediment_and_adjacent_riparian_soil_in_the_Three_Gorges_Reservoir_China_ L2 - https://dx.doi.org/10.1007/s11356-018-3087-7 DB - PRIME DP - Unbound Medicine ER -