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A study of synchronous measurement of liable phosphorous and iron based on ZrO-Chelex (DGT) in the sediment of the Chaiwopu Lake, Xinjiang, Northwest China.
Environ Sci Pollut Res Int. 2020 May; 27(13):15057-15067.ES

Abstract

The water-sediment interface of lakes is an important and unique area of the water environment; the geochemical behavior of nutrients in this area has a significant impact on the quality of the water environment and ecosystems, especially in shallow lakes. However, most studies do not provide direct in situ evidence for this in shallow lakes in arid regions; in order to explore the coupling relationship between phosphorus (P) and iron (Fe) in a sediment profile, we conducted a high-resolution analysis of liable Fe and P in sediments taken from the Chaiwopu Lake using ZrO-Chelex thin film diffusion gradient technology (ZrO-Chelex DGT). The results show that (1) the vertical spatial distribution trend of the liable P and Fe in the sediments from each sampling site is essentially similar. The contents of the liable P and Fe ranged from 0.004-0.125 mg/L and 0.050-0.190 mg/L, respectively, and the synchronous distribution of the micro-interface concentration reflects the coupling relationship between them. (2) The correlation analysis of the liable P and Fe concentrations showed that there were significant linear correlations between them (P < 0.05, bilateral). (3) The diffusion fluxes of P and Fe were - 51.76~65.12 μg (m2 d)-1 and - 451.27~457.06 μg (m2 d)-1, respectively, and were shown to be negative at the sediment-water interface for most of the samples, which showed that P and Fe were released from the overlying water into the sediments. (4) This research showed that the diffusive fluxes at the different sites are quite different, which indicates that the phosphorus and iron pollution in the sediments of the Chaiwopu Lake is affected by exogenous inputs. There was no significant correlation between P release flux and pH, ORP, conductivity (EC), the TDS of the overlying water, or the pH, salinity (Ca2+, Mg2+), and nutrient (organic matter) content of the sediment. The release flux of Fe is affected by the pH of the sediment. The results of this study provide references for the research of elements in the water-sediment interface of shallow lakes in arid regions, as well as other areas.

Authors+Show Affiliations

College of Resource and Environmental Sciences, Xinjiang University, Urumqi, 830046, People's Republic of China. baiyangdian313@163.com. Xinjiang Common University Key Laboratory of Smart City and Environmental Stimulation, Xinjiang University, Urumqi, 830046, People's Republic of China. baiyangdian313@163.com. Key Laboratory of Oasis Ecology, Ministry of Education, Xinjiang University, Urumqi, 830046, People's Republic of China. baiyangdian313@163.com.College of Resource and Environmental Sciences, Xinjiang University, Urumqi, 830046, People's Republic of China. Xinjiang Common University Key Laboratory of Smart City and Environmental Stimulation, Xinjiang University, Urumqi, 830046, People's Republic of China. Key Laboratory of Oasis Ecology, Ministry of Education, Xinjiang University, Urumqi, 830046, People's Republic of China.College of Resource and Environmental Sciences, Xinjiang University, Urumqi, 830046, People's Republic of China. Xinjiang Common University Key Laboratory of Smart City and Environmental Stimulation, Xinjiang University, Urumqi, 830046, People's Republic of China. Key Laboratory of Oasis Ecology, Ministry of Education, Xinjiang University, Urumqi, 830046, People's Republic of China.College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi, 830046, People's Republic of China.Sate Key Laboratory of Pollution Control and Resource Reuse, School of Environment Science and Engineering, Tongji University, Shanghai, 200092, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32065365

Citation

Zhang, Zhaoyong, et al. "A Study of Synchronous Measurement of Liable Phosphorous and Iron Based On ZrO-Chelex (DGT) in the Sediment of the Chaiwopu Lake, Xinjiang, Northwest China." Environmental Science and Pollution Research International, vol. 27, no. 13, 2020, pp. 15057-15067.
Zhang Z, Cao R, Mamat Z, et al. A study of synchronous measurement of liable phosphorous and iron based on ZrO-Chelex (DGT) in the sediment of the Chaiwopu Lake, Xinjiang, Northwest China. Environ Sci Pollut Res Int. 2020;27(13):15057-15067.
Zhang, Z., Cao, R., Mamat, Z., Mamat, A., & Chen, Y. (2020). A study of synchronous measurement of liable phosphorous and iron based on ZrO-Chelex (DGT) in the sediment of the Chaiwopu Lake, Xinjiang, Northwest China. Environmental Science and Pollution Research International, 27(13), 15057-15067. https://doi.org/10.1007/s11356-020-07701-y
Zhang Z, et al. A Study of Synchronous Measurement of Liable Phosphorous and Iron Based On ZrO-Chelex (DGT) in the Sediment of the Chaiwopu Lake, Xinjiang, Northwest China. Environ Sci Pollut Res Int. 2020;27(13):15057-15067. PubMed PMID: 32065365.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A study of synchronous measurement of liable phosphorous and iron based on ZrO-Chelex (DGT) in the sediment of the Chaiwopu Lake, Xinjiang, Northwest China. AU - Zhang,Zhaoyong, AU - Cao,Ran, AU - Mamat,Zulpiya, AU - Mamat,Anwar, AU - Chen,Yinguang, Y1 - 2020/02/17/ PY - 2019/10/10/received PY - 2020/01/09/accepted PY - 2020/2/18/pubmed PY - 2020/7/11/medline PY - 2020/2/18/entrez KW - Chaiwopu lake KW - Gradients in thin films (DGT) KW - Northwest China KW - Phosphorous and iron in water-sediments interface KW - Sediment KW - Synchronous release SP - 15057 EP - 15067 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 27 IS - 13 N2 - The water-sediment interface of lakes is an important and unique area of the water environment; the geochemical behavior of nutrients in this area has a significant impact on the quality of the water environment and ecosystems, especially in shallow lakes. However, most studies do not provide direct in situ evidence for this in shallow lakes in arid regions; in order to explore the coupling relationship between phosphorus (P) and iron (Fe) in a sediment profile, we conducted a high-resolution analysis of liable Fe and P in sediments taken from the Chaiwopu Lake using ZrO-Chelex thin film diffusion gradient technology (ZrO-Chelex DGT). The results show that (1) the vertical spatial distribution trend of the liable P and Fe in the sediments from each sampling site is essentially similar. The contents of the liable P and Fe ranged from 0.004-0.125 mg/L and 0.050-0.190 mg/L, respectively, and the synchronous distribution of the micro-interface concentration reflects the coupling relationship between them. (2) The correlation analysis of the liable P and Fe concentrations showed that there were significant linear correlations between them (P < 0.05, bilateral). (3) The diffusion fluxes of P and Fe were - 51.76~65.12 μg (m2 d)-1 and - 451.27~457.06 μg (m2 d)-1, respectively, and were shown to be negative at the sediment-water interface for most of the samples, which showed that P and Fe were released from the overlying water into the sediments. (4) This research showed that the diffusive fluxes at the different sites are quite different, which indicates that the phosphorus and iron pollution in the sediments of the Chaiwopu Lake is affected by exogenous inputs. There was no significant correlation between P release flux and pH, ORP, conductivity (EC), the TDS of the overlying water, or the pH, salinity (Ca2+, Mg2+), and nutrient (organic matter) content of the sediment. The release flux of Fe is affected by the pH of the sediment. The results of this study provide references for the research of elements in the water-sediment interface of shallow lakes in arid regions, as well as other areas. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/32065365/A_study_of_synchronous_measurement_of_liable_phosphorous_and_iron_based_on_ZrO_Chelex__DGT__in_the_sediment_of_the_Chaiwopu_Lake_Xinjiang_Northwest_China_ L2 - https://dx.doi.org/10.1007/s11356-020-07701-y DB - PRIME DP - Unbound Medicine ER -