干旱区生态环境知识资源中心(Arid): 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

Arid

DOI	10.1007/s11356-020-07701-y
	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
	Zhang, Zhaoyong 1,2,3; Cao, Ran 1,2,3; Mamat, Zulpiya 1,2,3; Mamat, Anwar 4; Chen, Yinguang 5
通讯作者	Zhang, Zhaoyong
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
EISSN	1614-7499
出版年	2020
卷号	27 期号:13 页码:15057-15067
英文摘要	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 similar to 65.12 mu g (m(2) d)(-1) and - 451.27 similar to 457.06 mu g (m(2) 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.
英文关键词	Sediment Phosphorous and iron in water-sediments interface Synchronous release Gradients in thin films (DGT) Chaiwopu lake Northwest China
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000516241700003
WOS关键词	DISSOLVED REACTIVE PHOSPHORUS ; THIN-FILMS TECHNIQUE ; MIXED BINDING GEL ; DIFFUSIVE GRADIENTS ; IN-SITU ; WATER INTERFACE ; SIMULTANEOUS RELEASE ; PORE-WATER ; PHOSPHATE ; SULFIDE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314464
作者单位	1.Xinjiang Univ, Coll Resource & Environm Sci, Urumqi 830046, Peoples R China; 2.Xinjiang Univ, Xinjiang Common Univ Key Lab Smart City & Environ, Urumqi 830046, Peoples R China; 3.Xinjiang Univ, Key Lab Oasis Ecol, Minist Educ, Urumqi 830046, Peoples R China; 4.Xinjiang Univ, Coll Chem & Chem Engn, Urumqi 830046, Peoples R China; 5.Tongji Univ, Sch Environm Sci & Engn, Sate Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhaoyong,Cao, Ran,Mamat, Zulpiya,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[J]. 新疆大学,2020,27(13):15057-15067.
APA	Zhang, Zhaoyong,Cao, Ran,Mamat, Zulpiya,Mamat, Anwar,&Chen, Yinguang.(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,27(13),15057-15067.
MLA	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 27.13(2020):15057-15067.