DOI: 10.1016/j.watres.2018.10.043
Scopus记录号: 2-s2.0-85055201760
论文题名: Sequestration of heavy metal by glomalin-related soil protein: Implication for water quality improvement in mangrove wetlands
作者: Wang Q. ; Mei D. ; Chen J. ; Lin Y. ; Liu J. ; Lu H. ; Yan C.
刊名: Water Research
ISSN: 431354
出版年: 2019
卷: 148 起始页码: 142
结束页码: 152
语种: 英语
英文关键词: Coastal water quality
; Environmental assessment
; Metal binding
; Sediment
; Suspended solids
Scopus关键词: Aquatic ecosystems
; Biochemistry
; Heavy metals
; Principal component analysis
; Proteins
; Sediments
; Soils
; Suspended sediments
; Water quality
; Wetlands
; Coastal water quality
; Ecological functions
; Environmental assessment
; Glomalin-related soil protein
; Heavy metals in soil
; Metal binding
; Suspended solids
; Water quality improvements
; Chemicals removal (water treatment)
; arsenic
; cadmium
; chromium
; copper
; heavy metal
; iron
; lead
; manganese
; nickel
; zinc
; aquatic ecosystem
; bioavailability
; chemical binding
; coastal water
; coastal zone management
; concentration (composition)
; environmental assessment
; heavy metal
; mangrove
; pollutant removal
; protein
; sediment pollution
; suspended sediment
; water quality
; wetland
; aquatic environment
; Article
; Avicennia marina
; biogeochemical cycle
; carbon sequestration
; concentration (parameters)
; controlled study
; mangrove
; nonhuman
; sediment
; soil
; suspended particulate matter
; water contamination
; water quality
; wetland
英文摘要: Glomalin-related soil protein (GRSP) is a widespread glycoprotein found to have strong ability of sequestering heavy metals in soils. However, the underlying mechanism for metal and metalloid removal as well as water quality improvement and the ecological role played by GRSP are still not well documented. This study was initiated to investigate the interconnection of metal loading in GRSP between sediments and suspended solids, focusing on the mobilization mechanisms of GRSP in the coastal mangrove wetland. Combined indicators of nine heavy metals were significantly positively correlated with GRSP concentration by Principal Component Analysis, indicating that GRSP could act as an indicator of contamination level in the mangrove wetlands. Large distribution of GRSP in sediments and suspended solids elevated sequestration potential of heavy metals (Fe, Mn, Cr, Cu, Zn, Ni, Cd, Pb) and metalloid arsenic in the mangrove aquatic ecosystem. GRSP mobilized and sequestered heavy metals in sediment profiles, which reduced the bioavailability of heavy metals. GRSP was also a significant contributor for suspended solids to adsorb heavy metals, enhancing suspended solids deposition and burial process in sediments. This new finding provided insights into the ecological functions of GRSP and the heavy metal cycling in wetland environments. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122219
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen, 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361102, China
Recommended Citation:
Wang Q.,Mei D.,Chen J.,et al. Sequestration of heavy metal by glomalin-related soil protein: Implication for water quality improvement in mangrove wetlands[J]. Water Research,2019-01-01,148