Extreme rainstorm reshuffles the spatial distribution of heavy metals and pollution risk in sediments along the mangrove tidal flat

Zhang，Licong1; Guo，Yuehua2; Xiao，Kai1; Pan，Feng3; Li，Hailong1; Li，Zhenyang1; Xu，Hualin4

2023-09-01

10.1016/j.marpolbul.2023.115277

Marine Pollution Bulletin   影响因子和分区

0025-326X

1879-3363

Mangroves as typical blue carbon ecosystems exhibit a high level of heavy metal accumulation capability. In this study, we investigated how extreme rainstorm effects the spatial variability and pollution risk of sediment heavy metals (i.e., Fe, Mn, Cr, Cu, Zn, Cd, Pb, As and Hg) at different compartments of a typical tidal flat, including the bare mudflat, mangrove zone, and tidal creek in Shenzhen Bay, China. The results showed that the extreme rainstorm can change the sediment particle size, which further regulated the spatial distribution, and source-sink pattern of heavy metals. Due to the strong rainstorm flushing, the concentrations of most heavy metals increased toward the sea and the comprehensive pollution level increased by 8.3 % after the extreme rainstorm. This study contributes to better understanding of how extreme rainstorm regulates heavy metal behavior in mangrove sediments to achieve sustainable development of mangroves under the pressures of extreme weather events.

Extreme rainstorm Heavy metals Mangrove ecosystem Pollution assessment Shenzhen Bay

SCI ; EI

英语

第一 ; 通讯

Basic and Applied Basic Research Foundation of Guangdong Province[2022A1515010572];National Natural Science Foundation of China[42177046];

Environmental Sciences & Ecology ; Marine & Freshwater Biology

Environmental Sciences ; Marine & Freshwater Biology

WOS:001048929600001

PERGAMON-ELSEVIER SCIENCE LTD

20233014430844

Bioaccumulation ; Ecosystems ; Particle size ; Risk assessment ; Sediments ; Spatial distribution ; Storms ; Tides ; Wetlands

Surveying:405.3 ; Precipitation:443.3 ; Ecology and Ecosystems:454.3 ; Biology:461.9 ; Seawater, Tides and Waves:471.4 ; Soil Mechanics and Foundations:483 ; Metallurgy and Metallography:531 ; Engineering Graphics:902.1 ; Accidents and Accident Prevention:914.1 ; Mathematics:921

ENVIRONMENT/ECOLOGY

2-s2.0-85165267108

Scopus

1.State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.CCCC-FHEC Ecological Engineering Co. Ltd.,Shenzhen,518107,China
3.College of the Environment & Ecology,Xiamen University Xiamen 361102,China
4.Guangdong Neilingding Futian National Nature Reserve,Shenzhen,518048,China

Zhang，Licong,Guo，Yuehua,Xiao，Kai,et al. Extreme rainstorm reshuffles the spatial distribution of heavy metals and pollution risk in sediments along the mangrove tidal flat[J]. Marine Pollution Bulletin,2023,194.

Zhang，Licong.,Guo，Yuehua.,Xiao，Kai.,Pan，Feng.,Li，Hailong.,...&Xu，Hualin.(2023).Extreme rainstorm reshuffles the spatial distribution of heavy metals and pollution risk in sediments along the mangrove tidal flat.Marine Pollution Bulletin,194.

Zhang，Licong,et al."Extreme rainstorm reshuffles the spatial distribution of heavy metals and pollution risk in sediments along the mangrove tidal flat".Marine Pollution Bulletin 194(2023).