tailieunhanh - Presence of trace elements in sediment of Can Gio mangrove forest, Ho Chi Minh city, Vietnam

The CGM has been gradually facing to numeric challenges of global climate change, environmental degradation and socio-economic development for the last decades. To evaluate sediment quality in the CGM, we collected 13 cores to analyze for sediment grain size, organic matter content, and trace element concentration of Cd, Cr, Cu, Ni, Pb, Zn. Results showed that trace element concentrations ranged from uncontaminated (Cd, Cu, and Zn) to very minor contaminated (Cr, Ni, and Pb). The concentrations were gradually influenced by suspended particle size and the mangrove plants. | Vietnam Journal of Earth Sciences 41 1 21-35 Doi 0866-7187 41 1 13543 VAST Vietnam Academy of Science and Technology Vietnam Journal of Earth Sciences http WWW. vj s. ac. vn index. php j s e Presence of trace elements in sediments of Can Gio mangrove forest Ho Chi Minh city Vietnam Tran Trong Hung 1 2 3 Dang Thuong Huyen1 Tran Anh Tu1 Marc Desmet3 faculty of Geology and Petroleum Engineering Ho Chi Minh City University ofTechnology-VNUHCM 2Can Gio Mangroves Forest Management Board . GéHCO 6293 University of TOURS 60 Rue du Plat d Etain 37000 Tours France Received 14 August 2018 Received in revised form 9 October 2018 Accepted 9 November 2018 ABSTRACT Can Gio mangrove forest CGM is located in the South-East of Ho Chi Minh City HCMC situated between an estuarine system of Dong Nai-Sai Gon river and a part of Vam Co river. The CGM is the largest restored mangrove forest in Vietnam and the UNESCO s Mangrove Biosphere Reserve. The CGM has been gradually facing to numeric challenges of global climate change environmental degradation and socio-economic development for the last decades. To evaluate sediment quality in the CGM we collected 13 cores to analyze for sediment grain size organic matter content and trace element concentration of Cd Cr Cu Ni Pb Zn. Results showed that trace element concentrations ranged from uncontaminated Cd Cu and Zn to very minor contaminated Cr Ni and Pb . The concentrations were gradually influenced by suspended particle size and the mangrove plants. Keywords Can Gio mangrove biosphere reserve sediment quality mangrove sediment trace elements heavy metals. 2019 Vietnam Academy of Science and Technology 1. Introduction Mangrove forests are a spectacular ecosystem occupying the boundary between land and sea and globally distribution of 181 077 km2 in area and centered in the tropics Spalding Blasco Field 2010 Thomas et al. 2017 . In most areas mangroves forests are important filters of pollutants from atmospheric deposition .

• Địa Lý
• Vietnam journal of earth sciences
• Presence of trace elements in sediment
• Can Gio mangrove forest
• Ho Chi Minh city
• Can Gio mangrove biosphere reserve
• The mangrove plants
• General characteristics of rare earth
• Radioactive elements in Dong Pao deposit
• The natural tap and thermal waters
• Liquid scintillation counter
• Probabilistic seismic hazard assessment for the South Central Vietnam
• Probabilistic seismic hazard assessment
• The South Central Vietnam
• Recent seismotectonic and geodynamic
• Prediction of maximum earthquake magnitude for northern Vietnam region
• The gev distribution
• Maximum earthquake magnitude
• Generalized extreme value distribution
• The earthquake catalog of Northern Vietnam
• Continuous GPS network in Vietnam
• The total electron
• The South East Asian region
• The continuous GPS network
• The South East Asian equatorial ionization anomaly
• Upper Permian lower Triassic volcanic sequences
• The Hoa Binh area
• northwest Vietnam
• Insignificant cumulative displacement
• Oriented core samples
• An analysis of forest biomass changes
• Geospatial tools and ground survey data
• Yok Don national park
• Central Highlands of Vietnam
• SPOT HRV satellite
• The autumn precipitation
• Tropical cyclone activity
• Central Vietnam and its East Sea
• Sea surface temperature
• Adaptation plans anticipated
• Construction of initial national quasi geoid model VIGAC2017
• First step to national spatial reference system in Vietnam
• Coordinate transformation parameters
• The WGS 84 ellipsoid
• Abnormal features of oceanographic characteristics
• Upwelling Vietnam waters under impact of El Niño events
• Deeper water layers during
• El Niño phase
• The relation between fault movement potential
• Seismic activity of major faults in Northwestern Vietnam
• Fault Movement Potential
• The nearly horizontal trend
• U Pb detrital zircon geochronology
• Sedimentary rocks in NE Vietnam
• Implication for Early and Middle Devoni an Palaeogeography
• LA SF ICP MS techniques
• The western Himalaya
• Preliminary study on phytogeography
• Dipterocarpaceae Blume family in Vietnam
• Dipterocarpaceae Blume family
• Tropical and or slightly passing
• The Mekong River deltas
• Impacts of climate change on erosion and water flow
• The soil and water assessment tool and gis
• Cau river basin in Vietnam
• oil and Water Assessment Tool
• Errors in determination of main parameters of earthquake hypocenter
• The national seismic network of Vietnam
• Main parameters of earthquake hypocenter
• The seismic stations
• The previous studies
• Sea level rise and resilience in Vietnam
• Sea level rise and resilience in the AsiaPacific
• Sea level rise and resilience
• Climate change induced sea level rise
• Spatial distribution of hot days in north central region
• Vietnam in the period of 1980 2013
• Hot days in north central region
• North Center Region
• Debris flow hazard in relation
• Geological environment changes in mountainous regions
• Geological environment changes
• Debris flows in Vietnam
• High arsenic concentration in groundwater related to sedimentary facies
• The Mekong River Delta
• High arsenic concentration
• AOAC laboratory Vietnamese standard
• Assessment of geomorphic processes and active tectonics
• Con Voi mountain range area
• The hypsometric curve analysis method
• The hypsometric curve
• Uptake capacity of metals by Vetiveria zizanioides
• Uptake capacity of metals
• Dong Xam metal production trade village
• Thai Binh province
• Metal production trade village
• Coralline Ba Ca ratios
• Luminescent line records
• Con Dao island
• Mekong river runoff
• Bright luminescent lines
• Simulation of long term variations
• The F2 layercritical frequency f0F2
• The northern tropical crest of ionization at Phu Thuy
• The thermosphere ionosphere electrodynamicsgeneral circulation model
• Long term variations
• Methodology of determining effective porosity
• Longitudinal dispersivity of aquifer
• The application to field tracer injection test in Southern Hanoi
• The groundwater flow
• New discovery of late early ordovician graptolites
• Discussion on stratigraphic sequence of paleozoic sediments
• The Dinh Ca Trang Xa section
• Vo Nhai disctrict
• A digital shoreline analysis system
• Mangrove shoreline changes along
• The Giao Thuy coastal area
• Mangrove shoreline changes and mangrove zoning