Diagnóstico Geoambiental de Zonas de Manguezal do Estuário do Rio Itanhém, Município de Alcobaça Região Extremo Sul do Estado da Bahia

Preservation of mangroves, a very significant ecosystem from a social, economic, and environmental viewpoint, requires knowledge on soil composition, genesis, morphology, and classification. These aspects are of paramount importance to understand the dynamics of sustainability and preservation of this natural resource. In this study mangrove soils in the Subaé river basin were described and classified and inorganic waste concentrations evaluated.

show abstract

“…Sulfur compounds may contribute to decrease the pH levels in the environment, solubilizing some chemical elements (Araújo, 2000).…”

Section: Pedons Formed Under Fluvial Influencementioning

confidence: 99%

Genesis, Characterization, and Classification of Mangrove Soils in the Subaé River Basin, Bahia, Brazil

Bomfim

Santos

Costa

et al. 2015

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

show abstract

“…Comparações de dados deste estudo com outras áreas de manguezal do Estado da Bahia (Queiroz, 1992;Paredes et al, 1995, Santos 1997, Araújo 2000, mostrados na Tabela 2, permitiram constatar que o Pb apresentou, na região das ilhas da Baía de Camamu, os mais elevados teores relativos. Neste mesmo compartimento, o teor médio de Zn é comparável àquele da região de Santo Amaro, caracterizada por forte influência antropogênica (Queiroz, 1992;Paredes et al, 1995).…”

Section: Resultsunclassified

Comportamento geoquímico de metais em sedimentos de manguezal da Baía de Camamu-Bahia

Oliveira¹,

Cruz²,

Queiroz³

2009

Braz. J. Aquat. Sci. Technol.

View full text Add to dashboard Cite

This inquiry encloses the sediments and mangroves of the Camamu Bay, Bahia, Brazil. 13 stations of sampling had been selected in which sediments, water and leaves were collected. Of these stations, 5 are located in mining zones and 8, in the estuary of the rivers that flow down the bay. The samples had been separate by grain size, mineralogical characteristics, metals (Pb, Zn, Cr, Cu, Cd, Ba, Mn, Fe and Al), organic substances and nutrients. The results of the metals have evidenced differentiated geochemical behaviors for each one of the mangrove zones (compartment of the islands and around the Camamu Bay). The amounts of Pb, Zn and Cu, had been raised in the islands compartment, while Mn, Cr, Al and Fe, presented higher concentration around the Bay. In relation to the dynamics of metal partition in the zones of mining of the interior islands, it was observed a preoccupying increase of Pb, Zn, Mn and Ba.

show abstract

“…The Crgn horizon observed in P4, which indicates the presence of carbonate material (shells), showed a Ca concentration of 7.8 cmolc kg −1 (Table 4), but one of the lowest pH H 2 O levels (3.6%) (Table 3), something which may be attributed to the sulfur concentration (3.7%). Sulfur compounds may contribute to decrease the pH levels in the environment, solubilizing some chemical elements [74].…”

Section: Pedons Formed Under Riverine Influencementioning

confidence: 99%

Morphology, Physical and Chemical Characteristics of Mangrove Soil under Riverine and Marine Influence: A Case Study on Subaé River Basin, Bahia, Brazil

Bomfim¹,

Santos²,

Costa³

et al. 2018

Mangrove Ecosystem Ecology and Function

View full text Add to dashboard Cite

The preservation of mangrove ecosystem requires knowledge on soil Morphology, Physical and Chemical Characteristics, for understanding the requirements for their sustainability and preservation. Seven pedons of mangrove soil, five under fluvial and two under marine influence, located in the Subaé River basin were described and classified.Samples of horizons were collected for physical and chemical analyses, including Pb and Cd. The moist soils were suboxidic, with Eh below 350 mV. The pH of the pedons under fluvial influence ranged from moderately acid to alkaline, and pedons under marine influence was around 7.0. Mangrove soils under fluvial influence were characterized with the highest Pb and Cd concentrations in the pedons, which could be perhaps due to it closeness to the mining company Plumbum, while the lowest Pb concentrations was registered in the pedon furthest from the factory. Because the pedons had at least one metal above the reference level they were considered potentially toxic. The soils were classified as Gleissolos Tiomórficos Órticos (sálicos) sódico neofluvissólico, according to the Brazilian Soil Classification System and as Thiomorphic orthic Gleysol (salic) sodicluvissol (potentially toxic, very poorly drained) according with FAO. The pedon under marine influence was classified in the same subgroup, but the metal concentrations met the acceptable standard.

show abstract

Diagnóstico Geoambiental de Zonas de Manguezal do Estuário do Rio Itanhém, Município de Alcobaça Região Extremo Sul do Estado da Bahia

Cited by 4 publications

References 0 publications

Genesis, Characterization, and Classification of Mangrove Soils in the Subaé River Basin, Bahia, Brazil

Genesis, Characterization, and Classification of Mangrove Soils in the Subaé River Basin, Bahia, Brazil

Comportamento geoquímico de metais em sedimentos de manguezal da Baía de Camamu-Bahia

Morphology, Physical and Chemical Characteristics of Mangrove Soil under Riverine and Marine Influence: A Case Study on Subaé River Basin, Bahia, Brazil

Contact Info

Product

Resources

About