| Other output |
- Portela, Ester; Abreu, Maria Manuela. 2019. Potassium fixation in Portuguese soils. In Portugal, since the 1930s, the results
of experimentation on potassium fertilization have frequently caused perplexity among researchers. In such cases, where clear
responses to K were expected due to low K concentrations in the soils, they did not occur or were very slow in manifesting
themselves, particularly in the south of the country. In this review paper a retrospective of the existing ex. https://revistas.rcaap.pt/index.php/rca/article/view/16714.
- Fernandes, Eliana; Abreu, Maria Manuela; Santos, Erika; Magalhães, Maria Clara; Fernandes,Eliana; Abreu,Mª Manuela; Santos,Erika;
Magalhães,Mª Clara. 2018. Comportamento de Cistus Ladanifer L. e Cistus Monspeliensis L. face aos elementos vestigiais em
solos na área mineira do Chança. Comparou-se a acumulação e translocação de elementos vestigiais em duas espécies de plantas
espontâneas na área mineira do Chança, Cistus ladanifer L. e Cistus monspeliensis L., e caracterizaram-se
os solos da área da rizosfera. Os solos apresentaram diferenças no conteúdo em arsénio, cobre, crómio, manganês, vanádio e
zinco e alguns elementos atingiram valores totais (mg kg-1). https://revistas.rcaap.pt/index.php/rca/article/view/15950.
- Abreu, Maria Manuela; Santos, Erika; Fernandes, Eliana; Batista, Maria João; Ferreira, Mara; Abreu,Mª Manuela; Santos,Erika;
et al. 2018. Acumulação e translocação de elementos vestigiais em Cistus Ladanifer L. de áreas mineiras da FPI portuguesa.
Avaliou-se a capacidade de acumulação e translocação de As, Cu, Pb e Zn em populações de Cistus ladanifer L. que
colonizam as áreas mineiras de Brancanes, São Domingos, Chança e Caveira (FPI-Portuguesa) e duas áreas controlo (Caldeirão,
Pomarão). Os solos de São Domingos e Caveira apresentaram elevadas concentrações totais de As, Cu e Pb. As áreas mineiras
de Brancanes e Chança podem ser. https://revistas.rcaap.pt/index.php/rca/article/view/15949.
- Santos, Erika; Ferreira, Mara; Abreu, Maria Manuela; Santos,Erika; Ferreira,Mara; Abreu,Mª Manuela. 2018. Contribuição de
Cistus Ladanifer L. e Cistus Salviifolius L. na recuperação de áreas mineiras da faixa piritosa ibérica. Este estudo teve
como objectivo avaliar o potencial de utilização conjunta de Cistus ladanifer e Cistus salviifolius na
recuperação ambiental de áreas mineiras abandonadas da Faixa Piritosa Ibérica. Os solos de São Domingos são muito heterogéneos,
devido aos materiais que lhes deram origem, apresentando concentrações totais (mg kg-1) elevadas de As (1940-3030), Cu (210-237)
e P. https://revistas.rcaap.pt/index.php/rca/article/view/15947.
- Neves, O.; Abreu, M. M.; Matias, M. J.. 2018. Uranium distribution in the solid phases of soils from Cunha Baixa mining site
(Portugal). The present study concerns the application of partial chemical extraction, in a parallel procedure, to evaluate
the uranium distribution in different solid phases constituents of the soils in the vicinity of Cunha Baixa mining area in
order to assess its environmental risk. In the surface horizon of the soils, uranium that reached total concentrations between
9.8 to 362 mg/kg was preferential boun. https://revistas.rcaap.pt/index.php/rca/article/view/15660.
- Santos, E. S.; Abreu, M. M.; Ferreira, M. B.; Magalhães, M. C.F.. 2018. Availability of Cu, Pb and Zn in Canal Caveira and
São Domingos mine areas from Iberian Pyrite Belt. Several mining areas are abandoned in the Iberian Pyrite Belt (IPB) leading
to important points of environmental contamination. The potential and immediate environmental risk and impact on public health
of hazardous elements from soil can be estimated from availability analysis. The aim of this study was to evaluate the availability
of Cu, Pb and Zn in São Domingos and Canal Caveira mining area. https://revistas.rcaap.pt/index.php/rca/article/view/15847.
- Abreu, M. M.; Santos, E. S.; Magalhães, M. C.F.; Nabais, C.. 2018. Arsenic containing phases in soils from São Domingos mining
area and in non-contaminated soils from Pomarão and Serra do Caldeirão. São Domingos mining area is located in the Iberian
Pyrite Belt, in south-east Portugal. Intensive gossan gold, copper and silver mining was done in roman times. More
recently, mining activities were concentrated in the copper, zinc, arsenic and lead rich sulfide orebodies. To evaluate arsenic
hazard, soils developed on the gossan mine waste piles were analysed, using as referen. https://revistas.rcaap.pt/index.php/rca/article/view/15656.
- Godinho, B.; Abreu, M. M.; Magalhães, M. C.; Abreu, M.M.; Magalhães, M.C.F.; Godinho,B.; Abreu,M.M.; Magalhães,M.C.. 2018.
Avaliação biogeoquímica dos solos e do medronheiro na área mineira da Panasqueira. As Minas da Panasqueira são uma das mais
importantes minas em laboração em Portugal. Ao longo de 100 anos de exploração de tungsténio, cobre e estanho produziram-se
resíduos que foram amontoados à superfície, em escombreiras, provocando impactos ambientais elevados. Este trabalho teve como
objectivo o estudo biogeoquímico da envolvente das Minas da Panasqueira através da avaliação de solos e pl. https://revistas.rcaap.pt/index.php/rca/article/view/15819.
- Tavares, M. T.; Abreu, M. M.; Vairinho, M. M.; Sousa, A. J.; Quental, L.. 2018. Geochemical behavior of trace elements in
the surroundings of Mina de S. Domingos, Alentejo: Tapada and Telheiro sites. Even thought the mining activity in S Domingos
finished more than forty years ago, the mining site is still a source of polluting trace elements for soils and sediments
downstream the open pit. The present work aims to evaluate the contamination of these soils and sediments. Therefore two sampling
areas were selected: one, assumed as non-contaminated (Tapada), is used to access the reference value. https://revistas.rcaap.pt/index.php/rca/article/view/15659.
- Neves, O.; Abreu, M. M.; Neves,O.; Abreu,M.M.. 2018. Concentração de urânio em plantas desenvolvidas em solos agrícolas e
de escombreira da área mineira da Cunha Baixa (Mangualde). Neste trabalho avalia-se e comparara-se a concentração e capacidade
de bioconcentração (CB) do urânio em diversas espécies vegetais (parte aérea) que se desenvolveram em solos de escombreira
(Pinus pinaster, Cytisus striatus, Cytisus multiflorus) e cultivadas (Zea mays L., Phaseolus vulgaris L., Lactuca
sativa L.) em solos da zona agrícola, envolvente à área mineira da Cunha Bai. https://revistas.rcaap.pt/index.php/rca/article/view/15818.
- Madeira, A. C.; Esteves, C.; Abreu, M. M.; Varennes, A. de; Magalhães, M. C.F.; Madeira, A.C.; Abreu, M.M.; et al. 2018. Comparação
de correctivos aplicados a um solo de uma área mineira contaminado com arsénio e seu efeito no crescimento de plantas. Estudou-se
o efeito de correctivos (óxido de ferro, Fe; matéria orgânica, MO; fosfato de cálcio, PCa), aplicados a um solo da área mineira
de Penedono contaminado com As, no crescimento de tomateiro e salsa. Usaram-se, como controlos, este solo sem correctivos
e um solo não contaminado. Durante o crescimento mediu-se a altura das plantas, comprimento foliar e teor relativo de clorofila.
Na colheit. https://revistas.rcaap.pt/index.php/rca/article/view/15760.
- Abreu, M. M.; Santos, E. S.; Anjos, C.; Magalhães, M. C.F.; Nabais, C.. 2018. Lead uptake capacity of Cistus plants growing
in mining areas. Mining activity can give rise to large quantities of chemically unstable waste rocks and tailings which can
drain potential environmentally harmful lixiviates rich in chemical elements. Plants growing in such environments can minimize
chemical, physical and visual negative impacts. To evaluate lead absorption by native Cistus growing in Braçal (NW
Portugal) and São Domingos (SE Portugal). https://revistas.rcaap.pt/index.php/rca/article/view/15657.
- Nunes, Jorge Delgado; Alexandre, Carlos; Abreu, María Manuela. 2018. Efeito de minerais de ferro e manganês no arsénio solúvel
em incubações laboratoriais: resultados preliminares. O controlo da acumulação de As no grão constitui um desafio para o arroz
produzido em solos alagados. Testou-se o efeito de minerais de Fe e Mn, sintetizados e naturais, na concentração do As na
solução do solo com recurso a incubações laboratoriais. Analisou-se o As, o Fe e o Mn totais na solução de incubação, após
centrifugação e filtragem, ao fim de 4 h, 7, 15 e 30 dias. Usaram-se tubos de cent. http://www.cics2018.com/libro-de-abstracts/.
- Portela, Ester; Abreu, Maria Manuela; Portela,Ester; Abreu,Maria Manuela. 2018. Fixação do potássio nos solos portugueses.
Em Portugal, desde os anos 30 do século XX, os resultados da experimentação relativa à adubação potássica têm amiúde causado
perplexidade entre os investigadores. Nos casos em que se esperariam respostas evidentes ao K, devido às suas baixas concentrações
no solo, elas ou não se verificaram, ou tardaram a surgir, sobretudo no Sul do país. Neste trabalho de revisão, faz-se uma
retrospectiva da expe. http://hdl.handle.net/10348/8707.
http://dx.doi.org/10.19084/RCA18100
- Santos, E.S.; Abreu, M.M.; Magalhães, M.C.F.; Santos, E. S.; Abreu, M. M.; Magalhaes, M. C. F.. 2016. Cistus ladanifer phytostabilizing
soils contaminated with non-essential chemical elements. Cistus ladanifer L. is one of the spontaneous species from Iberian
Pyrite Belt (IPB) considered promising for phytostabilisation of mining areas. Although the plant–soil relationships of some
potentially hazardous elements (e.g. As, Pb, Cu and Zn) are known, for other elements also potentially hazardous and non-essential
this information is scarce. However, in soils with multielemental contaminati. http://hdl.handle.net/10773/18208.
10.1016/j.ecoleng.2016.05.072
- Peres, Sara; Magalhaes, M. Clara F.; Abreu, Maria Manuela; Leitao, Sara; Santos, Ana; Cerejeira, Maria Jose. 2016. Interaction
of contaminated sediment from a salt marsh with estuarine water: evaluation by leaching and ecotoxicity assays and salts from
leachate evaporation. Purpose Wastes from a former Portuguese steel plant were deposited between 1961 and 2001 on the riverbank
of a tributary of the Tagus River creating a landfill connected to the river, posing a potential contamination risk to the
Tagus estuary ecosystem. This study aims to assess the transfer of chemical elements from contaminated sediments to the estuarine
water from cycles of sediment leaching so. http://hdl.handle.net/10773/19904.
10.1007/s11368-016-1355-z
- Amaral, Helena I. F.; Gama, Ana Cláudia; Gonçalves, Cláudia; Fernandes, Judite; Batista, Maria João; Abreu, Manuela. 2016.
Long-term TNT and DNT contamination: 1-D modeling of natural attenuation in the vadose zone: case study, Portugal. The vadose
zone of a trinitrotoluene (TNT) and dinitrotoluene (DNT) contaminated site was investigated to assess the mobility of those
explosives under natural conditions. Located in the left margin of the River Tejo Basin, Portugal, the site is located on
unconsolidated sediments. Wastewaters associated with the 50-year explosives production were disposed in excavated ponds,
from where water woul. http://hdl.handle.net/10400.1/9771.
10.1007/s12665-015-4937-y
- Portela, Ester; Vale, Rui; Abreu, Maria Manuela; Portela,Ester; Vale,Rui; Abreu,Maria Manuela. 2015. Carências de boro no
interior - norte e centro - de Portugal. In Portugal, boron deficiency has been observed almost everywhere, in particular
in the interior of the country, causing severe crop damage. In the 1950’s, the growth anomalies in the Douro vineyards were
recognised as a boron deficiency (called ´maromba’). From the 1980’s onwards systematic studies have been carried out in the
northern and central interior of Portugal with the purpose of identify. http://hdl.handle.net/10400.5/11855.
- Abreu, Maria Manuela; Fangueiro, David; Santos, Erika S.. 2015. Ano Internacional dos Solos 2015: Oportunidade para promover
uma administração integrada dos solos em Portugal?. Resumo: Neste trabalho assinala-se o retrocesso da administração do recurso
solo em Portugal ao longo dos últimos 40 anos, em contraponto com a evolução recente a nível europeu (Estratégia Temática
para a Protecção do Solo) e a nível global (Parceria Global para o Solo, Dia Mundial do Solo e Ano Internacional dos Solos
2015, AIS-2015). Aproveitando o impulso internacional neste domínio apresenta-s. http://hdl.handle.net/10174/17115.
- Santos, Erika S.; Abreu, Maria Manuela; Batista, Maria Joao; Magalhes, M. Clara F.; Fernandes, Eliana. 2014. Inter-population
variation on the accumulation and translocation of potentially harmful chemical elements in Cistus ladanifer L. from Brancanes,
Caveira, Chan double dagger a, Lousal, Neves Corvo and So Domingos mines in the Portuguese Iberian Pyrite Belt. This study
aimed to compare the variation on the accumulation and translocation of potentially harmful chemical elements and nutrients
(As, Ca, Cu, Fe, K, Mg, Mn, Ni, Pb and Zn) in Cistus ladanifer L. belonging to populations growing in different mine areas
from the Portuguese Iberian Pyrite Belt (Brancanes, Caveira, Chan double dagger a, Lousal, Neves Corvo, So Domingos). These
mines are abandone. http://hdl.handle.net/10773/19387.
10.1007/s11368-014-0852-1
- Abreu, Maria Manuela; Godinho, Berta; Magalhaes, M. Clara F.. 2014. Risk assessment of Arbutus unedo L. fruits from plants
growing on contaminated soils in the Panasqueira mine area, Portugal. In the Panasqueira mine area, Arbutus unedo L. (arbutus
tree) grows on soils developed on waste materials and on soils impacted by mining activity. The arbutus berry brandy is considered
a product with economic value. The aims of this study were to evaluate the biogeochemical impact of the mining activity on
soils and arbutus trees, to assess the possible risks associated with human consumption of. http://hdl.handle.net/10773/19562.
10.1007/s11368-013-0835-7
- Santos, Erika S.; Magalhaes, Maria Clara F.; Abreu, Maria Manuela; Macias, Felipe; Magalhães, Maria Clara F.; Macías, Felipe.
2014. Effects of organic/inorganic amendments on trace elements dispersion by leachates from sulfide-containing tailings of
the Sao Domingos mine, Portugal. Time evaluation. Greenhouse pot experiments were conducted over 13 months to evaluate the
effect of two amendment mixture doses (30 and 75 Mg/ha) on the geochemical dispersion of trace elements by leaching hazardous
mine wastes from the Sao Domingos mine. Mineralogical evolution of these materials was also evaluated. Amendment mixtures
containing solid wastes from agriculture (plant remains + strawberry substrate. http://hdl.handle.net/10773/20478.
10.1016/j.geoderma.2014.02.004
- Abreu, Maria Manuela; Godinho, Berta; Magalhaes, M. Clara F.. 2014. Risk assessment of Arbutus unedo L. fruits from plants
growing on contaminated soils in the Panasqueira mine area, Portugal. In the Panasqueira mine area, Arbutus unedo L. (arbutus
tree) grows on soils developed on waste materials and on soils impacted by mining activity. The arbutus berry brandy is considered
a product with economic value. The aims of this study were to evaluate the biogeochemical impact of the mining activity on
soils and arbutus trees, to assess the possible risks associated with human consumption of. http://hdl.handle.net/10773/19562.
10.1007/s11368-013-0835-7
- Abreu, M. M.; Lopes, J.; Santos, E. S.; Magalhaes, M. C. F.. 2014. Ecotoxicity evaluation of an amended soil contaminated
with uranium and radium using sensitive plants. As a result of former uranium mining at Urgeirica (central-northern Portugal),
the studied adjacent agriculture soils (Fluvisols) had high total concentration of uranium (similar to 660 mg/kg) and high
radium-226 activity (similar to 2310 Bq/kg). The environmental risk of these soils is also related to the high available concentrations
(soluble + exchangeable fraction extracted with ammonium aceta. http://hdl.handle.net/10773/19542.
10.1016/j.gexplo.2014.01.029
- Abreu, Maria Manuela; Godinho, Berta; Magalhaes, M. Clara F.. 2014. Risk assessment of Arbutus unedo L. fruits from plants
growing on contaminated soils in the Panasqueira mine area, Portugal. In the Panasqueira mine area, Arbutus unedo L. (arbutus
tree) grows on soils developed on waste materials and on soils impacted by mining activity. The arbutus berry brandy is considered
a product with economic value. The aims of this study were to evaluate the biogeochemical impact of the mining activity on
soils and arbutus trees, to assess the possible risks associated with human consumption of. http://hdl.handle.net/10773/19562.
10.1007/s11368-013-0835-7
- Jaume Bech; Maria Manuela Abreu; Hyo-Taek Chon; Núria Roca. 2014. Remediation of Potentially Toxic Elements in Contaminated
Soils. http://dx.doi.org/10.1007/978-94-017-8965-3_7.
10.1007/978-94-017-8965-3_7
- Quental, Lídia Maria; Sousa, António Jorge de; Marsh, Stuart; Abreu, Maria Manuela. 2013. Identification of materials related
to acid mine drainage using multi-source spectra at S. Domingos Mine, SE Portugal. http://hdl.handle.net/10400.9/2095.
- Martinho, E.; Abreu, Maria Manuela; Oliveira, A.; Alegria, F.; Pampulha, M.E.. 2013. Monitoring of biophysicochemical changes
in a silty clay soil contaminated with LNAPLs. The interdependence between time domain induced polarization measurements at
uncontaminated and artificially contaminated soil samples with diesel and biophysicochemical alterations caused by diesel
degradation was investigated during 12 months. The research was performed on a slightly alkaline soil, with high content of
organic matter (148 g/kg) and silty clay texture. Soil clay mineralogy was ma. http://hdl.handle.net/10400.5/9080.
10.1016/j.geoderma.2013.01.003
- Martinho, E.; Abreu, Maria Manuela; Oliveira, A.; Alegria, F.; Pampulha, M.E.. 2013. Monitoring of biophysicochemical changes
in a silty clay soil contaminated with LNAPLs. The interdependence between time domain induced polarization measurements at
uncontaminated and artificially contaminated soil samples with diesel and biophysicochemical alterations caused by diesel
degradation was investigated during 12 months. The research was performed on a slightly alkaline soil, with high content of
organic matter (148 g/kg) and silty clay texture. Soil clay mineralogy was ma. http://hdl.handle.net/10400.5/9080.
10.1016/j.geoderma.2013.01.003
- Quental, Lídia Maria; Sousa, António Jorge de; Marsh, Stuart; Abreu, Maria Manuela. 2013. Identification of materials related
to acid mine drainage using multi-source spectra at S. Domingos Mine, SE Portugal. http://hdl.handle.net/10400.9/2095.
- Batista, M.J.; Oliveira, D.P.S.; Abreu, Maria Manuela; Locutura, J.; Shepherd, T.; Matos, J.; Bel-Lan, A.; Martins, L.. 2013.
Sources, background and enrichment of lead and other elements: Lower Guadiana River. The lower sector of the Guadiana River
Basin, located in southern Portugal and Spain, hosts soils and plants with elevated Pb, Cu and As near former and current
mining sites. Two geogenic and two anthropogenic sources of Pb were identified where elevated concentrations are mostly related
to the occurrence of sulphide-rich ore deposits, Volcanic Sedimentary formations and mining. These were general. http://hdl.handle.net/10400.5/9079.
10.1016/j.geoderma.2012.08.033
- Quental, Lídia Maria; Sousa, A. J.; Marsh, Stuart; Brito, G.; Abreu, Maria Manuela. 2011. Imaging spectroscopy answers to
acid mine drainage detection at S. Domingos, Iberian Pyrite Belt, Portugal. http://hdl.handle.net/10400.9/1444.
- Quental, Lídia Maria; Sousa, A. J.; Marsh, Stuart; Brito, G.; Abreu, Maria Manuela. 2011. Imaging spectroscopy answers to
acid mine drainage detection at S. Domingos, Iberian Pyrite Belt, Portugal. http://hdl.handle.net/10400.9/1444.
- Santos,Erika; Abreu,M* Manuela; Saraiva,Jorge; Nabais,Cristina; Santos, Erika; Abreu, Maria Manuela; Saraiva, Jorge; Nabais,
Cristina. 2011. Actividades enzimáticas antioxidativas em Cistus Ladanifer L. provenientes de áreas não contaminadas em elementos
vestigiais. Avaliou-se a actividade das enzimas antioxidativas (catalase, peroxidase e superóxido dismutase) e as concentrações
em As, Cu, Pb e Zn nas folhas de duas populações de Cistus ladanifer L. colhidas, na Primavera e no Verão, em solos não contaminados
em elementos vestigiais (Caldeirão e Pomarão) e com condições climáticas diferentes. Nos solos das duas áreas, as concentrações
totais e disponíveis (e. http://www.scielo.mec.pt/scielo.php?script=sci_arttext&pid=S0871-018X2011000200004.
- Santos,E.S.; Abreu,M.M.; Ferreira,M. B.; Magalhães,M.C.F.. 2010. Disponibilidade de Cu, Pb e Zn nas áreas mineiras de Canal
Caveira e São Domingos - Faixa Piritosa Ibérica. Avaliou-se a disponibilidade do Cu, Pb e Zn nos solos das áreas mineiras
de São Domingos e Canal Caveira (Faixa Piritosa Ibérica) com o objectivo de determinar a potencialidade de dispersão daqueles
elementos no meio. Em ambas as áreas as concentrações totais dos elementos foram elevadas e a disponibilidade variou consoante
as parcelas e, consequentemente, com as características dos solos. A fra. http://www.scielo.mec.pt/scielo.php?script=sci_arttext&pid=S0871-018X2010000100038.
- Santos, E.S.; Abreu, M.M.; Ferreira, M.B.; Magalhães, M.C.F.. 2010. Disponibilidade de Cu, Pb e Zn nas áreas mineiras de Canal
Caveira e São Domingos - faixa piritosa Ibérica. Several mining areas are abandoned in the Iberian pyrite belt (IPB) leading
to important points of environmental contamination. The potential and immediate environmental risk and impact on public health
of hazardous elements from soil can be estimated from availability analysis. The aim of this study was to evaluate the availability
of Cu, Pb and Zn in São Domingos and Canal Caveira mining areas l. http://hdl.handle.net/10400.5/2710.
- Abreu, Maria Manuela; Neves, O.; Matias, M.J.. 2009. Distribuição do urânio nas várias fases-suporte em solos da área mineira
da Cunha Baixa (Portugal). The present study concerns the application of partial chemical extraction, in a parallel procedure,
to evaluate the uranium distribution in different solid phases constituents of the soils in the vicinity of Cunha Baixa mining
area in order to assess its environmental risk. In the surface horizon of the soils, uranium that reached total concentrations
between 9.8 to 362 mg/kg was preferential boun. http://hdl.handle.net/10400.5/1454.
- Abreu, Maria Manuela; Neves, O.. 2009. Are uranium-contaminated soil and irrigation water a risk for human vegetable consumers?
A study case with Solanum tuberosum L., Phaseolus vulgaris L. and Lactuca sativa L.. The knowledge of uranium concentration,
in the products entering the human diet is of extreme importance because of their chemical hazard to health. Controlled field
experiments with potatoes, beans and lettuce (Solanum tuberosum L., Phaseolus vulgaris L. and Lactuca sativa L.) were carried
out in a contaminated soil used by local farmers located near a closed Portuguese uranium mine (Cunha Baixa,. http://hdl.handle.net/10400.5/1590.
- Abreu, Maria Manuela; Santos, Erika S.; Nabais, Cristina; Saraiva, Jorge A.. 2009. Trace elements and activity of antioxidative
enzymes in Cistus ladanifer L. growing on an abandoned mine area. Abstract The Mediterranean shrub Cistus ladanifer grows
naturally in Sa˜o Domingos (Portugal), an abandoned copper mine. High levels of trace elements in plants can generate oxidative
stress increasing the activity of antioxidant enzymes. The aim of this work was to evaluate and compare As, Cu, Pb and Zn
concentrations and the activity of the soluble and cell wall ionically bounded forms of the en. http://hdl.handle.net/10400.5/1589.
- Abreu, Maria Manuela; Neves, O.. 2009. Are uranium-contaminated soil and irrigation water a risk for human vegetable consumers?
A study case with Solanum tuberosum L., Phaseolus vulgaris L. and Lactuca sativa L.. The knowledge of uranium concentration,
in the products entering the human diet is of extreme importance because of their chemical hazard to health. Controlled field
experiments with potatoes, beans and lettuce (Solanum tuberosum L., Phaseolus vulgaris L. and Lactuca sativa L.) were carried
out in a contaminated soil used by local farmers located near a closed Portuguese uranium mine (Cunha Baixa,. http://hdl.handle.net/10400.5/1590.
- Abreu, Maria Manuela; Santos, E.C.; Magalhães, M.C.F.; Nabais, C.. 2009. Fases portadoras do arsénio em solos da área mineira
de São Domingos e em solos não contaminados do Pomarão e Serra do Caldeirão. São Domingos mining area is located in the Iberian
Pyrite Belt, in south-east Portugal. Intensive gossan gold, copper and silver mining was done in roman times. More recently,
mining activities were concentrated in the copper, zinc, arsenic and lead rich sulfide orebodies. To evaluate arsenic hazard,
soils developed on the gossan mine waste piles were analysed, using as reference non- contaminated. http://hdl.handle.net/10400.5/1451.
- Santos, Erika S.; Abreu, Maria Manuela; Nabais, Cristina; Saraiva, Jorge A.. 2009. Trace elements and activity of antioxidative
enzymes in Cistus ladanifer L. growing on an abandoned mine area. The Mediterranean shrub Cistus ladanifer grows naturally
in São Domingos (Portugal), an abandoned copper mine. High levels of trace elements in plants can generate oxidative stress
increasing the activity of antioxidant enzymes. The aim of this work was to evaluate and compare As, Cu, Pb and Zn concentrations
and the activity of the soluble and cell wall ionically bounded forms of the enzymes cata. http://hdl.handle.net/10773/6998.
10.1007/s10646-009-0329-y
- Abreu, Maria Manuela; Neves, O.; Matias, M.J.. 2009. Distribuição do urânio nas várias fases-suporte em solos da área mineira
da Cunha Baixa (Portugal). The present study concerns the application of partial chemical extraction, in a parallel procedure,
to evaluate the uranium distribution in different solid phases constituents of the soils in the vicinity of Cunha Baixa mining
area in order to assess its environmental risk. In the surface horizon of the soils, uranium that reached total concentrations
between 9.8 to 362 mg/kg was preferential boun. http://hdl.handle.net/10400.5/1454.
- Abreu, Maria Manuela; Santos, E.S.; Anjos, C.; Magalhães, M.C.F.; Nabais, C.. 2009. Capacidade de absorção do chumbo por plantas
do género Cistus espontâneas em ambientes mineiros. Mining activity can give rise to large quantities of chemically unstable
waste rocks and tailings which can drain potential environmentally harmful lixiviates rich in chemical elements. Plants growing
in such environments can minimize chemical, physical and visual negative impacts. To evaluate lead absorption by native Cistus
growing in Braçal (NW Portugal) and São Domingos (SE Portugal) mining ar. http://hdl.handle.net/10400.5/1452.
- Tavares,M.T; Abreu,M. M; Vairinho,M.M.; Sousa,A.J.; Quental,L.; Tavares, M. T.; Abreu, Maria Manuela; et al. 2009. Comportamento
geoquímico de alguns elementos vestigiais na envolvente das Minas de S. Domingos, Alentejo: áreas da Tapada e do Telheiro.
A actividade mineira em S. Domingos cessou há mais de quarenta anos, porém, ainda hoje, o antigo parque mineiro é fonte de
dispersão de elementos vestigiais potencialmente contaminantes que se acumulam nos sedimentos e nos solos a juzante da zona
de exploração. O presente trabalho teve como objectivo a avaliação da contaminação dos solos e sedimentos na área de confluência
das ribeiras de S. Domin. http://www.scielo.mec.pt/scielo.php?script=sci_arttext&pid=S0871-018X2009000100017.
- Matias, M.J.; Marques, J.M.; Figueiredo, P.; Basto, M.J.; Abreu, M.M.; Carreira, P.M.; Ribeiro, C.; et al. 2009. Assessment
of pollution risk ascribed to Santa Margarida Military Camp activities (Portugal). Santa Margarida Military Camp (S.M.M.C.)
is the only one Portuguese military training area, including firing ranges for tactical military manoeuvres of mechanised
divisions. For this reason, various negative effects on the environment were expected due to the military activities, as the
Military Camp’s area is classified as a high vulnerability area to pollution of its multilayer porous aquifers.. http://hdl.handle.net/10400.5/8096.
10.1007/s00254-008-1222-3
- Neves, O.; Abreu, M.M.. 2009. Are uranium-contaminated soil and irrigation water a risk for human vegetables consumers ? A
study case with Solanum tuberosum L., Phaseolus vulgaris L. and Lactuca sativa L.. The knowledge of uranium concentration,
in the products entering the human diet is of extreme importance because of their chemical hazard to health. Controlled field
experiments with potatoes, beans and lettuce (Solanum tuberosum L., Phaseolus vulgaris L. and Lactuca sativa L.) were carried
out in a contaminated soil used by local farmers located near a closed Portuguese uranium mine (Cunha Baixa,. http://hdl.handle.net/10400.5/8092.
10.1007/s10646-009-0376-4
- Abreu,M.M.; Santos,E.S.; Anjos,C.; Magalhães,M.C.F.; Nabais,C.. 2009. Capacidade de absorção do chumbo por plantas do género
Cistus espontâneas em ambientes mineiros. A actividade mineira pode gerar grandes quantidades de materiais provenientes da
mineralização mais ou menos alterada, fragmentada ou britada, das rochas encaixantes e de escórias que constituem escombreiras,
muitas vezes quimicamente instáveis, e que podem fornecer elevados teores de elementos químicos potencialmente contaminantes
para os ecossistemas. As plantas que se desenvolvem nestes ambient. http://www.scielo.mec.pt/scielo.php?script=sci_arttext&pid=S0871-018X2009000100016.
- Abreu, Maria Manuela; Neves, O.; Matias, M.J.. 2009. Distribuição do urânio nas várias fases-suporte em solos da área mineira
da Cunha Baixa (Portugal). The present study concerns the application of partial chemical extraction, in a parallel procedure,
to evaluate the uranium distribution in different solid phases constituents of the soils in the vicinity of Cunha Baixa mining
area in order to assess its environmental risk. In the surface horizon of the soils, uranium that reached total concentrations
between 9.8 to 362 mg/kg was preferential boun. http://hdl.handle.net/10400.5/1454.
- Neves,O.; Abreu,M.M.; Matias,M.J.. 2009. Distribuição do urânio nas várias fases-suporte em solos da área mineira da Cunha
Baixa (Portugal). A extracção de elementos radioactivos, como o urânio, a partir das suas mineralizações leva à dispersão
de contaminantes químicos e radiológicos para a água superficial/subterrânea e para o solo das áreas envolventes. Para avaliar
a distribuição do urânio por diferentes fases orgânicas e inorgânicas, em solos da área mineira de Cunha Baixa submeteram-se
várias amostras a extracção química parcial,. http://www.scielo.mec.pt/scielo.php?script=sci_arttext&pid=S0871-018X2009000100018.
- Batista, Maria João; Abreu, Maria Manuela; Pinto, M. Serrano; Batista, M. J.; Abreu, M. M.; Batista, M.J.; Batista,M. J.;
Abreu,M. M.; Pinto,M. Serrano. 2009. Distribuição de estanho em solos e em estevas da área envolvente das minas de Neves Corvo.
A área mineira de Neves Corvo inclui a Mina de Neves Corvo (MNC) cuja exploração teve início em 1988 para Cu e Sn e outras
seis minas de Mn e Cu já abandonadas. Na região ocorrem formações geológicas do Complexo Vulcano-Sedimentar (CVS) hospedeiras
dos sulfuretos maciços portadores das mineralizações e formações do grupo do Flysch compostas de xistos e grauvaques. Neste
trabalho, estudou-se a dist. http://hdl.handle.net/10400.9/682.
- Abreu,M.M.; Santos,E.S.; Magalhães,M.C.F.; Nabais,C.. 2009. Fases portadoras do arsénio em solos da área mineira de São Domingos
e em solos não contaminados do Pomarão e Serra do Caldeirão. A mina de São Domingos situa-se a SE de Portugal na Faixa Piritosa
Ibérica. No tempo dos romanos foi feita a exploração intensiva de ouro, cobre e prata a partir do gossan e, nos tempos modernos
fez-se também a exploração dos sulfuretos maciços de cobre com teores elevados de arsénio, zinco e chumbo. Para avaliar a
perigosidade que representa o arsénio para o meio determinou-se a sua distribuição. http://www.scielo.mec.pt/scielo.php?script=sci_arttext&pid=S0871-018X2009000100015.
- Abreu, Maria Manuela; Santos, E.S.; Anjos, C.; Magalhães, M.C.F.; Nabais, C.. 2009. Capacidade de absorção do chumbo por plantas
do género Cistus espontâneas em ambientes mineiros. Mining activity can give rise to large quantities of chemically unstable
waste rocks and tailings which can drain potential environmentally harmful lixiviates rich in chemical elements. Plants growing
in such environments can minimize chemical, physical and visual negative impacts. To evaluate lead absorption by native Cistus
growing in Braçal (NW Portugal) and São Domingos (SE Portugal) mining ar. http://hdl.handle.net/10400.5/1452.
- Abreu, Maria Manuela; Santos, Erika S.; Nabais, Cristina; Saraiva, Jorge A.. 2009. Trace elements and activity of antioxidative
enzymes in Cistus ladanifer L. growing on an abandoned mine area. Abstract The Mediterranean shrub Cistus ladanifer grows
naturally in Sa˜o Domingos (Portugal), an abandoned copper mine. High levels of trace elements in plants can generate oxidative
stress increasing the activity of antioxidant enzymes. The aim of this work was to evaluate and compare As, Cu, Pb and Zn
concentrations and the activity of the soluble and cell wall ionically bounded forms of the en. http://hdl.handle.net/10400.5/1589.
- Santos, Erika S.; Abreu, Maria Manuela; Nabais, Cristina; Saraiva, Jorge A.. 2009. Trace elements and activity of antioxidative
enzymes in Cistus ladanifer L. growing on an abandoned mine area. The Mediterranean shrub Cistus ladanifer grows naturally
in São Domingos (Portugal), an abandoned copper mine. High levels of trace elements in plants can generate oxidative stress
increasing the activity of antioxidant enzymes. The aim of this work was to evaluate and compare As, Cu, Pb and Zn concentrations
and the activity of the soluble and cell wall ionically bounded forms of the enzymes cata. http://hdl.handle.net/10773/6998.
10.1007/s10646-009-0329-y
- Abreu, Maria Manuela; Neves, O.. 2009. Are uranium-contaminated soil and irrigation water a risk for human vegetable consumers?
A study case with Solanum tuberosum L., Phaseolus vulgaris L. and Lactuca sativa L.. The knowledge of uranium concentration,
in the products entering the human diet is of extreme importance because of their chemical hazard to health. Controlled field
experiments with potatoes, beans and lettuce (Solanum tuberosum L., Phaseolus vulgaris L. and Lactuca sativa L.) were carried
out in a contaminated soil used by local farmers located near a closed Portuguese uranium mine (Cunha Baixa,. http://hdl.handle.net/10400.5/1590.
- Abreu, Maria Manuela; Santos, E.C.; Magalhães, M.C.F.; Nabais, C.. 2009. Fases portadoras do arsénio em solos da área mineira
de São Domingos e em solos não contaminados do Pomarão e Serra do Caldeirão. São Domingos mining area is located in the Iberian
Pyrite Belt, in south-east Portugal. Intensive gossan gold, copper and silver mining was done in roman times. More recently,
mining activities were concentrated in the copper, zinc, arsenic and lead rich sulfide orebodies. To evaluate arsenic hazard,
soils developed on the gossan mine waste piles were analysed, using as reference non- contaminated. http://hdl.handle.net/10400.5/1451.
- Abreu, Maria Manuela; Neves, O.; Matias, M.J.. 2009. Distribuição do urânio nas várias fases-suporte em solos da área mineira
da Cunha Baixa (Portugal). The present study concerns the application of partial chemical extraction, in a parallel procedure,
to evaluate the uranium distribution in different solid phases constituents of the soils in the vicinity of Cunha Baixa mining
area in order to assess its environmental risk. In the surface horizon of the soils, uranium that reached total concentrations
between 9.8 to 362 mg/kg was preferential boun. http://hdl.handle.net/10400.5/1454.
- Abreu, Maria Manuela. 2008. O subsistema geologia-geomorfologia na delimitação da estrutura ecológica e no ordenamento do
território. http://hdl.handle.net/10400.5/8899.
- Abreu, M.M.; Matias, M.J.; Magalhães, M.Clara F.; Basto, M.J.. 2008. Impacts on water, soil and plants from the abandoned
Miguel Vacas copper mine, Portugal. Soil, water and plant geochemistry was studied around the Miguel Vacas copper mine (Alentejo,
SE Portugal), which stopped its exploitation and processing activities in 1991. After closure waste-rock piles remained exposed
to weathering. The copper ore was mainly composed of copper phosphates and carbonates. Remediation actions were insufficient
to prevent the spreading of waste-rock materials to s. http://hdl.handle.net/10400.5/5627.
10.1016/j.gexplo.2007.04.012
- Abreu, Maria Manuela. 2008. O subsistema geologia-geomorfologia na delimitação da estrutura ecológica e no ordenamento do
território. http://hdl.handle.net/10400.5/8899.
- Abreu,M.M.; Matias,M.J.; Magalhães,M.C.F.; Basto,M.J.; Abreu, M. M.; Matias, M. J.; Magalhães, M. C.F.; Bast, M. J.. 2007.
Potencialidades do Pinus pinaster e Cytisus multiflorus na fitoestabilização de escombreiras na mina de ouro de Santo António
(Penedono). A mina de Santo António, localizada a cerca de 10 km ao norte de Penedono (Viseu), foi um importante centro mineiro,
tendo-se aí principalmente explorado o ouro e outros elementos químicos, como o arsénio. Actualmente, todo o complexo mineiro
está abandonado e bastante degradado. As escombreiras, cortadas por dois barrancos de grande dimensão, estão sujeitas a intensa
erosão eólica e hídrica. Esta. http://www.scielo.mec.pt/scielo.php?script=sci_arttext&pid=S0871-018X2007000200025.
- Abreu, Maria Manuela; Joaquim, Catarina; Fernandes, Maria Leonor. 2003. Fraccionamento do crómio no horizonte Ap de um lixissolo
férrico e de um luvissolo estágnico após enriquecimento em Cr (III). http://hdl.handle.net/10400.5/2280.
- Abreu, Maria Manuela; Joaquim, Catarina; Fernandes, Maria Leonor. 2003. Fraccionamento do crómio no horizonte Ap de um lixissolo
férrico e de um luvissolo estágnico após enriquecimento em Cr (III). http://hdl.handle.net/10400.5/2280.
- Abreu, Maria Manuela; Tavares, Maria Teresa; Quental, Lidia Maria; Vairinho, Maria Margarida. 2003. Influência do chumbo e
do zinco na absorção de potássio, fósforo, magnésio, cálcio e sódio pela oliveira. The aim of this study is to investigate
whether the contents of Pb and Zn present on soils naturally enriched in these metals, affect the absorption of Ca, K, Mg,
Na and P by the olive tree.. http://hdl.handle.net/10400.5/2279.
- Tavares, M.T.; Abreu, M.M.; Quental, L.M.; Vairinho, M.M.. 2003. Influência do chumbo e do zinco na absorção de potássio,
fósforo, magnésio, cálcio e sódio pela oliveira. http://hdl.handle.net/10400.5/16096.
- Joaquim, C.; Abreu, M.M.; Fernandes, M.L.. 2003. Fraccionamento do crómio no horizonte Ap de um lixissolo férreo e de um luvissolo
estágnico após enriquecimento em Cr (III). http://hdl.handle.net/10400.5/16097.
- Abreu, Maria Manuela; Joaquim, Catarina; Fernandes, Maria Leonor. 2003. Fraccionamento do crómio no horizonte Ap de um lixissolo
férrico e de um luvissolo estágnico após enriquecimento em Cr (III). http://hdl.handle.net/10400.5/2280.
- Abreu, Maria Manuela; Tavares, Maria Teresa; Quental, Lidia Maria; Vairinho, Maria Margarida. 2003. Influência do chumbo e
do zinco na absorção de potássio, fósforo, magnésio, cálcio e sódio pela oliveira. The aim of this study is to investigate
whether the contents of Pb and Zn present on soils naturally enriched in these metals, affect the absorption of Ca, K, Mg,
Na and P by the olive tree.. http://hdl.handle.net/10400.5/2279.
- Abreu, M.M.; Ribeiro, L.; Arsénio, P.; Bulcão, L.. 2002. Dinâmincas geomorfológicas como metodologia básica na avaliação da
sensibilidade da paisagem. Aplicação ao Ilhéu de Vila Franca do Campo, S.Miguel, Açores. The Islet of Vila Franca do Campo,
(S. Miguel Island, Azores) with 6,2 ha, is located 500 m from the south coast. The geology, ecology, and cultural character,
makes it a place with high landscape quality, very attractive for recreation, originating a highly sensitive landscape to
recreation impacts. Landscape sensitivity assessment becomes therefore a crucial step in the development of a landscap. http://hdl.handle.net/10400.5/5413.
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