Carbonate, organic and clay fractions determine metal bioavailability in periurban calcareous agricultural soils in the Mediterranean area

Santiago-Martín, Ana de; Valverde‐Asenjo, Inmaculada; Quintana, José R.; Vázquez, Antonio; Lafuente, Alfredo Liñán; Huecas, Concepción González

doi:10.1016/j.geoderma.2014.01.009

Cited by 34 publications

(15 citation statements)

References 46 publications

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“…The reduction in Pb availability during the assay was probably related to microbial consumption of the labile organic matter. de Santiago-Martín et al [36] found a positive relationship between labile organic matter and Pb availability in lettuce and a negative relationship with the recalcitrant organic fraction.…”

Section: Discussionmentioning

confidence: 98%

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Bioremediation of multi-polluted soil by spent mushroom (Agaricus bisporus) substrate: Polycyclic aromatic hydrocarbons degradation and Pb availability

García‐Delgado

Yunta

Eymar

2015

Journal of Hazardous Materials

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Section: Discussionmentioning

confidence: 98%

“…3) and RCRA ( Table 2). The lowest Pb availability for all the sampling times (Table 3) in SM was due to the soil characteristics, i.e., high pH and 3% organic matter which is one of the most important factors in the control of Pb mobility [36,37].…”

Section: Discussionmentioning

confidence: 99%

Bioremediation of multi-polluted soil by spent mushroom (Agaricus bisporus) substrate: Polycyclic aromatic hydrocarbons degradation and Pb availability

García‐Delgado

Yunta

Eymar

2015

Journal of Hazardous Materials

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“…Soil Zn is usually more available in the soils with greater organic matter content (Alloway 2009;Iratkar et al 2014). Soil organic matter has a large cation exchange capacity (CEC)/surface negative charge (De Santiago-Martín et al 2014). Moreover, dissolved organic matter has an important influence in Zn distribution in soil (Dehghanian et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Chemical Fractions and Availability of Zn in a Calcareous Soil in Response to Biochar Amendments

Karimi

Moezzi

Chorom

et al. 2019

J Soil Sci Plant Nutr

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Availability of Zinc (Zn) is very low in calcareous soils and hence, an amendment must be used to increase Zn availability to plants. The main objective of this study was to assess the changes in chemical fractions and availability of Zn in a calcareous soil amended with corn residue biochar. Three corn residue biochars were produced at 200 (B200), 350 (B350), and 500°C (B500) and applied at 1 and 2% w/w to a calcareous soil with low organic C content (4.1 g kg −1) and high pH (7.7). The mixtures were incubated for 90 days in the laboratory (25 ± 2°C and 80% of soil field capacity). The application of biochar increased soil total organic carbon (TOC) (1.81-to 3.27-fold), cation exchange capacity (CEC) (1.03-to 1.14-fold) and Zn bound to organic matter (1.34-to 2.15-fold). Relative to untreated soil, the B200 biochar (1) decreased soil pH (0.22-0.30 unit); (2) increased dissolved organic carbon (DOC) (1.34-to 1.59-fold), microbial biomass carbon (MBC) (1.56-to 1.67-fold) and DTPA-extractable Zn (1.32-to 1.42-fold); and (3) maximized Zn content in 3 out of 5 soil pools, i.e., exchangeable Zn; organically bounded Zn; and Fe/ Mn-oxide-bounded Zn. In contrast, the B500 biochar (1) increased soil pH; (2) did not affect DOC or DTPA-extractable Zn quantities in soil extracts; and (3) maximized Zn content in carbonate-Zn and residual-Zn soil fractions. The B350 biochar (1) did not affect soil DOC and DTPA-extractable Zn and (2) slightly increased carbonate-Zn fractions. The effects of biochar addition on soil properties and chemical fractions of Zn were greater at 2% than 1% application rates. Results suggest that corn residue biochar produced at 200°C and applied to calcareous soils at a 2% rate may effectively increase Zn availability by increasing the amount of Zn held in the more labile Zn soil fractions.

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“…This study has shown that even in a carbonated environment, characterized by a low transfer of metals from soil to soil solution; the plants accumulate Cd and Pb in their leaves or fruits . This phenomenon can be explained by active strategies developed by plants for nutrient absorption or to avoid deficiencies (iron, manganese).…”

Section: Resultsmentioning

confidence: 93%

Health Risk Assessment in Calcareous Agricultural Soils Contaminated by Metallic Mining Activity Under Mediterranean Climate

Béjaoui

Kolsi-Benzina

Sappin‐Didier

et al. 2016

CLEAN Soil Air Water

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The agricultural lands surrounding the ancient mine site of Jebel Ressas (Tunisia) have been contaminated mainly due to the mining waste dumps left without environment protection measures. The metal contamination of agricultural soils and crops was studied to evaluate the local population health risk. The results show the soil Cd and Pb contamination over an area of 180 ha and up to 5 km distance from the dumps. The toxic metals contents in soil exceeded the maximum allowable Canadian limits for agricultural soils, reaching 231 and 20 100 mg kg−1 for cadmium (Cd) and lead (Pb), respectively, but decreasing with the distance from the dumps. Although a low solubility and availability of metals could be expected within the calcareous soils of this area, metals appeared to be absorbed by edible plants (fruits and vegetables). High contents in parsley and mallow were recorded, reaching up to four times the allowable limits (EC 1881/2006) for Cd, and 26 times for Pb. Local population exposure to metals by both soil ingestion and consumption of contaminated plants has been estimated and the health risk has been confirmed for farmlands inhabitants, especially for children. The major source of risk for the local population is dietary. Soil dust contribution to health risk is at the most 3.4% for adults and at the most 13.1% for children.

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Carbonate, organic and clay fractions determine metal bioavailability in periurban calcareous agricultural soils in the Mediterranean area

Cited by 34 publications

References 46 publications

Bioremediation of multi-polluted soil by spent mushroom (Agaricus bisporus) substrate: Polycyclic aromatic hydrocarbons degradation and Pb availability

Bioremediation of multi-polluted soil by spent mushroom (Agaricus bisporus) substrate: Polycyclic aromatic hydrocarbons degradation and Pb availability

Chemical Fractions and Availability of Zn in a Calcareous Soil in Response to Biochar Amendments

Health Risk Assessment in Calcareous Agricultural Soils Contaminated by Metallic Mining Activity Under Mediterranean Climate

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