Effects of heavy metals from past applications of sewage sludge on microbial biomass and organic matter accumulation in a sandy loam and silty loam U.K. soil

Chander, Krishan; Brookes, Philip C.

doi:10.1016/0038-0717(91)90172-g

Cited by 224 publications

(111 citation statements)

References 17 publications

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“…Dick (1994) observou que solos submetidos a sistemas de cultivo não apresentaram alteração mensurável no conteúdo de carbono total apesar do efeito significativo verificado na atividade da β-glucosidase. Chander & Brookes (1991) afirmaram que a biomassa microbiana, atividade enzimática e a respiração do solo respondem mais rapidamente a alterações ambientais do que a matéria orgânica no solo. Segundo Garcia et al (1994), o baixo teor de matéria orgânica é a principal causa da pouca atividade microbiana em solos de regiões semi-áridas.…”

Section: Resultsunclassified

Atividade microbiana em solo do semi-árido sob cultivo de Atriplex nummularia

Pereira

Martínez

Porto

et al. 2004

Pesq. agropec. bras.

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Resumo -Métodos para avaliar a atividade microbiana no solo são fundamentais no monitoramento ambiental de áreas degradadas. O objetivo deste trabalho foi investigar a atividade microbiana de solo do semi-árido cultivado com Atriplex nummularia Lindl. em áreas que receberam rejeito salino durante um e três anos, em comparação com um solo nativo, sem cultivo e não irrigada. O solo cultivado por três anos e que recebeu rejeito salino apresentou, no período seco, valores de pH, CE e atividade de hidrólise do diacetato de fluoresceína (FDA) superiores aos das demais áreas. No entanto, foi observada correlação negativa entre o carbono microbiano e os valores do quociente metabólico (qCO 2 ). A biomassa microbiana e a fosfatase alcalina também foram superiores no solo cultivado por três anos e que recebeu rejeito salino em relação ao solo nativo sem irrigação, confirmando o desempenho de plantas halófitas na melhoria da qualidade do solo sob condições de estresse salino. O cultivo de A. nummularia constitui uma das alternativas para utilização de rejeito salino proveniente da dessalinização por osmose reversa.Termos para indexação: emissão de CO 2 , biomassa microbiana, diacetato de fluoresceína, fosfatase alcalina. Microbial activity in a semiarid soil cultivated with Atriplex nummulariaAbstract -Methods used to estimate the soil microbial activity are important to environmental monitoring of degraded areas. The objective of this research was to investigate the microbial activity of a semiarid soil cultivated with Atriplex nummularia Lindl. in a field receiving saline waste during one and three years, in comparison with an area without crop and irrigation. Soil cultivated during three years presented, during the dry season, values of pH, CE, and activity of FDA hydrolyses higher than those registered in other areas. However, a negative correlation between the microbial carbon and values of qCO 2 was observed. The microbial biomass and the alkaline phosphates were also higher in the three years cultivated soil, in comparison with the native soil, non irrigated, confirming the role of halophytes for enhancing quality of soils under saline stress. Thus, the cultivation of A. nummularia is an alternative for using saline waste from the desalinization process.

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Section: Resultsunclassified

Atividade microbiana em solo do semi-árido sob cultivo de Atriplex nummularia

Pereira

Martínez

Porto

et al. 2004

Pesq. agropec. bras.

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“…The increase of free metals in soil irrigated with wastewater was related to a decrease of soil pH (Rattan et al, 2005). In turn, the concentration and availability of metals have the potential to affect the microbial communities (Bååth, 1989;Brookes, 1995;Chander and Brookes, 1991;Müller et al, 2002).…”

Section: Physicochemical Soil Properties Versus Soil Microbiotamentioning

confidence: 99%

“…reduction of microbial bio-mass or alteration of the community structure, Table 3). In addition, microbial functions impaired by metal contamination, include C and N mineralization, soil enzyme activity and litter decomposition (Bååth, 1989;Brookes, 1995;Chander and Brookes, 1991;Müller et al, 2002) (Table 3). Some studies reporting metal accumulation in soil after irrigation with wastewater related this accumulation with the reduction of alkaline phosphatase activity and soil ATP content, the suppression of the sporulation and diversity alteration of arbuscular mycorrhizal fungi and the emergence of metal resistance in bacteria (Faryal et al, 2007;Ortega-Larrocea et al, 2001;Yim and Tam, 1999).…”

Section: Contaminantsmentioning

confidence: 99%

Wastewater reuse in irrigation: A microbiological perspective on implications in soil fertility and human and environmental health

Becerra-Castro

Lopes

Vaz‐Moreira

et al. 2015

Environment International

430

211

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The reuse of treated wastewater, in particular for irrigation, is an increasingly common practice, encouraged by governments and official entities worldwide. Irrigation with wastewater may have implications at two different levels: alter the physicochemical and microbiological properties of the soil and/or introduce and contribute to the accumulation of chemical and biological contaminants in soil. The first may affect soil productivity and fertility; the second may pose serious risks to the human and environmental health. The sustainable wastewater reuse in agriculture should prevent both types of effects, requiring a holistic and integrated risk assessment. In this article we critically review possible effects of irrigation with treated wastewater, with special emphasis on soil microbiota. The maintenance of a rich and diversified autochthonous soil microbiota and the use of treated wastewater with minimal levels of potential soil contaminants are proposed as sine qua non conditions to achieve a sustainable wastewater reuse for irrigation.

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“…This result is in agreement with the previous findings obtained in the laboratory incubation experiment using the Cu-enriched soils with orchard grass amendment (Aoyama et al 1993). Chander and Brookes (1991b) also reported in field experiments that the Cu present in soil caused an accumulation of soil organic matter. Based on the difference in the total Cu contents between the soils with and without Cu enrichment (Table 1), the percentage of added Cu remaining at the end of the field incubation ranged from 92 to 96%.…”

Section: Properties Of the Soils At The End Of The Field Incubationmentioning

confidence: 91%

Effects of copper on the metabolism of¹⁴C-labeled glucose in soil in relation to amendment with organic materials

Aoyama

Itaya

1995

Soil Science and Plant Nutrition

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Effects of heavy metals from past applications of sewage sludge on microbial biomass and organic matter accumulation in a sandy loam and silty loam U.K. soil

Cited by 224 publications

References 17 publications

Atividade microbiana em solo do semi-árido sob cultivo de Atriplex nummularia

Atividade microbiana em solo do semi-árido sob cultivo de Atriplex nummularia

Wastewater reuse in irrigation: A microbiological perspective on implications in soil fertility and human and environmental health

Effects of copper on the metabolism of¹⁴C-labeled glucose in soil in relation to amendment with organic materials

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Effects of heavy metals from past applications of sewage sludge on microbial biomass and organic matter accumulation in a sandy loam and silty loam U.K. soil

Cited by 224 publications

References 17 publications

Atividade microbiana em solo do semi-árido sob cultivo de Atriplex nummularia

Atividade microbiana em solo do semi-árido sob cultivo de Atriplex nummularia

Wastewater reuse in irrigation: A microbiological perspective on implications in soil fertility and human and environmental health

Effects of copper on the metabolism of14C-labeled glucose in soil in relation to amendment with organic materials

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Effects of copper on the metabolism of¹⁴C-labeled glucose in soil in relation to amendment with organic materials