Relationship between microbial functions and community structure following agricultural intensification in South American Chaco

Brandan, Carolina Gabriela Perez; Huidobro, Jorgelina; Galván, Marta Zulema; Gil, Silvina Vargas; Meriles, José Manuel

doi:10.17221/19/2016-pse

Cited by 10 publications

(6 citation statements)

References 23 publications

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“…A recent study indicated that agricultural intensifications could alter the expressions of soil biochemical indicators (e.g., enzyme activity) quicker than soil microbial diversity indicators (Pérez-Brandán et al, 2016 ). To that end, soil enzyme activities are often used as effective indicators for assessing the environmental consequences of applications of agricultural chemicals for soil nutrition (Gaind and Singh, 2016 ; Sihi et al, 2017 ) and xenobiotic pesticides (Sahoo et al, 2016 ; Mahapatra et al, 2017 ).…”

Section: Resultsmentioning

confidence: 99%

A review on effective soil health bio-indicators for ecosystem restoration and sustainability

Sihi

Bhowmik

Verma³

et al. 2022

Front. Microbiol.

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Preventing degradation, facilitating restoration, and maintaining soil health is fundamental for achieving ecosystem stability and resilience. A healthy soil ecosystem is supported by favorable components in the soil that promote biological productivity and provide ecosystem services. Bio-indicators of soil health are measurable properties that define the biotic components in soil and could potentially be used as a metric in determining soil functionality over a wide range of ecological conditions. However, it has been a challenge to determine effective bio-indicators of soil health due to its temporal and spatial resolutions at ecosystem levels. The objective of this review is to compile a set of effective bio-indicators for developing a better understanding of ecosystem restoration capabilities. It addresses a set of potential bio-indicators including microbial biomass, respiration, enzymatic activity, molecular gene markers, microbial metabolic substances, and microbial community analysis that have been responsive to a wide range of ecosystem functions in agricultural soils, mine deposited soil, heavy metal contaminated soil, desert soil, radioactive polluted soil, pesticide polluted soil, and wetland soils. The importance of ecosystem restoration in the United Nations Sustainable Development Goals was also discussed. This review identifies key management strategies that can help in ecosystem restoration and maintain ecosystem stability.

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Section: Resultsmentioning

confidence: 99%

A review on effective soil health bio-indicators for ecosystem restoration and sustainability

Sihi

Bhowmik

Verma³

et al. 2022

Front. Microbiol.

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“…in the Kuyavian-Pomeranian Voivodeship of Poland (Figure 1). activity in the soil [22,43,44]. Research by Pérez-Brandán et al [44] has shown that a cultural intensification can change soil biochemical indices more quickly than it chan indicators of soil microbial diversity.…”

Section: Experiments Designmentioning

confidence: 99%

“…According to Niewiadomska et al [41] and Niewiadomska et al [42], cultivation systems determine soil biochemical activity. The adoption of continuous simplified cultivation and no ploughing for several years may increase the TOC content compared to a ploughing system and, thus, the abundance of microorganisms and the level of enzymatic activity in the soil [22,43,44]. Research by Pérez-Brandán et al [44] has shown that agricultural intensification can change soil biochemical indices more quickly than it changes indicators of soil microbial diversity.…”

Section: Introductionmentioning

confidence: 99%

“…The adoption of continuous simplified cultivation and no ploughing for several years may increase the TOC content compared to a ploughing system and, thus, the abundance of microorganisms and the level of enzymatic activity in the soil [22,43,44]. Research by Pérez-Brandán et al [44] has shown that agricultural intensification can change soil biochemical indices more quickly than it changes indicators of soil microbial diversity. Many researchers believe that combining several indices into one would provide a better perception of soil condition than individual parameters [45].…”

Section: Introductionmentioning

confidence: 99%

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Changes in Soil Organic Matter and Biological Parameters as a Result of Long-Term Strip-Till Cultivation

Jaskulska,

Lemanowicz,

Dębska

et al. 2023

Agriculture

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The aim of the study was to determine the impact that three cultivation systems—conventional till (CT), reduced till (RT), and strip-till one-pass (ST-OP)—had on the biological parameters of the soil and their relationships with organic matter properties in the row zone (R) and inter-row zone (IR). For this purpose, a long-term static field experiment was carried out, from which soil samples were taken from a depth of 0–20 cm and the following were determined: TOC; TN content and fractional composition of organic matter; activity of dehydrogenases (DEHs), catalase (CAT), alkaline (AlP), and acid phosphatase (AcP); and the abundances of heterotophic bacteria (B), filamentous fungi (F), actinobacteria (Ac), and cellulolytic microorganisms (Ce). Soil samples for biological parameter tests were collected in summer (July) and autumn (October). RT and ST-OP increase the content of TOC, TN, carbon, and nitrogen in the humic and fulvic acid fractions. For the studied groups of microorganisms, the conditions for development were least favourable under CT cultivation. The results show that in July, the activities of DEH and CAT were the highest in ST-OP, whereas in October, they were the highest under CT. AlP and AcP activity were markedly the highest under ST-OP in both months. Enzyme activity was significantly the highest in the IR zone. The results indicate that, of the calculated multiparametric indicators, (AlP/AcP, GMea, BIF, BA12, and TEI), BA12 is a sensitive biological indicator of soil quality.

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“…Soil properties were studied at seven farm sites, cropped with peanuts between one and up to 20 years. Such on‐farm approaches were previously used to evaluate long‐term effects of specific land‐use management, such as application of biogas slurry (Wentzel et al., 2015), soybean monoculture (Pérez‐Brandán et al., 2016), or organic farming in Nicaragua (Castillo & Joergensen, 2001). In contrast to many previous studies, the current research is focussed on the interactions of MBC and microbial activity with exchangeable cations but especially with Al and Fe species in Andosols.…”

Section: Introductionmentioning

confidence: 99%

Peanut monoculture‐induced decline in fertility of Andosols in Nicaragua

Castillo

Materna

Jannoura

et al. 2022

J. Plant Nutr. Soil Sci.

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Background: Andosols are generally characterized by strong resilience to degradation and high soil fertility. This may decline during long-term peanut (Arachis hypogea) monoculture, as indicated by soil chemical and biological properties. Aims:The study investigated the monoculture-induced changes in soil chemical environment as driver for the decline in soil fertility. Methods:In this on-farm study, soils from seven sites cropped with peanut monoculture for different periods between 1 and 20 years were analyzed for soil chemical properties (pH, Al and Fe oxides, soil organic matter) as well as soil microbial biomass and microbial functional diversity, estimated by multiple substrate-induced respiration (MSIR).Results: Total nitrogen (N), soil organic carbon (SOC), and microbial biomass C (MBC) declined by 57%, 62%, and 73%, respectively, over 20 years of peanut monoculture in comparison with 1 year peanut cultivation. The SOC/total N ratio showed the most consistent decrease during this period. The Shannon diversity index, calculated from the MSIR responses, generally decreased from 2.5 to 2.1 during peanut monoculture, passing a minimum after 10 years. Discriminant function 1 declined with increasing years of peanut monoculture (r = -0.87) and explained 74% of the variance, separating nearly all peanut sites from each other. The main predictors were soil pH, exchangeable Al 3+ , and the SOC/total N ratio, but dithionite extractable Al and Fe as well the ratio of exchangeable Ca 2+ /Mg 2+ also made significant contributions. Conclusion:Twenty years of peanut monoculture led to a strong decline in soil fertility, as strongly indicated by soil microbiological indices.

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Relationship between microbial functions and community structure following agricultural intensification in South American Chaco

Cited by 10 publications

References 23 publications

A review on effective soil health bio-indicators for ecosystem restoration and sustainability

A review on effective soil health bio-indicators for ecosystem restoration and sustainability

Changes in Soil Organic Matter and Biological Parameters as a Result of Long-Term Strip-Till Cultivation

Peanut monoculture‐induced decline in fertility of Andosols in Nicaragua

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