Molecular discrimination of bacteria (organic versus mineral soil layers) of dry woodlands of Argentina

Noe, Laura; Ascher, Judith; Ceccherini, Maria Teresa; Abril, Adriana; Pietramellara, Giacomo

doi:10.1016/j.jaridenv.2012.04.007

Cited by 12 publications

(13 citation statements)

References 41 publications

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“…They showed that landuse history could be a stronger determinant of the composition of microbial communities than vegetation or soil properties and that the recovery of ecosystems to their native state can occur in several decades. Our findings support previous results, indicating C org as main driver of soil microbial diversity (Noe et al, 2012) in desert soils, and are in according with other authors which reported how microbial community composition is strongly affected by longterm organic fertilization practices (Jangid et al, 2008;Williams et al, 2013). In addition, we observed how the subsoil is differentially affected by management in terms of C org composition after 65 years of anthropization, where microbial diversity appeared to be more shaped by the distribution of the labile fraction of the organic matter rather than its total amount.…”

Section: Discussionsupporting

confidence: 93%

“…As so deep human changes of landform have occurred, these soils have developed dramatically different properties as compared to their original conditions and therefore they should be recognized as anthropogenic soils, according to recent tendency in pedology (Dudal et al, 2002;Dazzi and Monteleone, 2007;Dazzi et al, 2009). In particular, introduction of agriculture has drastically changed the natural soilscape of these areas mainly by terracing, largely increased water availability and organic matter inputs, influencing the primary productivity as well as the microbial activity and the carbon cycle (Li et al, 2009;Noe et al, 2012). Land use change from natural to arable agriculture, is considered responsible for a rapid depletion of organic matter in temperate or tropical environments, especially of soluble or labile organic carbon forms.…”

Section: Introductionmentioning

confidence: 99%

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Evolution of organic carbon pools and microbial diversity in hyperarid anthropogenic soils

Camilli

Dell’Abate

Mocali

et al. 2016

Journal of Arid Environments

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Evolution of organic carbon pools and microbial diversity in hyperarid anthropogenic soils

Camilli

Dell’Abate

Mocali

et al. 2016

Journal of Arid Environments

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“…Thus, it might be suitable for determining soil quality of forest soils after vegetation thinning treatments. These thinned areas tended to produce smaller SQI values (indicating a depletion in soil quality) than those in undisturbed areas subject to naturally occurring changes in the balance of the soil physicochemical, microbiological and biochemical properties (Noe, Ascher, Ceccherini, Abril, & Pietramellara, 2012). Hence, the SQI can indicate a deterioration in soil quality in areas subjected to highintensity thinning treatments (Zornoza et al, 2015).…”

Section: Soil-quality Indexmentioning

confidence: 99%

A soil‐quality index for soil from Mediterranean forests

Andrés-Abellán

Wic-Baena

López‐Serrano

et al. 2019

European J Soil Science

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Treatments involving vegetation thinning have become more frequent in Mediterranean forest ecosystems. Under extreme climate conditions, this practice can affect the balance between physicochemical, microbiological and biochemical soil properties, modifying the soil quality and the ability of these forest ecosystems to regenerate. The aim of this study was to use principal component analysis (PCA) to develop a multivariable soil‐quality index (SQI) applicable to the Mediterranean forest ecosystems of the Cuenca mountain range in central‐eastern Spain. To achieve this, seven physicochemical properties (moisture, pH, electrical conductivity, carbonate, total organic carbon, total nitrogen and available phosphorus) and six microbiological properties (basal respiration and microbial biomass carbon, as well as the activity of dehydrogenase, urease, phosphatase and β‐glucosidase enzymes) were measured seasonally between 2011 and 2012. Soil samples were obtained from seven unmanaged and undisturbed forest areas and these data were used to create the SQI. Subsequently, we applied this SQI to soil samples from other forests in the Cuenca mountain range, which had been affected by different thinning treatments. Our analysis showed that the greater was the canopy present in these treated forests, the larger were the average values for all 13 variables. The smallest SQI values were in areas that had been intensively thinned. Therefore, our results suggest that this SQI is an important tool for the development of appropriate measures to maintain the quality of forest soil in Spanish Mediterranean forest ecosystems. Highlights We developed a multivariable soil quality index (SQI) to assess status of Mediterranean forest ecosystems. This index is adequate to detect changes quickly in forest soil of Mediterranean ecosystems. The SQI helped to assess the effects of thinning treatments on forest soil. The SQI enabled establishment of different levels of soil quality (very high, high, medium and low).

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“…Also, it is important to mention that 3-site was cleared eight years ago and their original soils have higher SOM content (5.28%) [40], than the others sites. In 1-site and 2site conventional tillage agriculture started more than 20 years ago.…”

Section: Relationship Between Residue and Soil Compoundsmentioning

confidence: 99%

Labile and Recalcitrant Carbon in Crop Residue and Soil under No-Till Practices in Central Region of Argentina

Abril

Casado-Murillo²,

Vázquez³

et al. 2013

TOASJ

Self Cite

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We evaluated the effects of the amount and type of C compounds (labile/recalcitrant) of crop residues on the soil organic matter (SOM) components under no-tillage practices in semiarid region of Argentina, with the aim of establishing criteria for sustainable agriculture. Five agricultural situations were evaluated: soybean/wheat rotation (wheat crop and at bare fallow); soybean monoculture; soybean/maize rotation and maize/wheat/potato rotations with biannual ploughing. In each situation crop residues and soil samples were collected. In residue samples, biomass (total and components), organic carbon, insoluble fibers, and soluble C compounds were evaluated. In soil samples total SOM, non-humic substances (NHS), humic substances (HS), humic (HA), and fulvic acids (FA) were analyzed. The total biomass and its components differed among situations and were lower in the situation with plough, while the fiber contents were higher in situations that includes wheat crop. Total SOM, NHS, HA content were higher in the plowed situation (57.20 g kg-1 , 47.30 g kg-1 , 7.80 g kg-1 respectively). We concluded that the total SOM quantity in continuous no-tillage is not affected by the different crop rotations and sequences, but the HA quantity (stable SOM) seems to be favored by the high recalcitrant compounds amount of the crop residues (particularly wheat). For these reasons, the following criteria for sustainable agriculture management in semiarid zones can be suggested: a) continuous no-tillage utilization; b) summer crop annual rotations; and c) winter wheat crop instead of bare fallow.

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Molecular discrimination of bacteria (organic versus mineral soil layers) of dry woodlands of Argentina

Cited by 12 publications

References 41 publications

Evolution of organic carbon pools and microbial diversity in hyperarid anthropogenic soils

Evolution of organic carbon pools and microbial diversity in hyperarid anthropogenic soils

A soil‐quality index for soil from Mediterranean forests

Labile and Recalcitrant Carbon in Crop Residue and Soil under No-Till Practices in Central Region of Argentina

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