Soils - Composition
Temporal dynamics of abundance and composition of nitrogen-fixing communities across agricultural soils.
... the composition of the nifH gene community sequences, confirming previous results from PCR-DGGE data ...sandy soils B and D showed the lowest percentage of shared species between sampling times and hence ...
15
Spatial heterogeneity of physicochemical properties explains differences in microbial composition in arid soils from Cuatro Cienegas, Mexico
... Arid ecosystems are characterized by high spatial heterogeneity, and the variation among vegetation patches is a clear example. Soil biotic and abiotic factors associated with these patches have also been well documented ...
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Differences in Arbuscular Mycorrhizal Fungal Community Composition in Soils of Three Land Use Types in Subtropical Hilly Area of Southern China.
... degraded soils due to its impact on soil chemical properties and microbial ...field soils, with forest land soils vice ...forest soils was more closely related to that in orchard soils ...
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Floristic composition, diversity and structure of the “cerrado” sensu stricto on rocky soils in northern Goiás and southern Tocantins, Brazil
... (Floristic composition, diversity and structure of the “cerrado” sensu stricto on rocky soils in northern Goiás and southern Tocantins, ...well-drained soils but can also be found on shallower ...
11
Effect of byproducts of flue gas desulfurization on the soluble salts composition and chemical properties of sodic soils.
... sodic soils because they are comparatively cheap, generally available and have high gypsum ...solution composition of sodic soils also plays an important role in the reclamation ...salts ...
14
Effects of soil organic matter properties and microbial community composition on enzyme activities in cryoturbated arctic soils.
... community composition over enzyme activities and decomposition processes might not only be of relevance for decomposition of cryoturbated material in arctic ...bioturbated soils and in areas, where organic ...
10
Electrical Conductivity and Chemical Composition of Soil Solution: Comparison of Solution Samplers in Tropical Soils
... The smaller pore diameter of HM, which is selective for some C soluble fractions during solution collection, could explain the lower accuracy of multiple regression for data obtained from the HM compared to Suolo Acqua ...
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Carbon isotopic composition of branched tetraether membrane lipids in soils suggest a rapid turnover and a heterotrophic life style of their source organism(s)
... fer from low yields resulting in such low recovered amounts of released hydrocarbons that IRMS analyses of these ren- der impossible. In addition, GDGT concentrations in soils are low compared to those in peat, ...
15
Chemical composition and variability of essential oils from the fruit peels of Citrus medica L. and mineral analysis of the fruit peels and soils
... This study determined the chemical compositions of macro- and micronutrients in the fruit peels of Citrus medica collected in Pirenópolis, Jandaia and Santo Antonio do Descoberto, Goiás, Brazil, as well as the ...
7
Preliminary note on the soils of Madeira
... for soils with such cultural profiles that Anthropic phases have been adopted; they show also the inherent modifications due to the application of mineral and organic fertilisers, liming, ...these soils may ...
26
TESE_Ecotoxicological risk of cerium for tropical soils
... the composition of phosphate ...tropical soils - e.g., soils of Brazilian farming areas - may change the natural status of Ce in the soil ...tropical soils contaminated with Ce, as well as to ...
115
Nitrous oxide emissions in agricultural soils: a review
... Despite the influence of climatic conditions on the N 2 O production, soil management practices affecting factors previously described and benefiting microbial activity can also influence the N 2 O production. Among ...
17
Forms of organic phosphorus in wetland soils
... wetland soils was tested using simple linear regression while relationships between microbial biomass P and P composition were explored using Spearman’s rank correlation against major biogenic P ...
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IRON OXIDES IN SOILS
... Some recent studies have addressed the dynamics of P adsorption in the presence of C added in biochar forms (Yao et al., 2012; Lin et al., 2012; Xu et al., 2014). Biochar is a product of the pyrolysis, with oxygen ...
11
Ammonia-oxidizing Archaea from high artic soils
... these soils, in comparison to the other sites, might in turn allow the colonization and permanence of more diverse AOA ...tussock soils, in particular in the Taz-stol and Adv-tt samples, reflecting, not ...
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HEAVY METALS IN VINEYARDS AND ORCHARD SOILS
... The high levels of heavy metals such as Cu and Zn in the soil can cause shortening and thickening of the root apex of fruit trees and vine (AMBROSINI et al., 2015), increase in the number of lateral roots and plasmolysis ...
12
Aggregate stability in soils cultivated with eucalyptus
... weathered soils (Ferreira et ...the soils with dominant 2:1 clays (Six et ...tropical soils where the clay fraction is dominated by 1:1 minerals and oxides, a decrease of soil OM levels results in a ...
8
Non-microbial methane formation in oxic soils
... content and UV-B irradiation. We used five different soils, including one highly organic soil (referred to as peat, Table 1), which had been lyophilised and homogenized prior to the experiments. Humic acid and ...
27
Geochemical Signature of Amazon Tropical Rainforest Soils
... weathered soils, physicochemical soil properties express ...in soils determined by X-ray ...rainforest soils are more deeply weathered than soils in other Brazilian biomes and tropical ...
18
Mineralogical, chemical and electrochemical attributes of soils
... The soils evaluated presented different textural classes ranging from loamy sand (Entisol) to very clayey (some Oxisols and ...The soils differed substantially in terms of fertility, presenting a range from ...
11