[PDF] Top 20 Methods of soil organic carbon determination in Brazilian savannah soils
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Methods of soil organic carbon determination in Brazilian savannah soils
... Several methods exist for determining soil organic carbon, and each one has its own advantages and ...comparison of the experimental results ob- tained when these methods are ... See full document
7
Biochar: Agronomic and environmental potential in Brazilian savannah soils
... preservation, soil and water conservation and contribute to the sequestration of excess carbon in the atmosphere can reduce the environmental impact of anthropogenic ...for ... See full document
8
Organic carbon concentrations and stocks in Romanian mineral forest soils
... Estimating soils organic carbon stock and its change in time is an actual concern for scientists and climate change policy ...on determination of C stocks in Romania on ... See full document
14
Losses of soil, water, organic carbon and nutrients caused by water erosion in different crops and natural savannah in the northern Amazon
... difference in the other treatments of CB, BB, CO or ...energy of sediment transport in the runoff, making it difficult to break the ...aggregates. In the case of bare ... See full document
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ORGANIC SULFUR OXIDATION TO SULFATE IN SOIL SAMPLES FOR TOTAL SULFUR DETERMINATION BY TURBIDIMETRY
... Sulfur in the soil occurs in two basic forms, organic and inorganic ...The organic form accounts for 95 % of S in most ...effectiveness of organic S to ... See full document
7
Microbial biomass and basal respiration of selected Sub-Antarctic and Antarctic soils in the areas of some Russian polar stations
... Antarctic soils in carbon content, soil microbial biomass, and basal res- piration were statistically significant (P < ...all in- dexes by both t test and one-way Anova ...biomass ... See full document
8
O PTIMIZATION ANDV ALIDATION OF THES
... application of methodologies for the determination of pesticides in the soil face some obstacles, such as the concentration of these substances after application, which can be ... See full document
14
WATER EROSION IN SOILS UNDER EUCALYPTUS FOREST AS AFFECTED BY DEVELOPMENT STAGES AND MANAGEMENT SYSTEMS
... expansion of eucalyptus afforestation in southern Brazil, which occurs mostly on degraded pastures and other marginal areas, knowledge on water erosion under these forests is very ...evaluate soil, ... See full document
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Fertilization during the establishment of a Eucalyptus camaldulensis plantation in the northern Brazilian Amazon
... system in degraded savannah ...processes in degraded soils that are of economical importance for local inhabitants; in addition, in the ecological sense, timber and ... See full document
11
CHEMICAL CHARACTERIZATION AND INFRARED SPECTROSCOPY OF SOIL ORGANIC MATTER FROM TWO SOUTHERN BRAZILIAN SOILS
... Most of the research with humic substances has been performed either with humic acids (HA) or with soil organic matter (SOM), employing chemical and spectroscopic ...Modifications in ... See full document
11
Simulation of soil organic carbon changes in Vertisols under conservation tillage
... changes in this soil stock can cause large variations in atmospheric carbon ...flows. In general, SOC changes are based on direct methods in the field and the laboratory ... See full document
7
Comparison of different methods for the determination of total organic carbon and humic substances in Brazilian soils
... capacity of the former to oxidize the organic carbon in the humin fraction (Table 4), which is the humic fraction most resistant to decomposition and protected by mine- ral ...main ... See full document
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DETERMINAÇÃO DO CARBONO ORGÂNICO EM ORGANOSSOLOS E SOLOS COM HORIZONTES COM ELEVADO CONTEÚDO DE MATÉRIA ORGÂNICA
... The carbon content determined through modi- fied Walkley-Black (C-W & B md) (Tedesco et ...B) methods showed similarities, when compared to each other and to the C-Embrapa method, but with linear ... See full document
7
Xanthic- and Rhodic-Acrudoxes under cerrado vegetation: differential internal drainage and covarying micromorphological properties
... degree of silica removal can be also evidenced in soil thin ...impregnation of Fe oxides generating nodules in the A and B horizons preserves the optical anisotropy of the ... See full document
11
Soil microbial biomass in organic farming system
... practices in order to sustain soil’s profitability and quality. Organic farming is gaining worldwide acceptance and has been expanding at an annual rate of 20% in the last decade, accounting ... See full document
8
Contrasting pH buffering patterns in neutral-alkaline soils along a 3600 km transect in northern China
... addition of 8 mL HCl (2 M) at room temperature. The con- tent of SIC was taken as carbonate ...content. Soil clay content (< ...the soils with an ultrasonic probe (Roscoe, ... See full document
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Factors affecting spatial variation of annual apparent Q₁₀ of soil respiration in two warm temperate forests.
... fresh soil samples by two cores (10 cm diameter) located close to the ...(radius) of the measurement points) well explained the spatial distribution of fine root biomass [34], which indicated that ... See full document
8
LIMING EFFECT ON SOIL HEAVY METALS AVAILABILITY
... initial soil acidity and initial EDTA ...(19.77%) in extremely acid soils with the highest initial concentrations of available heavy ...metals. In heavily acid soils with middle ... See full document
6
COMPARISON OF ESTIMATION METHODS OF SOIL STRENGTH IN FIVE SOILS
... the soil strength is used to describe the susceptibility to deformation by pressure caused by agricultural ...purpose of this study was to compare different methods for estimating the inherent ... See full document
10
Carbon dioxide efflux in a rhodic hapludox as affected by tillage systems in southern Brazil
... with soil WFPS (r = ...significant in the NT plot only and when measured in the dynamic chamber, which was more sensitive to changes of these variables than the static ...observed in ... See full document
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