Fractions of soil organic matter in the vineyards of altitude regions in Santa Catarina

Dortzbach, Denílson; Assunção, Shirlei Almeida; Pereira, Marcos Gervásio; Neto, Eduardo Carvalho da Silva

doi:10.5433/1679-0359.2017v38n4p1799

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…Based on the results of the study, it could not be concluded that the SOC content is predominantly determined by the slope gradient, but that its values are significantly influenced by other factors such as land use/cover, slope aspect, management practices, soil type, depth, elevation, etc. Similar results were obtained by Dortzbach et al [43]. Their study investigated SOC content in vineyard and forest areas of wine producing regions in the state of Santa Catarina, Brazil.…”

Section: Effect Of Slope Gradient On Soc Contentsupporting

confidence: 86%

Influence of Slope Gradient and Aspect on Soil Organic Carbon Content in the Region of Niš, Serbia

et al. 2021

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Topography-induced microclimate differences determine the local spatial variation of soil characteristics as topographic factors may play the most essential role in changing the climatic pattern. The aim of this study was to investigate the spatial distribution of soil organic carbon (SOC) with respect to the slope gradient and aspect, and to quantify their influence on SOC within different land use/cover classes. The study area is the Region of Niš in Serbia, which is characterized by complex topography with large variability in the spatial distribution of SOC. Soil samples at 0–30 cm and 30–60 cm were collected from different slope gradients and aspects in each of the three land use/cover classes. The results showed that the slope aspect significantly influenced the spatial distribution of SOC in the forest and vineyard soils, where N- and NW-facing soils had the highest level of organic carbon in the topsoil. There were no similar patterns in the uncultivated land. No significant differences were found in the subsoil. Organic carbon content was higher in the topsoil, regardless of the slope of the terrain. The mean SOC content in forest land decreased with increasing slope, but the difference was not statistically significant. In vineyards and uncultivated land, the SOC content was not predominantly determined by the slope gradient. No significant variations across slope gradients were found for all observed soil properties, except for available phosphorus and potassium. A positive correlation was observed between SOC and total nitrogen, clay, silt, and available phosphorus and potassium, while a negative correlation with coarse sand was detected. The slope aspect in relation to different land use/cover classes could provide an important reference for land management strategies in light of sustainable development.

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Section: Effect Of Slope Gradient On Soc Contentsupporting

confidence: 86%

Influence of Slope Gradient and Aspect on Soil Organic Carbon Content in the Region of Niš, Serbia

et al. 2021

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“…Furthermore, there is also a higher risk of SOC being leached from upper to lower topographic positions in agricultural land compared to forests. Similar results were obtained by Dortzbach et al [74].…”

Section: Effects Of Land Use On Soc Across Topographic Positionssupporting

confidence: 92%

Topographic Position, Land Use and Soil Management Effects on Soil Organic Carbon (Vineyard Region of Niš, Serbia)

et al. 2021

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Spatial distribution of soil organic carbon (SOC) is the result of a combination of various factors related to both the natural environment and anthropogenic activities. The aim of this study was to examine (i) the state of SOC in topsoil and subsoil of vineyards compared to the nearest forest, (ii) the influence of soil management on SOC, (iii) the variation in SOC content with topographic position, (iv) the intensity of soil erosion in order to estimate the leaching of SOC from upper to lower topographic positions, and (v) the significance of SOC for the reduction of soil’s susceptibility to compaction. The study area was the vineyard region of Niš, which represents a medium-sized vineyard region in Serbia. About 32% of the total land area is affected, to some degree, by soil erosion. However, according to the mean annual soil loss rate, the total area is classified as having tolerable erosion risk. Land use was shown to be an important factor that controls SOC content. The vineyards contained less SOC than forest land. The SOC content was affected by topographic position. The interactive effect of topographic position and land use on SOC was significant. The SOC of forest land was significantly higher at the upper position than at the middle and lower positions. Spatial distribution of organic carbon in vineyards was not influenced by altitude, but occurred as a consequence of different soil management practices. The deep tillage at 60–80 cm, along with application of organic amendments, showed the potential to preserve SOC in the subsoil and prevent carbon loss from the surface layer. Penetrometric resistance values indicated optimum soil compaction in the surface layer of the soil, while low permeability was observed in deeper layers. Increases in SOC content reduce soil compaction and thus the risk of erosion and landslides. Knowledge of soil carbon distribution as a function of topographic position, land use and soil management is important for sustainable production and climate change mitigation.

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Fractions of soil organic matter in the vineyards of altitude regions in Santa Catarina

Cited by 2 publications

References 16 publications

Influence of Slope Gradient and Aspect on Soil Organic Carbon Content in the Region of Niš, Serbia

Influence of Slope Gradient and Aspect on Soil Organic Carbon Content in the Region of Niš, Serbia

Topographic Position, Land Use and Soil Management Effects on Soil Organic Carbon (Vineyard Region of Niš, Serbia)

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