Evaluating long-term impact of land use on selected soil physical quality indicators

Abu, S.T.

doi:10.1071/sr12360

Cited by 13 publications

(10 citation statements)

References 21 publications

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“…Furthermore, soil bulk density increased with the increase of soil depth, and the differences in soil bulk density between the different species stands was mainly related to the degree of decomposition and amounts of easily decomposable litters. Our results are in agreement with previous studies showing that increases in SOC are associated with an increase in soil total porosity (Abu, 2013) and decreases in soil bulk density (Koestel et al 2013). Besides, there was also a signi cant positive correlation between SOC and available nutrients ( -N, -N, AP and AK) ( Table 1).…”

Section: Effects Of the Three Different Plantations On Soil Nutrientssupporting

confidence: 93%

Effects of Three Plantation Coniferous Species on Plant-Soil Feedbacks and Soil Physical and Chemical Properties in Semi-Arid Mountain Ecosystems

Han

Liu

Zhang

et al. 2020

Preprint

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Background: Large-scale afforestation can significantly change ground cover and soil physicochemical properties, especially the soil fertility maintenance and water conservation function of artificial forest is very important in semi-arid mountain ecosystems. To better understand the effects of different tree growth on soil nutrient and soil physicochemical properties following afforestation to determine the best plantation tree species for improving soil fertility and water conservation functions. Methods: This study investigated the soil nutrient contents for three different tree species (Larix principis-rupprechtii, Picea crassifolia, Pinus tabuliformis), soils and plant-soil feedbacks, as well as the interaction between soil physicochemical properties. Results: The results revealed that the leaf and litter layer strongly influences soil nutrient availability through biogeochemical processes: P. tabuliformis has higher organic carbon, C:N and C:P in the leaves and litter layer than L. principis-rupprechtii or P. crassifolia, suggesting that higher C:N and C:P hinder litter decomposition. As a result, the L. principis-rupprechtii and P. crassifolia plantation forests significantly improve soil nutrients and clay component than P. tabuliformis plantation forest. Furthermore, the the L. principis-rupprechtii and P. crassifolia plantation forests significantly improved the soil capacity, soil total porosity and capillary porosity, decreased soil bulk density, and enhanced water storage capacity than P. tabuliformis plantation forest. In conclusion, the results of this study show that the strong link between plants and soil is tightly coupled to C:N and C:P, and there had strong correlation between soil particle size distribution and soil physicochemical properties. Conclusions: Therefore, our results recommend planting the L. principis-rupprechtii and P. crassifolia as the preferred tree species to enhance the soil fertility and water conservation functions, especially in semi-arid regions mountain forest ecosystems.

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Section: Effects Of the Three Different Plantations On Soil Nutrientssupporting

confidence: 93%

Effects of Three Plantation Coniferous Species on Plant-Soil Feedbacks and Soil Physical and Chemical Properties in Semi-Arid Mountain Ecosystems

Han

Liu

Zhang

et al. 2020

Preprint

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“…Non-mobilized soils are sometimes characterized by an increase in surface bulk density and reduction in MAP, especially for soils of a clayey texture (Raghavan et al, 1977;McVay et al, 2006;Abu, 2013). It is always important to mention the dependence of MAP on soil texture and bulk density (Stolf et al, 2011).…”

Section: Resultsmentioning

confidence: 99%

Three Dimensional Characterization of Soil Macroporosity by X-Ray Microtomography

Passoni¹,

Pires

Heck

et al. 2015

Rev. Bras. Ciênc. Solo

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analysis of the soil pore system represents an important way of characterizing soil structure. properties such as the shape and number of pores can be determined through soil pore evaluations. this study presents a three-dimensional (3d) characterization of the shape and number of pores of a sub-tropical soil. to do so, a second generation X-ray microtomograph equipped with a plain type detector was employed. a voltage of 120 kV and current of 80 ma was applied to the X-ray tube. the soil samples analyzed were collected at three different depths (0-10, 10-20, and 20-30 cm). the results obtained allowed qualitative (images) and quantitative (3d) analyses of the soil structure, revealing the potential of the microtomographic technique, as well as the study of differences in soil macroporosity at different depths. macroporosity was 5.14 % in the 0-10 cm layer, 5.10 % in the 10-20 cm layer, and 6.64 % in the 20-30 cm layer. the macroporosity of unclassified pores (UN) was 0.30 % (0-10 and 10-20 cm) and 0.40 % (20-30 cm), while equant pores (eQ) had values of 0.01 % at the three depths under analysis.Keywords: soil structure, pore size distribution, soil porosity, image analysis, soil microstructural components. RESUMO: CARACTERIZAÇÃO

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“…An inverse relationship between bulk density and SOC content has been observed in a range of studies (Arvidsson, 1998; da Silva et al, 1997; Ekwue, 1990; Keller and Hakansson, 2010). An increase in SOC due to amendment of organic materials has previously been shown to increase the macroporosity of soil (Abu, 2013; Schjønning et al, 2002, 2007). However, in the studies by Abu (2013) and Schjønning et al (2002, 2007), the differences in SOC originated from differences in intensification, crop rotation, or application of animal manure.…”

Section: Discussionmentioning

confidence: 99%

“…An increase in SOC due to amendment of organic materials has previously been shown to increase the macroporosity of soil (Abu, 2013; Schjønning et al, 2002, 2007). However, in the studies by Abu (2013) and Schjønning et al (2002, 2007), the differences in SOC originated from differences in intensification, crop rotation, or application of animal manure. The present results demonstrated that the effect of an organic soil amendment on the soil structure depends on the origin or quality of the organic matter.…”

Section: Discussionmentioning

confidence: 99%

“…An increase in soil organic matter (SOM) content, such as the one brought about by the use of organic waste fertilizers, may have profound effects on different aspects of soil physical structure (Tester, 1990). An increase in organic carbon (OC) has been associated with an increase in soil total porosity and macroporosity (Abu, 2013;Schjønning et al, 2002Schjønning et al, , 2007. Soils with increased OC generally have a more sponge-like pore system (de Jonge et al, 2009) and a higher degree of tortuosity (Schjønning et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Long‐term Effects of Organic Waste Fertilizers on Soil Structure, Tracer Transport, and Leaching of Colloids

2017

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Organic waste fertilizers have previously been observed to significantly affect soil organic carbon (SOC) content and soil structure. However, the effect of organic waste fertilizers on colloid dispersibility and leaching of colloids from topsoil has not yet been studied extensively. We investigated how the repeated application of different types of agricultural (liquid cattle slurry and solid cattle manure) and urban waste fertilizers (sewage sludge and composted organic household waste) affected soil physical properties, colloid dispersion from aggregates, tracer transport, and colloid leaching from intact soil cores. Total porosity was positively correlated with SOC content. Yearly applications of sewage sludge increased absolute microporosity (pores <30 μm) and decreased relative macroporosity (pores >30 μm) compared with the unfertilized control, whereas organic household waste compost fertilization increased both total porosity and the absolute porosity in all pore size classes (though not significant for 100-600 μm). Treatments receiving large amounts of organic fertilizers exhibited significantly lower levels of dispersible colloids compared with an unfertilized control and a treatment that had received moderate applications of cattle slurry. The content of water-dispersible colloids could not be explained by a single factor, but differences in SOC content, electrical conductivity, and sodium adsorption ratio were important factors. Moreover, we found that the fertilizer treatments did not significantly affect the solute transport properties of the topsoil. Finally, we found that the leaching of soil colloids was significantly decreased in treatments that had received large amounts of organic waste fertilizers, and we ascribe this primarily to treatment-induced differences in effluent electrical conductivity during leaching.

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Evaluating long-term impact of land use on selected soil physical quality indicators

Cited by 13 publications

References 21 publications

Effects of Three Plantation Coniferous Species on Plant-Soil Feedbacks and Soil Physical and Chemical Properties in Semi-Arid Mountain Ecosystems

Effects of Three Plantation Coniferous Species on Plant-Soil Feedbacks and Soil Physical and Chemical Properties in Semi-Arid Mountain Ecosystems

Three Dimensional Characterization of Soil Macroporosity by X-Ray Microtomography

Long‐term Effects of Organic Waste Fertilizers on Soil Structure, Tracer Transport, and Leaching of Colloids

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