Impact of land use and tillage practice on soil macropore characteristics inferred from X-ray computed tomography

Budhathoki, Suman; Lamba, Jasmeet; Srivastava, Puneet; Williams, Colleen; Arriaga, Francisco J.; Karthikeyan, K. G.

doi:10.1016/j.catena.2021.105886

Cited by 29 publications

(12 citation statements)

References 61 publications

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“…The time between the investigation was done and when the tillage was conducted was short because the plants were in their early stage of growth. Factors affecting the characteristics of macropores are biological activities, land use, tillage, management practices, and the interactions among these factors (Budhathoki et al 2022).…”

Section: Effects Of Cultivation On Soil Physical Propertiesmentioning

confidence: 99%

Natural and Anthropogenic Factors Affecting the Development of Two Highland Agricultural Soils of Bukidnon, Philippines

Calalang,

Bock,

Colinet

et al. 2023

Philipp Agric Scientist

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This research was conducted in two highland areas of Bukidnon, Philippines: Miarayon, a sub-catchment of the upper Cagayan de Oro River; and Bendum, a sub-catchment of the upper Pulangui River. Due to their pyroclastic parent rock materials, soils in the upper Cagayan de Oro are classified as Andic Cambisol in open and convex positions, and Andic Umbrisol in concave and depressed positions. Soils in the upper Pulangui are classified as Pisoplinthic Acrisol, Ferralic Nitisol, and Acric Nitisol in areas with ultramafic rock parent materials, and Haplic Cambisol with pyroclastic deposits. Element contents in rocks were congruent to the total soil element content analysis results except for the total calcium which was higher in Miarayon. This is attributed to the parent rocks and soil management. Total magnesium and iron were highlighted in upper Pulangui soils because of their ultramafic rock parent materials. Soil management practices and length of cultivation were identified as anthropogenic factors affecting soil development. The constant application of organic fertilizers from chicken manure had caused the build-up of organic carbon and calcium in the topsoil of Miarayon soils. The differences in total organic carbon, total nitrogen, and potassium were highly significant, particularly in soil pH and total calcium between two sites in Miarayon. In Bendum, traces of phosphate fertilizers and lime application were evidenced by the relatively higher phosphorus and calcium content in topsoil. Tillage influenced the water conductivity in soils. Organic matter content increased the water-holding capacities of soil.

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Section: Effects Of Cultivation On Soil Physical Propertiesmentioning

confidence: 99%

Natural and Anthropogenic Factors Affecting the Development of Two Highland Agricultural Soils of Bukidnon, Philippines

Calalang,

Bock,

Colinet

et al. 2023

Philipp Agric Scientist

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“…Additionally, 3D modeling software programs like ImageJ and Avizo are used to measure soil pore geometric features (e.g., pore number, volume, shape, rounding rate and size distribution) and spatial distribution (e.g., connectivity and curvature) [7,[23][24][25][26], resulting in a detailed three-dimensional reconstruction. Building upon the three-dimensional reconstruction model, the impact of macropores on soil moisture, including saturated hydraulic conductivity, moisture characteristic curve and simulated absolute permeability test, has been explored [27,28]. In Guangxi, existing research on mine reclamation soil primarily concentrates on reclaimed soil nutrients and remediation modes [29,30], with a noticeable dearth of studies focusing on quantifying the pore structure of mine reclamation soil using CT technology.…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Reclamation Years and Modes on Soil Moisture Transport Pathways and Permeability Characteristics in an Open-Pit Mining Area in Guangxi

Wang,

Gan,

Zhang

et al. 2024

Water

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The microstructural characteristics of reclaimed soil in Guangxi’s bauxite mining area play a pivotal role in determining soil reclamation quality, yet they remain poorly understood. To explore the impact of varying reclamation years and modes on pore structure characteristics in this region, we selected four reclamation regions: grassland reclamation with 2 years (RG2a), grassland reclamation with 10 years (RG10a), bare ground reclamation with 2 years (RW2a) and bare ground reclamation with 10 years (RW10a). Utilizing X-ray CT technology, we scanned soil columns within a 30 cm depth to analyze pore distributions using Avizo 2020 software combined with ImageJ 1.53c and its plugins. The findings revealed a significant increase in the number of 2D and 3D macropores by 1.09% and 88.89% in RG10a compared to RG2a, as well as 39.01% and 13.33% in RG10a compared to RW10a, respectively. Furthermore, RG10a was observed to be more effective in enhancing the rounding rate of macropores and mesopores, as well as average branch length and density. Additionally, RG10a demonstrated a greater capacity to increase porosity and connectivity while reducing curvature and specific surface area among the three-dimensional parameters. The 3D reconstruction illustrated that RG modes exhibited a more abundant distribution of macropores compared to RW modes and 10a modes showed a higher presence of macropores than 2a modes, which displayed a tilted laminar pattern. Soil moisture movement simulations conducted through Avizo 2020 under various modes indicated that RG modes presented a more extensive capacity for vertical flow, while 10a modes displayed more abundant flow lines and a higher infiltration rate (K) compared to 2a modes. In conclusion, prolonged reclamation years favoring grassland reclamation modes could enhance water and nutrient transport pathways toward traditional agricultural soil.

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“…Extensive studies have shown that the influence of land use on soil pore properties is considered one of the most critical factors strongly affecting the preferential flow transport process (Baez 2019). Land use type affects plant residue and root characteristics, resulting in differences in soil macropore properties (Budhathoki et al 2022). Zhang et al (2021) reported that the restoration of vegetation from herbaceous to woodland would increase the soil porosity of the 0-50 cm soil layer.…”

Section: Introductionmentioning

confidence: 99%

Effects of preferential flow on soil nutrient transport in karst slopes after recultivation

Yan

Yang

Dai

2023

Environ. Res. Lett.

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In response to the global food shortage, a large amount of abandoned land in karst areas has been reclaimed as cultivated land, causing severe nonpoint source pollution. Preferential flow-driven soil nutrient transport on karst slopes remains poorly studied, though it is a major factor in nonpoint source pollution, as it responds to changes caused by reclamation. We explored the characteristics of soil preferential flow differences in recultivated land, grassland, and shrubland from returning farmland by dye tracer experiments and quantitatively examined the effect of preferential flow on nutrient transport. Under the condition of 40 mm precipitation, the preferential flow paths (PFP) of the three types of plots were mainly distributed from 0– 40 cm. The total porosity in the 20–40 cm soil layer was significantly reduced by reclamation, and the number of preferred flow paths in the 20–40 cm soil layer was significantly reduced from 60 to less than 10, which was significantly less than that in grassland and shrubland. But, reclamation results in the transport of more soil nutrients by preferential flow. The contribution rate of preferential flow to other nutrient indexes in the reclaimed land, in contrast to grassland and shrubland, was lower than zero, except for OM and TK. Moreover, when the PFP was connected to the rock-soil interface, the soil water can leak underground through the rock-soil interface quickly. Therefore, our findings indicated that reclamation reduces the distribution depth of the PFP. Still, the connection of soil preferential flow to the rock-soil interface increases the transport of soil nutrients to deep fissures and even underground rivers, thereby causing recultivated land to become one of the main sources of groundwater pollution in karst areas.

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Impact of land use and tillage practice on soil macropore characteristics inferred from X-ray computed tomography

Cited by 29 publications

References 61 publications

Natural and Anthropogenic Factors Affecting the Development of Two Highland Agricultural Soils of Bukidnon, Philippines

Natural and Anthropogenic Factors Affecting the Development of Two Highland Agricultural Soils of Bukidnon, Philippines

Effects of Different Reclamation Years and Modes on Soil Moisture Transport Pathways and Permeability Characteristics in an Open-Pit Mining Area in Guangxi

Effects of preferential flow on soil nutrient transport in karst slopes after recultivation

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