{"type": "FeatureCollection", "features": [{"id": "10.1002/ldr.2726", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:14:34Z", "type": "Journal Article", "created": "2017-02-23", "title": "Conservation Agriculture Had A Poor Impact On The Soil Porosity Of Veneto Low-Lying Plain Silty Soils After A 5-Year Transition Period", "description": "Abstract<p>Conservation agriculture practices have been proposed as a set of techniques for improving soil structure properties and related ecosystem services. This study compared conservation agriculture (CA) practices (no\uffe2\uff80\uff90tillage, cover crop and residue retention) and conventional intensive tillage system in order to evaluate their effects on total porosity, pore size distribution, pore architecture and morphology. The experiment was set up in 2010 on four farms of the low\uffe2\uff80\uff90lying Veneto Region plain characterized by silty soils. Almost hundred soil samples were collected in 2015 at four depths down to 50\uffe2\uff80\uff90cm layer and investigated for porosity from micrometre (0\uffc2\uffb70074\uffc2\uffa0\uffce\uffbcm) to macrometre (2\uffc2\uffb75\uffc2\uffa0mm) by coupling mercury intrusion porosimetry and X\uffe2\uff80\uff90ray computed microtomography (\uffce\uffbcCT). Indices of soil morphology and architecture were derived by analysing 3D images and mercury intrusion porosimetry pore size curves. Results suggested that silty soils of Veneto plain are microstructured because much (82%) of the porosity ranged between 0\uffc2\uffb70074 and 30\uffc2\uffa0\uffce\uffbcm. CA practices positively influenced the ultramicroporosity class (0\uffc2\uffb71\uffe2\uff80\uff935\uffc2\uffa0\uffce\uffbcm) (1\uffc2\uffb786E\uffe2\uff80\uff9001 vs 1\uffc2\uffb767E\uffe2\uff80\uff9001\uffc2\uffa0\uffce\uffbcm3\uffc2\uffa0\uffce\uffbcm\uffe2\uff88\uff923) that is strictly linked to soil organic carbon stabilization while no effects were observed in X\uffe2\uff80\uff90ray \uffce\uffbcCT porosity domain (&gt; 26\uffc2\uffa0\uffce\uffbcm). Silty soils of Veneto plain showed a slow reaction to CA because of the poor aggregate stability and low soil organic carbon. However, the positive response of the ultramicropore fraction indicates that a virtuous cycle was initiated between soil organic carbon and porosity, hopefully leading to well\uffe2\uff80\uff90developed macropore systems and, in turn, enhanced soil functions and ecosystem services. Copyright \uffc2\uffa9 2017 John Wiley &amp; Sons, Ltd.</p>", "keywords": ["2. Zero hunger", "Conservation agriculture; Mercury intrusion porosimetry; Pore morphology and architecture; Pore size distribution; X-ray computed microtomography; Environmental Chemistry; Development3304 Education; 2300; Soil Science", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1002/ldr.2726"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Land%20Degradation%20%26amp%3B%20Development", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/ldr.2726", "name": "item", "description": "10.1002/ldr.2726", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/ldr.2726"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-05-12T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2015.04.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:16:56Z", "type": "Journal Article", "created": "2015-04-27", "title": "Application of smoothed particle hydrodynamics (SPH) and pore morphologic model to predict saturated water conductivity from X-ray CT imaging in a silty loam Cambisol", "description": "20 This study aims to estimate saturated hydraulic conductivity in a silty loam soil and compare modelled data with 21 experimental ones. The flow characteristics of twelve undisturbed soil cores (5 cm in diameter \u00d7 6 cm high) were 22 measured in the laboratory after performing X-ray computed microtomography (microCT) analysis. MicroCT 3D 23 imaging was integrated with an existing pore morphologic model and a numerical simulation based on mesh-24 free smoothed particle hydrodynamics (SPH) to calculate the water flow through the macropore network 25 (pores N 40 \u03bcm). Results showed that the proposed SPH method was able to predict hydraulic conductivity of 26 large-sized samples as falling in the range of the experimental ones. By contrast the morphologic model generally 27 underestimated the water flow and was slightly affected by the pore shape. Increasing microCT imaging resolu-28 tion and expanding the variability with other soil types will improve the understanding of the role of micropore 29 size and morphology on water conductivity. 30", "keywords": ["2. Zero hunger", "550", "[ SDV.SA.SDS ] Life Sciences [q-bio]/Agricultural sciences/Soil study", "0207 environmental engineering", "600", "04 agricultural and veterinary sciences", "02 engineering and technology", "Pore size distribution", "[ SDE.IE ] Environmental Sciences/Environmental Engineering", "Saturated hydraulic conductivity", "Soil structure", "0401 agriculture", " forestry", " and fisheries", "[ SDU.STU.HY ] Sciences of the Universe [physics]/Earth Sciences/Hydrology", "X-ray computed microtomography"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2015.04.019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2015.04.019", "name": "item", "description": "10.1016/j.geoderma.2015.04.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2015.04.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-10-01T00:00:00Z"}}, {"id": "10.1016/j.still.2005.02.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:17:39Z", "type": "Journal Article", "created": "2005-03-11", "title": "Effect Of Tillage And Crop Rotations On Pore Size Distribution And Soil Hydraulic Conductivity In Sandy Clay Loam Soil Of The Indian Himalayas", "description": "Abstract   Tillage management can affect crop growth by altering the pore size distribution, pore geometry and hydraulic properties of soil. In the present communication, the effect of different tillage management viz., conventional tillage (CT), minimum tillage (MT) and zero-tillage (ZT) and different crop rotations viz. [(soybean\u2013wheat (S\u2013W), soybean\u2013lentil (S\u2013L) and soybean\u2013pea (S\u2013P)] on pore size distribution and soil hydraulic conductivities [saturated hydraulic conductivity ( K  sat ) and unsaturated hydraulic conductivity { k ( h )}] of a sandy clay loam soil was studied after 4 years prior to the experiment. Soil cores were collected after 4 year of the experiment at an interval of 75\u00a0mm up to 300\u00a0mm soil depth for measuring soil bulk density, soil water retention constant ( b ), pore size distribution,  K  sat  and  k ( h ). Nine pressure levels (from 2 to 1500\u00a0kPa) were used to calculate pore size distribution and  k ( h ). It was observed that b values at all the studied soil depths were higher under ZT than those observed under CT irrespective of the crop rotations. The values of soil bulk density observed under ZT were higher in 0\u201375\u00a0mm soil depth in all the crop rotations. But, among the crop rotations, soils under S\u2013P and S\u2013L rotations showed relatively lower bulk density values than S\u2013W rotation. Average values of the volume fraction of total porosity with pores  3 \u00a0m \u22123  under CT, MT and ZT; and 0.592, 0.610 and 0.626\u00a0m 3 \u00a0m \u22123  under S\u2013W, S\u2013L and S\u2013P, respectively. In contrast, the average values of the volume fraction of total porosity with pores >150\u00a0\u03bcm in diameter (pores draining freely with gravity) were 0.124, 0.096 and 0.095\u00a0m 3 \u00a0m \u22123  under CT, MT and ZT; and 0.110, 0.104 and 0.101\u00a0m 3 \u00a0m \u22123  under S\u2013W, S\u2013L and S\u2013P, respectively. Saturated hydraulic conductivity values in all the studied soil depths were significantly greater under ZT than those under CT (range from 300 to 344\u00a0mm\u00a0day \u22121 ). The observed  k ( h ) values at 0\u201375\u00a0mm soil depth under ZT were significantly higher than those computed under CT at all the suction levels, except at \u221210, \u2212100 and \u2212400\u00a0kPa suction. Among the crop rotations, S\u2013P rotation recorded significantly higher  k ( h ) values than those under S\u2013W and S\u2013L rotations up to \u221240\u00a0kPa suction. The interaction effects of tillage and crop rotations affecting the  k ( h ) values were found significant at all the soil water suctions. Both S\u2013L and S\u2013P rotations resulted in better soil water retention and transmission properties under ZT.", "keywords": ["2. Zero hunger", "Tillage management", "Loamy sand", "Sandy soils", "550", "Soil hydraulic conductivity", "Soybean based cropping system", "India", "04 agricultural and veterinary sciences", "Pore size distribution", "15. Life on land", "Soil fertility", "630", "6. Clean water", "Crop rotation", "0401 agriculture", " forestry", " and fisheries", "Conservation tillage"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2005.02.018"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2005.02.018", "name": "item", "description": "10.1016/j.still.2005.02.018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2005.02.018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-04-01T00:00:00Z"}}, {"id": "10.1071/sr18271", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:18:41Z", "type": "Journal Article", "created": "2019-08-26", "title": "Impacts of land use on hydrodynamic properties and pore architecture of volcanic soils from the Mexican Highlands", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Volcanic soils are important resources because of their unique mineralogical and physical characteristics, and allophanic Andosols represent some of the world\u2019s most fertile soils. However, their unique properties can be lost when cultivated. Most soils in the Central Valley, Mexico, are derived from volcanic materials. This valley encompasses one of the largest water supply systems in the world by volume, but is affected by soil degradation and deforestation. Sustainably managing volcanic soils requires understanding how land use affects their hydrodynamic properties. Gas adsorption and mercury intrusion porosimetry, water retention curves, tension infiltrometry and X-ray tomography were used to describe pore structure characteristics. Two volcanic soils (one Andosol and one derived from indurated tuff \u2013 Tepetates), three land uses (maize monoculture, maize\u2013wheat rotation and fallow) and two horizons (Ap and A2 for maize monoculture and maize\u2013wheat rotation) were studied. Tillage affected topsoil by increasing the sand fraction by 38% and decreasing total porosity and macroporosity by 23% and 40% respectively. Macropore size was reduced and the number of isolated macropores was higher in the tilled layer under maize, compared with untilled subsoil. The plot under maize\u2013wheat rotation had lower allophane content, and saturated hydraulic conductivity was reduced by nearly an order of magnitude and water retention by half, compared with maize and fallow plots. Compared with Andosols, Tepetates showed differences in mineralogical composition with lower contents of amorphous compounds and in its porous network characteristics with twice the total and percolating macroporosity compared with the maize plot. Its high content of organic carbon (3.5%) seemed beneficial for its hydrodynamic properties. Sustainable agricultural management of these volcanic soils requires reducing mechanised tillage, avoiding periods when soil is bare, not applying maize\u2013wheat rotation and applying maize\u2013fallow rotation allowing natural vegetation growth.</p></article>", "keywords": ["2. Zero hunger", "550", "[SDE.MCG]Environmental Sciences/Global Changes", "04 agricultural and veterinary sciences", "15. Life on land", "630", "6. Clean water", "12. Responsible consumption", "[SDE.MCG] Environmental Sciences/Global Changes", "pore size distribution", "13. Climate action", "Andosol; pore size distribution; X-ray tomography", "0401 agriculture", " forestry", " and fisheries", "X-ray tomography", "Andosol"]}, "links": [{"href": "https://doi.org/10.1071/sr18271"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1071/sr18271", "name": "item", "description": "10.1071/sr18271", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1071/sr18271"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-01-01T00:00:00Z"}}, {"id": "10.1590/s0100-06832008000400008", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:20:32Z", "type": "Journal Article", "created": "2008-10-15", "title": "Short And Long-Term Effects Of Tillage Systems And Nutrient Sources On Soil Physical Properties Of A Southern Brazilian Hapludox", "description": "<p>Soil tillage promotes changes in soil structure. The magnitude of the changes varies with the nature of the soil, tillage system and soil water content and decreases over time after tillage. The objective of this study was to evaluate short-term (one year period) and long-term (nine year period) effects of soil tillage and nutrient sources on some physical properties of a very clayey Hapludox. Five tillage systems were evaluated: no-till (NT), chisel plow + one secondary disking (CP), primary + two (secondary) diskings (CT), CT with burning of crop residues (CTb), and CT with removal of crop residues from the field (CTr), in combination with five nutrient sources: control without nutrient application (C); mineral fertilizers, according to technical recommendations for each crop (MF); 5 Mg ha-1 yr-1 of poultry litter (wetmatter) (PL); 60 m\uffc2\uffb3 ha-1 yr-1 of cattle slurry (CS) and; 40 m\uffc2\uffb3 ha-1 yr-1 of swine slurry (SS). Bulk density (BD), total porosity (TP), and parameters related to the water retention curve (macroporosity, mesoporosity and microporosity) were determined after nine years and at five sampling dates during the tenth year of the experiment. Soil physical properties were tillage and time-dependent. Tilled treatments increased total porosity and macroporosity, and reduced bulk density in the surface layer (0.00-0.05 m), but this effect decreased over time after tillage operations due to natural soil reconsolidation, since no external stress was applied in this period. Changes in pore size distribution were more pronounced in larger and medium pore diameter classes. The bulk density was greatest in intermediate layers in all tillage treatments (0.05-0.10 and 0.12-0.17 m) and decreased down to the deepest layer (0.27-0.32 m), indicating a more compacted layer around 0.05-0.20 m. Nutrient sources did not significantly affect soil physical and hydraulic properties studied.</p>", "keywords": ["2. Zero hunger", "distribui\u00e7\u00e3o de tamanho de poros", "bulk density", "pore size distribution", "manure", "dejetos animais", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "densidade do solo", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1590/s0100-06832008000400008"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Revista%20Brasileira%20de%20Ci%C3%AAncia%20do%20Solo", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0100-06832008000400008", "name": "item", "description": "10.1590/s0100-06832008000400008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0100-06832008000400008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-08-01T00:00:00Z"}}, {"id": "10.7717/peerj.9750", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:25:37Z", "type": "Journal Article", "created": "2020-09-09", "title": "KEYLINK: towards a more integrative soil representation for inclusion in ecosystem scale models. I. review and model concept", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>The relatively poor simulation of the below-ground processes is a severe drawback for many ecosystem models, especially when predicting responses to climate change and management. For a meaningful estimation of ecosystem production and the cycling of water, energy, nutrients and carbon, the integration of soil processes and the exchanges at the surface is crucial. It is increasingly recognized that soil biota play an important role in soil organic carbon and nutrient cycling, shaping soil structure and hydrological properties through their activity, and in water and nutrient uptake by plants through mycorrhizal processes. In this article, we review the main soil biological actors (microbiota, fauna and roots) and their effects on soil functioning. We review to what extent they have been included in soil models and propose which of them could be included in ecosystem models. We show that the model representation of the soil food web, the impact of soil ecosystem engineers on soil structure and the related effects on hydrology and soil organic matter (SOM) stabilization are key issues in improving ecosystem-scale soil representation in models. Finally, we describe a new core model concept (KEYLINK) that integrates insights from SOM models, structural models and food web models to simulate the living soil at an ecosystem scale.</p></article>", "keywords": ["[SDE] Environmental Sciences", "550", "Root system", "talna biota", "hydrology", "2511.06 Conservaci\u00f3n de Suelos", "Soil Organic Matter", "11. Sustainability", "Soil biota", "Biology (General)", "PSD", "info:eu-repo/classification/ddc/610", "2. Zero hunger", "Ecology", "General Neuroscience", "R", "velikosti por", "General Medicine", "04 agricultural and veterinary sciences", "2511 Ciencias del Suelo (Edafolog\u00eda)", "Root water uptake", "Pore size distribution (PSD)", "[SDE]Environmental Sciences", "8. Economic growth", "Medicine", "pedofavna", "General Agricultural and Biological Sciences", "soil fauna", "Engineering sciences. Technology", "570", "QH301-705.5", "distribucija", "Soil Science", "Genetics and Molecular Biology", "soil biota", "Soil fauna", "pore size distribution", "hidrologija", "info:eu-repo/classification/udc/630*1", "Ecosystem", "ecosystem", "ekosistem", "model", "Soil organic matter (SOM)", "15. Life on land", "SOM", "13. Climate action", "General Biochemistry", "0401 agriculture", " forestry", " and fisheries", "2508 Hidrolog\u00eda", "Hydrology", "Model"]}, "links": [{"href": "http://pure.iiasa.ac.at/id/eprint/16685/1/peerj-9750.pdf"}, {"href": "https://peerj.com/articles/9750.pdf"}, {"href": "https://pure.iiasa.ac.at/id/eprint/16685/1/peerj-9750.pdf"}, {"href": "https://pub.epsilon.slu.se/17599/1/deckmyn_g_et_al_200925.pdf"}, {"href": "https://doi.org/10.7717/peerj.9750"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PeerJ", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.7717/peerj.9750", "name": "item", "description": "10.7717/peerj.9750", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.7717/peerj.9750"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-09-09T00:00:00Z"}}, {"id": "11250/2734105", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:26:07Z", "type": "Journal Article", "created": "2020-09-09", "title": "KEYLINK: towards a more integrative soil representation for inclusion in ecosystem scale models. I. review and model concept", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>The relatively poor simulation of the below-ground processes is a severe drawback for many ecosystem models, especially when predicting responses to climate change and management. For a meaningful estimation of ecosystem production and the cycling of water, energy, nutrients and carbon, the integration of soil processes and the exchanges at the surface is crucial. It is increasingly recognized that soil biota play an important role in soil organic carbon and nutrient cycling, shaping soil structure and hydrological properties through their activity, and in water and nutrient uptake by plants through mycorrhizal processes. In this article, we review the main soil biological actors (microbiota, fauna and roots) and their effects on soil functioning. We review to what extent they have been included in soil models and propose which of them could be included in ecosystem models. We show that the model representation of the soil food web, the impact of soil ecosystem engineers on soil structure and the related effects on hydrology and soil organic matter (SOM) stabilization are key issues in improving ecosystem-scale soil representation in models. Finally, we describe a new core model concept (KEYLINK) that integrates insights from SOM models, structural models and food web models to simulate the living soil at an ecosystem scale.</p></article>", "keywords": ["[SDE] Environmental Sciences", "550", "Root system", "talna biota", "hydrology", "2511.06 Conservaci\u00f3n de Suelos", "Soil Organic Matter", "11. Sustainability", "Soil biota", "Biology (General)", "PSD", "info:eu-repo/classification/ddc/610", "2. Zero hunger", "Ecology", "General Neuroscience", "R", "velikosti por", "General Medicine", "04 agricultural and veterinary sciences", "2511 Ciencias del Suelo (Edafolog\u00eda)", "Root water uptake", "Pore size distribution (PSD)", "[SDE]Environmental Sciences", "8. Economic growth", "Medicine", "pedofavna", "General Agricultural and Biological Sciences", "soil fauna", "Engineering sciences. Technology", "570", "QH301-705.5", "distribucija", "Soil Science", "Genetics and Molecular Biology", "soil biota", "Soil fauna", "pore size distribution", "hidrologija", "info:eu-repo/classification/udc/630*1", "Ecosystem", "ecosystem", "ekosistem", "model", "Soil organic matter (SOM)", "15. Life on land", "SOM", "13. Climate action", "General Biochemistry", "0401 agriculture", " forestry", " and fisheries", "2508 Hidrolog\u00eda", "Hydrology", "Model"]}, "links": [{"href": "http://pure.iiasa.ac.at/id/eprint/16685/1/peerj-9750.pdf"}, {"href": "https://peerj.com/articles/9750.pdf"}, {"href": "https://pure.iiasa.ac.at/id/eprint/16685/1/peerj-9750.pdf"}, {"href": "https://pub.epsilon.slu.se/17599/1/deckmyn_g_et_al_200925.pdf"}, {"href": "https://doi.org/11250/2734105"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PeerJ", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "11250/2734105", "name": "item", "description": "11250/2734105", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/11250/2734105"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-09-09T00:00:00Z"}}, {"id": "11577/3318878", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:26:12Z", "type": "Journal Article", "created": "2019-08-25", "title": "Impacts of land use on hydrodynamic properties and pore architecture of volcanic soils from the Mexican Highlands", "description": "<?xml version='1.0' encoding='UTF-8'?><article><p>Volcanic soils are important resources because of their unique mineralogical and physical characteristics, and allophanic Andosols represent some of the world\u2019s most fertile soils. However, their unique properties can be lost when cultivated. Most soils in the Central Valley, Mexico, are derived from volcanic materials. This valley encompasses one of the largest water supply systems in the world by volume, but is affected by soil degradation and deforestation. Sustainably managing volcanic soils requires understanding how land use affects their hydrodynamic properties. Gas adsorption and mercury intrusion porosimetry, water retention curves, tension infiltrometry and X-ray tomography were used to describe pore structure characteristics. Two volcanic soils (one Andosol and one derived from indurated tuff \u2013 Tepetates), three land uses (maize monoculture, maize\u2013wheat rotation and fallow) and two horizons (Ap and A2 for maize monoculture and maize\u2013wheat rotation) were studied. Tillage affected topsoil by increasing the sand fraction by 38% and decreasing total porosity and macroporosity by 23% and 40% respectively. Macropore size was reduced and the number of isolated macropores was higher in the tilled layer under maize, compared with untilled subsoil. The plot under maize\u2013wheat rotation had lower allophane content, and saturated hydraulic conductivity was reduced by nearly an order of magnitude and water retention by half, compared with maize and fallow plots. Compared with Andosols, Tepetates showed differences in mineralogical composition with lower contents of amorphous compounds and in its porous network characteristics with twice the total and percolating macroporosity compared with the maize plot. Its high content of organic carbon (3.5%) seemed beneficial for its hydrodynamic properties. Sustainable agricultural management of these volcanic soils requires reducing mechanised tillage, avoiding periods when soil is bare, not applying maize\u2013wheat rotation and applying maize\u2013fallow rotation allowing natural vegetation growth.</p></article>", "keywords": ["2. Zero hunger", "550", "[SDE.MCG]Environmental Sciences/Global Changes", "04 agricultural and veterinary sciences", "15. Life on land", "630", "6. Clean water", "12. Responsible consumption", "[SDE.MCG] Environmental Sciences/Global Changes", "pore size distribution", "13. Climate action", "Andosol; pore size distribution; X-ray tomography", "0401 agriculture", " forestry", " and fisheries", "X-ray tomography", "Andosol"]}, "links": [{"href": "https://doi.org/11577/3318878"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "11577/3318878", "name": "item", "description": "11577/3318878", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/11577/3318878"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-08-26T00:00:00Z"}}, {"id": "2034733356", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:26:45Z", "type": "Journal Article", "created": "2015-04-27", "title": "Application of smoothed particle hydrodynamics (SPH) and pore morphologic model to predict saturated water conductivity from X-ray CT imaging in a silty loam Cambisol", "description": "20 This study aims to estimate saturated hydraulic conductivity in a silty loam soil and compare modelled data with 21 experimental ones. The flow characteristics of twelve undisturbed soil cores (5 cm in diameter \u00d7 6 cm high) were 22 measured in the laboratory after performing X-ray computed microtomography (microCT) analysis. MicroCT 3D 23 imaging was integrated with an existing pore morphologic model and a numerical simulation based on mesh-24 free smoothed particle hydrodynamics (SPH) to calculate the water flow through the macropore network 25 (pores N 40 \u03bcm). Results showed that the proposed SPH method was able to predict hydraulic conductivity of 26 large-sized samples as falling in the range of the experimental ones. By contrast the morphologic model generally 27 underestimated the water flow and was slightly affected by the pore shape. Increasing microCT imaging resolu-28 tion and expanding the variability with other soil types will improve the understanding of the role of micropore 29 size and morphology on water conductivity. 30", "keywords": ["2. Zero hunger", "550", "[ SDV.SA.SDS ] Life Sciences [q-bio]/Agricultural sciences/Soil study", "0207 environmental engineering", "600", "04 agricultural and veterinary sciences", "02 engineering and technology", "Pore size distribution", "[ SDE.IE ] Environmental Sciences/Environmental Engineering", "Saturated hydraulic conductivity", "Soil structure", "0401 agriculture", " forestry", " and fisheries", "[ SDU.STU.HY ] Sciences of the Universe [physics]/Earth Sciences/Hydrology", "X-ray computed microtomography"]}, "links": [{"href": "https://doi.org/2034733356"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2034733356", "name": "item", "description": "2034733356", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2034733356"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-10-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Pore+size+distribution&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Pore+size+distribution&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Pore+size+distribution&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Pore+size+distribution&offset=9", "hreflang": "en-US"}], "numberMatched": 9, "numberReturned": 9, "distributedFeatures": [], "timeStamp": "2026-05-31T06:54:24.447953Z"}