European Journal of Soil Science最新文献

{"title":"Effects of 20 Years of Contrasting Tillage on Distribution of Ammonia Oxidisers and Denitrifiers Within Soil Aggregates","authors":"Kristina Ocvirk,&nbsp;Sara Pintarič,&nbsp;Anton Govednik,&nbsp;Klemen Eler,&nbsp;Rok Mihelič,&nbsp;Marjetka Suhadolc","doi":"10.1111/ejss.70118","DOIUrl":"https://doi.org/10.1111/ejss.70118","url":null,"abstract":"<p>Microbial functional groups are heterogeneously distributed between soil aggregate fractions, which is strongly influenced by soil microenvironmental conditions. Intensive tillage practices disrupt soil aggregates, altering microbial niches and potentially affecting nitrogen (N) transformations, including processes leading to nitrous oxide (N₂O) emissions. This study aimed to identify linkages between soil aggregation and microbial community functional composition using field samples after 20 years of differential tillage management: conventional mouldboard tillage (CT) and noninversion minimum tillage (MT). Soil properties, including soil organic carbon (SOC) and the abundance of total bacterial, archaeal and fungal communities and N-functional guilds, were examined in two types of samples: (i) bulk soil and (ii) soil aggregates within three soil fractions: large macroaggregates (4–8 mm), mid-sized macroaggregates (2–4 mm) and small macroaggregates (&lt; 2 mm) in relation to tillage system and soil depth. Our results revealed that MT led to an accumulation of SOC in the upper 0–10 cm of bulk soil. At the same depth, the mid-sized and small macroaggregates exhibited significantly higher SOC content compared to the large macroaggregates. While the mean diameter of aggregates did not significantly change under MT compared to CT, the stability of aggregates improved significantly compared to CT in both observed fractions (1–2 and 2–4 mm) at both depths (0–10 and 10–20 cm). Total bacterial, archaeal and fungal communities' abundance was significantly higher under MT than in CT. Among aggregate size fractions, the highest abundance of total bacteria and fungi was observed in the smallest macroaggregate fraction in the topsoil of MT. Nitrifier and denitrifier communities were more abundant under MT in the 0–10 cm soil layer than in CT and decreased with increasing sampling depth. Among the N-functional genes examined, our results indicated a trend towards higher abundances of bacterial <i>amoA</i> and <i>nosZI</i> genes in small macroaggregates within the MT 0–10 cm layer. AOA/AOB and <i>nosZI</i>/<i>nosZII</i> ratios increased with depth within MT, indicating tillage-specific niche differentiation as a result of changed environmental conditions. Overall, our findings suggest that MT influences aggregate stability and the abundance of N-cycling guilds but does not significantly alter their distribution across different soil macroaggregate size fractions.</p>","PeriodicalId":12043,"journal":{"name":"European Journal of Soil Science","volume":"76 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ejss.70118","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of LUCAS and Italian Sampling Procedures for Harmonising Physicochemical and Biological Soil Health Indicators","authors":"Sara Del Duca,&nbsp;Elena Tondini,&nbsp;Francesco Vitali,&nbsp;Erica Lumini,&nbsp;Adriano Garlato,&nbsp;Ialina Vinci,&nbsp;Elisa Tagliaferri,&nbsp;Stefano Brenna,&nbsp;Silvia Motta,&nbsp;Emile Maillet,&nbsp;Antonio Bispo,&nbsp;Alberto Orgiazzi,&nbsp;Arwyn Jones,&nbsp;Stefano Mocali,&nbsp;Maria Fantappiè","doi":"10.1111/ejss.70108","DOIUrl":"10.1111/ejss.70108","url":null,"abstract":"<p>Comparability of soil data derived from different sources is crucial to obtain consistent results when evaluating the soil health status. Discrepancies may arise due to various factors, including uncertainties resulting from different sampling methods. In this study, we compared various soil Physicochemical properties (ST)—pH, organic carbon, texture, cation exchange capacity, nutrients, heavy metals—and microbial diversity (BIO) of samples collected following both the LUCAS Soil (performed by the European Commission Joint Research Centre, JRC) and the Italian (performed by two regional agencies) procedures. The aim was to evaluate the effect of applying different soil sampling protocols on ST and BIO data. Soil samples from 58 LUCAS Soil 2022 sampling sites located in northern Italy were collected following both sampling protocols. Data obtained from ST analyses highlighted that the LUCAS and Italian protocols are comparable for most of the soil properties. Nevertheless, results can differ significantly depending on the parameter being considered, as evidenced by the concordance index varying from 0.37 to 1. Concerning BIO analyses, although the investigation of the microbial diversity indicators did not show a good concordance between the two sampling strategies, an analysis of the community structure highlighted a good correlation (Pearson's <i>R</i> &gt; 0.6). An effect of the different land cover was observed for both ST and BIO analyses, suggesting that this could be a parameter to be considered when combining soil data obtained by different sampling protocols. Also, fungal communities showed lower concordance between LUCAS and Italian samples, highlighting a higher heterogeneity and a minor replicability with respect to bacteria and ST soil properties. In conclusion, this comparison generally showed consistency among the two sampling methods, suggesting that an integration of data from different sources is indeed possible for most of the parameters being analysed. However, further research is needed to obtain a sufficient level of harmonisation between LUCAS Soil and Italian sampling procedures for those soil properties for which a significant discordance was found.</p>","PeriodicalId":12043,"journal":{"name":"European Journal of Soil Science","volume":"76 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ejss.70108","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144066054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancing Soil Compaction Assessment: A Comprehensive Study in Ireland","authors":"Vajihe Shahrokh,&nbsp;Giulia Bondi,&nbsp;Alan Fahy,&nbsp;Lilian O'Sullivan","doi":"10.1111/ejss.70122","DOIUrl":"https://doi.org/10.1111/ejss.70122","url":null,"abstract":"<p>Soil degradation is a substantial threat to agricultural productivity and ecosystem service provision across Europe. However, the nature of soil degradation varies across spatial scales, with considerable regional disparities observed amongst individual member states. In Ireland, soil compaction represents a significant soil threat, imposed by the country's environmental conditions, inherent soil characteristics and prevailing land management practices. Despite being a widely recognised issue, this study presents the first Indicative Soil Compaction map for Ireland. The map helps to inform strategic management practices to mitigate soil compaction at regional scales. We utilise a dual indicator approach, with soil bulk density serving as an indicator of compaction and soil moisture deficit and trafficable days as an indicator of environmental conditions. This integrated approach provides an assessment of soil compaction at soil association level. Our findings reveal that compaction is high in Ireland, although its degree varies geographically across the country, influenced by management practices and intrinsic soil properties. High bulk density soils are found to dominate the country, particularly in the east and southeast of Ireland, indicating a high degree of soil compaction. Whilst much of central Ireland is characterised by moderate compaction, it is imperative to implement good management practices in both moderate and high bulk density soils to prevent further compaction. It is evident that management practices (e.g., intensive arable farming) have a potentially overriding effect compared to intrinsic soil susceptibility to compaction, which is apparent across the southeast of Ireland. This research now provides a valuable tool for developing targeted regional strategies to manage and reduce soil compaction, aligning with broader European Union ambitions to achieve healthy soils by the year 2050.</p>","PeriodicalId":12043,"journal":{"name":"European Journal of Soil Science","volume":"76 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ejss.70122","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating and Improving the Performance of the Models Underlying the Soil Navigator Tool on Drained Peat Grasslands","authors":"Clarisse T. Kraamwinkel,&nbsp;Sarah C. Feron,&nbsp;Carmen Vazquez Martin,&nbsp;Rachel E. Creamer,&nbsp;Anne Beaulieu,&nbsp;Wytse de Haan,&nbsp;Yizan Li,&nbsp;Ruth A. Howison","doi":"10.1111/ejss.70117","DOIUrl":"https://doi.org/10.1111/ejss.70117","url":null,"abstract":"<p>The Soil Navigator Tool is a decision support system designed for farmers and advisors to assess the capacity of a selected field to perform five soil functions: primary productivity (PP), water regulation (WR), habitat provision (HP), climate regulation (CR), and nutrient cycling (NC). The original tool was developed and validated primarily with mineral soils as the focus. In this paper, we tested and updated the underlying models of the Soil Navigator Tool for the context of drained peat grasslands. The performance of both the original and updated models was evaluated using input and validation data originating from 30 peat grasslands situated in the north of the Netherlands, managed either as semi-natural grassland, organic production grassland, or conventional production grassland. For PP, only minor changes were made to the original model. Both versions produced reasonable assessments with respect to yield. For WR, the sub-function Water Storage (WS) was updated, yielding scores that are more in line with soil moisture measurements from these drained peat grasslands. Only minor changes were applied to the original model of HP. As a result, the performance improved on conventional production grasslands, but the model still struggles to accurately assess semi-natural grasslands. For CR, major changes were applied to the sub-function carbon sequestration (CS) to accurately represent carbon cycling on drained peat. The updated version produced more reasonable outcomes than the original, especially on conventional production and semi-natural grasslands. Despite major changes to the original model of NC, both versions performed poorly, suggesting the need for a completely new model with a depth and time component to accurately account for peat oxidation. Our outcomes suggest that the updated models generally produce more reasonable outcomes than the original models on drained grassland peat. However, more research to further improve and validate the updated models is needed, with a particular focus on NC, before the use of the Soil Navigator Tool on drained grassland peat by farmers or researchers is recommended.</p>","PeriodicalId":12043,"journal":{"name":"European Journal of Soil Science","volume":"76 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ejss.70117","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Agricultural Cultivation Improved Soil Nitrogen Sequestration by Accelerating the Accumulation of Labile Nitrogen","authors":"Shu Liu,&nbsp;Junhua Zhang,&nbsp;Guodong Li,&nbsp;Ran Wang,&nbsp;Xixi Sun,&nbsp;Shengxin Wang,&nbsp;Jingting Qin","doi":"10.1111/ejss.70119","DOIUrl":"https://doi.org/10.1111/ejss.70119","url":null,"abstract":"<div>\u0000 \u0000 <p>Soil organic nitrogen (SON), particularly its labile fraction (LN), is pivotal in nutrient supply and soil fertility maintenance. However, the retention mechanisms of LN under low-nitrogen conditions in conservation agriculture remain unclear. This study, conducted in the Yellow River sedimentary area, applied SON functional fractionation (labile vs. stable pools) and a coupled analytical framework of soil particle composition, enzyme activity, and management practices to explore the vertical differentiation of LN under different land-use types. Results showed that LN content was greater in agricultural soils (381.36–467.85 mg/kg), primarily driven by elevated activities of invertase and alkaline phosphatase. Silt (&lt; 50 μm) improved the efficiency of stable nitrogen (SN) sequestration through organic-mineral bonding, while sand particles (&gt; 250 μm) led to increased LN leaching flux. Integrated fertilisation improved LN availability and SN stability through dual C<span></span>N interactions and enzyme activation pathways. These findings highlight LN's ‘rapid response, high loss’ behaviour in sandy soils and offer a scientific basis for organic nitrogen regulation in fragile agroecosystems.</p>\u0000 </div>","PeriodicalId":12043,"journal":{"name":"European Journal of Soil Science","volume":"76 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction to “Cover Crops Affect Pool Specific Soil Organic Carbon in Cropland—A Meta-Analysis”","authors":"","doi":"10.1111/ejss.70114","DOIUrl":"https://doi.org/10.1111/ejss.70114","url":null,"abstract":"<p>Fohrafellner, J., K. M. Keiblinger, S. Zechmeister-Boltenstern, R. Murugan, H. Spiegel, and E. Valkama. 2024. “Cover Crops Affect Pool Specific Soil Organic Carbon in Cropland–A Meta-Analysis.” <i>European Journal of Soil Science 75</i>, no. 2: e13472. https://doi.org/10.1111/ejss.13472.</p><p>The authors would like to report errors in the original version of the article. On page 10, 3rd paragraph, “(−28% or lnR = −0.33)” should have read “(−3% or lnR = −0.033).” Further, on page 13, 3rd paragraph, “(24% or lnR = 0.22)” should have read “(17% or lnR = 0.16)” and “(11% or lnR = 0.10)” should have read “(8% or lnR = 0.07).”</p><p>These changes do not affect the main results or conclusions of the article. The authors would like to apologize for any inconvenience caused.</p>","PeriodicalId":12043,"journal":{"name":"European Journal of Soil Science","volume":"76 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ejss.70114","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of Soil Science in European Higher Education to Meet Growing Soil Awareness Needs","authors":"Ana Villa,&nbsp;Erik Fahlbeck,&nbsp;Jennie Barron","doi":"10.1111/ejss.70112","DOIUrl":"https://doi.org/10.1111/ejss.70112","url":null,"abstract":"<p>Humanity is facing a number of global challenges coupling soils and essential ecosystems, biodiversity, food production, and climate change. Hence, knowledge and expertise in soil science and soil management are increasingly needed to address these issues for sustainability and development. Soil science in higher education (HE) will be one essential vehicle to provide a new generation with skills and expertise. The aim of this study was to assess the current state of soil science in European higher education by assessing the existing degrees offered, teaching and learning approaches (TLAs) used, and exploring collaborations in internationalisation among higher education institutions (HEIs) in Europe. A survey was conducted in 2020–2021 and 94 responses were received from HEIs teaching soil science in 25 European countries. Results showed that only 16% of HEIs hosted a dedicated soil science department. In most cases, soil science was embedded in departments with other academic topics, mainly environmental sciences and agronomy. Full degree programs in soil science were offered in 28% (BSc), 37% (MSc) and 37% (PhD) of the HEIs (<i>N</i> = 75). Regarding internationalisation of HEIs, only 6% responded that they had international joint programs in place at all levels of education. Twenty-five HEIs (37%) expressed aspirations to establish international programs while 24 (35%) saw no need for joint programs. The top three priorities among the HEIs were to attract students from abroad, develop strategic research partnerships, and provide more opportunities to send students abroad. Traditional lectures dominated TLAs in most soil science courses, especially at BSc level, where 40% of the HEIs responded that more than half of a soil course is delivered as lectures. Several respondents claimed curricula had not changed significantly in the last 5 years. Computer/modelling was either not included or included as a small share in teaching according to 96% (BSc) and 98% (MSc) of the HEIs. We conclude based on the sample, soil science at European HEIs appears conservative, but with scope to strengthen to deliver better soil science expertise for the future. More diverse TLAs and updated teaching materials are needed to provide the next generation of experts with the skills needed to address local and global sustainability challenges related to soils.</p>","PeriodicalId":12043,"journal":{"name":"European Journal of Soil Science","volume":"76 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ejss.70112","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143900943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of a National Soil Dataset Across Productive Land in Mexico: The Importance of Making Existing Data Accessible","authors":"Carlos E. Arroyo-Cruz,&nbsp;Blanca Prado,&nbsp;Melanie Kolb,&nbsp;Lucy Natividad Mora-Palomino,&nbsp;Katherine Todd-Brown,&nbsp;Mario Guevara","doi":"10.1111/ejss.70116","DOIUrl":"https://doi.org/10.1111/ejss.70116","url":null,"abstract":"<p>The lack of soil data is a complication that most soil scientists will encounter throughout their career; this critical aspect is exacerbated due to the excessive cost of soil surveying. Consequently, it is essential to develop strategies that guarantee the permanent accessibility of past soil sampling efforts. The main objective of this contribution is to release an entire dataset of soil samples surveyed by the Secretary of Agriculture, Livestock, Rural Development, Fisheries, and Food (SAGARPA) in collaboration with the Food and Agriculture Organization of the United Nations (FAO) in the year 2012. The dataset consists of more than 4000 compound samples surveyed on managed cropland. SAGARPAS's main objective was to generate a new index to assess and monitor the current and future state of soil when sustainable soil practices take place. A complete set of physicochemical properties was determined via laboratory analysis for all records in the dataset, namely: pH, EC, OM, BD, Sand, Silt, Clay, Texture, P, N, K, Ca, Mg, Na, CEC, Sodium Adsorption Ratio (SAR), Exchangeable Sodium Percentage (ESP), and including the calculation of the Sustainable Soil Land Use Subindex (SSLUS). We presented a reviewed dataset with the potential to contribute to a large variety of studies, ranging from agricultural pinpointing of the best conditions for crop production to digital soil mapping and modeling and agronomical studies. An additional key element of any data publishing effort is the promotion of adequate archival and mirroring practices by defining official servers that guarantee accessibility and safety of the information.</p>","PeriodicalId":12043,"journal":{"name":"European Journal of Soil Science","volume":"76 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ejss.70116","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143900942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acid Sulfate Soils and Their Impact on Surface Water Quality: A Case Study in Southeast Brazil","authors":"Francis Henrique Tenório Firmino,&nbsp;João Carlos Ker,&nbsp;Maurício Paulo Ferreira Fontes,&nbsp;Hidelbandi Farias de Melo,&nbsp;Jaime Wilson Vargas de Mello,&nbsp;Luiz Felipe Mesquita","doi":"10.1111/ejss.70115","DOIUrl":"https://doi.org/10.1111/ejss.70115","url":null,"abstract":"<p>Re-flooding of previously drained and oxidised acid sulfate soils (ASSs) can stimulate reduction processes while decreasing soil acidity, thereby mitigating the harmful effects of acidity. The aim of this study is to explore the pedogenesis of ASSs in a tropical climate and to assess the impact of ASS on surface water quality at the end of the seasonal re-flooding period. An integrated study of soil, water and sediment was carried out in an area in the Doce River Delta, Espírito Santo state, Brazil. The results indicate that seasonal re-flooding restores reduction processes of inorganic species in soils, but with low proton consumption. Re-flooding results in the preservation of chemical characteristics resulting from sulfurization, as verified mainly in pH values lower than 4.0, characterising ASSs with a thionic horizon. The maintenance of acidic conditions is strongly influenced by the complexation of exchangeable acidity, as well as the acidity retained in Fe hydroxysulfates, both generated in the sulfurization process. As a result, the activity of sulfate-reducing microorganisms is limited, restricting proton consumption through reductive dissolution of minerals containing Fe³⁺, supplying iron and other potentially toxic elements to the acidic soil solution. Drainage and impact of these soils are shown by the deterioration of the surrounding surface water quality at the end of the wet period, with high concentrations of acidity, sulfate and potentially toxic elements. The acidic and reduced conditions accentuate iron exports that precipitate onto bottom sediments, which is an important scavenger of potentially toxic elements. This in situ study concludes that the remediation efficiency of ASSs exposed to oxidising conditions through seasonal re-flooding is dependent on the degree of sulfurization of soil, and that aggravating effects of re-flooding can be observed in the surrounding surface water.</p>","PeriodicalId":12043,"journal":{"name":"European Journal of Soil Science","volume":"76 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ejss.70115","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Parameter Estimation of Soil Water Retention and Thermal Conductivity Curves Using HYDRUS-1D and Inverse Solution","authors":"Ashkan Tehrani,&nbsp;Abdolmajid Liaghat,&nbsp;Reza Delbaz","doi":"10.1111/ejss.70095","DOIUrl":"https://doi.org/10.1111/ejss.70095","url":null,"abstract":"<p>Soil water retention curve (SWRC) and thermal conductivity curve (TCC) are crucial soil properties affecting water flow and plant growth in soils. This study investigated simultaneous SWRC and TCC parameter estimation using an inverse solution approach. Water and heat movement in soil were modelled in two soil column experiments, including infiltration with warm water (IWW) and evaporation with heat pulse (EHP), using the HYDRUS-1D package. For the IWW experiment, two scenarios were considered, each based on a selection of parameters for the inverse solution. For the EHP experiment, 13 scenarios were developed by varying combinations of heat pulses and soil suction sensors as inputs. Unique solutions were obtained in the first IWW, fifth EHP, and 12th EHP scenarios. The first IWW scenario estimated two SWRC parameters (empirical shape parameters, <i>α</i> and <i>n</i>) and three TCC parameters (empirical parameters in soil thermal conductivity function, <i>b</i>₁, <i>b</i>₂ and <i>b</i>₃) using the temperature profile and cumulative infiltration as inputs. The fifth EHP scenario estimated five SWRC parameters (saturated [<i>θ</i>_s] and residual [<i>θ</i>_r] water content, saturated hydraulic conductivity <i>K</i>_s, <i>α</i> and <i>n</i>) and three TCC parameters (<i>b</i>₁, <i>b</i>₂ and <i>b</i>₃) using three heat pulses and four tensiometers data as input to the model. The results showed both experiments could estimate SWRC and TCC, with EHP estimating up to eight parameters compared to five for IWW. The 12th EHP scenario (two heat pulses and two tensiometers) provided a unique solution using less input data, offering a more convenient approach, though with slightly wider bounds of estimated parameters.</p>","PeriodicalId":12043,"journal":{"name":"European Journal of Soil Science","volume":"76 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ejss.70095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143889167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}