Geoderma Regional最新文献

{"title":"Corrigendum to ‘Mapping sub-surface distribution of soil organic carbon stocks in South Africa's arid and semi-arid landscapes: Implications for land management and climate change mitigation’ [Geoderma Regional Volume 37, 2024, e00817]","authors":"Omosalewa Odebiri , Onisimo Mutanga , John Odindi , Rob Slotow , Paramu Mafongoya , Romano Lottering , Rowan Naicker , Trylee Nyasha Matongera , Mthembeni Mngadi","doi":"10.1016/j.geodrs.2025.e01019","DOIUrl":"10.1016/j.geodrs.2025.e01019","url":null,"abstract":"","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01019"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145684585","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":"Response of soil nutrient losses to erosion-deposition processes and land use managements: A case study in southeastern Tigray of northern Ethiopia","authors":"Araya Kahsay,&nbsp;Selama Gebreslassie Yebyo,&nbsp;Yohannes Gerezihier Gebremedhin","doi":"10.1016/j.geodrs.2025.e01032","DOIUrl":"10.1016/j.geodrs.2025.e01032","url":null,"abstract":"<div><div>Soil erosion is one of the major degradation processes posing far-reaching threats to production sustainability and food security, associated with its marked contribution to soil quality degradation. There have been substantial studies on nutrient losses by erosion in Ethiopia, but rarely have the redistribution/deposition process been considered. In this study, we compared soil and nutrient loss of shrublands, grasslands and croplands to examine their sensitivity to erosion and deposition and land use managements. Quantification of soil erosion and deposition was achieved through Unit Stream Power Soil Erosion and Deposition model. Furthermore, soil organic carbon (SOC), total nitrogen (TN) and available phosphorus (AP) concentrations of the three land use managements were measured and analyzed to 30 cm depth. The results exhibited that soil and nutrient loss and their associated cost were heavily explained by variations in land use management. The magnitude of soil eroded far exceeded that of deposited in croplands and grasslands, while it was almost comparable to deposition rate in shrublands. Nutrient stocks in shrublands were higher than those in grasslands and croplands. Land use contributions to nutrient loss showed the orders of grasslands (4.22 Gg) &gt; croplands (3.91 Gg) &gt; shrublands (0.71 Gg). Out of the total nutrients transported by erosion (i.e. 16.78 Gg), ca. 47.47 % (7.96 Gg) is left redistributed within the area through deposition, with the remaining 8.81 Gg (52.53 %) leaving the area. Nutrient loss due erosion is causing to an average annual economic loss of about 7.95 million US$, &gt; 90 % of which is contributed by grasslands and croplands, while that shared by shrublands was relatively small. Results implied the importance to consider erosion and deposition processes while assessing soil and nutrient depletion to precisely assess economic implications of erosion. Grasslands and croplands are more prone to erosion than shrublands, emphasizing the need to consider for improved cultivation and grazing managements to monitor soil quality degradation induced through erosion.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01032"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145617856","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":"Changes in land use and buffaloes trampling effects on soil health in environmentally vulnerable areas of an Atlantic Forest biome in southern São Paulo State, Brazil","authors":"Rodrigo Batista Pinto ,&nbsp;Francisca Alcivania de Melo Silva ,&nbsp;Heitor Marcel da Silva Ribeiro ,&nbsp;Pedro Henrique de Oliveira Vilela ,&nbsp;Rafael Duarte L'Abbate ,&nbsp;Fabiana Gomes da Silva ,&nbsp;Diogenes L. Antille ,&nbsp;Zigomar Menezes de Souza ,&nbsp;Reginaldo Barboza da Silva","doi":"10.1016/j.geodrs.2025.e01011","DOIUrl":"10.1016/j.geodrs.2025.e01011","url":null,"abstract":"<div><div>This study was conducted to determine the impact of land use and livestock farming on riparian areas in the state of São Paulo, Brazil. A range of physical, hydraulic and chemical properties were measured in hydromorphic soils under four scenarios; namely: i) native vegetation (NV), ii) semi-extensive grazing (SEG, ∼21 animal units ha⁻¹) with 30 years of established practice; iii) intensive grazing with 20 years of established practice (IG20, ∼24 animal units ha⁻¹); and iv) intensive grazing after 1 year of being implemented (IG1, ∼21 animal units ha⁻¹). The replacement of native vegetation with pastures, regardless of the duration and type of management, resulted in significant changes in soil structure and soil functioning, due to increased bulk density and penetration resistance, and concurrent reductions in macroporosity and saturated hydraulic conductivity. The soil under long-term intensive management (IG20) showed less structural degradation, closely resembling the conditions observed in the native vegetation area (NV). By contrast, the soil under semi-extensive grazing (SEG) management exhibited significant damage to the soil structure, which affected all measured soil physical and hydraulic properties. Despite these negative impacts on soil structure, SEG exhibited higher levels of total carbon, total nitrogen, and total sulfur. The results suggested that the intensive management system (IG20) tended to maintain higher soil quality in riparian areas than the condition observed under native vegetation, although these differences cannot be exclusively ascribed to grazing.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01011"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222460","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":"Pedotransfer-based bulk density: An alternative approach to enable soil carbon accounting in grain regions of Brazil","authors":"Ruan Carnier,&nbsp;Alfredo José Barreto Luiz,&nbsp;Joaquim Ernesto Bernardes Ayer,&nbsp;Nilza Patrícia Ramos,&nbsp;Sandra Furlan Nogueira,&nbsp;Cristiano Alberto de Andrade","doi":"10.1016/j.geodrs.2025.e01017","DOIUrl":"10.1016/j.geodrs.2025.e01017","url":null,"abstract":"<div><div>Soil bulk density (BD) is a critical variable in the estimation of carbon (C) stocks, which are central to agriculture-based C projects. However, field sampling of BD is often labor-intensive and costly. Pedotransfer functions (PTFs), which estimate BD from easily measured soil attributes, provide a promising alternative. This study evaluated 6941 observations from plots under grain production (GR) and 1246 from native vegetation (NV), sampled down to 1 m depth across 47 farms in the South-Central region of Brazil. Each observation included BD and the contents of sand, silt, clay, and C. Thirty-three PTFs from the international literature were tested, and four new ones (F34, F35, F36, F37) were developed. Function performance was assessed using the correlation coefficient (r), function efficiency (FE), mean error (ME), and root mean square error (RMSE). Two literature-based PTFs and the four developed in this study achieved the best performance, with RMSE ranging from 0.11 to 0.20 and ME from −0.01 to 0.09. Among them, F36 and F37 showed the strongest predictive ability, with FE values of 0.41 and 0.66 and r of 0.74 and 0.81, respectively. Carbon stocks estimated from BD predicted by the selected PTFs were strongly correlated with measured stocks (<em>r</em> &gt; 0.90), demonstrating that these functions are reliable alternatives to direct BD measurements for estimating C stocks. For conservative application in C projects, function F37 is recommended for layers below 30 cm, while BD should continue to be directly measured in shallower layers, where management practices exert stronger influence.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01017"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270233","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":"Brazilian Latossolos (Ferralsols, Oxisols) from different biomes: a multiproxy study on the spatial variability of the most weathered tropical soils in South America","authors":"Carlos Ernesto Gonçalves Reynaud Schaefer ,&nbsp;Rafael Gomes Siqueira ,&nbsp;Luís Flávio Pereira ,&nbsp;Lucas de Carvalho Gomes ,&nbsp;Pedro Henrique Araújo Almeida ,&nbsp;Márcio Rocha Francelino ,&nbsp;Francis Henrique Tenório Firmino ,&nbsp;José João Lélis Leal de Souza ,&nbsp;João Carlos Ker ,&nbsp;Elpídio Inácio Fernandes-Filho","doi":"10.1016/j.geodrs.2025.e01012","DOIUrl":"10.1016/j.geodrs.2025.e01012","url":null,"abstract":"<div><div>The Brazilian Latossolos (Ferralsols-WRB, Oxisols-Soil Taxonomy) are generally well-drained soils, strongly and deeply altered, rich in Al and Fe oxyhydroxides, nutrient-poor and morphologically uniform, due to long-term weathering and continuous leaching. Despite the occurrence in all Brazilian territory, little is known about the variability of basic attributes of Latossolos across the country. We hypothesize that the Brazilian Latossolos present a considerable variability in soil attributes that can be regionally manifested and traced according to the environmental characteristics of different Brazilian biomes. In this way, we compared a suite of soil attributes from Latossolos Amarelos, Latossolos Vermelho-Amarelos and Latossolos Vermelhos from the biomes Amazonia, Atlantic Forest, Cerrado, and Caatinga biomes, using robust legacy data produced by published soil surveys. The Latossolos Vermelhos represent the suborder with the greatest degree of weathering, exhibiting the highest contents of Fe and Al oxyhydroxides, clayey texture, greatest microaggregate development, pH and base saturation, and presenting the lowest contents of available P. Conversely, the Latossolos Amarelos exhibited the highest contents of kaolinite, silt, sand, and the highest soil consistency and Al saturation. The Latossolos Vermelho-Amarelos, in turn, presented intermediate characteristics, confirming that soil color is a key attribute for differentiating the pedogenetic development of Latossolos, regardless of the biome. With reference to the Brazilian biomes, the Latossolos of the Cerrado and Atlantic Forest presented the greatest weathering degree, evidenced by the lowest values of Ki, Kr, and silt/clay ratios, as well as other characteristics that reveal the great intensity of desilication, ferralitization, gibbsitization and pedalization. Despite the hot and wet equatorial climate and the general soil acidity in Amazonia, Amazonian Latossolos presented lower pedogenetic development than the Cerrado and Atlantic Forest soils, which are in close association with the sedimentary parent material, resilication by forest Si cycling, subdued topography and poor soil internal drainage. The Latossolos from the semi-arid Caatinga showed the lowest weathering and pedogenesis degrees, and represent relict soils from past wetter climates, preserved in the only Brazilian semi-arid biome.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01012"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222368","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":"An Observations Framework for data interoperability: Enabling descriptive regional data for soil and land management in the Australian context","authors":"M. Wong ,&nbsp;B. Simons ,&nbsp;H. Gillett ,&nbsp;N.J. Robinson ,&nbsp;A. Neyland ,&nbsp;P. Dahlhaus ,&nbsp;A. MacLeod ,&nbsp;H. Thompson","doi":"10.1016/j.geodrs.2025.e01029","DOIUrl":"10.1016/j.geodrs.2025.e01029","url":null,"abstract":"<div><div>Regional resource management organisations and researchers require consistent soil data for effective knowledge transfer and monitoring. However, the data collected by soil practitioners can fall outside the data permissible in national and international interoperability efforts. This study fills a gap by delivering diverse data from farming groups, catchment managers, and university researchers via a unique ‘Observations Framework’ based on the observation and measurement (O&amp;M) standard, not implementing soil domain model constraints.</div><div>One hundred and sixty-five individual soil properties were successfully described, resulting in the delivery of interoperable, region-specific soil data. A significant amount of data fell outside existing national soil model implementations, with only 30 % of chemical observation procedures related to the Australian Soil and Land Survey Handbook Series (ASLSH) standard, and 38 % lacking procedure descriptions altogether. Procedures for soil physics and biology measurements entirely outside the ASLSH. Contextual information, including sampling protocol, was generally absent or challenging to align with FAIR (Findable, Accessible, Interoperable, and Reusable) vocabularies.</div><div>Concluding lessons for delivering diverse regional FAIR soil data include the need to 1) Support standard metadata schema framework for FAIR soil data, understanding the value of context and data quality elements to end-users; 2) Develop and support well-governed FAIR vocabularies for soil through expert and community input, particularly on properties and sampling; and 3) Investigate the potential for AI in the delivery of soil data and information, including where graph technology and domain models may be beneficial, and where soil domain expertise is critical.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01029"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145684584","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":"Impact of long-term use of fertilizers on soil phosphorus fractions and its uptake","authors":"Palwinder Singh,&nbsp;Gurmeet Singh Dheri,&nbsp;Gazala Nazir,&nbsp;Sukhpreet Singh","doi":"10.1016/j.geodrs.2025.e01021","DOIUrl":"10.1016/j.geodrs.2025.e01021","url":null,"abstract":"<div><div>Understanding the dynamics and transformation of soil phosphorus (P) is imperative for formulating sustainable agricultural P management strategies. This study examined the long-term impacts (over 52 cropping cycles) of various fertilization regimes on P dynamics in Inceptisol (Typic Ustochrept) and the associated productivity of the maize-wheat cropping system. The fertilizer treatments involved: T1) control, T2) 50 % NPK, T3) 100 % NPK (120:26.5:25.0 kg ha⁻¹, N:P:K), T4) 100 % NPK, T5) 150 % NPK, and T6) 100 % NPK + farmyard manure (FYM @10,000 kg ha⁻¹), implemented in a randomized block design with three replicates. The source of P was single super phosphate, except T4 (diammonium phosphate). The results highlight a significant accumulation of P under continuous fertilization compared to the control treatment. Olsen P in surface soil under the 100 % NPK + FYM treatment exhibited an increase of 522 % relative to the control and 108 % compared to the 100 % NPK treatment. The accumulation was characterized by varied distributions across inorganic and organic P fractions, which were influenced by the fertilizer applications. A general enhancement in P fractions was observed with fertilization, with levels ranging from a minimum under 50 % NPK to a maximum under 100 % NPK + FYM treatment. The distribution of P fractions followed the order: Ca-P &gt; Al-P &gt; Org-P &gt; Fe-P &gt; Red-P (reductant-soluble phosphate) &gt; Sol-P (soluble P). Regarding the distribution of P fractionation, an incubation study was conducted to assess the effects of organic amendments, specifically paddy straw and FYM, on P fractions at different levels of added P. The findings revealed a pronounced enhancement in P distribution into its labile fractions. The P balance sheet indicated a net positive soil P balance following 52 cropping cycles under varied fertilization except control. Additionally, correlations between soil P fractions and crop yield were calculated. These findings necessitate further investigation to refine P management strategies to optimize the utilization of residual P for sustainable crop production.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01021"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145324976","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":"Modeling archaeological excavation-induced soil erosion in cultural heritage landscapes: A QGeoWEPP-based assessment at the Resuloğlu Mound, Türkiye","authors":"Kemal Koçaklı ,&nbsp;Chris S. Renschler ,&nbsp;Dennis C. Flanagan ,&nbsp;Ryan P. McGehee ,&nbsp;Jonathan M. Harbor ,&nbsp;Bülent Arıkan ,&nbsp;Orkan Özcan","doi":"10.1016/j.geodrs.2025.e01018","DOIUrl":"10.1016/j.geodrs.2025.e01018","url":null,"abstract":"<div><div>This study investigates how archaeological excavations influence runoff processes and soil erosion in a rangeland-dominated cultural landscape in North Central Anatolia, Türkiye. The Resuloğlu Mound, an archaeological settlement dating to the Early Bronze Age III period (c. 2300–2100 BCE), underwent excavations between 2003 and 2019. The site's current morphology indicates that soil erosion has significantly shaped the landscape throughout both ancient and modern periods. Assessing these landscape changes is essential for evaluating the long-term sustainability of archaeological sites, as soil erosion not only compromises the integrity of cultural heritage but also influences surrounding ecosystems and agricultural productivity.</div><div>This research employs an interdisciplinary approach to analyze natural hazards, including climate and weather pattern variability, and anthropogenic disturbances, within the context of immovable cultural heritage preservation and soil and water conservation in an agricultural rangeland landscape. Using a spatially explicit modeling framework, we investigate the interactions among land use, climate and weather pattern variability, and the complex dynamics of natural and human-induced processes within an agricultural rangeland and crop management setting. The study utilized the QGIS-based geospatial interface for the Water Erosion Prediction Project (QGeoWEPP) to simulate soil erosion rates before and after archaeological excavation.</div><div>In addition, the study explores proactive strategies to immovable cultural heritage, as well as the adjacent grazing rangelands and agricultural fields, to develop an integrated protection plan for these vulnerable sites and their stakeholders. The QGeoWEPP model is applied to eight hillslopes two undisturbed reference slopes and six disturbed—along with fields of major crops, where harvest yields are used to parameterize hydrology and plant growth within the model. The findings indicate that archaeological excavation disrupts slope stability, leading to elevated erosion rates immediately after disturbance, followed by a gradual decline over time. This study contributes to the scientific foundation of conservation policies aimed at preserving both natural and cultural landscapes through collaboration with local governments.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01018"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145617857","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":"Depth-dependent responses of carbon fractions and sequestration in a maize-wheat cropping system after 51 years of long-term fertilization","authors":"Prabhsimran Singh ,&nbsp;Gurmeet Singh Dheri ,&nbsp;Gazala Nazir ,&nbsp;Amardeep Singh Toor","doi":"10.1016/j.geodrs.2025.e01031","DOIUrl":"10.1016/j.geodrs.2025.e01031","url":null,"abstract":"<div><div>Long-term fertilizer application plays a pivotal role in regulating soil carbon (C) dynamics by altering various soil C fractions. However, the response of these C fractions to long-term fertilization across the soil profile remains insufficiently explored under real-time farmland scenarios. This study evaluated the long-term impacts of organic and inorganic fertilizer application on C fractions and C sequestration to a 1 m depth over five decades (1971–2022) and compared equivalent mass and fixed depth approaches for quantifying total soil organic carbon (TSOC) stocks. Treatments included control, 100 % N, 100 % NPK, 150 % NPK, and 100 % NPK + FYM. Fertilizer applications significantly altered TSOC and its fractions relative to the control. 100 % NPK + FYM resulted in higher TSOC by 92 % over the control and 30 % over 100 % NPK, with the highest TSOC stocks (70 Mg ha⁻¹) observed in the 0–100 cm soil profile. Labile C fractions like potassium permanganate-C (KMnO4-C), water-soluble C (WSC), hot water-soluble C (HWSC), and microbial biomass C (MBC) were higher by 14–60 %, 50–176 %, 60–304 % and 31–136 % respectively in 100 % NPK + FYM. Both acid hydrolyzable C (AHC) and acid non-hydrolyzable C (ANHC) were also elevated, with the greatest increases under 100 % NPK + FYM. Labile C fractions accumulated predominantly in the topsoil (0–15 cm), whereas more recalcitrant fractions were enriched in the deeper layers. Equivalent mass-based C sequestration was 21–39 % higher in the topsoil and 5–15 % higher in the entire profile compared to fixed-depth calculations. Overall, this study provides new insights into fertilization induced deep soil C sequestration and its persistence, offering valuable implications for soil C monitoring frameworks, C farming initiatives, and sustainable soil management strategies.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01031"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145571634","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":"Soil management legacy provides resiliency to salinization: Insights of soil processes and indicators from a case study","authors":"Aaron Lee M. Daigh ,&nbsp;Umesh Acharya ,&nbsp;Bijesh Maharjan ,&nbsp;Thomas DeSutter","doi":"10.1016/j.geodrs.2025.e01034","DOIUrl":"10.1016/j.geodrs.2025.e01034","url":null,"abstract":"<div><div>While individual management practices affecting soil salinity are well-documented, empirical evidence of their combined long-term protective effects under field conditions remains limited, and critical gaps persist in understanding how soil processes confer resilience. In 2018, a salinized soybean (<em>Glycine</em> max (L) Merr.) field from a persistently high-water table provided a unique opportunity to investigate this issue. Most of the field suffered severe plant damage and death, whereas a precise rectangular area in the southeast corner sustained healthy growth. This area corresponded exactly to decommissioned research plots managed with subsurface drains, no-till, gypsum, and cover crops (soil-health-legacy managed), which were absent elsewhere in the field (conventionally managed). In 2019, soil sampling along replicated transects between dead/damaged and living/thriving plants within each zone were analyzed for salinity, fertility, aggregation, and microbial community indices. No significant difference was observed in the conventionally managed zone between damaged and living areas. Within the soil-health-legacy zone, most chemical properties (6 out of 9), some microbial indicators (5 out of 14) and no physical properties significantly differed among areas with dead, damaged, or dying plants vs areas with living plants. These findings suggest that while some soil indicators may hint at salinization risk, they lack clear thresholds for practical interpretation. Therefore, we advise producers against over-reliance on soil health indices; instead, management processes should be targeted directly. This case study demonstrates that a history of combined subsurface drainage, no-till, gypsum, and cover crops protects crops from salinization through soil processes that soil indices alone do not reveal.</div></div>","PeriodicalId":56001,"journal":{"name":"Geoderma Regional","volume":"43 ","pages":"Article e01034"},"PeriodicalIF":3.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145684677","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}