Soil & Environmental Health最新文献

{"title":"Reduction of porewater arsenic and accumulation in rice grains by novel composite membranes under flooded conditions","authors":"Qiao-Rui Ren ,&nbsp;Jing-Min Yang ,&nbsp;Xin Wang ,&nbsp;Delai Zhong ,&nbsp;Xiong-Hui Ji ,&nbsp;Bo Peng ,&nbsp;Qin-Bo Qin","doi":"10.1016/j.seh.2025.100177","DOIUrl":"10.1016/j.seh.2025.100177","url":null,"abstract":"<div><div>Reductive dissolution of As-bearing Fe-oxyhyr)oxides in paddy soils under flooded conditions can trigger mass As liberation into porewater as a primary hotspot of bioavailable As and thus favor As uptake by rice. To tackle this challenge, we fabricated a ferrihydrite-polyvinyl alcohol composite membrane to target and extract porewater As in paddy soils, aiming at decreasing As accumulation in rice grains. The treatment deploying the membranes at three depths reduced porewater As concentration by 34% and average diffusive gradients in thin-films (DGT)-measured As levels by 36% at the 0–20 ​cm soil depth relative to control. The As content in rice grains decreased by 34% accordingly. Furthermore, ammonium phosphate application not only enhanced the As extraction efficiency of the composite membranes from porewater, but also increased the oxidation percentage of AsIII on the membranes based on X-ray photoelectron spectroscopy analysis. Scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy reveals Si enrichment on ferrihydrite surfaces within the membrane under flooded conditions. This surface-bound Si effectively inhibits ferrihydrite crystallization and retards its reductive dissolution, thereby sustaining high As removal efficiency throughout extended extraction cycles. This study provides a promising remediation strategy for <em>in-situ</em> removal of porewater As in paddy soils, significantly mitigating As accumulation in rice grains.</div></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"3 4","pages":"Article 100177"},"PeriodicalIF":0.0,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145026997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combined effects of fulvic acid and phosphate on FeII oxidation and Fe precipitation","authors":"Qian Sun ,&nbsp;Yida Li ,&nbsp;Sen Li ,&nbsp;Panbo Zhao ,&nbsp;Jiali Guo ,&nbsp;Xin Lin ,&nbsp;Tingting Fan ,&nbsp;Hu Cheng ,&nbsp;Qing-Long Fu ,&nbsp;Yujun Wang","doi":"10.1016/j.seh.2025.100176","DOIUrl":"10.1016/j.seh.2025.100176","url":null,"abstract":"<div><div>The chemical transformation of ferrous Fe (FeII) under aerobic conditions is a key process governing Fe cycling in soil and is strongly influenced by coexisting constituents such as phosphate and organic matter. Transient redox fluctuations result in the simultaneous presence of FeII and O₂. However, the combined effects of phosphate and fulvic acid (FA) on FeII oxidation in the presence of O₂ and Fe precipitation remain poorly understood. In this study, we used kinetic experiments and solid-phase characterizations to unravel the underlying mechanisms. Our results demonstrate that FA impeded both FeII oxidation and Fe precipitation. This inhibition might be attributed to FeII complexation with FA and the subsequent adsorption of FA onto Fe mineral surfaces. When phosphate and FA coexisted, phosphate partially decreased the inhibitory FA effects, which is likely due to the formation of Fe hydroxyphosphate and competitive adsorption between phosphate and FA on Fe mineral surfaces. In the absence of phosphate, goethite was the predominant ferric (FeIII) product. However, phosphate addition favored the formation of lepidocrocite and Fe hydroxyphosphate. Increasing phosphate concentrations led to greater phosphate incorporation into Fe minerals. When both phosphate and FA were present, the crystallinity of lepidocrocite and Fe hydroxyphosphate decreased compared to the sole phosphate system. Overall, this study reveals that FA simultaneously inhibited FeII oxidation and Fe precipitation, and that phosphate mitigated these effects via Fe hydroxyphosphate formation and competitive interactions. These findings provide an insight into how coexisting organic and inorganic ligands regulate Fe redox kinetics and Fe precipitation, and underscore the importance of incorporating such interactions into future studies of Fe cycling under fluctuating redox conditions in soil.</div></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"3 4","pages":"Article 100176"},"PeriodicalIF":0.0,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sequestration and degradation of per- and polyfluoroalkyl substances in soil: Opportunities and challenges","authors":"Zhenyu Cao ,&nbsp;Fugen Dou ,&nbsp;Youjun Deng ,&nbsp;Xingmao Ma","doi":"10.1016/j.seh.2025.100175","DOIUrl":"10.1016/j.seh.2025.100175","url":null,"abstract":"<div><div>Per- and polyfluoroalkyl substances (PFAS) are increasingly detected in soils, posing potential risks to human health via their accumulation in food crops. Unfortunately, options for effective remediation of PFAS-contaminated soils are limited. This review provides a comprehensive analysis of recent advancements in soil remediation technologies aiming to lower PFAS bioavailability by focusing on either sequestration or <em>in situ</em> degradation. Specifically, highly effective soil amendments such as clay minerals and activated carbon are often used for PFAS immobilization. However, despite their initial effectiveness, the long-term stability of sequestered PFAS may be compromised as a result of sorbent aging and soil condition changes, leading to the potential remobilization of the sorbed PFAS. <em>In situ</em> chemical degradation including advanced oxidation and advanced reduction processes can achieve long-term PFAS removal, especially by combining with other downstream treatment technologies. However, detailed studies are still lacking. This review highlighted several urgent research needs to advance PFAS remediation in soil and proposed new approaches such as an integrated approach that combines sequestration with chemical degradation to achieve more sustainable long-term stabilization and removal of PFAS from contaminated soils.</div></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"3 4","pages":"Article 100175"},"PeriodicalIF":0.0,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oxygen-nanobubble-loaded biochar increases soil carbon sequestration in rice paddies","authors":"Yiyu Lan ,&nbsp;Qingnan Chu ,&nbsp;Xiangyu Liu ,&nbsp;Shuhan Xu ,&nbsp;Detian Li ,&nbsp;Chengming Zhang ,&nbsp;Ping He ,&nbsp;Xianwen Feng ,&nbsp;Hanlin Zhang ,&nbsp;Zhimin Sha","doi":"10.1016/j.seh.2025.100174","DOIUrl":"10.1016/j.seh.2025.100174","url":null,"abstract":"<div><div>Enhancing soil carbon sequestration in flooded agroecosystems is critical for promoting soil health, improving crop productivity, and mitigating climate change. This study evaluated the role of oxygen nanobubble (ONB)-loaded biochar, an emerging oxygenation and carbon management tool, in modulating soil organic carbon (SOC) dynamics and microbial activity in rice paddy soil. A pot experiment was conducted with treatments involving biochar, ONB-loaded biochar, and iron plaque induction. The results show that ONB-loaded biochar increased SOC by 11–19% compared to the control group. This enhancement was attributed to two primary mechanisms: (1) suppression of hydrolase activity, including β-glucosidase and acid phosphatase, resulting in reduced decomposition of labile organic matter; and (2) increased oxidase activity, which facilitated the oxidation of phenolic compounds and promoted the formation of recalcitrant C-Fe complexes. Additionally, enzyme stoichiometry and vector analysis revealed stronger microbial carbon limitation and phosphorus limitation in ONB-loaded biochar treatments, particularly during the tillering and maturing stages. The formation of Fe plaques on the roots further modulated these effects by altering redox conditions and nutrient availability. These findings highlight ONB-loaded biochar as a sustainable soil amendment to strengthen long-term SOC storage, modulate microbial nutrient dynamics, and enhance soil biogeochemical functions in rice agroecosystems. This approach offers promising implications for advancing climate-smart and environmentally sound soil management strategies.</div></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"3 4","pages":"Article 100174"},"PeriodicalIF":0.0,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Calcium as a confounding variable in phosphorus attribution: A commentary on Hu et al. (2025)","authors":"Xiaoming Zou","doi":"10.1016/j.seh.2025.100172","DOIUrl":"10.1016/j.seh.2025.100172","url":null,"abstract":"<div><div>This letter questions the sole attribution of enhanced plant growth and arsenic accumulation to P availability in Hu et al. (2025), arguing that Ca, a co-delivered nutrient in all treatments, may be a confounding factor. Emerging evidence highlights Ca's critical role in plant growth, water use efficiency, and arsenic uptake, necessitating careful consideration in experimental designs. The letter recommends experimental designs that disentangle P and Ca effects to strengthen the mechanistic understanding of nutrient-driven phytoremediation.</div></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"3 4","pages":"Article 100172"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144750637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum regarding missing ethics approval statements in previously published articles","authors":"","doi":"10.1016/j.seh.2025.100163","DOIUrl":"10.1016/j.seh.2025.100163","url":null,"abstract":"","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"3 3","pages":"Article 100163"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144614310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stabilizing organic matter and reducing methane emissions during manure composting with biochar to strengthen the role of compost in soil health","authors":"Keiji Jindo ,&nbsp;Tomonori Sonoki ,&nbsp;Miguel A. Sánchez-Monedero","doi":"10.1016/j.seh.2025.100164","DOIUrl":"10.1016/j.seh.2025.100164","url":null,"abstract":"<div><div>Biochar is a promising additive for enhancing composting efficiency and long-term compost quality. This study investigated its effects on greenhouse gas emissions and organic matter stabilization during the composting of poultry (PM) and cattle manure (CM). Biochar addition significantly reduced methane emissions during the thermophilic phase—by 4.6-fold in PM+B and 3.7-fold in CM+B compared to PM and CM without biochar amendment, respectively—indicating improved aeration and microbial activity, as supported by higher CO₂ emissions. A novel aspect of this study is the focus on lignin, a recalcitrant carbon fraction. Biochar-amended composts showed 1.5-fold greater lignin degradation (29.0 ​% in PM ​+ ​B and 10.8 ​% in CM ​+ ​B) than controls, along with enhanced lignin stability, as evidenced by Nuclear Magnetic Resonance spectroscopy and thermal analysis. We assessed labile carbon fractions (e.g., water-soluble carbon and carbohydrates), ATP, and enzymes involved in carbon and nutrient cycling. PM and CM retained more labile carbon through the final stage, showing higher ATP, dehydrogenase, and β-glucosidase than their biochar-treated counterparts. Redundancy analysis indicated that microbial communities and structural traits influenced gas emissions during the thermophilic stage and compost stabilization at the final stage. CH₄ emissions were associated with <em>mcrA</em>, fungi, and total nitrogen, while CO₂ correlated with bulk density and Gram-negative bacteria. In the final stage, maturity indices were linked with microbial and physicochemical variables, underscoring their combined role in compost stabilization. Biochar amendment enhanced compost quality by reducing CH₄ emission and promoting selective carbon transformation, particularly lignin. These findings support biochar-amended composting as a strategy for producing composts with improved agronomic and environmental value.</div></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"3 4","pages":"Article 100164"},"PeriodicalIF":0.0,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144714388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rhizosphere microbiota alleviate As accumulation in maize intercropped with peanut in long-term Cd and As co-contaminated farmland","authors":"Tong Wu ,&nbsp;Hong-Xin Sun ,&nbsp;Li-Ping Geng ,&nbsp;Shu-Shen Yang ,&nbsp;Pei-Ying Xue ,&nbsp;Pei-Pei Gao ,&nbsp;Meng-Zhen Han ,&nbsp;Wen-Ju Liu","doi":"10.1016/j.seh.2025.100162","DOIUrl":"10.1016/j.seh.2025.100162","url":null,"abstract":"<div><div>Root-associated microbiota play an important role in regulating heavy metal transfter from soil to crops in contaminated areas. Maize-peanut intercropping is a cultivation pattern that directly influences the composition and function of the root-associated microbiota in farmland. However, it remains unclear whether this intercropping affects the accumulation of As and Cd in the edible parts of crops by altering the root microbial community in long-term As and Cd co-contaminated farmland. A field experiment was conducted to explore the mechanisms of intercropping maize-peanut on regulating the behaviors of As and Cd in soil-crop system by recruiting the specific root-associated microbial communities. The results demonstrated that intercropping maize-peanut significantly decreased the As concentration in the grains of intercropped maize (IM) up to 61.0 ​% compared with monocropping maize. Specifically, at the jointing stage, IM recruited the distinct root-associated microorganisms, including Actinobacteria <em>Lechevalieria</em>, <em>Nocardioides</em>, <em>Agromyces</em>, and <em>Blastococcus</em>, and Alphaproteobacteria <em>norank_f__Geminicoccaceae</em>. These microbial communities were closely associated with the As bioavailability in the rhizosphere soil and As accumulation in maize tissues, especially grain-As of IM. However, intercropping maize-peanut had no significant effect on Cd concentrations in the grains of either maize or peanut. This study verified that the intercropping maize-peanut might be a better approach to guarantee the safety of crop products in As-contaminated soil, but not in Cd- or Cd-As co-contaminated farmland.</div></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"3 3","pages":"Article 100162"},"PeriodicalIF":0.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144482402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An integrated approach for determining the spatial distribution, source apportionment and human health risks of PAHs in soils of rapidly-urbanized areas","authors":"Lingzhi Luo ,&nbsp;Xiaoyong Liao ,&nbsp;Huan Tao ,&nbsp;You Li ,&nbsp;Liang Wang ,&nbsp;Hongying Cao ,&nbsp;Yonghua Li ,&nbsp;Weiwei Shi ,&nbsp;Tianyi Wang","doi":"10.1016/j.seh.2025.100161","DOIUrl":"10.1016/j.seh.2025.100161","url":null,"abstract":"<div><div>The rise of large urban agglomerations has exacerbated pollutant emissions, resulting in regional soil contamination with polycyclic aromatic hydrocarbons (PAHs), which jeopardizes the development of urban agglomerations and affects human health. There is a lack of research in this area in the Beijing-Tianjin-Hebei region, with the existing studies on PAHs in soil in the larger region often neglecting the spatial heterogeneity of the pollution sources and systematic analysis of risk assessment. This study introduces the Distribution-Source-Risk framework, analyzed soil PAH pollutants in the region, and examined PAH sources, distribution patterns, and associated health risks. Random forest modeling was employed to map PAH distribution in the BTH soils. City classification analysis was conducted based on the derived pollution levels and urbanization degree, resulting in four city types: high urbanization and high pollution, high urbanization and low pollution, low urbanization and high pollution, and low urbanization and low pollution. Primary PAH sources include coal-burning (29%), coking (25%), traffic (25%), and biomass-burning (21%), with varying contributions based on city types. The overall order of human health risks was coal-burning ​&gt; ​traffic ​&gt; ​coking ​&gt; ​biomass-burning sources. Finally, differen policies for soil PAH PAH management (such as energy transition and green infrastructure) were elaborated to promote coordinated development of regional urbanization environment. In summary, this research offers a comprehensive approach, linking processes to provide a precise understanding of pollution across different entities (cities, sources, and populations). Our findings reveal distinct pollution patterns across city types and highlight targeted mitigation priorities and provide a systematic, data-driven framework for regional soil PAH management and public health protection.</div></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"3 3","pages":"Article 100161"},"PeriodicalIF":0.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144239695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Navigating the challenges of spectral soil sensing: Key solutions for success","authors":"Amin Sharififar ,&nbsp;Nicolas Francos ,&nbsp;Wartini Ng ,&nbsp;Budiman Minasny ,&nbsp;Asa Gholizadeh ,&nbsp;Senani Karunaratne ,&nbsp;Alex McBratney","doi":"10.1016/j.seh.2025.100160","DOIUrl":"10.1016/j.seh.2025.100160","url":null,"abstract":"<div><div>Diffuse reflectance spectroscopy has emerged as a powerful tool in soil science, providing detailed soil information across diverse landscapes. Its potential to revolutionise soil assessment is immense; however, the path to fully globalise soil spectroscopy is challenging. Researchers aim to harness a global soil spectral library for rapid, accurate, and cost-effective soil evaluation. Yet, there are still operational challenges to be addressed to operationalise soil spectroscopy for routine analysis. We categorise these challenges into four fundamental topics: the standardisation of spectra acquisition, representation and modelling of soil diversity, complexities of soil matrix overlapping effects, and need for temporal monitoring of soils through spectroscopy. First, the variability in measurement protocols and equipment across studies hinders the comparability of results. Establishing standardised methods for spectra acquisition will enhance reproducibility and foster collaboration across the global scientific community. Second, soils are inherently diverse, reflecting a vast array of physical and chemical properties. Capturing this diversity in soil spectral libraries poses a modelling challenge. Comprehensive representation of various soil types and conditions is crucial for the successful application of spectral techniques. Third, the spectral signatures of different soil properties often overlap, complicating the interpretation of spectral data. Understanding and mitigating the effects of matrix interactions are essential for improving the accuracy of soil properties prediction. Fourth, monitoring soil conditions over time is vital for sustainable land management. Developing methodologies that allow for effective temporal assessments using spectroscopy will enhance our understanding of soil dynamics. We explore the advancements made in tackling these challenges and propose innovative solutions aimed at optimising and operationalising soil spectroscopy. By addressing these critical issues, we can pave the way for a future where soil spectroscopy is an integral part of routine soil analysis, enabling scientists and land managers to make informed decisions that promote soil security.</div></div>","PeriodicalId":94356,"journal":{"name":"Soil & Environmental Health","volume":"3 3","pages":"Article 100160"},"PeriodicalIF":0.0,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}