Green synthesis of layered double hydroxides (LDH) for the remediation of As and Cd in water and soil

Applied Clay Science, Год журнала: 2024, Номер 249, С. 107262 - 107262

Опубликована: Янв. 20, 2024

Язык: Английский

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Heavy metal pollution in Mongolian-Manchurian grassland soil and effect of long-range dust transport by wind

Environment International, Год журнала: 2023, Номер 177, С. 108019 - 108019

Опубликована: Июнь 3, 2023

Grasslands provide a range of valuable ecosystem services, but they are also particularly fragile ecosystems easily threatened by human activities, such as long-term open-pit mining and related industrial activities. In grassland area, dust containing heavy metal(loid)s generated mines may further migrate to remote places, few studies have focused on the long-range transport contaminants an important pollution source. present study, one largest most intact ecosystems, Mongolian-Manchurian steppe, was selected investigate its status track potential sources. A total 150 soil samples were collected explore reginal distribution nine that has risk in grassland. We conducted combined multi-variant analysis positive matrix factorization (PMF) machine learning, which foregrounded source inspired hypothesis novel stochastic model describe distribution. Results showed four different sources accounting for 44.44% (parent material), 20.28% (atmospheric deposition), 20.39% (farming), 14.89% (transportation) concentration, respectively. Factor 2 indicated coal surface lead significant enrichment As Se with their concentration far above global average level, from other reported areas. Machine learning results confirmed atmospheric topographic features contamination controlling factors. The proposed As, Cu released will be transported over long distance under prevailing monsoon, until finally deposited windward slope mountain due terrain obstruction. wind deposition phenomenon temperate grassland, making it cannot ignored. Evidence this study reveals urgency precautions around areas provides basis management control policies.

Язык: Английский

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Evaluation of surface soil quality and land suitability for agricultural soils affected by soil erosion

Discover Soil., Год журнала: 2025, Номер 2(1)

Опубликована: Янв. 30, 2025

Язык: Английский

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Biochar amendment gradually immobilized soil As and Sb over 2 years

Soil Use and Management, Год журнала: 2024, Номер 40(1)

Опубликована: Янв. 1, 2024

Abstract Biochar is a promising candidate for the sustainable remediation of soils, especially those contaminated with cationic heavy metals, because its liming effect and tunable surface functionality. Despite potential, prior studies have highlighted biochar's limitations in immobilizing soil oxyanions, such as arsenic (As) antimony (Sb), particularly short term. This shotcoming primarily attributed to an increase pH following biochar amendment, factors like competition phosphate. In this study, amendments were applied three soils varying levels oxyanions including As Sb, cations cadmium (Cd) lead (Pb). These treatments generally resulted short‐term failure oxyanion immobilization. However, noteworthy phenomenon unfolded over 2‐year period, where biochars gradually transitioned from initial mobilization or poor immobilization eventual successful (up 87.0% 100% Sb). Temporal changes Cd Pb differed exhibiting no improvement rates time. Potential mechanisms driving process investigated, suggesting decline pH, progressive oxidation carbon fractions, direct adsorption effects contributing factors. study sheds light on temporal shift performance, highlighting gradual efficacy The findings offer valuable insights into dynamic nature capabilities.

Язык: Английский

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Soil health and ecosystem services

Soil Use and Management, Год журнала: 2023, Номер 39(4), С. 1259 - 1266

Опубликована: Авг. 3, 2023

Global soils are increasingly affected by acidification (Guo et al., 2010), salinization (Machado & Serralheiro, 2017), pollution (FAO, 2021), loss of biodiversity (Hou, 2022) and other soil health issues (Lehmann 2020; Rinot 2019). While traditionally scientists primarily concerned about the nutrient status crop productivity agricultural (Delgado-Baquerizo 2013; Havlin, 2020), scientific community is now extending its focus to broader ecosystem services that environment provides (Banwart, 2011; O'Riordan 2021; Pereira 2018). These include, but not limited to, global climate regulation (Davidson Janssens, 2006; Jansson Hofmockel, water purification (Abdullah Skaalsveen 2019), human protection (Oliver Gregory, 2015; Tilman Clark, 2014) conservation (Mader 2002; Wall 2015). This new trend has put an umbrella concept, ‘soil health’, at centre stage, which also helped discussion on go beyond farming communities (Kibblewhite 2008; Lehmann 2020). Scientific publication pertaining undergone rapid growth in recent years. The number journal papers published each year, as indexed Web Science Core Collections, grew from 101 2012 1043 2022, representing a 10-fold over decade (see Figure 1). In contrast, soil-related only twofold within same period. increased usage concept can greatly enhance communication between non-scientists such policymakers general public (Powlson, 2021). will undoubtedly provide momentum better protect non-renewable resource. To contribute rapidly growing knowledge base accessibility, our editorial team Soil Use Management commissioning virtual special issue (VSI) with topic ‘Soil service’. So far, we have collected 40 papers, covering topics including (1) indicators path forward, (2) sustainable plant growth, animal microbial diversity, (3) service: regulation, (4) quality, (5) (6) amendment improvement. We intend keep updating this VSI continuously collect high quality research fall under health. their critical review health, al states continued capacity function vital living sustains plants, animals humans, connects science policy, stakeholder needs supply- chain management’ Similarly, US Department Agriculture defines ‘the animals, humans’. (https://www.nrcs.usda.gov/conservation-basics/natural-resource-concerns/soils/soil-health). Scientists proposed link half century ago (Howard, 1945; Voisin, 1959), did gain popularity until most decade. years, environmental pressures forced farmers develop adopt more practices (Hobbs 2008). recognition soil's importance accelerated years due ongoing international effort Agenda 2030, towards achieving 17 development goals (SDGs) plays roles many these SDGs 2023). Among various countries, produced largest relating followed India China 2). Nevertheless, faced great difficulties defining quantifying health’ despite last both inside outside (Baveye, Soils serving different functions require properties. For instance, used fill material infrastructure requires no biological abundance, characteristic profoundly important for low pH lack readily available nutrients may be viewed healthy forest, consensus definition quantitative assessment methodology led worries scientists, policy makers, activists lead confusion chaos when common vision take practical actions needed There variety physical, chemical been evaluate Sofo 2022). traditional tends rely upon physicochemical closely linked organic matter yield Kleber, Seufert 2012), studies referred reflect ‘living’ characteristics (Guerra Pulleman 2012) 3). biomass carbon nitrogen urban areas (Gąsiorek Halecki, conversion multiple indicator score into single achieved; however, ratings individual being important, especially it comes management (Moebius-Clune, 2016). Moreover, expert opinion combined non-linear scoring techniques offer comprehensive (Ghorai Existing found often co-occurs sometimes heavily relies rhizosphere thousands times richer than bulk (Bamdad Arbuscular mycorrhizal fungi (AMF) naturally occurring soils, forming symbiotic relationships 72% species, phosphorus uptake crops (Christensen mycelium developed AMF expands volume extracted from, results diverse response disturbance (Conceição play role maintaining (Van Groenigen 2014; Wu 2011). A study Cambodia mounds originated termite bioturbation host abundant species 4). were widely local increase fertility rice fields (Muon meta-analysis shows presence earthworms agroecosystem 25% 2014). use affects soil. field showed long-term lime application, started 1942 applied every 5–9 resulted higher level arbuscular fungi, improved root comparison fertilizer applications, agroecological practice tea farms significantly frequency intensity, macrofauna mesofauna abundance. yields slightly lower, still enabled earn $8400/ha/year owing production (Le Conservation tillage practices, no-till, ridge subsoiling all North-eastern China, no-till reduced where mean annual temperature below 3°C (He regulating atmospheric composition change (Jansson Lal, 2004). represent terrestrial pool, surficial storing 1500–2400 GtC, far exceeding 860 GtC (Friedlingstein Land degradation significant stock. Grassland accounts nearly 70% land, mismanagement approximately 300 grassland (Abdalla Peatland represents one rich fertile earth, 30% carbon; drainage intensive cultivation huge peat (Matysek emits large amount CH4 N2O greenhouse gases, inundated environments land paddy (Page 2022; Zhu Sustainable rotational grazing residue return cropland, reduce net CO2 emission stock Islam wastage regulated careful water-table management, causes trade-offs among respiratory carbon, Organo-mineral interactions involving Al, Fe Mn elements affect decomposing (Antony Climate smart agriculture technologies must incorporate latest findings, mitigate potential (Paustian 2016), well enabling adapt stresses (Nyagumbo landholding institutions reach zero goals. Newcastle University United Kingdom off-set 50% current 40-year period using alternative strategies (Wang, Werner, Manning, order feed ever-growing population supply there fertilizers pesticides improve (Lu Tian, 2017). chemicals beneficial suppressing diseases, they pose threat aquatic eutrophication exposure toxicity (Wallman Delin, irony lies small fraction system target organisms, respectively. Under worst scenarios, 1% while majority reminder enter surface or groundwater, causing (Ali Water type, rainfall intensity interval, topography hydrogeology conditions Guo, Wang, 2023; Yang Ireland increasing time interval slurry application first event 49 days could loading runoff 80% (O'Rourke New Zealand, farm dairy effluent recycled soil, unintentionally contaminate groundwater leaching dissolved reactive E. coli. Treatment poly-ferric sulphate coli 93% 98%, (Che effect depends texture. risk pesticide transmission waterways was less 20% clay 45% sand (McGinley ultimate source 95 per cent food consumed beings Food unhealthy poor nutritional jeopardizes (Gashu Oliver Enhanced supply, medicinal ubiquitous industrial emission, (Jia Hou, Sun Both accidental ingestion contaminated particles consumption foodstuff cause detrimental effects Hou Heavy metals cadmium biggest threats (Arao 2010; Qin 2023), particularly rates (Dong Zhang, Tan, Open burning straw livestock further risks via inhalation meat milk. Therefore, essential avoid associated contaminants product values (Jin intervention measures service protecting example, foliar spray nano-silicon nano-selenium effectively Cd (Deng Ecological restoration mobility (Zhao Biochar derived waste bioavailability heavy (Ayaz plastic accumulation microplastics/nanoplastics (Palansooriya Wang Zhou effective mitigating caused microplastics (Dissanayake amendments biochar compost (Gao Thakur Liu, attract attention because offers wide benefits (Abel 2013), supplying slow-release nutrients, sequestration reducing contaminant (Hou Deng, However, feedstock (Li ensure sound appropriate pyrolysis rate selected match specific site characteristics. based microorganisms low-cost management. Microbial amendments, named biofertilizers, socioeconomic benefits. Its market valued $1.57 billion 2018 expected 12% next 5 (O'Callaghan 2022).Three major types benefits: fixing rhizobia, growth-promoting rhizobacteria inoculants if incorporated existing intended established Differences texture, eroded depositional landscape positions, how (Abagandura sandy relatively content aggregate stability store cationic water, applying liming materials limestone best maintain optimal pH, calcium magnesium, structure With proper selection maintained.

Язык: Английский

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Evaluation of soil structural quality and soil fertility indicators of dryland and fadama milieus based on soil profile description at 0–20 cm soil depth

Discover Soil., Год журнала: 2025, Номер 2(1)

Опубликована: Апрель 8, 2025

Язык: Английский

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Biochar as a Potential Nutrient Carrier for Agricultural Applications

Current Pollution Reports, Год журнала: 2025, Номер 11(1)

Опубликована: Апрель 7, 2025

Язык: Английский

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Determinants of organic soil fertilization methods use over time and in the face of climate vulnerability

Soil and Tillage Research, Год журнала: 2024, Номер 240, С. 106066 - 106066

Опубликована: Март 6, 2024

Implementation of environment-friendly soil organic matter (SOM) enhancing technologies (SOMET) is crucial for addressing degradation. This study aims to examine the usage status SOMET (i.e., fertilizer, manure, and compost) from dimension long-term non-usage, dis-usage, late-usage identify drivers these four behaviors usage. We utilized national representative datasets 1659 Bangladeshi rice-farmers periods 2013, 2016 2020 with climate hazards data. Households were categorized into non-user (48%) who does not practice in any three survey years, dis-user (29%) as households abandon after practicing a period time, late-user (20%) apply few years later than their peer, user (3%) years. Ordered logit model was used quantify likelihood being above defined categories. use has been found be highly constrained by hazards. Flood depth, salinity, heavy rainfall, storm cyclone vulnerability decrease late-use while increase probability non-use dis-use (p≤0.01). Alternatively, are 12% 4% lower drought-prone areas. Increasing drought experiences Higher SOM level decreases but induces dis-use. Other major older household head, more educated women households, larger farm-size, higher livestock values. Considering factors developing implementing policies could instrumental promoting application at farm-level. Long-term context-specific various socio-economic factors, thus, designing strategies should emphasize contextual variations promote continuities.

Язык: Английский

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Combining Digital Covariates and Machine Learning Models to Predict the Spatial Variation of Soil Cation Exchange Capacity

Land, Год журнала: 2023, Номер 12(4), С. 819 - 819

Опубликована: Апрель 3, 2023

Cation exchange capacity (CEC) is a soil property that significantly determines nutrient availability and effectiveness of fertilizer applied in lands under different managements. CEC’s accurate high-resolution spatial information needed for the sustainability agricultural management on farms Nagaland state (northeast India) which are fragmented intertwined with forest ecosystem. The current study digital mapping (DSM) methodology, based CEC values determined samples obtained from 305 points region, mountainous difficult to access. Firstly, auxiliary data were three open-access sources, including indices generated time series Landsat 8 OLI satellite, topographic variables derived elevation model (DEM), WorldClim dataset. Furthermore, used Lasso regression (LR), stochastic gradient boosting (GBM), support vector (SVR), random (RF), K-nearest neighbors (KNN) machine learning (ML) algorithms systematically compared R-Core Environment Program. Model performance evaluated square root mean error (RMSE), determination coefficient (R2), absolute (MAE) 10-fold cross-validation (CV). lowest RMSE was by RF algorithm 4.12 cmolc kg−1, while others following order: SVR (4.27 kg−1) <KNN (4.45 <LR (4.67 <GBM (5.07 kg−1). In particular, WorldClim-based climate covariates such as annual temperature (BIO-1), precipitation (BIO-12), elevation, solar radiation most important all algorithms. High uncertainty (SD) have been found areas low sampling density this finding be considered future surveys.

Язык: Английский

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Quality Parameters of Plum Orchard Subjected to Conventional and Ecological Management Systems in Temperate Production Area

Horticulturae, Год журнала: 2024, Номер 10(9), С. 907 - 907

Опубликована: Авг. 27, 2024

Environmental protection, global food security, and nutritional quality are critical issues for worldwide sustainable development. Plums (Prunus domestica L.), well-known their rich content distinct phytochemical profile, have received increased attention due to potential health benefits. The present study evaluates the ecological conventional management systems of parameters in three plum varieties—Tuleu Gras, Record, Centenar—and establishes suitable practices improve fruit yields. morphometric features (color, firmness, soluble solid content, titratable acidity, total sugar) were analyzed during raw state, while different fruit-sample extracts assessed compounds heavy metal concentrations, specifically, zinc, copper, nickel, cadmium. results show a wide variability examined characteristics among that differentially accumulated throughout ripening phase significantly influenced value fruit. application an practice yielded small fruits (38 g) maintained more consistent vigorous color compared with system (83 g). Moreover, plums higher antioxidant activities, polyphenols, flavonoids (21.70–25.54 µM Trolox/g dw, 3.89–7.76 mg GAE/ g 1.45–3.65 CE/g respectively). Among metals fruit, copper exhibited highest concentrations (0.83–1.21 mg/kg), cadmium was detected at lowest levels (0.006–0.009 mg/kg). implications metals, by calculating estimated daily intake (EDI), target hazard quotient (THQ), index (HI), both adults children also analyzed. EDI values elements followed order Cu > Zn Ni Cd no concern human (THQ HI < 1). According this study’s findings, plums, providing compelling argument adopting agricultural practices. These highlight importance selecting practices, not only safeguard environment but ensure high-quality products consumption.

Язык: Английский

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