Remediation of biochar-supported effective microorganisms and microplastics on multiple forms of heavy metals in eutrophic lake

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133098 - 133098

Published: Nov. 29, 2023

Language: Английский

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Biochar effects on soil nitrogen retention, leaching and yield of perennial citron daylily under three irrigation regimes

Agricultural Water Management, Journal Year: 2024, Volume and Issue: 296, P. 108788 - 108788

Published: March 23, 2024

Biochar can serve as a soil amendment to immobilize nitrogen (N) and reduce N leaching from cropland without negative effect on crop yield. However, the interaction of biochar application irrigation regimes status (N retention loss) yield is rarely reported in open perennial vegetable field. A two-years field trial (transplanting first year consecutive growth second year) was conducted citron daylily cropping system sandy brown alluvial soil. Two rates (0 30 t ha−1) three (CDI, conventional drip irrigation; WSDI, water-saving with 80% full quota; APRDI, alternate partial root-zone quota) were included. The response both varied across planting years for daylily. After year's harvest, APRDI enhanced flower bud by 18–28% compared CDI likely due improved nitrate use efficiency evidenced lower surface (0–20 cm) post-harvest. resulted reduction 27% under APRDI. Additionally, WSDI reduced yields, decreased TN sub-surface layer (20–50 9–19% comparison other two regimes, resulting higher concentration solution (14–28%) thus an increased risk leaching. after harvest year, there no variations induced regimes. Irrigation exhibited limited influence status, while mitigated decline 0–50 cm enhancing organic capacity nearly 16–85%. Furthermore, lowest suggested We conclude that combining regime could help retain N, decrease leaching, enhance total years. Therefore, this approach recommended sustainable management long-term crops.

Language: Английский

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Microenvironment heterogeneity affected by anthropogenic wildfire-perturbed soil mediates bacterial community in Pinus tabulaeformis forests

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: July 9, 2024

Introduction In recent years, the frequency and intensity of anthropogenic wildfires have drastically increased, significantly altering terrestrial ecosystems worldwide. These fires not only devastate vegetative cover but also impact soil environments microbial communities, affecting ecosystem structure function. The extent to which fire severity, depth, their interaction influence these effects remains unclear, particularly in Pinus tabulaeformis forests. Methods This study investigated wildfire stratification on physicochemical properties diversity within P. forests North China. Soil samples were collected from different severity zones (Control, Light, Moderate, High) depths (topsoil: 0–10 cm; subsoil: 10–20 cm). Analyses included measurements pH, organic carbon (SOC), total nitrogen (TN), other nutrients. Microbial was assessed using 16S rRNA gene sequencing. Results Our findings revealed significant variations SOC, TN, nutrients with profoundly community composition diversity. pH emerged as a critical determinant, closely linked α-diversity structure. We found that altered ( p = 0.001), pointing noteworthy changes acidity varying levels. Topsoil communities primarily differentiated between burned unburned conditions, whereas subsoil layers showed more pronounced structures. Analysis bacterial phyla across levels shifts communities. Proteobacteria consistently dominated all indicating strong resilience, while Acidobacteriota Actinobacteriota increased abundances high-severity light/moderate-severity areas, respectively. Verrucomicrobiota prevalent control decreased fire-impacted soils. Chloroflexi Bacteroidota displayed abundance moderate Correlation analyses illustrated relationships environmental factors dominant phyla. (SOC) positive correlations (TN) alkaline hydrolysable (AN). exhibited negative correlation multiple factors. available phosphorus (AP) influenced phylum Myxococcota . water content (WC) affected Additionally, ammonium (NH 4 + -N) nitrate (NO 3 − jointly impacted Discussion highlights long-term microenvironment heterogeneity China, 6 years post-fire. demonstrate influences turn affects nutrient dynamics enhances observed notable phyla, emphasizing role availability shaping results underscore importance stratification, responses highlighting need for tailored management strategies. Future research should focus monitoring further elucidate temporal recovery cycling following wildfires. Studies investigating roles specific taxa resilience functional contributions under regimes will provide deeper insights. exploring amendments practices aimed at optimizing could enhance post-fire processes, supporting sustainable resilience.

Language: Английский

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Response of soil nutrients retention and rice growth to biochar in straw returning paddy fields

Chemosphere, Journal Year: 2022, Volume and Issue: 312, P. 137244 - 137244

Published: Nov. 14, 2022

Language: Английский

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Conversion of agricultural biomass into valuable biochar and their competence on soil fertility enrichment

Environmental Research, Journal Year: 2023, Volume and Issue: 234, P. 116596 - 116596

Published: July 8, 2023

Language: Английский

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Nano-agriculture and nitrogen cycling: Opportunities and challenges for sustainable farming

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 421, P. 138489 - 138489

Published: Aug. 17, 2023

Language: Английский

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Biochar and nitrogen fertilizer co-application changed SOC content and fraction composition in Huang-Huai-Hai plain, China

Chemosphere, Journal Year: 2021, Volume and Issue: 291, P. 132925 - 132925

Published: Nov. 16, 2021

Language: Английский

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Managing straw and nitrogen fertilizer based on nitrate threshold for balancing nitrogen requirement of maize and nitrate residue

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 329, P. 117084 - 117084

Published: Dec. 23, 2022

Language: Английский

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Remediation of di(2-ethylhexyl) phthalate (DEHP) contaminated black soil by freeze-thaw aging biochar

Journal of Environmental Sciences, Journal Year: 2023, Volume and Issue: 135, P. 681 - 692

Published: Feb. 15, 2023

Language: Английский

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The joint application of biochar and nitrogen enhances fruit yield, quality and water-nitrogen productivity of water-stressed greenhouse tomato under drip fertigation

Agricultural Water Management, Journal Year: 2023, Volume and Issue: 290, P. 108605 - 108605

Published: Nov. 23, 2023

The biochar application has been reported to have a positive effect on crop yield and nutrient utilization. However, the effects of joint nitrogen (N) soil physical properties, fruit yield, quality, water productivity (WP) partial factor (PFPN) water-stressed greenhouse tomato under drip fertigation remain poorly understood. In this study, two-season experiment was conducted in autumn 2021 spring 2022, involving two rates (0 30 t ha–1 only first season before sowing), N fertilization (175 250 kg ha–1), three irrigation levels (100%, 75%, 50% evapotranspiration). results showed that significantly decreased bulk density by 7–13%, but increased porosity 5.5%− 10% 43.2–73.8% compared with non-biochar treatment. affected total soluble solids (TSS), sugar (SS), vitamin C fruits. interaction PFPN WP 67.4% 76.3% 2021, 38.1% 51.8% respectively. Biochar rate level had significant TSS SS contents both seasons, seasons. application, yield. rate, were growing enhanced quality water-nitrogen tomato. Principal Component Analysis (PCA) revealed PC1 accounted for 47.7% 48%of variation while PC2 14.6% 15.6% This study underscores significance drip-fertigated cultivation highlights its sustained next season.

Language: Английский

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