Succession of bacterial community structure in response to a one-time application of biochar in barley rhizosphere and bulk soils DOI Creative Commons
Lu Yu, Peter M. Homyak, Liangzhong Li

et al.

Elementa Science of the Anthropocene, Journal Year: 2023, Volume and Issue: 11(1)

Published: Jan. 1, 2023

Biochar is often used as an amendment to enhance soil fertility by directly increasing pH and nutrient availability. However, biochar may also improve indirectly altering the succession of bacterial communities that, in turn, alter supply To determine how affects richness diversity, well respond across space time, we studied rhizosphere bulk soils potted barley plants for 2 years. Adding significantly increased community (Chao 1 index) end second year (P = 0.037), but soils, observed increase Year that dissipated 2. In contrast richness, adding only had a significant effect on diversity (Shannon seedling stage < 0.001), thereafter. We found relative abundances Actinobacteria Proteobacteria decreased Acidobacteria Chloroflexi, suggesting these were sensitive inputs. The biochar-sensitive genera belonging made up 45%–58% taxa both soils. Of biochar, Nitrosospira Sphingomonas most abundant despite initial responders rhizosphere, their numbers after years 179 fewer than Our findings suggest was relatively short-lived influence plant phenology stronger driver change inputs its application. Altogether, structure reflected changes environment induced combined rhizospheric inputs, phenology, microbial composition amending with contribute fertility.

Language: Английский

Biochar application significantly increases soil organic carbon under conservation tillage: an 11-year field experiment DOI Creative Commons
Xinyu Ding, Guitong Li,

Xiaorong Zhao

et al.

Biochar, Journal Year: 2023, Volume and Issue: 5(1)

Published: May 19, 2023

Abstract Biochar application and conservation tillage are significant for long-term organic carbon (OC) sequestration in soil enhancing crop yields, however, their effects on native (native SOC) without biochar situ remain largely unknown. Here, an 11-year field experiment was carried out to examine different rates (0, 30, 60, 90 Mg ha −1 ) SOC pools labile pool I II, recalcitrant microbial activities calcareous across entire winter wheat–maize rotation. The proportions of C 3 4 -derived mineralization were quantified using basal respiration (SBR) combined with 13 natural isotope abundance measurements. results showed that 39–51% the remained top 30 cm after 11 years. significantly increased contents but decreased proportion [native dissolved (DOC), biomass (MBC)]. tended increase indicators associated degradation, such as SBR, fluorescein diacetate hydrolysis activity, metabolic quotient ( q CO 2 ). Meanwhile, higher (B60 B90) SBR enhanced mineralization. effect rate content fractions occurred 0–15 layer, there no differences at 15–30 cm. Soil depth also II . In conclusion, accumulation by SOC, collectively influenced seasonal turnover fractions, which has important implications agricultural sequestration. Graphical

Language: Английский

Citations

62
A comprehensive review of the effects of biochar on soil physicochemical properties and crop productivity DOI
Ammal Abukari, James S. Kaba, Evans Dawoe

et al.

Waste Disposal & Sustainable Energy, Journal Year: 2022, Volume and Issue: 4(4), P. 343 - 359

Published: Nov. 8, 2022

Language: Английский

Citations

40
Straw and straw biochar differently affect fractions of soil organic carbon and microorganisms in farmland soil under different water regimes DOI Creative Commons
Limei Chen, Songlin Sun, Yaoyu Zhou

et al.

Environmental Technology & Innovation, Journal Year: 2023, Volume and Issue: 32, P. 103412 - 103412

Published: Oct. 17, 2023

Incorporating amendments can change soil organic carbon (SOC) components and biological properties, but the comprehensive utilization of straw biochar in paddy remains poorly understood. We studied changes pH, SOC content, labile C fractions, microbial communities under alternating wetting drying (AWD) continuous flooding (CF). The results showed that addition increased relative biomass (MBC), dissolved (DOC), easily oxidizable (EOC) were more sensitive than those SOC, pH was higher AWD management CF management. Proteobacteria, Bacteroidetes, Acidobacteria three most abundant bacterial phyla, major fungal phyla Phragmoplastophyta, norank_Eukaryta, Apicomplexa. A redundancy discriminant analysis (RDA) found both conducive to growth, their combination beneficial for growth development. Aggregated boosted tree (ABT) Structural equation modeling (SEM) MBC EOC important factors determining abundance diversity, while EOC, main influencing diversity fungi. This study explored fractions provided a theoretical basis an in-depth understanding influence pools on communities.

Language: Английский

Citations

19
Effect of waste leather dander biochar on soil organic carbon sequestration DOI

Tao E,

J.P. Cheng, Ying Cheng

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112633 - 112633

Published: March 29, 2024

Language: Английский

Citations

8
High-efficiency remediation of Hg and Cd co-contaminated paddy soils by Fe–Mn oxide modified biochar and its microbial community responses DOI Creative Commons
Tong Sun, Ge Gao, Wenhao Yang

et al.

Biochar, Journal Year: 2024, Volume and Issue: 6(1)

Published: June 5, 2024

Abstract Fe–Mn oxide modified biochar (FMBC) was produced to explore its potential for remediation of Hg–Cd contaminated paddy soils. The results showed that the application FMBC decreased contents bioavailable Hg and Cd by 41.49–81.85% 19.47–33.02% in contrast CK, while amount labile organic carbon (C) fractions C-pool management index (CPMI) increased under BC treated soils, indicating enhancement soil C storage nutrient cycling function. Dry weight different parts Oryza sativa L. enhanced after addition FMBC, Fe Mn root iron–manganese plaques (IMP) were 1.46–2.06 6.72–19.35 times higher than those control groups. brown rice treatments significantly reduced 18.32–71.16% 59.52–72.11% compared with control. altered composition metabolism function bacterial communities, especially increasing abundance keystone phyla, including Firmicutes , Proteobacteria Actinobacteria. Partial least squares path modelling (PLSPM) revealed Na 2 S O 3 –Hg, DTPA–Cd IMP key indicators affecting accumulation grains. These demonstrate simultaneous value combined pollution restoring fertility biological productivity. Graphical

Language: Английский

Citations

8
Effects of polypropylene microplastics on carbon dioxide dynamics in intertidal mangrove sediments DOI

Xubing Lin,

Lin Shu-ying,

Licheng Peng

et al.

Environmental Pollution, Journal Year: 2024, Volume and Issue: 346, P. 123682 - 123682

Published: Feb. 28, 2024

Language: Английский

Citations

7
Converting rice paddy to upland fields decreased plant lignin but increased the contribution of microbial residue to SOC DOI
Quancheng Wang, Weiqi Wang, Yong Zheng

et al.

Geoderma, Journal Year: 2022, Volume and Issue: 425, P. 116079 - 116079

Published: Aug. 4, 2022

Language: Английский

Citations

23
Effects of biochar and biofertilizer on groundnut production: a perspective for environmental sustainability in Bangladesh DOI Creative Commons

F.S. Shikha,

M. M. Rahman, Naznin Sultana

et al.

Carbon Research, Journal Year: 2023, Volume and Issue: 2(1)

Published: Feb. 24, 2023

Abstract Regular large-scale application of fertilizers, pesticides, and mulching can lead to soil health degradation increase negative environmental impacts, contributing significantly greenhouse gas (GHG) emissions. Considering these factors by applying biochar biofertilizer (rhizobium inoculants) in groundnut production, a novel experiment was conducted for increasing fertility, productivity, carbon stock Bangladesh's Charland agroecosystems. The two-year involved seven treatments consisting T 1 (control), 2 (soil test based (STB) fertilizer dose following recommendation guide (FRG) 2018), 3 ((T minus nitrogen fertilizer) + biofertilizer), 4 (T biochar), 5 6 (only 7 biochar). result showed that the treatment had highest nodule counts (78.17 plant −1 ), weights (122.97 mg root weight (1.47 g ) nut yields (2.30 t ha all which were statistically identical compared other treatments. In addition, recorded shoot (35.47 whereas control lowest (16.50 weight. Results biochar-based rhizobium inoculants increased nodulation, weight, yield nutrient uptake growth at four stages (seedling, flowering, pod formation harvesting). revealed modulated abundance functional microbes through nitrification reduced denitrification N-use Moreover, this interactive system improved NO − , leading an N uptake, thereby promoting yield. parameters, amended as carrier organic (SOC) (1.76 about 26% higher than treatments, saved considerable amount 6.6 kg CO eq GHG emissions aided sustainability towards climate-smart agriculture. Graphical

Language: Английский

Citations

16
Losses and destabilization of soil organic carbon stocks in coastal wetlands converted into aquaculture ponds DOI
Shao-Ying Lin,

Yaxin Zhou,

Weiqi Wang

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(9)

Published: Sept. 1, 2024

Coastal-wetlands play a crucial role as carbon (C) reservoirs on Earth due to their C pool composition and functional sink, making them significant for mitigating global climate change. However, the development utilization of wetland resources, many wetlands have been transformed into other land-use types. The current study focuses alterations in soil organic-C (SOC) coastal-wetlands following reclamation aquaculture ponds. We conducted sampling at 11 different along tropical temperate regions China coast. Each site included two community types, one with solely native species (Suaeda salsa, Phragmites australis Mangroves) an adjacent reclaimed pond. Across these locations we compared SOC stock, active OC fractions, physicochemical properties between coastal observed that uses, sites, interaction had effects its stock (p < .05). Reclamation significantly declined concentration depths 0-15 cm 15-30 by 35.5% 30.3%, respectively, also decreased 29.1% 37.9%, respectively. Similar trends were evident labile organic-C, dissolved microbial biomass concentrations .05), indicating C-destabilization losses from conversion. Soils ponds exhibited higher bulk density (BD; 11.3%) lower levels salinity (61.0%), water content (SWC; 11.7%), total nitrogen (TN) (23.8%) available-nitrogen (37.7%; p .05) than coastal-wetlands. Redundancy-analysis revealed pH, BD TN key variables most linked temporal variations fractions land use This provides theoretical basis rational management achievement environment-friendly society, preservation multiple service functions within ecosystems.

Language: Английский

Citations

4
Effects of soil labile carbon fractions and microbes on GHG emissions from flooding to drying in paddy fields DOI
Yi Xiao, Rong Huang, Zongjin Zhang

et al.

Journal of Environmental Sciences, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

0