Effect of swine biogas slurry application on soil dissolved organic matter (DOM) content and fluorescence characteristics

Yan, Lilong; Liu, Qingping; Liu, Cong; Liu, Yue; Zhang, Mingyue; Zhang, Yudan; Zhang, Ying; Gu, Wanrong

doi:10.1016/j.ecoenv.2019.109616

Cited by 45 publications

(12 citation statements)

References 63 publications

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“…Proteins in soil organic matter can provide nutrition and energy to microorganisms, which can promote the maintenance and improvement of soil fertility (McFarland et al, 2010). In fact, biochemical processes driven by microorganisms can easily break down the proteins used by microorganisms into monomeric molecules, which can then be polymerised to form humus through aggregation processes (Yan et al, 2019). We found that the fluorescence peak value of the humus type gradually decreased with increasing soil depth, whereas the protein fluorescence peak exhibited the opposite trend.…”

Section: Fluorescent Component Characteristics Of Dommentioning

confidence: 77%

Differences in dissolved organic matter and analysis of influencing factors between plantations pure and mixed forest soils in the loess plateau

Meng,

Li,

Xiao

et al. 2024

Front. For. Glob. Change

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The dissolved organic matter (DOM) in forest ecosystems significantly impacts soil carbon cycling due to its active turnover characteristics. However, whether different plantation forest soil profiles exhibit distinct DOM characteristics remains unclear. Hence, utilizing fluorescence spectroscopy and the parallel factor analysis (PARAFAC) method, a 1-meter soil profile analysis was carried out on three distinct artificial forests (Pinus tabuliformis (PT), Quercus crispula (QC), and a mixed forest of PT and QC (MF)), concurrently assessing the impact of soil chemical properties and enzyme activity on dissolved organic matter (DOM). The findings indicated that the mean concentration of dissolved organic carbon (DOC) was greatest in the MF and lowest in PT, exhibiting considerable variation with soil depth, suggesting that mixed tree species may promote the discharge of organic matter. The fluorescence spectra revealed two distinct peaks: humic-like fluorescence peaks (Peaks A and C) and a protein-like fluorescence peak (Peak T), with the most intense fluorescence observed in MF soil. As the soil depth increased, the fluorescence intensity of Peaks A and C steadily declined, while the intensity of Peak T rose. Four DOM components were identified in three types of plantations forests: surface soil was dominated by humic acid-like fluorescent components (C1 and C2), while the deep soil was primarily characterized by protein-like fluorescence components (C3 and C4). Different soil profile fluorescence parameter indices indicated that the source of DOM in the surface soil (i.e., 0–20 cm) was mainly allochthonous inputs, whereas, in the deep soil (i.e., 60–100 cm), it was mainly autochthonous, such as microbial activity. The findings from the partial least squares path modeling (PLS-PM) revealed that TP, aP, NH4+-N, and the combined impact of soil enzymes were influential in shaping the diversity of DOM attributes. Put differently, alterations in DOM concentration were concomitantly influenced by forest classification, soil characteristics, and depth. It has been demonstrated that, in contrast to monoculture forests, the establishment of mixed forest models has been more advantageous in enhancing the soil dissolved organic matter (DOM). These discoveries offer innovative perspectives on the dynamic characteristics of DOM in soil profiles and its influencing factors under different plantations forest planting patterns.

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Section: Fluorescent Component Characteristics Of Dommentioning

confidence: 77%

Differences in dissolved organic matter and analysis of influencing factors between plantations pure and mixed forest soils in the loess plateau

Meng,

Li,

Xiao

et al. 2024

Front. For. Glob. Change

View full text Add to dashboard Cite

show abstract

“…Peak B has λ ex / λ em maxima of 370/460 nm and can be assigned to the H peak, similar to terrestrial humus-like material from lignin and other terrestrial plants. 31 Peak T are closely related to the life activities of microorganisms. Thus, microbial biomass was more prevalent in the reactor when sodium acetate was used as the carbon source.…”

Section: Resultsmentioning

confidence: 99%

Simultaneous nitrate and sulfate biotransformation driven by different substrates: comparison of carbon sources and metabolic pathways at different C/N ratios

Wang

Huang

et al. 2023

RSC Adv.

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“…This study shows that biogas slurry pretreatment of degraded soil improved the physical and chemical properties of the soil [ 15 , 16 ], effectively regulated—the proportion of various nutrients content such as soil organic carbon in the soil [ 19 ] and pH value [ 20 ]. It has a direct positive effect on soil fertility [ 18 ].…”

Section: Discussionmentioning

confidence: 99%

Biogas Slurry Significantly Improved Degraded Farmland Soil Quality and Promoted Capsicum spp. Production

Wang,

Sanusi,

Wang

et al. 2024

Plants

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This study reports on the effects of pretreated biogas slurry on degraded farm soil properties, microflora and the production of Capsicum spp. The responses of soil properties, microorganisms and Capsicum spp. production to biogas slurry pretreated soil were determined. The biogas slurry pretreatment of degraded soil increases the total nitrogen (0.15–0.32 g/kg), total phosphorus (0.13–0.75 g/kg), available phosphorus (102.62–190.68 mg/kg), available potassium (78.94–140.31 mg/kg), organic carbon content (0.67–3.32 g/kg) and pH value of the soil, while the population, diversity and distribution of soil bacteria and fungi were significantly affected. Interestingly, soil ammonium nitrogen, soil pH and soil nitrate nitrogen were highly correlated with the population of bacteria and fungi present in the pretreated soil. The soil with biogas slurry pretreatment of 495 m3/hm2 favored the seedling survival rate, flowering rate and fruit-bearing rate of Capsicum spp. and significantly reduced the rate of rigid seedlings. In this study, the application of 495 m3/hm2 biogas slurry to pretreat degraded soil has achieved the multiple goals of biogas slurry valorization, soil biofertilization and preventing and controlling plant diseases caused by soil-borne pathogenic microorganisms. These findings are of significant importance for the safe and environmentally friendly application of biogas slurry for soil pretreatment.

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Effect of swine biogas slurry application on soil dissolved organic matter (DOM) content and fluorescence characteristics

Cited by 45 publications

References 63 publications

Differences in dissolved organic matter and analysis of influencing factors between plantations pure and mixed forest soils in the loess plateau

Differences in dissolved organic matter and analysis of influencing factors between plantations pure and mixed forest soils in the loess plateau

Simultaneous nitrate and sulfate biotransformation driven by different substrates: comparison of carbon sources and metabolic pathways at different C/N ratios

Biogas Slurry Significantly Improved Degraded Farmland Soil Quality and Promoted Capsicum spp. Production

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