Long-term biochar application influences soil microbial community and its potential roles in semiarid farmland

Luo, Shasha; Wang, Shaojie; Tian, Lei; Li, Shiqing; Li, Xiujun; Shen, You-Gen; Tian, Chunjie

doi:10.1016/j.apsoil.2017.04.024

Cited by 132 publications

(82 citation statements)

References 44 publications

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“…Different trends were observed for biochar at various rates, as shown in Table 2. Although pH is expected to change as a function of biochar amendment rate (Kolb et al, 2009), there was no significant difference in soil pH among three different biochar rates (Table 2, possibly due to the diluted pH increment by the limited amount application of biochar in our study and the long‐term field experiment (Luo et al, 2017). Crop growth and leaching losses of biochar base cations could influence the pH of sandy soil under field conditions (Jones et al, 2012).…”

Section: Resultsmentioning

confidence: 68%

“…The highest soil AP and AK contents were found in the 12 t ha −1 (B12) biochar treatment, where their contents were significantly enhanced by 24.8 and 101%, respectively, compared with the control. Results suggested that 12 t ha −1 (B12) biochar amendment is the best choice for improving soil quality and nutrient availability (Luo et al, 2017). Enhancement of soil available nutrient (such as P and K) by higher rate of biochar application has been reported for acidic soil (Slavich et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

“…The stabilization and transformation of C in biochar‐amended soil with respect to the inherent biochar C (Kuzyakov et al, 2014) and the native SOC (Zimmerman et al, 2011) has been extensively investigated. Biochar can enhance, suppress, or have no significant influence on the mineralization capacity of SOC (Liu et al, 2016; Zheng et al, 2018) Reasons for this include biochar properties, addition rates, and soil structure (Luo et al, 2017). Soil aggregation, mainly responsible for soil structure, is fundamental for soil function and SOC stabilization.…”

mentioning

confidence: 99%

“…Despite the SOC distribution, biochar amendment to soil influenced soil microbial biomass, activity, and community structure (Luo et al, 2017; Zhang et al, 2017). Biochar can act as an energy source for microorganisms (Farrell et al, 2013; Gomez et al, 2014), and also as a habitat for microorganisms from grazers (Luo et al, 2013).…”

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confidence: 99%

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Three‐Year Field Observation of Biochar‐Mediated Changes in Soil Organic Carbon and Microbial Activity

Wang

Liu

et al. 2019

J of Env Quality

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Although biochar is considered a promising C sequestration agent, long‐term field experiments are lacking to assess the effects of biochar addition on the soil organic C (SOC) and microbial community. Corn (Zea mays L.) straw feedstock and biochar were applied to a sandy loam soil for three consecutive years to investigate the SOC distribution within various fractionations, responses of soil microbial biomass, enzyme activity, and community structure. In comparison with straw amendment, higher levels of biochar (6.0 and 12 t ha−1) significantly increased soil pH, SOC, total N (TN), available P (AP) and available K. Biochar (12 t ha−1) decreased the fulvic acid fraction by 15.9% and increased the free‐light C (FLC), intra‐aggregate, and organomineral fractionations by 6.05‐, 2.52‐, and 0.22‐fold, respectively. There was no significant influence of straw or biochar application on the soil microbial biomass C (MBC) contents or the activities of soil enzymes. A phospholipid fatty acids assay suggested that 6.0 t ha−1 straw slightly enriched the abundance of Actinobacteria in soil, whereas biochar (6.0 and 12 t ha−1) mainly promoted the growth of Gram‐positive bacteria, fungi, and general bacteria groups. Canonical correspondence analysis indicated that soil pH, SOC, TN, AP, FLC, and fulvic acid significantly influence the structure of soil microbial community (r2 < −0.50, p < 0.05 for both MBC and the ratio of MBC to SOC; r2 > 0.50 for microbial biomass N, basal respiration [BR], and the ratio of BR through incubation to MBC). Established quantitative relationships provided evidence for understanding the effects of biochar amendment on soil environment after a long‐term field application. Core Ideas After 3 yr of cultivation, higher levels of biochar improved soil properties. Biochar at 12 t ha−1 changed soil organic C distributions within various soil fractionations. There was no significant effect of amendments on soil microbial activity in the current study. Biochar promoted growth of Gram‐positive bacteria, fungi, and general bacteria groups. Biochar‐mediated changes in soil organic C affected the structure of soil microbial community.

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Section: Resultsmentioning

confidence: 68%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Three‐Year Field Observation of Biochar‐Mediated Changes in Soil Organic Carbon and Microbial Activity

Wang

Liu

et al. 2019

J of Env Quality

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“…Functionality of biochar [25]. [11] The erosion between sand particles and biomass particles make them not the best choice in the manufacturing process of biochar due to the higher conversion of carbon to gasses than to solid char.…”

Section: Mitigation Of Climatic Changementioning

confidence: 99%

Role of Biochar Products towards Environmental Management and Technologies: A Brief Review

2018

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Biochar products are not structurally homogenous material but consist of a wide range of heterogeneous elements and chemical structures. This erroneous conception is generally based on the parent material (biomass) and the pyrolysis conditions while covering numerous forms of black carbon. These characteristics lead to a wide spectrum of particle sizes, electrical conductivities, and surface areas among the different products. Biochar products are known to have environmental benefits by connecting the charring biomass to the soil, a step towards environmental management and technology also applied in land administration. Suspected advantages consist of increased soil fertility and crop yield. This paper determines the applicability of biochar products for environmental management and technology, its impacts and effects on soil and soil biota. Various techniques used in the production of biochar are discussed as well as the manufacturing costs on small, medium, and large scales.

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Early response of organic matter dynamics to pine‐biochar in sandy soil under peach trees

Frene

Frazier

Rutto

et al. 2020

Agrosystems Geosci & Env

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Biochar may enhance soil health in sandy soils under peach [Prunus persica (L.) Batsch] tree production. A study was initiated in the Sandhills of North Carolina by applying pine‐biochar at two different rates (5 and 10%, v/v) and types of application (incorporation to 30 cm [‐Inc] and surface [‐Sur]) in 2017. Soil organic matter (SOM) dynamics was assessed via soil organic carbon (SOC), total nitrogen (TN), permanganate‐oxidizable carbon (POXC), aggregate fractions (macro‐, micro‐aggregates, and clay + silt particles), and enzyme activities (CNPS activity) at 0–15 and 15–30 cm in 2018 and 2019. After the first year of pine‐biochar application, POXC decreased in all biochar treatments, SOC was higher in the 10%‐Inc treatment, whereas CNPS activities and macroaggregates were highest in the 5%‐Sur compared with the non‐treated control. These results suggest early changes in SOM dynamics and biogeochemical cycling and have the potential to guide producers with the long‐term application of pine‐biochar to sandy soils.

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Long-term biochar application influences soil microbial community and its potential roles in semiarid farmland

Cited by 132 publications

References 44 publications

Three‐Year Field Observation of Biochar‐Mediated Changes in Soil Organic Carbon and Microbial Activity

Three‐Year Field Observation of Biochar‐Mediated Changes in Soil Organic Carbon and Microbial Activity

Role of Biochar Products towards Environmental Management and Technologies: A Brief Review

Early response of organic matter dynamics to pine‐biochar in sandy soil under peach trees

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