Carbon mineralization and its temperature sensitivity under no-till and straw returning in a wheat-maize cropping system

Kan, Zheng‐Rong; He, Chao; Liu, Qiuyue; Liu, Bingyang; Virk, Ahmad Latif; Qi, Jianying; Zhao, Xin; Zhang, Hai‐Lin

doi:10.1016/j.geoderma.2020.114610

Cited by 28 publications

(21 citation statements)

References 43 publications

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“…Soil moisture, influenced by climate changes under global warming, regulates the microbial activity and substrate availability for microbial utilization, and thus affects the microbial acclimation to warming and SOC stability (Wang et al, 2006). Hao et al (2016) and Kan, He, et al (2020) reported that SOC mineralization rates increased with the increase in soil moisture contents. However, Sun et al (2016) argued that SOC mineralization was the lowest when the soil moisture regime was at the middle level.…”

Section: Fac Tor S Affec Ting So C S Tab Ilit Ymentioning

confidence: 99%

“…However, Luo et al (2010) argued that NT only improved SOC stock at 0-10 cm depth by 3.15 Mg ha −1 , and decreased SOC stock by 3.30 Mg ha −1 compared with CT for 20-40 cm depth. Thus, no F I G U R E 2 Factors affecting soil organic carbon stability and mineralization and their relationship (Chen et al, 2021;Kan, He, et al, 2020;Kuzyakov et al, 2000;Schmidt et al, 2011;Six, Bossuyt, et al, 2004;Yang et al, 2020) [Colour figure can be viewed at wileyonlinelibrary. com] significant difference was observed between NT and CT for 0-40 cm depth.…”

Section: So C Miner Aliz Ati On and Accumul Ation Under Ntmentioning

confidence: 99%

“…Effects of microbial activity and residues on soil organic carbon stability under NT as compared to CT (Angst et al, 2021; Kan, He, et al, 2020; Plaza et al, 2013; Qi, Zhao, et al, 2021) [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Soc Stability Under Ntmentioning

confidence: 99%

“…The response of soil organic carbon mineralization to temperature and moisture under NT (Kan, He, et al, 2020; Li et al, 2020) [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Soc Stability Under Ntmentioning

confidence: 99%

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Mechanisms of soil organic carbon stability and its response to no‐till: A global synthesis and perspective

Kan

Liu

et al. 2021

Global Change Biology

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123

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Mitigation to climate change due to the ever-increasing greenhouse gas (GHG) emissions is a challenging global issue (van Groenigen et al., 2011). Carbon (C) contained in soils to 1 m depth is about three times as much as in the atmosphere. Thus, even a small proportion of soil organic C (SOC) could induce quantitatively relevant variations in atmospheric carbon dioxide (CO 2 ) and generate positive feedbacks to climate change (Lal, 2004a). Furthermore, SOC plays a key role in determining soil health and agricultural productivity

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Section: Fac Tor S Affec Ting So C S Tab Ilit Ymentioning

confidence: 99%

Section: So C Miner Aliz Ati On and Accumul Ation Under Ntmentioning

confidence: 99%

Section: Soc Stability Under Ntmentioning

confidence: 99%

“…The response of soil organic carbon mineralization to temperature and moisture under NT (Kan, He, et al, 2020; Li et al, 2020) [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Soc Stability Under Ntmentioning

confidence: 99%

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Mechanisms of soil organic carbon stability and its response to no‐till: A global synthesis and perspective

Kan

Liu

et al. 2021

Global Change Biology

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123

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“…Among environmental considerations for biomass harvest systems, one of the most important is the effect on soil quality parameters such as soil organic matter (SOM) and SOC, nutrient balances, soil pH, aggregate stability and water holding capacity (Chen et al., 2020; Guan et al., 2020; Kan et al., 2020; Li et al., 2019; Su et al., 2020; Susser et al., 2020).…”

Section: Crop Residue Management Effects On Soil Quality Parametersmentioning

confidence: 99%

The broad impacts of corn stover and wheat straw removal for biofuel production on crop productivity, soil health and greenhouse gas emissions: A review

et al. 2020

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Biofuel production from crop residues is widely recognized as an essential component of developing a bioeconomy, but the removal of crop residues still raises many questions about the sustainability of the cropping system. Therefore, this study reviews the sustainability effects of crop residues removal for biofuel production in terms of crop production, soil health and greenhouse gas emissions. Most studies found little evidence that residue management had long-term impacts on grain yield unless the available water is limited. In years when water was not limiting, corn and wheat removal rates ≥90% produced similar or greater grain yield than no removal in most studies. Conversely, when water was limiting, corn grain yield decreased up to 21% with stover removal ≥90% in some studies. Changes in soil organic fractions and nutrients depended largely on the amount of residue returned, soil depth and texture, slope and tillage. Reductions in organic fractions occurred primarily with complete stover removal, in the top 15-30 cm in fine-textured soils. Soil erosion, water runoff and leaching of nutrients such as total nitrogen (N) and extractable soil potassium decreased when no more than 30% of crop residues were removed. Stover management effects on soil bulk density varied considerably depending on soil layer, and residue and tillage management, with removal rates of less than 50% helping to maintain the soil aggregate stability. Reductions in CO 2 and N 2 O fluxes typically occurred following complete residue removal. The use of wheat straw typically increased CH 4 emissions, and above or equal to 8 Mg/ha wheat straw led to the largest CO 2 and N 2 O emissions, regardless of N rates. Before using crop residues for biofuel production, it should therefore always be checked whether neutral to positive sustainability effects can be maintained under the site-specific conditions.

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Litter quality modifies soil organic carbon mineralization in an ecological restoration area

Wang

Shi

et al. 2023

Land Degrad Dev

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Soil organic carbon (SOC) mineralization impacts the loss and accumulation of carbon (C) in crucial ways. However, it is still unclear how exactly litter quality regulates the SOC mineralization process and SOC stock. We conducted a laboratory incubation experiment under different temperatures, that is 10°C, 20°C, 30°C, and 40°C, and moisture, that is 5%, 10%, and 20% regimes, as well as a control (CK), and different litter qualities, that is, Artemisia ordosica, Caragana korshinskii, and Eragrostis minor. This was conducted in soil from a revegetated area in the Tengger Desert, northern China. We investigated the impacts of litter addition on SOC mineralization by considering the chemical properties of litter, temperature, and soil moisture, as well as the cumulative CO2‐C emissions (CCE), maximum rate (MR), potential mineralizable C (C0), priming effect (PE), temperature sensitivity (Q10), moisture sensitivity (MS), and SOC stock. Litter addition increased the CCE, MR, C0, and MS but decreased the Q10, and the effects of different litter qualities on CCE, MR, C0, MS, and Q10 differed significantly. The SOC mineralization rate increased with increasing temperature and moisture and was also accelerated by the interactions between temperature and moisture. The total C and lignin contents of litter were the key factors that governed SOC mineralization. Litter addition had a positive PE on SOC mineralization, and high‐quality litter with low C:N ratio (A. ordosica and C. korshinskii) increased the PE compared with low‐quality litter with high C:N ratio (E. minor). The PE also decreased with increasing temperature and moisture. Litter addition resulted in an acceleration of the loss of SOC mineralization, and an increase in the SOC mineralization response toward moisture but reduced the SOC mineralization response toward temperature, whereas litter quality was inversely correlated with the SOC stock. Therefore, the input of low‐quality litter will decrease the loss of mineralized SOC caused by PE and diminish the accumulation of SOC in the revegetated regions. These findings may provide a reasonable litter management model to promote the stability of soil C pool in arid revegetated areas.

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Carbon mineralization and its temperature sensitivity under no-till and straw returning in a wheat-maize cropping system

Cited by 28 publications

References 43 publications

Mechanisms of soil organic carbon stability and its response to no‐till: A global synthesis and perspective

Mechanisms of soil organic carbon stability and its response to no‐till: A global synthesis and perspective

The broad impacts of corn stover and wheat straw removal for biofuel production on crop productivity, soil health and greenhouse gas emissions: A review

Litter quality modifies soil organic carbon mineralization in an ecological restoration area

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