The impact of long-term liming on soil organic carbon and aggregate stability in low-input acid soils

Abstract Long term fertilization alters soil microbiological properties and then affects soil organic carbon (SOC) stocks. However, the interrelations of SOC with biological drivers and their relative importance are rarely analyzed quantitatively at aggregate scale. We investigated the contribution of soil microbial biomass, diversity and enzyme activity to C stock in soil aggregate fractions (> 5 mm, 2 − 5 mm, 1 − 2 mm, 0.25 − 1 mm and < 0.25 mm) at topsoil (0–15 cm) from 27-year long term fertilization regime. Compared to CK (no fertilization management), NPS and NPM (inorganic fertilization plus the incorporation of maize straw or composted cow manure) significantly reduced the impact of NP (inorganic fertilizers application alone) on the growth of microbial community, and increased the microbial contribution to C stock. The results showed that microbial variables were significantly correlated with SOC content in > 0.25 mm aggregates rather than in < 0.25 mm aggregates. Fungal variables (fungal, AM biomass, and F/B ratio) and enzyme activities (BXYL and LAP) in > 0.25 mm aggregates explained 21% and 2% on C, respectively. Overall, organic matter (OM) addition could contribute to higher C storage by boosting fungal community and enzyme activity rather than by changing microbial community diversity in macro-aggregates.

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Long-term effect of lime application on the chemical composition of soil organic carbon in acid soils varying in texture and liming history

Biology and Fertility of Soils ◽

10.1007/s00374-015-1076-2 ◽

2015 ◽

Vol 52 (3) ◽

pp. 295-306 ◽

Cited By ~ 20

Author(s):

X. Wang ◽

C. Tang ◽

J. A. Baldock ◽

C. R. Butterly ◽

C. Gazey

Keyword(s):

Chemical Composition ◽

Organic Carbon ◽

Soil Organic Carbon ◽

Acid Soils ◽

Term Effect ◽

Long Term Effect ◽

Lime Application

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Dynamic Relationship Between Biologically Active Soil Organic Carbon and Aggregate Stability in Long-Term Organically Fertilized Soils

Pedosphere ◽

10.1016/s1002-0160(12)60046-0 ◽

2012 ◽

Vol 22 (5) ◽

pp. 616-622 ◽

Cited By ~ 8

Author(s):

Cheng-Liang LI ◽

Jiang-Bing XU ◽

Yuan-Qiu HE ◽

Yan-Li LIU ◽

Jian-Bo FAN

Keyword(s):

Organic Carbon ◽

Soil Organic Carbon ◽

Aggregate Stability ◽

Biologically Active ◽

Dynamic Relationship

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Differential long-term effects of climate change and management on stocks and distribution of soil organic carbon in productive grasslands

Biogeosciences Discussions ◽

10.5194/bgd-9-1055-2012 ◽

2012 ◽

Vol 9 (1) ◽

pp. 1055-1096 ◽

Cited By ~ 1

Author(s):

A. M. G. De Bruijn ◽

P. Calanca ◽

C. Ammann ◽

J. Fuhrer

Keyword(s):

Climate Change ◽

Organic Carbon ◽

Soil Organic Carbon ◽

Climate Change Scenarios ◽

Long Term Effects ◽

Organic C ◽

Soil C ◽

The Impact ◽

Soc Stocks

Abstract. We studied the impact of climate change on the dynamics of soil organic carbon (SOC) stocks in productive grassland systems undergoing two types of management, an intensive type with frequent harvests and fertilizer applications and an extensive system where fertilization is omitted and harvests are fewer. The Oensingen Grassland Model was explicitly developed for this study. It was calibrated using measurements taken in a recently established permanent sward in Central Switzerland, and run to simulate SOC dynamics over 2001–2100 under three climate change scenarios assuming different elements of IPCC A2 emission scenarios. We found that: (1) management intensity dominates SOC until approximately 20 yr after grassland establishment. Differences in SOC between climate scenarios become significant after 20 yr and climate effects dominate SOC dynamics from approximately 50 yr after establishment, (2) carbon supplied through manure contributes about 60% to measured organic C increase in fertilized grassland. (3) Soil C accumulates particularly in the top 10 cm soil until 5 yr after establishment. In the long-term, C accumulation takes place in the top 15 cm of the soil profile, while C content decreases below this depth. The transitional depth between gains and losses of C mainly depends on the vertical distribution of root senescence and root biomass. We discuss the importance of previous land use on carbon sequestration potentials that are much lower at the Oensingen site under ley-arable rotation and with much higher SOC stocks than most soils under arable crops. We further discuss the importance of biomass senescence rates, because C balance estimations indicate that these may differ considerably between the two management systems.

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Measuring and Monitoring the Impact of Precision Land Levelling and Arable Cropping Systems on Aggregate Associated Carbon Fractions and Soil Carbon Stock in Sub-tropical Ecosystems

International Research Journal of Pure and Applied Chemistry ◽

10.9734/irjpac/2020/v21i2430354 ◽

2020 ◽

pp. 197-220

Author(s):

R. K. Naresh ◽

Yogesh Kumar ◽

S. S. Tomar ◽

Mukesh Kumar ◽

M. Sharath Chandra ◽

...

Keyword(s):

Organic Carbon ◽

Soil Organic Carbon ◽

Irrigation Water ◽

Cropping Systems ◽

Cropping System ◽

Energy Productivity ◽

Tropical Ecosystems ◽

Carbon Fractions ◽

The Impact

The Long term experiment (2009-10 to-2018-19) was conducted to study the effects of precision land levelled (PLL) versus traditional land levelled (TLL) systems on aggregate-associated soil organic carbon (SOC) in a farmers participatory fields under sub-tropical ecosystems (Western Uttar Pradesh) of Indian conditions. The significance of this study mainly focus to determine the suitability of various labile carbon fractions as indicators of soil quality and the stability of aggregates plays a vital role in preserving and long term storing of soil organic carbon by implementing Precision Land Levelling under various arable cropping system. The treatment comprised of sixteen alternative arable cropping systems strategies viz. R-WPLL, R-WTLL, S-WPLL, S-WTLL, R-P-MbPLL, R-P-MbTLL, R-P-OPLL, R-P-OTLL, R-C-OPLL, R-C-OTLL, O-W-MbPLL, O-W-MbTLL, M-W-MbPLL, M-W-MbTLL, M-P-MbPLL, and M-P-MbTLL etc were taken with recommended dose of fertilizers and various observations were recorded. The results indicated that the M-P-MbPLL produced 79.5 kgha-1day-1 productivity and used only 110 cm irrigation water which was 48.1 per cent less than irrigation water used for R-WPLL. The land use efficiency under R-P-MbPLL, R-P-OPLL, R-P-MbPLL, R-C-OPLL and M-P-MbPLL were recorded as 86.2, 85.1, 84.8, 84.6 and 83.9%. However, energy value in terms total input energy and energy productivity were 39.9 and 218.5 GJ ha-1 over existing R-W system (32.9 & 105.7 GJ ha-1). The quantity of water used in the R-C-O, M-W-Mb, M-P-Mb, and O-W-Mb were 46.1, 44.9, 40.1 and 36.3 per cent less than quantity of water used for R-W system. Aggregate-associated SOC contents in 0-15 cm depth were recorded highest SOC at 15-30 cm depth in PLL systems as 9.4% for both M-P-MbPLL and M-W-MbPLL. Highest PON change in arable cropping system (30.9 & 40.1%) was found in O-W-Mb with precision land levelling (T11) plots followed by R-P-O with precision land levelling (T7) plots (26.1 & 35.8%) as compared to R-W and S-W system. The values of LFOC in surface soil were 194.7, 187.9, 176.2, 170.9, 168.5, 150.6, 132.8 and 123.8 mgkg−1 in R-P-O, R-C-O, M-W-Mb, O-W-Mb, M-P-Mb, R-P-Mb, R-W and S-W with precision land levelling treatments. Higher SOC sequestration was observed with precision land leveling along with alternative arable cropping systems with O-W-MbPLL, R-C-OPLL, R-P-OPLL, O-W-MbPLL and M-P-MbPLL respectively. Therefore, PLL systems had greater soil surface aggregation and carbon storage, land levelling did not affect SOC patterns across aggregates, but changed the distribution of aggregate size, reflecting that land levelling mainly influenced soil fertility by altering soil structure.

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Differential long-term effects of climate change and management on stocks and distribution of soil organic carbon in productive grasslands

Biogeosciences ◽

10.5194/bg-9-1997-2012 ◽

2012 ◽

Vol 9 (6) ◽

pp. 1997-2012 ◽

Cited By ~ 11

Author(s):

A. M. G. De Bruijn ◽

P. Calanca ◽

C. Ammann ◽

J. Fuhrer

Keyword(s):

Climate Change ◽

Organic Carbon ◽

Soil Organic Carbon ◽

Climate Change Scenarios ◽

Long Term Effects ◽

Organic C ◽

Soil C ◽

The Impact ◽

Soc Stocks

Abstract. We studied the impact of climate change on the dynamics of soil organic carbon (SOC) stocks in productive grassland systems undergoing two types of management, an intensive type with frequent harvests and fertilizer applications and an extensive system without fertilization and fewer harvests. Simulations were conducted with a dedicated newly developed model, the Oensingen Grassland Model. It was calibrated using measurements taken in a recently established permanent sward in Central Switzerland, and run to simulate SOC dynamics over 2001–2100 under various climate change scenarios assuming different elements of IPCC A2 emission scenarios. We found that: (1) management intensity dominates SOC until approximately 20 years after grassland establishment. Differences in SOC between climate scenarios become significant after 20 years and climate effects dominate SOC dynamics from approximately 50 years after establishment. (2) Carbon supplied through manure contributes about 60 % to measured organic C increase in fertilized grassland. (3) Soil C accumulates particularly in the top 10 cm of the soil until 5 years after establishment. In the long-term, C accumulation takes place in the top 15 cm of the soil profile, while C content decreases below this depth. The transitional depth between gains and losses of C mainly depends on the vertical distribution of root senescence and root biomass. We discuss the importance of previous land use on carbon sequestration potentials that are much lower at the Oensingen site under ley-arable rotation with much higher SOC stocks than most soils under arable crops. We further discuss the importance of biomass senescence rates, because C balance estimations indicate that these may differ considerably between the two management systems.

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Long-term tillage and drainage influences on soil organic carbon dynamics, aggregate stability and corn yield

Soil Science & Plant Nutrition ◽

10.1080/00380768.2013.878643 ◽

2014 ◽

Vol 60 (1) ◽

pp. 108-118 ◽

Cited By ~ 34

Author(s):

S. Kumar ◽

T. Nakajima ◽

E.G. Mbonimpa ◽

S. Gautam ◽

U.R. Somireddy ◽

...

Keyword(s):

Organic Carbon ◽

Soil Organic Carbon ◽

Aggregate Stability ◽

Carbon Dynamics ◽

Corn Yield ◽

Soil Organic Carbon Dynamics

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What is the impact of human wastewater biosolids (sewage sludge) application on long-term soil carbon sequestration rates? A systematic review protocol

Environmental Evidence ◽

10.1186/s13750-021-00221-3 ◽

2021 ◽

Vol 10 (1) ◽

Author(s):

Mike J. Badzmierowski ◽

Gregory K. Evanylo ◽

W. Lee Daniels ◽

Kathryn C. Haering

Keyword(s):

Carbon Sequestration ◽

Organic Carbon ◽

Soil Organic Carbon ◽

Soil Carbon ◽

Full Text ◽

Land Application ◽

Carbon Stocks ◽

Soil Organic Carbon Stocks ◽

The Impact

Abstract Background Human wastewater biosolids, hereafter referred to as biosolids, are produced in significant quantities around the world and often applied to an extensive land mass including agricultural fields, forests, mine lands, and urban areas. Land-application of biosolids has been reported in peer-reviewed and non-peer-reviewed work to change soil organic carbon stocks in varying amounts. Determining the potential of soil organic carbon (SOC) stock change and sequestration from biosolids land application is critical for biosolids producers and users to gain access to carbon credit markets. Our review question is, "what is the impact of biosolids application on long-term soil carbon sequestration rates?” We look to explore this main question with the follow-up, "does biosolids processing methods and characteristics, application method, soil properties, land management and other modifiers affect rates of carbon accumulation from land-applied biosolids?" Methods Searches will be conducted using online databases (i.e., Web of Science Core Collection, CAB Abstracts, Scopus, ProQuest Dissertations & Theses Global), search engines (Google Scholar and Microsoft Academic), and specialist websites to find primary field studies and grey literature of biosolids land-application effects on soil organic carbon stocks. We will use English search terms and predefined inclusion criteria of: (1) a field study of at least 24 months that reports soil organic carbon/matter (SOC/SOM) concentrations/stocks; (2) has two types of treatments: (i) a control (non-intervention AND/OR synthetic fertilizer) AND (ii) a biosolids-based amendment; and (3) information of amendment properties and application dates and rates to estimate the relative contribution of the applied materials to SOC changes. We will screen results in two stages: (1) title and abstract and (2) full text. A 10% subset will be screened by two reviewers for inclusion at the title and abstract level and use a kappa analysis to ensure agreement of at least 0.61. All results in the full text stage will be dual screened. Data will be extracted by one person and reviewed by a second person. Critical appraisal will be used to assess studies’ potential bias and done by two reviewers. A meta-analysis using random effects models will be conducted if sufficient data of high enough quality are extracted.

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