Effects of tillage management on soil CO2 emission and wheat yield under rain-fed conditions

Soil Research ◽  
2016 ◽  
Vol 54 (1) ◽  
pp. 38 ◽  
Author(s):  
Xingli Lu ◽  
Xingneng Lu ◽  
Sikander Khan Tanveer ◽  
Xiaoxia Wen ◽  
Yuncheng Liao
Keyword(s):  
Linear Regression ◽  
Soil Temperature ◽  
Multiple Linear Regression ◽  
Co2 Emissions ◽  
Co2 Emission ◽  
Crop Production ◽  
Pore Space ◽  
Wheat Yield ◽  
Soil Co2 ◽  
Soil Co2 Emission

Tillage disturbance can affect carbon dynamics in soil and plant production through several mechanisms. There are few integrated studies that have dealt with the effect of tillage management on soil CO2 emission and yield of wheat grain (Triticum aestivum L.) in the Loess Plateau in China. A 3-year (2010–12 and 2013–14) field experiment with two types of tillage was established to investigate CO2 emission, its related soil properties, crop yields and yield-scaled CO2 emissions (CO2 emissions per unit crop production) under rain-fed field conditions. Some land was planted with winter wheat without using tillage (‘no tillage’; NT), whereas some used mouldboard plough tillage (‘conventional tillage’; CT). The results indicate that CO2 was significantly and positively related to total nitrogen (P < 0.01), soil organic matter (P < 0.01), soil enzymes (P < 0.01; urease, invertase, and catalase), soil temperature (P < 0.01) and total pore space (P < 0.05). Multiple linear regression analysis in the NT plot included soil temperature and air filled pore space, explaining 85% (P < 0.05) of the CO2 variability, whereas in the CT plot the multiple linear regression model included soil temperature, urease, bulk density and pH, explaining 80% (P < 0.001) of the CO2 variability. Compared with the CT treatment, NT reduced the 3-year average yield-scaled CO2 emissions by 41% because of a 40% reduction in total CO2 emissions with no reduction in wheat yield. Thus, the results indicate that NT could be used to reduce the contribution of agriculture to CO2 emissions while simultaneously maintaining wheat crop production in this area.

scholarly journals Soil CO2 emission in ‘Tifton 85’ bermudagrass pasture fertilized with liquid pig slurry

2021 ◽  
pp. 661-668
Author(s):  
Adilson Amorim Brandão ◽  
Eduardo Guimarães Couto ◽  
Renato de Aragão Ribeiro Rodrigues ◽  
Oscarlina Lúcia dos Santos Weber ◽  
Osvaldo Borges Pinto Júnior
Keyword(s):  
Soil Temperature ◽  
Co2 Emissions ◽  
Carbon Dioxide Emissions ◽  
Co2 Emission ◽  
Control Treatment ◽  
Pig Slurry ◽  
Soil Co2 ◽  
Soil C ◽  
Soil Co2 Emission ◽  
The Impact

The application of liquid pig slurry (LPS) to pastures offers potential as a fertilizer but could have a direct influence on soil CO2 emissions. This study evaluated soil carbon dioxide emissions after successive LPS applications to soils under pasture cultivation. The experiment was carried out on ‘Tifton-85’ bermudagrass pasture cultivated in a red-yellow oxisol soil in the municipality of Lucas do Rio Verde-MT, Brazil. Two treatments were evaluated: the control and an application of 20 m3 ha-1 of LPS after each cut of the pasture. The CO2 emissions from the soil were determined using a high-precision infrared gas analyzer. Soil temperature and soil moisture were determined as were micrometeorological variables. The application of LPS had a significant effect on soil C-CO2 flow. The average flow of C-CO2 from the soil for the control treatment and with the application of LPS was 0.236 g C-CO2 m-2 h-1 and 0.291 g C-CO2 m-2 h-1, respectively. The application of LPS increased the accumulated CO2 emissions from the soil by 23.2%. Soil temperature and moisture are the main factors regulating the process of soil CO2 emission. These factors therefore need to be considered when evaluating the impact of LPS application on greenhouse gas emissions

scholarly journals Soil CO2 emission of sugarcane fields as affected by topography

2009 ◽  
Vol 66 (1) ◽  
pp. 77-83 ◽  
Author(s):  
Liziane de Figueiredo Brito ◽  
José Marques Júnior ◽  
Gener Tadeu Pereira ◽  
Zigomar Menezes Souza ◽  
Newton La Scala Júnior
Keyword(s):  
Co2 Emissions ◽  
Co2 Emission ◽  
Co2 Production ◽  
Spatial And Temporal Variation ◽  
Organic Carbon Content ◽  
Soil Co2 ◽  
Tropical Regions ◽  
Soil Attributes ◽  
Soil Co2 Emission ◽  
Q10 Values

The spatial and temporal variation of soil CO2 emission is influenced by several soil attributes related to CO2 production and its diffusion in the soil. However, few studies aiming to understand the effect of topography on the variability of CO2 emissions exist, especially for cropping areas of tropical regions. The objective of this study was to evaluate the spatial and temporal changes of soil CO2 emission and its relation to soil attributes in an area currently cropped with sugarcane under different relief forms and slope positions. Mean CO2 emissions in the studied period (seven months) varied between 0.23 and 0.71, 0.27 and 0.90, and 0.31 and 0.80 g m-2 h-1 of CO2 for concave (Conc), backslope (BackS) and footslope (FootS) positions, respectively. The temporal variability of CO2 emissions in each area was explained by an exponential relation between the CO2 emission and soil temperature and a linear relation between CO2 emission and soil water content. The Q10 values were 1.98 (± 0.34), 1.81 (± 0.49) and 1.71 (± 0.31) for Conc, BackS and FootS, respectively. Bulk density, macroporosity, penetration resistance, aggregation and oxidizable organic carbon content explain the changes in soil CO2 emission observed, especially when the Conc position was compared to BackS. The effect of relief form and topographic position on soil CO2 emission variation was dependent on the time of measurement.

scholarly journals Uncertainties in the prediction of spatial variability of soil CO2 emissions and related properties

2012 ◽  
Vol 36 (5) ◽  
pp. 1466-1475 ◽  
Author(s):  
Daniel De Bortoli Teixeira ◽  
Elton da Silva Bicalho ◽  
Alan Rodrigo Panosso ◽  
Luciano Ito Perillo ◽  
Juliano Luciani Iamaguti ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Respiration ◽  
Spatial Variability ◽  
Bulk Density ◽  
Ordinary Kriging ◽  
Co2 Emission ◽  
Pore Space ◽  
Soil Bulk Density ◽  
Soil Co2 ◽  
Soil Co2 Emission

The soil CO2 emission has high spatial variability because it depends strongly on soil properties. The purpose of this study was to (i) characterize the spatial variability of soil respiration and related properties, (ii) evaluate the accuracy of results of the ordinary kriging method and sequential Gaussian simulation, and (iii) evaluate the uncertainty in predicting the spatial variability of soil CO2 emission and other properties using sequential Gaussian simulations. The study was conducted in a sugarcane area, using a regular sampling grid with 141 points, where soil CO2 emission, soil temperature, air-filled pore space, soil organic matter and soil bulk density were evaluated. All variables showed spatial dependence structure. The soil CO2 emission was positively correlated with organic matter (r = 0.25, p < 0.05) and air-filled pore space (r = 0.27, p < 0.01) and negatively with soil bulk density (r = -0.41, p < 0.01). However, when the estimated spatial values were considered, the air-filled pore space was the variable mainly responsible for the spatial characteristics of soil respiration, with a correlation of 0.26 (p < 0.01). For all variables, individual simulations represented the cumulative distribution functions and variograms better than ordinary kriging and E-type estimates. The greatest uncertainties in predicting soil CO2 emission were associated with areas with the highest estimated values, which produced estimates from 0.18 to 1.85 t CO2 ha-1, according to the different scenarios considered. The knowledge of the uncertainties generated by the different scenarios can be used in inventories of greenhouse gases, to provide conservative estimates of the potential emission of these gases.

scholarly journals Root Litter Mixing with That of Japanese Cedar Altered CO2 Emissions from Moso Bamboo Forest Soil

Forests ◽  
2020 ◽  
Vol 11 (3) ◽  
pp. 356 ◽  
Author(s):  
Jun Pan ◽  
Yuanqiu Liu ◽  
Xinyue Yuan ◽  
Junyi Xie ◽  
Jiehui Niu ◽  
...  
Keyword(s):  
Co2 Emissions ◽  
Co2 Emission ◽  
Fine Root ◽  
Japanese Cedar ◽  
N Deposition ◽  
Moso Bamboo ◽  
Soil Co2 ◽  
Soil Co2 Emission ◽  
Litter Input ◽  
Root Litter

Research Highlights: This study examined the effect of mixing fine roots of Japanese cedar with moso bamboo on soil carbon dioxide (CO2) emissions with nitrogen (N) addition treatment. Background and Objectives: Moso bamboo expansion into adjacent forests and N deposition are common in subtropical China. The effects of litter input on soil CO2 emissions, especially fine root litter input, are crucial to evaluate contribution of moso bamboo expansion on greenhouse gas emissions. Materials and Methods: An in situ study over 12 months was conducted to examine mixing fine roots of Japanese cedar with moso bamboo on soil CO2 emissions with simulated N deposition. Results: Fine root litter input of Japanese cedar and moso bamboo both impacted soil CO2 emission rates, with mixed litter, positively impact soil CO2 emission rate with N addition treatment. Moso bamboo fine root litter input decreased the sensitivity of soil CO2 emission rate to soil temperature. Conclusions: The encroachment of moso bamboo into adjacent forests might benefit soil C sequestration under warming climate, which will also benefit the mitigation of global climate change.

scholarly journals Local knowledge on landscape sustainable-hydrological management reduces soil CO2 emission, fire risk and biomass loss in West Kalimantan Peatland, Indonesia

2019 ◽  
Vol 20 (3) ◽  
pp. 725-731
Author(s):  
DWI ASTIANI ◽  
MOHAMMAD J TAHERZADEH ◽  
EVI GUSMAYANTI ◽  
TRI WIDIASTUTI ◽  
BURHANUDDIN BURHANUDDIN
Keyword(s):  
Water Level ◽  
Co2 Emissions ◽  
Local Knowledge ◽  
Co2 Emission ◽  
Fire Risk ◽  
Water Levels ◽  
Soil Co2 ◽  
West Kalimantan ◽  
Soil Co2 Emission ◽  
Biomass Loss

Abstract. Astiani D, Taherzadeh MJ, Gusmayanti E, Widiastuti T, Burhanuddin. 2019. Local knowledge on landscape sustainable-hydrological management reduces soil CO2 emission, fire risk and biomass loss in West Kalimantan Peatland, Indonesia. Biodiversitas 20: 725-731.  Local knowledge in managing peatlands, especially in the area of peat hydrology, has been practiced through generations to manage peatlands for agriculture and small scale gardens. Farmers in West Kalimantan have developed the way to conserve water by making simple dams using soil or woody plants to hold water from the peat upstream areas on small channels or rivers. To reduce puddles during rain or tides, people make small trenches, so-called parit cacing in the middle of the larger channel. The trench cross-section size is ~30-40 cm2. This channel can maintain the peat water level to the extent of the depth of the channel. These channels, at the same time, are useful, for a clear, easy land ownership border for one farmer family land. The results of CO2 emissions assessment at various water levels on the peatland landscape demonstrate that the landscape which surrounded by the parit cacing trenches can maintain lower CO2 emissions compared to the one that has deeper water levels. The knowledge to develop this channel has also reduced the risk of peatland fire hazard and the amount of peat biomass loss on a fire event. An assessment on the effect of water level on the loss of peat biomass when burned, reduce 30-78% loss risks if compared to water table depth of 60-80cm, which is assumed as general practices on peatland recently. The practices of the knowledge on peatlands hydrology management can reduce the risk of peatland soil CO2 emission as well as loss of peat mass through decomposition and during peat fires.

scholarly journals Carbon dioxide efflux in a rhodic hapludox as affected by tillage systems in southern Brazil

2009 ◽  
Vol 33 (2) ◽  
pp. 325-334 ◽  
Author(s):  
Luis Fernando Chavez ◽  
Telmo Jorge Carneiro Amado ◽  
Cimélio Bayer ◽  
Newton Junior La Scala ◽  
Luisa Fernanda Escobar ◽  
...  
Keyword(s):  
Soil Temperature ◽  
Crop Residues ◽  
Pore Space ◽  
Abiotic Factors ◽  
Soil Tillage ◽  
Static System ◽  
Southern Brazil ◽  
Soil Co2 ◽  
Tillage Systems ◽  
Dynamic Chamber

Agricultural soils can act as a source or sink of atmospheric C, according to the soil management. This long-term experiment (22 years) was evaluated during 30 days in autumn, to quantify the effect of tillage systems (conventional tillage-CT and no-till-NT) on the soil CO2-C flux in a Rhodic Hapludox in Rio Grande do Sul State, Southern Brazil. A closed-dynamic system (Flux Chamber 6400-09, Licor) and a static system (alkali absorption) were used to measure soil CO2-C flux immediately after soybean harvest. Soil temperature and soil moisture were measured simultaneously with CO2-C flux, by Licor-6400 soil temperature probe and manual TDR, respectively. During the entire month, a CO2-C emission of less than 30 % of the C input through soybean crop residues was estimated. In the mean of a 30 day period, the CO2-C flux in NT soil was similar to CT, independent of the chamber type used for measurements. Differences in tillage systems with dynamic chamber were verified only in short term (daily evaluation), where NT had higher CO2-C flux than CT at the beginning of the evaluation period and lower flux at the end. The dynamic chamber was more efficient than the static chamber in capturing variations in CO2-C flux as a function of abiotic factors. In this chamber, the soil temperature and the water-filled pore space (WFPS), in the NT soil, explained 83 and 62 % of CO2-C flux, respectively. The Q10 factor, which evaluates CO2-C flux dependence on soil temperature, was estimated as 3.93, suggesting a high sensitivity of the biological activity to changes in soil temperature during fall season. The CO2-C flux measured in a closed dynamic chamber was correlated with the static alkali adsorption chamber only in the NT system, although the values were underestimated in comparison to the other, particularly in the case of high flux values. At low soil temperature and WFPS conditions, soil tillage caused a limited increase in soil CO2-C flux.

scholarly journals Spatial variability of soil CO2 emission in a sugarcane area characterized by secondary information

2013 ◽  
Vol 70 (3) ◽  
pp. 195-203 ◽  
Author(s):  
Daniel De Bortoli Teixeira ◽  
Elton da Silva Bicalho ◽  
Alan Rodrigo Panosso ◽  
Carlos Eduardo Pellegrino Cerri ◽  
Gener Tadeu Pereira ◽  
...  
Keyword(s):  
Spatial Variability ◽  
Co2 Emission ◽  
Soil Co2 ◽  
Soil Co2 Emission ◽  
Secondary Information
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