Environmental controls on soil respiration across a southern US climate gradient: a meta-analysis

Brye, Kristofor R.; McMullen, Richard L.; Silveira, Maria L.; Motschenbacher, Jill M.; Smith, S. Aaron; Gbur, Edward E.; Helton, M.

doi:10.1016/j.geodrs.2016.02.005

Cited by 13 publications

(7 citation statements)

References 42 publications

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“…The DF treatment seasonal emissions (75.7, 120.0, and 141.6 kg CH 4 –C ha –1 ) are in line with other studies (71–195 kg CH 4 –C ha –1 ) on silt loam soils in Stuttgart, AR. , They are within the range (16.5–149 kg CH 4 –C ha –1 ) of growing-season CH 4 emissions reported across the mid-south rice region of the United States in a review of chamber studies taken on replicated small plots . Using the IPCC emission factor , of 0.97 kg CH 4 –C ha –1 day –1 , and applying it conservatively over inundated days, the IPCC estimate of 71–91 kg CH 4 –C ha –1 is in range with the measured emissions.…”

Section: Discussionmentioning

confidence: 81%

Methane Emission Reductions from the Alternate Wetting and Drying of Rice Fields Detected Using the Eddy Covariance Method

Runkle¹,

Suvočarev²,

Reba

et al. 2018

Environ. Sci. Technol.

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Rice cultivation contributes 11% of the global 308 Tg CH 4 anthropogenic emissions. The alternate wetting and drying (AWD) irrigation practice can conserve water while reducing CH 4 emissions through the deliberate, periodic introduction of aerobic soil conditions. This paper is the first to measure the impact of AWD on rice field CH 4 emissions using the eddy covariance (EC) method. This method provides continuous, direct observations over a larger footprint than in previous chamber-based approaches. Seasonal CH 4 emissions from a pair of adjacent, production-sized rice fields under delayed flood (DF) and AWD irrigation were compared from 2015 to 2017. Across the 2 fields and 3 years, cumulative CH 4 emissions in the production season were in the range of 7.1 to 31.7 kg CH 4 −C ha −1 for the AWD treatment and in the range of 75.7−141.6 kg CH 4 −C ha −1 for the DF treatments. Correcting for field-to-field differences in CH 4 production, the AWD practice reduced seasonal CH 4 emissions by 64.5 ± 2.5%. The AWD practice is increasingly implemented for water conservation in the mid-south region of the United States; however, based on this study, it also has great potential for reducing CH 4 emissions.

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Section: Discussionmentioning

confidence: 81%

Methane Emission Reductions from the Alternate Wetting and Drying of Rice Fields Detected Using the Eddy Covariance Method

Runkle¹,

Suvočarev²,

Reba

et al. 2018

Environ. Sci. Technol.

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“…(2016) conducted an intensive study on the relationship between climate factors and SOC at multiple scales and concluded that there is a minimum scale level for detecting the influence of climate factors on SOC and the minimum scale level for MAT and MAP is different. Moreover, the relationships among temperature, precipitation and soil respiration have not been consistent (Hamdi et al, 2011;Brye et al, 2016). Therefore, further study of climate factors on SOC in the paddy soils should be conducted not only at multiple macro scales but also at a micro scale.…”

Section: Uncertainty and Future Studiesmentioning

confidence: 99%

“…Thus, the recycling ratio of crop biomass and the type of crop residues had an impact on the SOC dynamics attributed to different C inputs (Haque et al, 2015;Hok et al, 2015;Chen et al, 2016b). Besides, SOC density is intimately associated with soil respiration influenced by temperature and moisture (Kruse et al, 2013;Brye et al, 2016). Temperature sensitivity of soil respiration (usually measured by Q10) varies among vegetation types (Zheng et al, 2009;Zeng et al, 2014).…”

Section: Effect Of Climate Factors On Soc Density Inmentioning

confidence: 99%

Influence of climate on soil organic carbon in Chinese paddy soils

Wang

Yan

et al. 2017

Chin. Geogr. Sci.

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Soil organic carbon (SOC) is a major component of the global carbon cycle and has a potentially large impact on the greenhouse effect. Paddy soils are important agricultural soils worldwide, especially in Asia. Thus, a better understanding of the relationship between SOC of paddy soils and climate variables is crucial to a robust understanding of the potential effect of climate change on the global carbon cycle. A soil profile data set (n = 1490) from the Second National Soil Survey of China conducted from 1979 to 1994 was used to explore the relationships of SOC density with mean annual temperature (MAT) and mean annual precipitation (MAP) in six soil regions and eight paddy soil subgroups. Results showed that SOC density of paddy soils was negatively correlated with MAT and positively correlated with MAP (P < 0.01). The relationships of SOC density with MAT and MAP were weak and varied among the six soil regions and eight paddy soil subgroups. A preliminary assessment of the response of SOC in Chinese paddy soils to climate indicated that climate could lead to a 13% SOC loss from paddy soils. Compared to other soil regions, paddy soils in Northern China will potentially more sensitive to climate change over the next several decades. Paddy soils in Middle and Lower Yangtze River Basin could be a potential carbon sink. Reducing the climate impact on paddy soil SOC will mitigate the positive feedback loop between SOC release and global climate change.

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“…In this perspective, Bernatek-Jakiel, Kacprzak and Stolarczyk (2016) studied soil characteristics in piping or "piping" activities and their behaviour on the formation of what are defined as "underground pipes" and observed that biological activities, composition, porosity and density have a direct influence on the results. Byre et al (2016) conducted a study on soil respiration, carbon stock and stocking capacity and the direct linkage of these factors with organic matter decomposition, soil moisture and temperature, showing low stability for large areas, specifically in the southeastern United States. Lessovaia et al (2016) researched the development of soil in rocks defined as "basic" and "ultrabasic" based on their porosity and mineralogy and showing as a final result that a soil originates more clay minerals with the accumulation of silicate and with less porosity.…”

Section: Introductionmentioning

confidence: 99%

Soil characterisation used in ceramic industries and an analysis of its feasibility in ecological bricks

Queiroz

Morais

2021

Ambient. constr.

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In this study, we aimed to characterise soils of three sedimentary deposits used as raw material sources for ceramic industries located in the Brazilian semi-arid region. The samples were collected in deposits located in the cities of Barra de São Miguel, Juazeirinho and Santa Cecília. They were named, prepared and submitted to tests to determine the mineralogical, chemical, physical and thermal characteristics using the XRD, EDX, Casagrande, granulometric analysis, TG and DTA. The soils presented compositions containing quartz, alumina and hematite, predominantly with about 90% of the total, with well-defined peaks in the diffractograms confirming the statement, and averages of plasticity and granulometric distribution that fit them as silt-clay. When heated to 1000 °C, fire losses were 17%, 16% and 29% for samples from Barra de São Miguel, Juazeirinho and Santa Cecília, respectively, which is due to the dehydration and burning of organic matter. Thus, they have met the requirements of the Brazilian standards that deal to produce sealing (with sintering) and soil-cement bricks (by pressing). The studied deposits offer satisfactory raw material for the ceramics industry and can provide soil for soil-cement brick (ecological bricks) production.

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Environmental controls on soil respiration across a southern US climate gradient: a meta-analysis

Cited by 13 publications

References 42 publications

Methane Emission Reductions from the Alternate Wetting and Drying of Rice Fields Detected Using the Eddy Covariance Method

Methane Emission Reductions from the Alternate Wetting and Drying of Rice Fields Detected Using the Eddy Covariance Method

Influence of climate on soil organic carbon in Chinese paddy soils

Soil characterisation used in ceramic industries and an analysis of its feasibility in ecological bricks

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