Methane and Nitrogen Oxide Fluxes in Tropical Agricultural Soils: Sources, Sinks and Mechanisms

Mosier, A. R.; Waßmann, Reiner; Verchot, Louis V.; King, Jennifer Y.; Palm, Cheryl

doi:10.1007/978-94-017-3604-6_2

Cited by 57 publications

(71 citation statements)

References 117 publications

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“…According to Mosier et al (2004), the major factors controlling CH 4 oxidation are potential biological demand and diffusion. The biological demand is regulated by both the physical and chemical environments, while the CH 4 diffusion rate is regulated by physical factors only.…”

Section: Factors Affecting Methane Oxidationmentioning

confidence: 99%

Methane Oxidation in Landfill Cover Soils: A Review

Abushammala¹,

Basri²,

Irwan³

et al. 2014

Asian J. Atmos. Environ

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Migration of methane (CH 4 ) gas from landfills to the surrounding environment negatively affects both humankind and the environment. It is therefore essential to develop management techniques to reduce CH 4 emissions from landfills to minimize global warming and to reduce the human risks associated with CH 4 gas migration. Oxidation of CH 4 in landfill cover soil is the most important strategy for CH 4 emissions mitigation. CH 4 oxidation occurs naturally in landfill cover soils due to the abundance of methanotrophic bacteria. However, the activities of these bacteria are influenced by several controlling factors. This study attempts to review the important issues associated with the CH 4 oxidation process in landfill cover soils. The CH 4 oxidation process is highly sensitive to environmental factors and cover soil properties. The comparison of various biotic system techniques indicated that each technique has unique advantages and disadvantages, and the choice of the best technique for a specific application depends on economic constraints, treatment efficiency and landfill operations.

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Section: Factors Affecting Methane Oxidationmentioning

confidence: 99%

Methane Oxidation in Landfill Cover Soils: A Review

Abushammala¹,

Basri²,

Irwan³

et al. 2014

Asian J. Atmos. Environ

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“…The extent of management effects on soil greenhouse gas emissions is a large source of uncertainty in grasslands (Soussana et al 2004). Manure amendment can increase CO 2 and N 2 O fluxes (Chadwick et al 2000, Dalal et al 2003, Mosier et al 2004, Davidson 2009); composted animal waste and plant matter tends to result in lower greenhouse gas emissions relative to green manures or synthetic fertilizers (Vallejo et al 2006, Alluvione et al 2010. However, the effects of organic matter additions on greenhouse gas dynamics in rangelands are largely unstudied (Lynch et al 2005, Cabrera et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Effects of organic matter amendments on net primary productivity and greenhouse gas emissions in annual grasslands

Ryals

Silver

2013

Ecological Applications

120

123

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Abstract. Most of the world's grasslands are managed for livestock production. A critical component of the long-term sustainability and profitability of rangelands (e.g., grazed grassland ecosystems) is the maintenance of plant production. Amending grassland soils with organic waste has been proposed as a means to increase net primary productivity (NPP) and ecosystem carbon (C) storage, while mitigating greenhouse gas emissions from waste management. Few studies have evaluated the effects of amendments on the C balance and greenhouse gas dynamics of grasslands. We used field manipulations replicated within and across two rangelands (a valley grassland and a coastal grassland) to determine the effects of a single application of composted green waste amendments on NPP and greenhouse gas emissions over three years. Amendments elevated total soil respiration by 18% 6 4% at both sites but had no effect on nitrous oxide or methane emissions. Carbon losses were significantly offset by greater and sustained plant production. Amendments stimulated both above-and belowground NPP by 2.1 6 0.8 Mg C/ha to 4.7 6 0.7 Mg C/ha (mean 6 SE) over the threeyear study period. Net ecosystem C storage increased by 25-70% without including the direct addition of compost C. The estimated magnitude of net ecosystem C storage was sensitive to estimates of heterotrophic soil respiration but was greater than controls in five out of six fields that received amendments. The sixth plot was the only one that exhibited lower soil moisture than the control, suggesting an important role of water limitation in these seasonally dry ecosystems. Treatment effects persisted over the course of the study, which were likely derived from increased water-holding capacity in most plots, and slow-release fertilization from compost decomposition. We conclude that a single application of composted organic matter can significantly increase grassland C storage, and that effects of a single application are likely to carry over in time.

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“…(Source: after Fargione et al 2008) and other greenhouse gases affect the atmosphere and climate (Mosier et al 2004). Provisional data suggest that such emissions from Kalimantan's peatlands are low (Hadi et al 2005).…”

Section: Other Greenhouse Gasesmentioning

confidence: 99%