Effects of moisture and temperature on greenhouse gas emissions and C and N leaching losses in soil treated with biogas slurry

Sänger, Anja; Geisseler, Daniel; Ludwig, Bernard

doi:10.1007/s00374-010-0528-y

Cited by 51 publications

(19 citation statements)

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“…Considering the CO2 emission trend in the 48 h after injection, our data are in line with studies carried out in laboratory conditions by Sänger et al (2011), who monitored a rapid soil CO2 production increase after biogas slurry application, and Grigatti et al (2011) who reported, after digestate application, a very intensive CO2 emission in the first 24 h of soil incubation, followed by a reduction to a value close to the control. de la Fuente et al (2013), again in a laboratory study, monitored a rapid soil CO2 emission decrease in the days after liquid digestate application and, after three weeks, CO2 emission values similar to those measured in the control soil.…”

Section: Soil Co 2 Emissionssupporting

confidence: 76%

“…Several laboratory scale studies investigated the effect of soil amendment with digestate on CO2, CH4 and N2O emissions (Cayuela et al, 2010;Grigatti et al, 2011;Sänger et al, 2011;Alburquerque et al, 2012a;de la Fuente et al, 2013;Johansen et al, 2013). A limited number of studies reported results obtained in open field conditions, mainly focusing on CH4, N2O and NH3 emissions, comparing the effect of anaerobically digested and undigested slurries or different digestate soil distribution techniques (Rubaek et al, 1996;Petersen, 1999;Wulf et al, 2002;Dieterich et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, digestate can be considered as organic amendment or organic fertiliser when properly handled and managed (Nkoa, 2014). In fact, the application of organic matter to agricultural soils stimulates microbial activity, increasing greenhouse gases emission (Bol et al, 2003;Fangueiro et al, 2010), thus requiring the application of appropriate agronomic techniques for greenhouse gases emission mitigation (Pezzolla et al, 2012).Several laboratory scale studies investigated the effect of soil amendment with digestate on CO2, CH4 and N2O emissions (Cayuela et al, 2010;Grigatti et al, 2011;Sänger et al, 2011;Alburquerque et al, 2012a;de la Fuente et al, 2013;Johansen et al, 2013). A limited number of studies reported results obtained in open field conditions, mainly focusing on CH4, N2O and NH3 emissions, comparing the effect of anaerobically digested and undigested slurries or different digestate soil distribution techniques (Rubaek et al, 1996;Petersen, 1999;Wulf et al, 2002;Dieterich et al, 2012).…”

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confidence: 99%

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Effect of injection depth of digestate liquid fraction on soil carbon dioxide emission and maize biomass production

2016

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The aim of this study was to evaluate, in open field conditions, the effect of injection depth of digestate liquid fraction (10 cm, 25 cm and 35 cm) in clay loam soil, on CO2 emission. An un-amended soil was considered as control. The study was performed in 2014 on a farm located in Terrasa Padovana, Veneto region (Italy) distributing digestate before maize sowing.Digestate injection determined a high soil CO2 emission in the first hour after application, followed by a progressive reduction in as early as 24 h, reaching significantly lower values, similar to those measured in the un-amended control, after 48 h. Gas emissions measured 1 h after digestate application decreased as injection depth increased with significantly higher emission values in the 10 cm treatment (median value 23.7 g CO2 m -2 h -1 ) than in the 35 cm one (median value 2.5 g CO2 m -2 h -1 ). In the 3 days between digestate distribution and maize sowing, soil CO2 emission was significantly higher in the amended treatments than un-amended one, with median values of 1.53 g CO2 m -2 h -1 and 0.46 g CO2 m -2 h -1 respectively. During maize growing season, no significant soil CO2 emission difference was monitored among treatments, with a median value of 0.33 g CO2 m -2 h -1 .Digestate application significantly improved maize aboveground dry biomass with an average yield of 22.0 Mg ha -1 and 16.2 Mg ha -1 in amended and un-amended plots, respectively, due to the different amount of nutrients supplied. IntroductionIntensive soil fertilisation with mineral fertilisers has led to several issues, like loss of soil carbon (C), and nitrogen (N) leaching (Borin et al., 1997;Nardi et al., 2004;Morari et al., 2006). Fertilisation with organic wastes therefore represents an alternative for sustainable agriculture (Casacchia et al., 2012;Marchetti et al., 2012;Morra et al., 2013;Barbera et al., 2013;Nkoa, 2014). In this context the agricultural reuse of digestate, organic waste product of biogas plants, should be considered. Furthermore, the sustainability of biogas production may depend on an appropriate end-use of the downstream effluents of anaerobic digestion, which should be treated, disposed of, or re-used in a proper way, avoiding any environmental impact (de la Fuente et al., 2013). Digested waste materials present some advantages for their use as soil amendments in comparison with untreated wastes, such as greater microbial stability and hygiene and a higher NH4 + -N amount (Holm-Nielsen et al., 2009;Alburquerque et al., 2012b;Möller and Müller, 2012). Therefore, digestate can be considered as organic amendment or organic fertiliser when properly handled and managed (Nkoa, 2014). In fact, the application of organic matter to agricultural soils stimulates microbial activity, increasing greenhouse gases emission (Bol et al., 2003;Fangueiro et al., 2010), thus requiring the application of appropriate agronomic techniques for greenhouse gases emission mitigation (Pezzolla et al., 2012).Several laboratory scale studies investigated the effect of so...

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Section: Soil Co 2 Emissionssupporting

confidence: 76%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Effect of injection depth of digestate liquid fraction on soil carbon dioxide emission and maize biomass production

2016

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“…However, the effects on single treatment and handling steps differentiate (e.g., manure handling, manure storage, field spreading) and are strongly dependent on the design of Derived from results in greenhouse or growth chamber pot experiments (Goberna et al 2011;Sänger et al 2010Sänger et al , 2011Walsh et al 2012a) or from theoretical approaches (Ørtenblad 2002;Dalgaard et al 2004), it is often hypothesized that the nitrate leaching risk after field spreading of digestates is lower than after spreading of the undigested manure. The statements are deducted from the assumed better match of N supply and crop N demand, as a consequence of the higher ammonium-N/ total N share in digestates compared to the input feedstocks.…”

Section: Effects Of Anaerobic Digestion On Digestate Organic Matter Cmentioning

confidence: 99%

Effects of anaerobic digestion on soil carbon and nitrogen turnover, N emissions, and soil biological activity. A review

Möller¹

2015

Agron. Sustain. Dev.

240

139

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Sustainability in agriculture means the inclusion of several aspects, as sustainable agriculture systems must not compromise not only their ability to satisfy future needs by undermining soil fertility and the natural resource base but also sustainable agriculture has had to address a range of other issues including energy use, efficient use, and recycling of nutrients, the effects on adjacent ecosystems including the effects on water bodies and climate change. Organic manures are an important factor to keep the soil fertility level of soils. However, their management is often related to large emissions. In this context, anaerobic digestion is-similarly to composting-a treatment option for stabilization of biogenic wastes leading to a residual product called digestates, enabling the sanitation and the recycling and use as fertilizer. It is also a means to obtain energy from wastes as well as from dedicated energy crops. Therefore, anaerobic digestion potentially addresses several aspects of agricultural sustainability. This review discusses the current state of knowledge on the effects of anaerobic digestion on organic compounds in digestates and the most important processes influencing N emissions in the field, as well as the possible longterm effects on soil microbial biomass and soil fertility. The main findings are that (1) the direct effects of anaerobic digestion on long-term sustainability in terms of soil fertility and environmental impact at the field level are of minor relevance. (2) The most relevant effects of anaerobic digestion on soil fertility as well as on N emissions will be expected from indirect effects related to cropping system changes such as changes in crop rotation, crop acreage, cover cropping, and total amounts of organic manures including digestates. Furthermore, (3) the remaining organic fraction after anaerobic digestion is much more recalcitrant than the input feedstocks leading to a stabilization of the organic matter and a lower organic matter degradation rate after field application, enabling a similar reproduction of the soil organic matter as obtained by direct application of the feedstock or by composting of the feedstock. (4) Regarding emissions, the main direct effect of anaerobic digestion on a farm level is the influence on gaseous emissions during manure or digestate treatment and handling, whereas the direct effects of anaerobic digestion on a field level on emissions (NH 3 − and N 2 O − emissions, NO 3 -leaching) are negligible or at least ambiguous. (5) The main direct effects of anaerobic digestion on the field level are short-term effects on soil microbial activity and changes in the soil microbial community. Therefore, in terms of the effects on agricultural sustainability, potential cropping system-based changes induced by introduction of biogas plants are probably much more relevant for the overall performance and sustainability of the cropping system than the direct effects triggered by application of digestates in comparison to the undigested feedstock...

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“…An additional reason for reduced N concentration during winter might be enhanced denitrification induced by temporary anaerobic conditions under saturated soil conditions. Potential denitrification rate is predominantly (given suitable temperatures) determined by high nitrate concentrations in soil solution and by high soil moisture content which is likely to happen during the winter season (Blombäck et al, 2003;Martínková et al, 2011;Sänger et al, 2011).…”

Section: Climate Effectsmentioning

confidence: 99%

Effect of temperature and precipitation on nitrate leaching from organic cereal cropping systems in Denmark

Jabloun

Schelde

Tao

et al. 2015

European Journal of Agronomy

117

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a b s t r a c tThe effect of variation in seasonal temperature and precipitation on soil water nitrate (NO 3 N) concentration and leaching from winter and spring cereals cropping systems was investigated over three consecutive four-year crop rotation cycles from 1997 to 2008 in an organic farming crop rotation experiment in Denmark. Three experimental sites, varying in climate and soil type from coarse sand to sandy loam, were investigated. The experiment included experimental treatments with different rotations, manure rate and cover crop, and soil nitrate concentrations was monitored using suction cups. The effects of climate, soil and management were examined in a linear mixed model, and only parameters with significant effect (P < 0.05) were included in the final model. The model explained 61% and 47% of the variation in the square root transform of flow-weighted annual NO 3 N concentration for winter and spring cereals, respectively, and 68% and 77% of the variation in the square root transform of annual NO 3 N leaching for winter and spring cereals, respectively. Nitrate concentration and leaching were shown to be site specific and driven by climatic factors and crop management. There were significant effects on annual N concentration and NO 3 N leaching of location, rotation, previous crop and crop cover during autumn and winter. The relative effects of temperature and precipitation differed between seasons and cropping systems. A sensitivity analysis revealed that the predicted N concentration and leaching increased with increases in temperature and precipitation.

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Effects of moisture and temperature on greenhouse gas emissions and C and N leaching losses in soil treated with biogas slurry

Cited by 51 publications

References 25 publications

Effect of injection depth of digestate liquid fraction on soil carbon dioxide emission and maize biomass production

Effect of injection depth of digestate liquid fraction on soil carbon dioxide emission and maize biomass production

Effects of anaerobic digestion on soil carbon and nitrogen turnover, N emissions, and soil biological activity. A review

Effect of temperature and precipitation on nitrate leaching from organic cereal cropping systems in Denmark

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