Microbial responses and nitrous oxide emissions during wetting and drying of organically and conventionally managed soil under tomatoes

Burger, Martin; Jackson, Louise E.; Lundquist, E.J; Louie, D. T.; Miller, Robin L.; Rolston, Dennis E.; Scow, Kate M.

doi:10.1007/s00374-005-0007-z

Cited by 104 publications

(53 citation statements)

References 29 publications

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“…Thus, our result confirmed that higher CH 4 fluxes were observed from paddy soils where DOC contents were higher (Zou et al 2005;Yao et al 2012). Studies also showed that the higher level of DOC contents may have enhanced C availability thus controlled N 2 O emissions through its influence on nitrify and denitrifying activity (Burger et al 2005). Here in our study, N 2 O emissions from orchard plots were higher than those in the paddy plots, while reverse pattern for DOC concentrations.…”

Section: Effects Of Land Use Conversion On Soil Ch 4 and N 2 O Fluxessupporting

confidence: 88%

“…For paddy soils, soil temperature was not a sensitive factor to regulate N 2 O fluxes during our observing period. Generally, temperature regulated the N 2 O emissions through its influence on nitrifying and denitrifying activity (Burger et al 2005). However, this was in contrast with the finding from a similar study by Tang et al (2006), who only reported a reasonable correlation between soil moisture and N 2 O emissions.…”

Section: Dependence Of Soil Ch 4 and N 2 O On Soil Propertiesmentioning

confidence: 73%

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Effects of land use conversion and fertilization on CH4 and N2O fluxes from typical hilly red soil

Liu

et al. 2016

Environ Sci Pollut Res

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Land use conversion and fertilization have been widely reported to be important managements affecting the exchanges of greenhouse gases between soil and atmosphere. For comprehensive assessment of methane (CH 4 ) and nitrous oxide (N 2 O) fluxes from hilly red soil induced by land use conversion and fertilization, a 14-month continuous field measurement was conducted on the newly converted citrus orchard plots with fertilization (OF) and without fertilization (ONF) and the conventional paddy plots with fertilization (PF) and without fertilization (PNF). Our results showed that land use conversion from paddy to orchard reduced the CH 4 fluxes at the expense of increasing the N 2 O fluxes. Furthermore, fertilization significantly decreased the CH 4 fluxes from paddy soils in the second stage after conversion, but it failed to affect the CH 4 fluxes from orchard soils, whereas fertilizer applied to orchard and paddy increased soil N 2 O emissions by 68 and 113.9 %, respectively. Thus, cumulative CH 4 emissions from the OF were 100 % lower, and N 2 O emissions were 421 % higher than those from the PF. Although cumulative N 2 O emissions were stimulated in the newly converted orchard, the strong reduction of CH 4 led to lower global warming potentials (GWPs) as compared to the paddy. Besides, fertilization in orchard increased GWPs but decreased GWPs of paddy soils. In addition, measurement of soil moisture, temperature, dissolved carbon contents (DOCs), and ammonia (NH 4 + -N) and nitrate (NO 3 − -N) contents indicated a significant variation in soil properties and contributed to variations in soil CH 4 and N 2 O fluxes. Results of this study suggest that land use conversion from paddy to orchard would benefit for reconciling greenhouse gas mitigation and citrus orchard cultivation would be a better agricultural system in the hilly red soils in terms of greenhouse gas emission. Moreover, selected fertilizer rate applied to paddy would lead to lower GWPs of CH 4 and N 2 O. Nevertheless, more field measurements from newly converted orchard are highly needed to gain an insight into national and global accounting of CH 4 and N 2 O emissions.

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Section: Effects Of Land Use Conversion On Soil Ch 4 and N 2 O Fluxessupporting

confidence: 88%

Section: Dependence Of Soil Ch 4 and N 2 O On Soil Propertiesmentioning

confidence: 73%

Effects of land use conversion and fertilization on CH4 and N2O fluxes from typical hilly red soil

Liu

et al. 2016

Environ Sci Pollut Res

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“…7D) Burger et al 2005) would be more important. The liquid fertilizer source selected during the fertigation events (see Table 1) was based on availability and cost.…”

Section: Discussionmentioning

confidence: 99%

Spatiotemporal variation of event related N₂O and CH₄ emissions during fertigation in a California almond orchard

Alsina

Fanton-Borges

2013

Ecosphere

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Abstract. Nitrogen fertilizer applied to soil is the primary source of the greenhouse gas (GHG) nitrous oxide (N 2 O). The assessment of N 2 O emissions, or net fluxes of the GHG methane (CH 4 ), are lacking for upland, arid agricultural ecosystems worldwide. In California, where rates of application for nitrogen (N) can exceed 300 kg per hectare for N-intensive fruit and nut crops (.2 million acres), liquid N fertilizers applied through microirrigation systems (fertigation) represent the predominant method of N fertilization. Little information is available for how these concentrated and spatially discrete N solution applications influence N 2 O emissions and net CH 4 fluxes (the sum of methanogenic and methanotrophic activity). In this study we examined soil N 2 O-N emissions and net CH 4 fluxes for drip and stationary microsprinklers, two of the most widely used fertigation emitters, in an almond orchard where 235.5 kg N/ha were applied during the season of measurement (2009)(2010). We accomplished this by modeling the spatial patterns of N 2 O and CH 4 at the scale of meters and centimeters using simple mathematical approaches. For two applications of 33.6 kg/ha and three applications of 56.1 kg/ha targeted to the phenologic stages with highest tree N demand, the spatial patterns of N 2 O fluxes were similar to the emitter water distribution pattern and independent of temperature and fertilizer N form applied. Net CH 4 fluxes were extremely low and there was no discernible spatial pattern, but areas kept dry (driveways between tree rows) generally consumed CH 4 while it was produced in the microirrigation wet-up area. The N 2 O-N emissions for fertigation events at the scale of days, and over a season, were significantly higher from the drip irrigated orchard (1.6 6 0.7 kg N 2 O-N ha À1 yr À1) than a microsprinkler irrigated orchard (0.6 6 0.3 kg N 2 O-N ha À1 yr À1 ). N 2 O emissions and net CH 4 fluxes were only significantly correlated with soil water filled pore space and not with mineral-N. The correlation was much better for N 2 O emissions. Our results greatly improve our ability to scale N 2 O production to the orchard level, and provide growers with a tool for lowering almond orchard carbon and nitrogen footprints.

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“…Relationships between fatty acids and soil gas emissions have rarely been investigated and have so far been mainly limited to controlled laboratory experiments and microcosms (Burger et al 2005;Andersen and Petersen 2009).…”

Section: Introductionmentioning

confidence: 99%

Soil microbial community structure in a rice paddy field and its relationships to CH4 and N2O fluxes

Ferré

Zechmeister‐Boltenstern

Comolli

et al. 2012

Nutr Cycl Agroecosyst

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Microbial responses and nitrous oxide emissions during wetting and drying of organically and conventionally managed soil under tomatoes

Cited by 104 publications

References 29 publications

Effects of land use conversion and fertilization on CH4 and N2O fluxes from typical hilly red soil

Effects of land use conversion and fertilization on CH4 and N2O fluxes from typical hilly red soil

Spatiotemporal variation of event related N₂O and CH₄ emissions during fertigation in a California almond orchard

Soil microbial community structure in a rice paddy field and its relationships to CH4 and N2O fluxes

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Microbial responses and nitrous oxide emissions during wetting and drying of organically and conventionally managed soil under tomatoes

Cited by 104 publications

References 29 publications

Effects of land use conversion and fertilization on CH4 and N2O fluxes from typical hilly red soil

Effects of land use conversion and fertilization on CH4 and N2O fluxes from typical hilly red soil

Spatiotemporal variation of event related N2O and CH4 emissions during fertigation in a California almond orchard

Soil microbial community structure in a rice paddy field and its relationships to CH4 and N2O fluxes

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Spatiotemporal variation of event related N₂O and CH₄ emissions during fertigation in a California almond orchard