Comparison of methane, nitrous oxide fluxes and CO2 respiration rates from a Mediterranean cork oak ecosystem and improved pasture

Technical Note: Differences in the diurnal pattern of soil respiration under adjacent <i>Miscanthus x giganteus</i> and barley crops reveal potential flaws in accepted sampling strategies

“…R s is generally accepted to be largely controlled by soil temperature (Bond-Lamberty and Thomson, 2010) with the consequence that many studies consider it sufficient to use a single simultaneous daily measurement of R s to test for differences between different land uses or vegetation types and to extrapolate long-term budgets, (e.g. Barrena et al, 2013;Finocchiaro et al, 2014;Gauder et al, 2012;Johnson et al, 2010;Shvaleva et al, 2014;von Arnold et al, 2005;Zhang et al, 2013). Whilst the importance of selecting appropriate and synchronous sampling times is commonly recognised, measurement "windows" often vary across two hours (Kessavalou et al, 1998;Zhang et al, 2013) to as much as seven (Finocchiaro et al, 2014) or even eight hours (Gao et al, 2014), generally between 09:00-16:00; however, none of these cited studies provided any data to support these windows which are largely based on minimising time delays between comparisons and assumptions that minimised temperature changes are the key to measurement parity.…”

Environmental and microbial factors influencing methane and nitrous oxide fluxes in Mediterranean cork oak woodlands: trees make a difference

“…Soil moisture is important for induction of CH 4 oxidation and regulation of CH 4 uptake in soil ( Bender and Conrad, 1995 ; Shrestha et al, 2012 ). However, methanotrophs are poorly known in temporally dry Mediterranean soils and little is known about how wet-dry cycles influence methanotroph activity and abundance under different vegetation covers ( Castaldi and Fierro, 2005 ; Castaldi et al, 2007 ; Shvaleva et al, 2014 ).…”

Influence of soil properties and burial depth on Persian oak (Quercus brantii Lindl.) establishment in different microhabitats resulting from traditional forest practices

“…-4 DOI: 10.1007//link.springer.com/article/10. /s10342-017-1029 bulk density (Shukla et al 2006;Pereira et al 2007;Shvaleva et al 2014;Lafleur et al 2015;Patrick et al 2015). These changes can improve the growth and physiology of seedlings (Dickie et al 2007).…”