Water-filled pore space (WFPS) can exert an important control on microbial production and consumption of these gases. We examined the impact of WFPS on emissions of CO2, CH4, N2O, and N2 in soil microcosms receiving septic tank effluent (STE) or effluent from a single-pass sand filter (...
Optimizing soil microbial activity requires an equal balance between waterand air‐filled porosity, that is, 50% water‐filled pore space (WFPS). However, many soil biological investigations report water as some fraction of water﹉olding capacity (WHC). This study was conducted to fill a ...
Maximum C and N mineralizations were observed at 70-80% and 50% water-filled pore space (WFPS), respectively. The ranges of WFPS for C and N mineralization were the narrowest among other measurements of water content. Therefore, it was likely that a single WFPS could be used in ...
autotrophic nitrification and heterotrophic nitrification in a fertilised (200 kg N ha−1) silt loam soil at contrasting (20–70%) water-filled pore space (WFPS).15N-N2O emissions from14NH415NO3replicates were attributed
NO production in soils is controlled by water-filled pore space (WFPS) and substrate availability (NO). Here we show that extreme precipitation (80 mm rainfall in 48 h) after a long dry period, led to a week-long peak in NO emissions (up to about 2200 渭g NO-N mh). In the ...
SOM soil organic matter VWC volumetric water content WFPS water filled pore space Keywords Carbon dioxide Groundwater level Methane Nitrous oxide Peat oxidation Pore water Shrinkage 1. Introduction Peatlands are formed under wet, anaerobic conditions and are characterized by a high soil organic matter...
followed by 8 days with no more than 2 mm of rain daily. In contrast, June 2015 had a similar monthly rainfall amount to June 2014, but distributed in equal and more frequent events. Consequentially, in 2015, soil water-filled pore space (WFPS) in the top 10 cm of the soil was...
The SR rate was fitted with groundwater level (GWL) to the equation of log(SR) = ± GWL using hierarchical Bayesian analysis where ± and were regression coefficients classified by GWL changing directions (drying, rewetting and fluctuating), water-filled pore space (WFPS) ranges in topsoil (...
Net N mineralization increased with incubation time and legume addition and varied curvilinearly with water-filled pore space (WFPS). Logistic functions were generated to establish the relationships between net N mineralization and WFPS (%) and to calculate LLWR and NLWR. The mean NLWR was ...
8b). When the pore water was partially filled, more meniscus of water was formed near the crack tip during the loading process, and the Stefan strengthening effect was gradually enhanced (Zheng and Li 2004; Jiang et al 2021). Therefore, the DTSs of the rock specimens exhibited a ...