Verification of an in‐situ method for measuring denitr1f1cation (original) (raw)

Communications in Soil Science and Plant Analysis, 1994

Abstract

ABSTRACT The most common direct in‐situ method for the measurement of soil denitrification requires many acetylene (C2H2) supply probes and airflow lines to measure nitrous oxide (N2O) flux from the soil under a sealed cover. A modification to this method simplified C2H2 supply by placing a single acetylene supply probe 30 cm deep into the soil and measured soil N2O emission flux over a 0.11 m area. Acetylene concentrations ranging from 0.1–10.0% were readily and predictably established by radial diffusion from the supply probe. Over 94% of the N2O released into the enclosed air space of the soil cover was recovered at an air flow rate of 21 L/h. Recovery decreased rapidly with increased flow rates of 31 and 37 L/h.

Howard Woodard hasn't uploaded this paper.

Let Howard know you want this paper to be uploaded.

Ask for this paper to be uploaded.