Measurement
- Version 1 of 1
Measurement Data Component
Title: Daily nitrous oxide flux measurements: AC0111, Cambridgeshire, 2010-2011
Related Party - Organisation (Author): ADAS
Related Party - Organisation (Funder): Defra
Abstract:
An experiment was carried out at ADAS Boxworth (Cambridgeshire, average annual rainfall 550mm) on a clay/clay loam soil (35% clay) in harvest season 2011. Cattle slurry (c.55m3/ha) was applied to field-scale (12 m x 48 m) hydrologically isolated plots using trailing hose equipment at three different timings in August 2010 (to stubble), September 2010 (post emergence of winter oilseed rape) and February 2011 (to a growing winter oilseed rape crop). Each plot was drained with lateral drains at 24 m spacing and 90 cm depth, with gravel backfill to within 30 cm of the surface and secondary mole drains installed at right angles to the lateral drains at 50 cm depth and 2 m spacing. There were 3 replicates of each treatment arranged in a randomised block design. At each application timing a replicate control plot, receiving no slurry, was also established on each of the slurry treatments. Direct nitrous oxide emissions were measured from each treatment and the untreated control for 12 months using the static chamber technique (5 chambers per plot). This dataset is of daily nitrous oxide flux (g N2O-N/ha/d) measurements. The first measurement is a 'background' measurement, which was measured in the morning before any treatments were applied in the afternoon. If the data file is downloaded/opened in excel, dates may appear as dd-mm-yy instead of the standard yy-mm-dd.
Subject Keywords: Nitrous oxide; Cattle slurry; Arable land; Clay soils
Geographic Keywords: Cambridgeshire
Observed Properties: Date; Experimental blocking; Experimental treatment; Nitrous oxide mass flux; Year
Parameter: Block number
Parameter: Daily nitrous oxide emission
Parameter: Measurement date
Parameter: Treatment
Parameter: Year experiment started
Geographic Extent - Longitude (West): -0.16 Longitude (East): 0.11 Latitude (South): 52.19 Latitude (North): 52.35 |
Phenomenon Time - Start Date/Time: 2010-08-18 End Date/Time: 2012-02-15
Result Time: 2012-02-15
Valid Time - Start Date/Time: 2010-08-18 End Date/Time: 2012-02-15
Feature of Interest: biosphere
Publication Date: 2017-04-11
This data is made available under the terms of the FBA Licence.
Total file downloads: 94
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