How Similar Should my Soil Respiration Measurements Be? – A Look at Field Site Spatial Variability

How Similar Should my Soil Respiration Measurements Be? – A Look at Field Site Spatial Variability

Introduction Measuring greenhouse gas emissions in natural and controlled ecosystems can be notoriously tricky, both because of spatial heterogeneity and the highly dynamic systems which are responding to drivers (temperature, moisture, sunlight, etc.) on multiple time scales. This often makes direct comparison between measurement locations and across differing flux measurement instruments and methodologies impractical, if […]

Minimum Detectable (Soil) Flux: Part 3

Minimum Detectable (Soil) Flux: Part 3

Part three of the three part series. Here are Part 1 and Part 2. Download the complete article (PDF). Extending minimum detectable flux to high-frequency measurements As discussed previously, the MDF metric provides a useful experimental design and quality control criteria for flux measurements. However, it can be extended from the original formulation to show […]

Minimum Detectable (Soil) Flux: Part 1

Minimum Detectable (Soil) Flux: Part 1

Part one of a three part series. Evaluating gas emission measurements using minimum detectable flux (MDF) Traditional vial-and-syringe-type measurements of closed chamber trace gas fluxes have provided researchers with massive amounts of insight into ecosystems ranging from old growth forests to heavily managed agricultural fields. However, anyone who has ever collected these types of gas […]

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