Trace gases are those that are present in the atmosphere at relatively low concentrations. Small changes in their concentrations can have profound implications for major atmospheric fluxes, and thereore, can be used as indicators in studies of global change, global biogeochemical cycling and global warming. This new how-to guide will detail the concepts and techniques involved in the detection and measurement of trace gases, and the impact they have on ecological studies. Introductory chapters look at the role of trace gases in global cycles, while later chapters go on to consider techniques for the measurement of gases in various environments and at a range of scales. A how-to guide for measuring atmospheric trace gases. Techniques described are of value in addressing current concerns over global climate change.

Trace gases are those that are present in the atmosphere atrelatively low concentrations. Small changes in theirconcentrations can have profound implications for major atmosphericfluxes, and thereore, can be used as indicators in studies ofglobal change, global biogeochemical cycling and global warming.This new how-to guide will detail the concepts and techniquesinvolved in the detection and measurement of trace gases, and theimpact they have on ecological studies. Introductory chapters lookat the role of trace gases in global cycles, while later chaptersgo on to consider techniques for the measurement of gases invarious environments and at a range of scales.* A how-to guide for measuring atmospheric trace gases.* Techniques described are of value in addressing currentconcerns over global climate change.

List of Contributors.The Methods in Ecology Series.Preface.Trace Gas Exchange In An Ecosystem Context: Multiple ApproachesFor Measurement And Analysis.Enclosure-Based Measurement Of Trace Gas Exchange: ApplicationsAnd Sources Of Error.Trace Gas Exchange Across The Air-Water Interface In FreshwaterAnd Coastal Marine Environments.Trace Gas Exchange In Freshwater And Coastal MarineEnvironments: Ebullition And Transpost By Plants.Micrometeorological Techniques For MeasuringBiosphere-Atmosphere Trace Gas Exchange.Standard Analytical Methods For Measuring Trace Gases In TheEnvironment.Measurements Of Chemically Reactive Trace Gases At AmbientConcentrations.Recent Advances In Spectroscopic Instrumentation For MeasuringStable Gases In The Natural Environment.Use Of Isotopes And Tracers In The Study Of Emissions AndConsumption Of Trace Gases In Terrestrial Environments.Microbial Processes Of Production And Consumption Of NitricOxide, Nitrous Oxide And Methane.Process Modelling And Spatial Extrapolation.Index.