6th WCSET-2017 at Indonesia 

 

Technical Session 2:

Title:         Development of the Continuous Monitoring System for Measuring the Soil Surface CO2 Flux
Authors:    Salmawati, Kyuro Sasaki, Yuichi Sugai
Abstract:   Measuring the soil surface carbon dioxide (CO2) flux is an important parameter to quantify the natural emitted CO2 from the soil layers. It is one of the major sources in carbon circulation on the Earth which has a possibility to enhance the global warming phenomena if soil temperature increase with the atmospheric temperature. Measurement methods such as static and dynamic chamber are routinely methods encountered which either manual or automatic. In this study, an automated continuous monitoring system for measuring soil CO2 flux (SCO2-ACMS) is proposed not only to mitigate the limitations of the manual approach, but also to understand the surface CO2 flux behaviour. Its principle is similar to the dynamic close-chamber method and it is being tested since December 2016 on Ito Natural Analogue Site (INAS) in Kyushu University, Japan. Herein, the present measurement methodology of the SCO2-ACMS would be discussed. The results of the soil temperature profiles and moisture content are presented as well. Both parameters were measured continuously as they were attached to the SCO2-ACMS. A comparative analysis of SCO2-ACMS results was performed by conducting a manual close-chamber method using a hemispherical chamber-gas pump-gas analyser cycle system. This was conducted to study the feasibility of the SCO2-ACMS as a surface monitoring device.

Keywords:  SCO2-ACMS, Soil, Surface CO2 Flux
Pages:       053-056

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