دورية أكاديمية
Technical note: Skirt chamber – an open dynamic method for the rapid and minimally intrusive measurement of greenhouse gas emissions from peatlands
| العنوان: | Technical note: Skirt chamber – an open dynamic method for the rapid and minimally intrusive measurement of greenhouse gas emissions from peatlands |
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| المؤلفون: | F. Thalasso, B. Riquelme, A. Gómez, R. Mackenzie, F. J. Aguirre, J. Hoyos-Santillan, R. Rozzi, A. Sepulveda-Jauregui |
| المصدر: | Biogeosciences, Vol 20, Pp 3737-3749 (2023) |
| بيانات النشر: | Copernicus Publications, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Ecology LCC:Life LCC:Geology |
| مصطلحات موضوعية: | Ecology, QH540-549.5, Life, QH501-531, Geology, QE1-996.5 |
| الوصف: | We present a reliable and robust open dynamic chamber for measuring greenhouse gas exchange in peatlands with minimal disturbance of the ground. This chamber, called the “skirt chamber”, is based on a transparent plastic film placed above an open frame made of sparse interwoven wires and expanded around the base of the chamber below a steel chain that ensures contact to the ground, avoiding damage, trenching, and cutting vegetation. Gas exchange is determined using a portable gas analyzer from a mass balance in which the imperfect sealing of the chamber to the ground is quantified through the injection of a methane pulse. The method was tested on a pristine peatland dominated by Sphagnum magellanicum located on Navarino Island in the subantarctic Magellanic ecoregion in Chile. Our results indicate that the skirt chamber allowed the determination of methane fluxes and ecosystem respiration in about 20 min, with a limit of detection of 0.185 mg CH4 m−2 h−1 and 173 mg CO2 m−2 h−1, respectively. We conclude that the skirt chamber is a minimally intrusive, fast, portable, and inexpensive method that allows the quantification of greenhouse gas emissions with high spatial resolution in remote locations and without delay. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1726-4170 1726-4189 |
| Relation: | https://bg.copernicus.org/articles/20/3737/2023/bg-20-3737-2023.pdf; https://doaj.org/toc/1726-4170; https://doaj.org/toc/1726-4189 |
| DOI: | 10.5194/bg-20-3737-2023 |
| URL الوصول: | https://doaj.org/article/fdd925d2904b4bd389a2b9e5c9e678a6 |
| رقم الأكسشن: | edsdoj.fdd925d2904b4bd389a2b9e5c9e678a6 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 17264170 17264189 |
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| DOI: | 10.5194/bg-20-3737-2023 |