| 45471 |
Creator |
974e4843c2192d7cff8913fe9460740b |
| 45471 |
Creator |
9afccdbe975e25965953e777bb4d6a5f |
| 45471 |
Creator |
77f2660608975f4afe2bd2c94b5a0083 |
| 45471 |
Creator |
98197f3040ef39bdbde8dea93072325a |
| 45471 |
Creator |
c443c2b77dae4a46899f237cebd0acb4 |
| 45471 |
Date |
2016-02-26 |
| 45471 |
Is Part Of |
repository |
| 45471 |
Is Part Of |
p17264189 |
| 45471 |
abstract |
There is increasing interest in the measurement of methane (CH<sub>4</sub>) emissions
from tree stems in a wide range of ecosystems so as to determine how they contribute
to the total ecosystem flux. To date, tree CH<sub>4</sub> fluxes are commonly measured
using rigid closed chambers (static or dynamic), which often pose challenges as these
are bulky and limit measurement of CH<sub>4</sub> fluxes to only a very narrow range
of tree stem sizes and shapes. To overcome these challenges we aimed to design and
test new semi-rigid stem-flux chambers (or sleeves). We compared the CH<sub>4</sub>
permeability of the new semi-rigid chambers with that of the traditional rigid chamber
approach, in the laboratory and in the field, with continuous flow or syringe injections.
We found that the semi-rigid chambers had reduced gas permeability and optimal stem
gas exchange surface to total chamber volume ratio (S<sub>c</sub> / V<sub>tot</sub>)
better headspace mixing, especially when connected in a dynamic mode to a continuous
flow gas analyser. Semi-rigid sleeves can easily be constructed and transported in
multiple sizes, are extremely light, cheap to build and fast to deploy. This makes
them ideal for use in remote ecosystems where access logistics is complicated. |
| 45471 |
authorList |
authors |
| 45471 |
status |
peerReviewed |
| 45471 |
uri |
http://data.open.ac.uk/oro/document/411139 |
| 45471 |
uri |
http://data.open.ac.uk/oro/document/411141 |
| 45471 |
uri |
http://data.open.ac.uk/oro/document/411143 |
| 45471 |
uri |
http://data.open.ac.uk/oro/document/411144 |
| 45471 |
uri |
http://data.open.ac.uk/oro/document/411145 |
| 45471 |
uri |
http://data.open.ac.uk/oro/document/411146 |
| 45471 |
uri |
http://data.open.ac.uk/oro/document/412594 |
| 45471 |
uri |
http://data.open.ac.uk/oro/document/652025 |
| 45471 |
uri |
http://data.open.ac.uk/oro/document/652026 |
| 45471 |
volume |
13 |
| 45471 |
type |
AcademicArticle |
| 45471 |
type |
Article |
| 45471 |
label |
Siegenthaler, Andy ; Welch, Bertie ; Pangala, Sunitha R. ; Peacock, Michael and
Gauci, Vincent (2016). Semi-rigid chambers for methane gas flux measurements on
tree stems. Biogeosciences, 13 pp. 1197–1207. |
| 45471 |
label |
Siegenthaler, Andy ; Welch, Bertie ; Pangala, Sunitha R. ; Peacock, Michael and Gauci,
Vincent (2016). Semi-rigid chambers for methane gas flux measurements on tree stems.
Biogeosciences, 13 pp. 1197–1207. |
| 45471 |
Title |
Semi-rigid chambers for methane gas flux measurements on tree stems |
| 45471 |
in dataset |
oro |