Technical Note: Semi-rigid chambers for methane gas flux measurements on tree stems

Siegenthaler, Andy; Welch, Bertie; Pangala, Sunitha R.; Peacock, Michael; Gauci, Vincent

doi:10.5194/bg-13-1197-2016

Articles | Volume 13, issue 4

https://doi.org/10.5194/bg-13-1197-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/bg-13-1197-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 13, issue 4

Technical note

|

26 Feb 2016

Technical note |

| 26 Feb 2016

Technical Note: Semi-rigid chambers for methane gas flux measurements on tree stems

Andy Siegenthaler, Bertie Welch, Sunitha R. Pangala, Michael Peacock, and Vincent Gauci

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Sep 2015	75	19	2	96
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Nov 2015	33	30	0	63
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Jan 2016	27	9	4	40
Feb 2016	153	51	7	211
Mar 2016	103	43	2	148
Apr 2016	32	17	1	50
May 2016	34	13	4	51
Jun 2016	19	9	6	34
Jul 2016	14	7	1	22
Aug 2016	13	5	1	19
Sep 2016	20	8	1	29
Oct 2016	19	5	0	24
Nov 2016	10	4	3	17
Dec 2016	8	4	0	12
Jan 2017	27	14	0	41
Feb 2017	10	2	1	13
Mar 2017	18	10	1	29
Apr 2017	33	17	3	53
May 2017	30	16	3	49
Jun 2017	32	19	2	53
Jul 2017	20	10	2	32
Aug 2017	6	5	1	12
Sep 2017	13	9	1	23
Oct 2017	6	13	0	19
Nov 2017	8	12	0	20
Dec 2017	21	10	1	32
Jan 2018	9	9	1	19
Feb 2018	10	20	0	30
Mar 2018	15	21	0	36
Apr 2018	10	7	1	18
May 2018	9	8	0	17
Jun 2018	11	9	0	20
Jul 2018	19	13	3	35
Aug 2018	13	11	0	24
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Oct 2018	21	22	4	47
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Jan 2019	16	21	2	39
Feb 2019	30	5	1	36
Mar 2019	27	15	2	44
Apr 2019	27	15	2	44
May 2019	30	11	2	43
Jun 2019	29	14	0	43
Jul 2019	25	11	2	38
Aug 2019	31	12	0	43
Sep 2019	33	10	0	43
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Nov 2019	34	7	0	41
Dec 2019	40	9	0	49
Jan 2020	43	17	2	62
Feb 2020	30	5	0	35
Mar 2020	39	11	0	50
Apr 2020	40	18	5	63
May 2020	37	9	0	46
Jun 2020	50	11	1	62
Jul 2020	46	21	10	77
Aug 2020	36	17	6	59
Sep 2020	41	11	1	53
Oct 2020	46	18	4	68
Nov 2020	28	9	1	38
Dec 2020	46	14	4	64
Jan 2021	59	21	7	87
Feb 2021	41	20	3	64
Mar 2021	37	17	3	57
Apr 2021	58	19	3	80
May 2021	54	24	5	83
Jun 2021	52	21	4	77
Jul 2021	46	19	6	71
Aug 2021	49	28	6	83
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Oct 2021	37	28	0	65
Nov 2021	43	32	0	75
Dec 2021	69	19	2	90
Jan 2022	42	19	2	63
Feb 2022	39	15	1	55
Mar 2022	52	21	4	77
Apr 2022	42	7	1	50
May 2022	38	13	1	52
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Oct 2022	19	11	4	34
Nov 2022	23	14	0	37
Dec 2022	40	7	1	48
Jan 2023	45	22	3	70
Feb 2023	26	15	2	43
Mar 2023	51	25	2	78
Apr 2023	29	16	1	46
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Jun 2023	63	16	2	81
Jul 2023	58	11	1	70
Aug 2023	50	7	2	59
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Oct 2023	204	12	2	218
Nov 2023	140	3	1	144
Dec 2023	57	4	1	62
Jan 2024	52	17	2	71
Feb 2024	42	4	0	46
Mar 2024	47	11	5	63
Apr 2024	47	13	1	61
May 2024	55	16	2	73
Jun 2024	48	11	2	61
Jul 2024	86	28	4	118
Aug 2024	138	44	2	184
Sep 2024	39	17	0	56
Oct 2024	49	9	0	58
Nov 2024	46	18	1	65
Dec 2024	49	22	2	73
Jan 2025	55	17	1	73
Feb 2025	62	12	0	74
Mar 2025	58	7	1	66
Apr 2025	73	16	1	90
May 2025	66	6	1	73
Jun 2025	64	16	0	80
Jul 2025	23	22	2	47
Aug 2025	39	16	2	57
Sep 2025	26	11	1	38
Oct 2025	32	17	1	50
Nov 2025	6	4	0	10

Cumulative views and downloads (calculated since 29 Sep 2015)

Month	HTML	PDF	XML	Total
Sep 2015	75	19	2	96
Oct 2015	46	32	2	80
Nov 2015	33	30	0	63
Dec 2015	8	4	1	13
Jan 2016	27	9	4	40
Feb 2016	153	51	7	211
Mar 2016	103	43	2	148
Apr 2016	32	17	1	50
May 2016	34	13	4	51
Jun 2016	19	9	6	34
Jul 2016	14	7	1	22
Aug 2016	13	5	1	19
Sep 2016	20	8	1	29
Oct 2016	19	5	0	24
Nov 2016	10	4	3	17
Dec 2016	8	4	0	12
Jan 2017	27	14	0	41
Feb 2017	10	2	1	13
Mar 2017	18	10	1	29
Apr 2017	33	17	3	53
May 2017	30	16	3	49
Jun 2017	32	19	2	53
Jul 2017	20	10	2	32
Aug 2017	6	5	1	12
Sep 2017	13	9	1	23
Oct 2017	6	13	0	19
Nov 2017	8	12	0	20
Dec 2017	21	10	1	32
Jan 2018	9	9	1	19
Feb 2018	10	20	0	30
Mar 2018	15	21	0	36
Apr 2018	10	7	1	18
May 2018	9	8	0	17
Jun 2018	11	9	0	20
Jul 2018	19	13	3	35
Aug 2018	13	11	0	24
Sep 2018	12	12	0	24
Oct 2018	21	22	4	47
Nov 2018	15	10	2	27
Dec 2018	10	14	2	26
Jan 2019	16	21	2	39
Feb 2019	30	5	1	36
Mar 2019	27	15	2	44
Apr 2019	27	15	2	44
May 2019	30	11	2	43
Jun 2019	29	14	0	43
Jul 2019	25	11	2	38
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Oct 2019	42	13	1	56
Nov 2019	34	7	0	41
Dec 2019	40	9	0	49
Jan 2020	43	17	2	62
Feb 2020	30	5	0	35
Mar 2020	39	11	0	50
Apr 2020	40	18	5	63
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Jul 2020	46	21	10	77
Aug 2020	36	17	6	59
Sep 2020	41	11	1	53
Oct 2020	46	18	4	68
Nov 2020	28	9	1	38
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Jan 2021	59	21	7	87
Feb 2021	41	20	3	64
Mar 2021	37	17	3	57
Apr 2021	58	19	3	80
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Jun 2021	52	21	4	77
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Nov 2022	23	14	0	37
Dec 2022	40	7	1	48
Jan 2023	45	22	3	70
Feb 2023	26	15	2	43
Mar 2023	51	25	2	78
Apr 2023	29	16	1	46
May 2023	46	17	0	63
Jun 2023	63	16	2	81
Jul 2023	58	11	1	70
Aug 2023	50	7	2	59
Sep 2023	94	7	0	101
Oct 2023	204	12	2	218
Nov 2023	140	3	1	144
Dec 2023	57	4	1	62
Jan 2024	52	17	2	71
Feb 2024	42	4	0	46
Mar 2024	47	11	5	63
Apr 2024	47	13	1	61
May 2024	55	16	2	73
Jun 2024	48	11	2	61
Jul 2024	86	28	4	118
Aug 2024	138	44	2	184
Sep 2024	39	17	0	56
Oct 2024	49	9	0	58
Nov 2024	46	18	1	65
Dec 2024	49	22	2	73
Jan 2025	55	17	1	73
Feb 2025	62	12	0	74
Mar 2025	58	7	1	66
Apr 2025	73	16	1	90
May 2025	66	6	1	73
Jun 2025	64	16	0	80
Jul 2025	23	22	2	47
Aug 2025	39	16	2	57
Sep 2025	26	11	1	38
Oct 2025	32	17	1	50
Nov 2025	6	4	0	10

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Short summary

There is increasing interest in measuring methane emissions from tree stems in a wide range of ecosystems. This is commonly done with bulky closed chambers, which limit measurement to a very narrow range of tree stem sizes and shapes. We designed, described and tested new semi-rigid stem-flux chambers with decisive advantages (reduced permeability, fast deployment, adapted headspace volume, easy to carry in multiple sizes, extremely light and economical) ideal for use in remote ecosystems.