Precipitation legacy effects on dryland ecosystem carbon fluxes: direction,  magnitude and biogeochemical carryovers

Shen, W.; Jenerette, G. D.; Hui, D.; Scott, R. L.

doi:10.5194/bg-13-425-2016

Articles | Volume 13, issue 2

https://doi.org/10.5194/bg-13-425-2016

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

https://doi.org/10.5194/bg-13-425-2016

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

Articles | Volume 13, issue 2

Research article

|

21 Jan 2016

Research article |

| 21 Jan 2016

Precipitation legacy effects on dryland ecosystem carbon fluxes: direction, magnitude and biogeochemical carryovers

W. Shen, G. D. Jenerette, D. Hui, and R. L. Scott

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Cumulative views and downloads (calculated since 01 Jul 2015)

Month	HTML	PDF	XML	Total
Jul 2015	71	74	1	146
Aug 2015	11	31	0	42
Sep 2015	5	9	1	15
Oct 2015	9	3	0	12
Nov 2015	10	7	0	17
Dec 2015	2	4	1	7
Jan 2016	102	37	4	143
Feb 2016	42	41	2	85
Mar 2016	45	39	2	86
Apr 2016	31	17	1	49
May 2016	20	13	3	36
Jun 2016	16	11	5	32
Jul 2016	12	8	1	21
Aug 2016	13	13	2	28
Sep 2016	20	10	2	32
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Dec 2016	2	1	1	4
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Feb 2017	18	17	2	37
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Apr 2017	25	22	3	50
May 2017	34	17	0	51
Jun 2017	34	17	0	51
Jul 2017	27	14	1	42
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Jun 2025	47	16	0	63
Jul 2025	36	10	3	49
Aug 2025	40	16	2	58
Sep 2025	32	14	2	48
Oct 2025	37	31	3	71
Nov 2025	9	4	0	13

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Short summary

This simulation study found that dry legacy imposed positive impacts on net ecosystem production (NEP) whereas wet legacy had negative impacts on NEP, indicating that dry legacy can foster more C sequestration and wet legacy more C release. The carryover of soil nitrogen was mainly responsible for the gross ecosystem production (GEP) responses, while the carryovers of plant biomass, litter and soil organic matter were mainly responsible for the ecosystem respiration (Re) responses.