Articles | Volume 17, issue 24
https://doi.org/10.5194/bg-17-6309-2020
https://doi.org/10.5194/bg-17-6309-2020
Research article
 | 
15 Dec 2020
Research article |  | 15 Dec 2020

Variations in diurnal and seasonal net ecosystem carbon dioxide exchange in a semiarid sandy grassland ecosystem in China's Horqin Sandy Land

Yayi Niu, Yuqiang Li, Hanbo Yun, Xuyang Wang, Xiangwen Gong, Yulong Duan, and Jing Liu

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (21 Jul 2020) by Trevor Keenan
AR by Yuqiang Li on behalf of the Authors (07 Aug 2020)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (24 Aug 2020) by Trevor Keenan
RR by Anonymous Referee #3 (08 Sep 2020)
RR by Anonymous Referee #1 (13 Sep 2020)
ED: Reconsider after major revisions (23 Sep 2020) by Trevor Keenan
AR by Yuqiang Li on behalf of the Authors (26 Oct 2020)  Author's response   Manuscript 
ED: Publish as is (03 Nov 2020) by Trevor Keenan
AR by Yuqiang Li on behalf of the Authors (04 Nov 2020)  Manuscript 
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Short summary
We report the results from continuous year-round CO2 observations from a sandy grassland in the Horqin Sandy Land using the eddy covariance technique. To quantify the diurnal, seasonal, and annual variation in net ecosystem CO2 exchange, gross primary productivity, and ecosystem respiration and to identify the different scales of environmental factors and the underlying mechanisms, we also explored how the annual precipitation affects the net ecosystem CO2 exchange and its components.
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