Spatial variations in terrestrial net ecosystem productivity and its local indicators

Cui, Erqian; Bian, Chenyu; Luo, Yiqi; Niu, Shuli; Wang, Yingping; Xia, Jianyang

doi:https://doi.org/10.5194/bg-17-6237-2020

Articles | Volume 17, issue 23

https://doi.org/10.5194/bg-17-6237-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-17-6237-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 23

Research article

|

09 Dec 2020

Research article |

| 09 Dec 2020

Spatial variations in terrestrial net ecosystem productivity and its local indicators

Erqian Cui, Chenyu Bian, Yiqi Luo, Shuli Niu, Yingping Wang, and Jianyang Xia

Supplement

https://doi.org/10.5194/bg-17-6237-2020-supplement

Data sets

FLUXNET2015 dataset Lawrence Berkeley National Laboratory https://fluxnet.fluxdata.org/data/fluxnet2015-dataset/

Compensatory water effects link yearly global land CO2 sink changes to temperature (https://www.bgc-jena.mpg.de/geodb/projects/Home.php) M. Jung, M. Reichstein, C. R. Schwalm, C. Huntingford, S. Sitch, A. Ahlström, A. Arneth, G. Camps-Valls, P. Ciais, P. Friedlingstein, F. Gans, K. Ichii, A. K. Jain, E. Kato, D. Papale, B. Poulter, B. Raduly, C. Rödenbeck, G. Tramontana, N. Viovy, Y. Wang, U. Weber, S. Zaehle, and N. Zeng https://doi.org/10.1038/nature20780

How does the terrestrial carbon exchange respond to inter-annual climatic variations? A quantification based on atmospheric CO2 data (http://www.bgc-jena.mpg.de/CarboScope/?ID=s) C. Rödenbeck, S. Zaehle, R. Keeling, and M. Heimann https://doi.org/10.5194/bg-15-2481-2018

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Short summary

Mean annual net ecosystem productivity (NEP) is related to the magnitude of the carbon sink of a specific ecosystem, while its inter-annual variation (IAV_NEP) characterizes the stability of such a carbon sink. Thus, a better understanding of the co-varying NEP and IAV_NEP is critical for locating the major and stable carbon sinks on land. Based on daily NEP observations from eddy-covariance sites, we found local indicators for the spatially varying NEP and IAV_NEP, respectively.