The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index.
Tracking the seasonal and inter-annual variations of global gross primary production during last four decades using satellite near-infrared reflectance data
Abstract
Terrestrial vegetation absorbs approximately 30% of the anthropogenic carbon dioxide (CO2) emitted into the atmosphere through photosynthesis (represented by gross primary productivity, GPP) and thus effectively mitigates global warming. However, large uncertainties still remain in the global GPP estimations and their long-term trends. Here we used the satellite-based near-infrared reflectance (NIRv) as the proxy of GPP and generated a global long-term (1982-2018) GPP datasets (hereafter GPPNIRv). Analysis at the site-level showed that NIRv could accurately capture both the monthly and annual variations in GPP (R2 = 0.71 and 0.74 respectively) at 104 flux sites. Upscaling the relationships between NIRv and GPP to the global scale, the global annual GPP was estimated to be 128.3 ± 4.0 Pg C yr-1 during the last four decades, which fell between the estimations from the machine-learning upscaling approach, light-use-efficiency (LUE) models and processed-based models. The seasonal variation of GPPNIRv was also consistent with those from flux sites and models. More importantly, the inter-annual trends in GPPNIRv during the last four decades were consistent with those from processed-based models across latitudes, which outperformed the other GPP products. This evidence suggested that the long-term GPP datasets derived from NIRv have better abilities to capture the seasonal and inter-annual variations of terrestrial GPP at the global scale. The long-term GPPNIRv product could be beneficial for the estimation of terrestrial carbon fluxes and for the projection of future climates.
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The FLUXNET2015 dataset and the ONEFlux processing pipeline for eddy covariance data
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Self-citationCanopy near-infrared reflectance and terrestrial photosynthesis
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Cited by
Optical vegetation indices for monitoring terrestrial ecosystems globally
Zeng, Y., Hao, D., Huete, A., Dechant, B., Berry, J., Chen, J. M., Joiner, J., Frankenberg, C., Bond-Lamberty, B., Ryu, Y., et al. (2022) · Nature Reviews Earth & Environment · doi:10.1038/s43017-022-00298-5 · Cited by 837
New Global MuSyQ GPP/NPP Remote Sensing Products From 1981 to 2018
Wang, J., Sun, R., Zhang, H., Xiao, Z., Zhu, A., Wang, M., Yu, T., & Xiang, K. (2021) · IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing · doi:10.1109/jstars.2021.3076075 · Cited by 76
Metadata
- Authors
- Wang, S., Zhang, Y., Ju, W., Qiu, B., & Zhang, Z.
- Venue
- Science of The Total Environment
- Publisher
- Elsevier BV
- Published
- 2021-02
- Volume
- 755
- Issue
- Pt 2
- Pages
- 142569
- ISSN
- 0048-9697 (ISSN-L)
- OpenAlex
- W3091000723
- Cited by
- 319
- References
- 37
- FWCI
- 18.03
- Type
- journal article
- Language
- en
- Open access
- closed
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