Biogeosciences
Biogeosciences
BG
Articles | Volume 18, issue 18
Articles | Volume 18, issue 18
https://doi.org/10.5194/bg-18-5247-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-5247-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 18
Research article
 | 
28 Sep 2021
Research article |  | 28 Sep 2021

Long-term spatiotemporal variations in and expansion of low-oxygen conditions in the Pearl River estuary: a study synthesizing observations during 1976–2017

Jiatang Hu, Zhongren Zhang, Bin Wang, and Jia Huang

Viewed

Total article views: 3,302 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
2,189 1,041 72 3,302 158 81 112
  • HTML: 2,189
  • PDF: 1,041
  • XML: 72
  • Total: 3,302
  • Supplement: 158
  • BibTeX: 81
  • EndNote: 112
Views and downloads (calculated since 04 Feb 2021)
Cumulative views and downloads (calculated since 04 Feb 2021)

Viewed (geographical distribution)

Total article views: 3,302 (including HTML, PDF, and XML) Thereof 3,145 with geography defined and 157 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 25 Nov 2025
Download
Short summary
In situ observations over 42 years were used to explore the long-term changes to low-oxygen conditions in the Pearl River estuary. Apparent expansion of the low-oxygen conditions in summer was identified, primarily due to the combined effects of increased anthropogenic inputs and decreased sediment load. Large areas of severe low-oxygen events were also observed in early autumn and were formed by distinct mechanisms. The estuary seems to be growing into a seasonal, estuary-wide hypoxic zone.
Read more
Share
Altmetrics
Final-revised paper
Preprint