Publications by authors named "Weicong Cheng"

Article Synopsis
  • - This study highlights the significant role of organic matter from the subsurface chlorophyll maximum (SCM) in causing hypoxia, particularly off the Pearl River Estuary (PRE), especially during periods of low river discharge.
  • - Unlike the usual hypoxia driven by surface eutrophication and land-sourced organic matter during large river flow, this research emphasizes how SCM's upslope transport contributes to offshore hypoxia when river discharge is low.
  • - The findings reveal that approximately 26% of dissolved oxygen depletion under the pycnocline is linked to organic matter from the SCM, suggesting this phenomenon might also occur in other coastal hypoxic environments.
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Due to the recent rapid increase in human activity and economic development, many coastal areas have recently experienced a high degree of land-based pollution. Evaluating the total maximum allocated load (TMAL) of dissolved inorganic nitrogen (DIN) nutrients and the remaining capacity is of importance for improving water quality. A considerable amount of nutrients derived from the coastal watershed can be found in wet seasons, which is non-negligible for the estimation of remaining capacity.

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