The Relationship Between Phytoplankton Diversity and Ecosystem Functioning Changes with Disturbance Regimes in Tropical Reservoirs

Xu, Yanchun; Wang, Lu; Tang, Quehui; Naselli-Flores, Luigi; Han, Bo‐Ping

doi:10.1007/s10021-022-00791-4

Cited by 8 publications

(1 citation statement)

References 88 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For instance, Naselli-Flores and Barone (2005) reported that the water level fluctuation is a significant factor driving water quality in Mediterranean reservoirs. Meanwhile, plankton and fish in reservoir ecosystems also have a significant impact on the biogeochemical cycle of biogenic elements, thereby influencing the water quality of reservoirs (Akongyuure and Alhassan, 2021;Xu et al, 2022). Given this, we pose the question that whether watershed land cover management alone is sufficient to enhance the water quality of reservoirs.…”

mentioning

confidence: 99%

Ecological water quality of the Three Gorges Reservoir and its relationship with land covers in the reservoir area: implications for reservoir management

Chen

Cheng

et al. 2023

Front. Environ. Sci.

View full text Add to dashboard Cite

In this study, we evaluated the ecological water quality of the entire Three Gorges Reservoir (TGR) and further examined the relationship with changes in watershed land covers. Using the phytoplankton functional group-based Q index, we found that the ecological water quality in the mainstream (previously known as the Yangtze River) of TGR is good, with 84% of sites in the status above good. While the poor ecological water quality was generally observed in the backwater regions of TGR’s tributaries, with 79% of sites below the good status. Further investigating the potential impacts of the changes in land covers within the watershed on the tributary ecological water quality, we found that the percentage of urban and farmland areas had a significant (p < 0.05) negative correlation with the Q index-based ecological water quality of the tributary bays, and the forest cover had a marginally significant (p = 0.058) positive correlation with the ecological water quality. As a comparison, total nitrogen and total phosphorus in the tributary backwater regions of TGR had no reasonable correlation with the land covers within the watershed. Our study highlights that watershed management can enhance the ecological water quality in the backwater regions of TGR’s tributaries, but it likely to be a long-term process. This implies considerations of other rapid measures, such as the water level regulation approach, should also be considered in reservoir management. Our study underscores the importance of ecological water quality assessment in reservoir management and provides insights into the impacts of changes in watershed land covers on ecological water quality in backwater regions of TGR’s tributaries.

show abstract

mentioning

confidence: 99%