XVIII IWRA World Water Congress Beijing China 2023
Sub-theme 4: Supporting Aquatic Ecosystem Health and Functions
Author(s): Weijing Kong - Chinese Research Academy of Environmental Sciences
Oral: PDFAbstractOutline of the report
- Overview of the region
- Evolution of water resources
- Freschwaer ecosystem quality assessment in Taitema Lake
- Conlusions
Conclusions
- Freshwater communities showed obvious spatial and temporal distribution patterns:
- a total of 164 species of 7 phylum and 36 families for phytoplankton,
- 65 species of 4 phylum and 27 families of phylum in 4 phyla,
- 17 species of macrobenthic invertebrates in 4 phylum and 13 families,
- 17 species of fish,
- 27 species in 25 genera and 14 families and aquatic plants were obtained.
- The comprehensive evaluation of the quality of freshwater ecosystem in the Taitema Lake Basin was best in spring and worst in summer.
- Seasonal changes and ecological water replenishment have obvious effects on the freshwater ecosystem ofLake Taitema.The annual evaporation of Taitma Lake is higher than the intake, and the spring and summer of Taitma Lake Basin are in the process of continuous evaporation, and the high evaporation in summer leads to obvious degradation of the overall water ecological status of Taitma Lake Basin, which further indicates that water diversion and replenishment have a positive effect on the maintenance of freshwater ecological health in the Taitma Lake Basin.
- The water body of Lake Taitma is in a moderate nutrient status in spring and summer, and supervision and protection should be strengthened to prevent eutrophication;