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Beta diversity has emerged as a crucial factor in conservation efforts, particularly through the measurement of local contributions to beta diversity (LCBD), which is increasingly recognized for their value in conservation planning. This study investigated the distribution, interrelationships, and determinants of taxonomic, functional, and phylogenetic LCBD from 147 sampling sites in the Thousand Islands Lake catchment in China, and explored the taxa that contribute most to beta diversity (SCBD) in the region. By adopting distance-based methods, we applied a framework combining biotic and abiotic uniqueness (local contributions to environmental heterogeneity, LCEH) based on macroinvertebrate and environmental data to enhance ecological conservation and restoration strategies within the region. Our findings indicate: (1) significant correlations between biotic uniqueness and insignificant correlations between biotic and abiotic uniqueness emphasize the importance of simultaneously considering abiotic and biotic uniqueness; (2) key physicochemical factors such as pH, nitrogen-to-phosphorus ratio (NPR), and stream width significantly influence LCBD; (3) a significant negative correlation between biotic uniqueness and species richness, suggesting that areas of high uniqueness may require more targeted restoration efforts; (4) protecting approximately 35–50% of the sampling sites preserves about 60% of the area’s ecological uniqueness. This integrative approach promises to guide future conservation and restoration initiatives effectively by combining biological community data with stable environmental characteristics. Continued research is essential to further explore the interplay between environmental factors and LCBD, and to integrate this approach with metacommunity theory across diverse ecological and geographical contexts.

The Fe3+-loaded NaBiO3 was prepared for photocatalytic removal of tetracycline hydrochloride (TCH) from swine wastewater. Fe3+ greatly reduced the recombination efficiency of the photoinduced electron–hole pairs of NaBiO3. Moreover, the TCH photocatalytic degradation rate constant of Fe3+-loaded NaBiO3 was two-times higher than that of Vis+NaBiO3 after 100 min of reaction. Fe-NaBiO3 combined with PS (100 mg L−1) favored TCH (10 mg L−1) degradation rate (98.8%) at neutral pH. Moreover, the oxidation system was not inhibited by the fulvic acid, and showed a good photocatalytic stability. The superoxide radicals were the main active species involved in the catalytic degradation.