Fig. 8: Relationships between the hydrogeochemical variables (Euclidean distance) and water drainage, water storage, and extreme drought-heatwave event period (Bray–Curtis distance) revealed by the Mantel test. | Communications Earth & Environment

Fig. 8: Relationships between the hydrogeochemical variables (Euclidean distance) and water drainage, water storage, and extreme drought-heatwave event period (Bray–Curtis distance) revealed by the Mantel test.

From: Extreme drought-heatwave events threaten the biodiversity and stability of aquatic plankton communities in the Yangtze River ecosystems

Fig. 8

Edge width corresponds to Mantel’s r value, and the edge color denotes statistical significance. Pairwise correlations of these variables are shown with a color gradient denoting Spearman’s correlation coefficient. *p < 0.05; **, 0.001<p < 0.01; ***p < 0.001. TEMP: water temperature; DO: dissolved oxygen; NH3-N: ammonia nitrogen; TP: total phosphorus; TN: total nitrogen; SSC: suspended sediment concentration; COD: chemical oxygen demand; BOD5: biochemical oxygen demand.

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