Scale effects of multi-medium heavy metals in response to landscape indices in the Yuan River, China

• DOI: 10.1016/j.jclepro.2022.133784
• Publication Date: 2022-08-27T06:46:30Z
• Authors: Liwen Chen; Yutao Yang; Mingjun Ding; Hua Zhang; Fu Zou; Peng Wang; Minghua Nie; Gaoxiang Huang; Caixia Yan
• Keywords: 01 natural sciences; 0105 earth and related environmental sciences

Heavy metals in river basins can affect the entire ecosystem through water recycling. Different heavy are significantly affected by riparian landscape patterns due to difference of source and migration processes, while intensity impact is directly influenced spatial scale patterns. Here, we employ correlation analyses (CA) redundancy (RDA) determine scales for which multi-medium (Cr, Mn, Cu, Zn, As, Cd Pb) most sensitive indices zone Yuan River. Results show that dissolved were 300 m line buffer wet season catchments dry season. The suspended particulate season, 500 buffers However, correlations between sediment unclear at all scales. 100 point showed highest explained variances media. important ENN_MN (Mean Euclidean Nearest Neighbor Distance) LPI (Largest Patch Index), SHDI (Shannon's Diversity Index) ED (Edge Density) metals. More accurate effects indicators provide data reference similar watershed studies.