F Zhang, B Xue,
Y Cai, H Xu, W Zou - Ecological Indicators, 2023 - Elsevier
Abstract The Trophic State Index (TSI), based on chlorophylla [TSI (Chla)], Secchi depth [TSI
(SD)], total nitrogen [TSI (TN)], and total phosphorus [TSI (TP)], is a popular tool for lake …