Multi-proxy paleoecological and geochemical dataset from Lake Stadtsee (Germany), ca. 1300–1900 CE

This dataset comprises high-resolution paleoenvironmental data derived from lake sediments of Lake Stadtsee (Bad Waldsee, southwestern Germany), covering the period from approximately 1300 to 1900 CE. The data were generated to reconstruct long-term trophic, ecological, and biogeochemical changes in the lake in response to climatic variability and pre-industrial human activities. The dataset includes: 1) Biological proxy data: diatom assemblages, cladoceran remains, chironomid head capsules, bryozoan statoblasts, ostracods, and cladoceran ephippia, 2) Geochemical data: μ-XRF elemental counts (Al, Si, K, Ca, Ti, Mn, Fe, Rb, Sr) and derived elemental ratios (Si/Ti, Mn/Fe, Rb/K, Fe/Ti), 3) Elemental and isotopic measurements: TOC, TN, TOC/TN ratios, δ¹³C, δ¹⁵N, δ¹⁸O, and carbonate δ¹³C,