Sediment Core Proxy Data and Watershed Socioeconomic Records for Shitang Lake, Eastern China

<b>Dataset Description</b>This dataset comprises four integrated components that collectively support a long-term ecological assessment of Shitang Lake, a suburban shallow lake in eastern China:1. <b>Chronological Data</b>:Depth–age data based on ²¹⁰Pb and ¹³⁷Cs radiometric dating.2. <b>Watershed Socioeconomic and Land-Use Data</b>:Annual records of socioeconomic indicators and land-use changes from 1950 to 2020, along with mean annual temperature data from 1901 to 2021.3. <b>Physicochemical Proxy Data</b>:Sediment geochemical indicators reflecting environmental conditions and watershed inputs.4. <b>Biological Proxy Data</b>:Paleoecological records derived from plant macrofossils and diatom assemblages.