title: Metagenomic sequencing library of coastal marine sediments from Rongcheng Nation Swan Nature Reserve: vegetated;depth 21-26cm
design: The sediment sample was obtained from the Rongcheng Swan Lake Nature Reserve (Rongcheng) on 15 November 2018. This sediment core was collected using columnar samplers at the depth intervals of 2126 cm in a seagrass meadow site. After collection, bulk sediments were immediately sealed in plastic bags, placed in a precooled icebox and transported to the laboratory within 4 h. For each sample, DNA was extracted from 10 g sediment using PowerSoil DNA Isolation kit (Qiagen), according to the manufacturers protocol.