Study on the vertical distribution of carbon and ash content and its relationship with ombrogenous peat depthBesri Nasrul, Devi Juliana Puspitasari, Irwin Mirza Umami, Idwar, Fetmi Silvina, Nursiani Lubis, Anthony Hamzah, Muhammad Yusa and NurhayatiBIO Web Conf., 99 (2024) 05001DOI: https://doi.org/10.1051/bioconf/20249905001