Soil total and available C:N:P stoichiometry among different parent material soil profiles in rubber plantations of Hainan Island, China - Yuzhu Li; Yue Zhao; Xuelian Bao; Hongtu Xie; Xiaotao Lü; Yangang Fu; Shixin Tang; Chengjun Ge; Chao Liang (Geoderma Regional, 2024)