Feasibility of Biochar Preparation with Solar Pyrolysis MethodHuihong Luo, Shaohong Chen, Jie Li, Xiaoting Hou, Nuo Chen, Haipeng Lan, Dongyong Cai, Qia Chen, Xiaoyin Yang, Sitian Zhang and Changsheng PengE3S Web Conf., 299 (2021) 03003DOI: https://doi.org/10.1051/e3sconf/202129903003