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Biochar of agricultural and forestry waste is one of the core ways to solve the greenhouse effect, and it is also the key measure to improve the land productivity of China's low yield fields and realize the sustainable development of agriculture. Due to the large area of China's albic soil, the long-term drought and flood disasters make it a typical low-yield field, which has not been effectively treated. Biochar provides new hope for improving low-yield albic soil. This paper introduces thedoi:10.4236/as.2019.106062 fatcat:mfnj5i7oqre3zjfbrul23v3tn4