Effects of Surface-Underground Runoff Regulated by Biochar on Nutrient Loss in Karst Mountainous Areas

• Published in: Journal of soil science and plant nutrition Vol. 23; no. 3; pp. 3163 - 3173
• Main Authors: Fan, Chunhua, Yin, Xiaoai, Fang, Qian, Yang, Xiuchao, Zhao, Longshan
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.09.2023; Springer Nature B.V
• Subjects: Agricultural production; Agriculture; Biomass; Biomedical and Life Sciences; Carbon; Charcoal; Ecology; Environment; Eutrophication; Flow paths; Food security; Hydrology; Infiltration capacity; Karst; Life Sciences; Mountain regions; Mountainous areas; Mountains; Nitrogen; Nutrient flow; Nutrient loss; Nutrients; Original Paper; Phosphorus; Plant Sciences; Potassium; Rain; Rainfall; Rainfall intensity; Raw materials; Runoff; Soil erosion; Soil infiltration; Soil Science & Conservation; Soil structure; Soil water; Surface runoff; China; Nutrient output; Biochar; Karst mountainous areas; Surface runoff; Underground fissure runoff

In this study, the effect of biochar application on soil erosion and nutrient loss on karst slopes was investigated under dual surface-underground flow path conditions. Four application rates of biochar to soil considered (0 t ha −1 (CK), 15 t ha −1 (B15), 30 t ha −1 (B30), and 60 t ha −1 (B60)). Th...