Comparisons of soil organic carbon enrichment and loss in sediments among red soil, black soil, and loess in China

Water erosion could cause wide and serious soil organic carbon (SOC) loss, but differences in SOC loss and enrichment in sediments among red soil, black soil, and loess in China have received less attention. This study investigates the transport of sediments and generation regulation of runoffs duri...

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Bibliographic Details
Published in:SN applied sciences 2022-10, Vol.4 (10), p.1-14, Article 279
Main Authors: Cao, Zhongxuan, Chen, Zhijun, Gao, Junmei, Liu, Lin, Zhu, Hui, Yang, Shuyan, Shao, Yu, Wen, Taoyi
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Black soil
Chemistry/Food Science
Earth Sciences
Engineering
Environment
Loess
Materials Science
Red soil
Research Article
SOC loss
Soil loss
Water erosion
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Summary:Water erosion could cause wide and serious soil organic carbon (SOC) loss, but differences in SOC loss and enrichment in sediments among red soil, black soil, and loess in China have received less attention. This study investigates the transport of sediments and generation regulation of runoffs during the erosion process by collecting data from indoor or outdoor artificial simulated rainfall experiments and selecting typical regional rainfall intensity and slope gradient for bare cultivate soil slopes as well as 5–8 m length and 1.5–2 m width runoff plots or soil pans. Then, the change in SOC loss for the three widely distributed and seriously eroded soils, from south to north in China, is clarified. Results show that the stable value and growth rate of soil and SOC loss rates followed the following order: black soil 
ISSN:2523-3963
2523-3971
DOI:10.1007/s42452-022-05166-x