The Addition of Straw Affects the Response of Labile Soil Organic Carbon to the Freezing and Thawing Process

• Published in: Agronomy (Basel) Vol. 15; no. 2; p. 479
• Main Authors: Zhu, Mengmeng, Ma, Qiang, Li, Shuailin, Zhuqing Xia, Zhou, Changrui, Gao, Yun, Zhang, Xinhui, An, Siyu, Jiang, Xiao, Yu, Wantai
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.02.2025
• Subjects: agricultural ecosystems; Biological activity; Biomass; Carbon; Carbon cycle; Climate change; Decomposition; Design of experiments; Dissolved organic carbon; Freeze thaw cycles; Freeze-thawing; freeze–thaw process; Freezing; Global warming; Laboratories; Microbial activity; Microorganisms; Organic soils; soil labile carbon; Soils; Straw; straw return; Thawing; Liaoning China; China

Global warming alters freeze–thaw process frequency and intensity, impacting soil carbon cycles. Four soils from a 12-year straw return experiment were used: S0 (no straw), S1 (low rate of addition), S2 (medium rate), and S3 (high rate). Ten treatments with or without temporary straw addition at dif...