Low Carbon Loss from Long-Term Manure-Applied Soil during Abrupt Warming Is Realized through Soil and Microbiome Interplay
文献类型: 外文期刊
作者: Wang, Enzhao;Yu, Bing;Zhang, Jiayin;Gu, Songsong;Yang, Yunfeng;Deng, Ye;Guo, Xue;Wei, Buqing;Bi, Jingjing;Sun, Miaomiao;Feng, Huaqi;Song, Alin;Fan, Fenliang
作者机构:
关键词: abrupt warming;manure substitution;recalcitranceof SOC;warm-stimulated microorganisms;microbialnetwork;carbon sequestration;stable isotope probing
期刊名称: ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN: 0013-936X
年卷期: 2024 年
页码:
收录情况: SCIE(2024版) ; ; EI(2024版)
摘要: Manure application is a global approach for enhancing soil organic carbon (SOC) sequestration. However, the response of SOC decomposition in manure-applied soil to abrupt warming, often occurring during diurnal temperature fluctuations, remains poorly understood. We examined the effects of long-term (23 years) continuous application of manure on SOC chemical composition, soil respiration, and microbial communities under temperature shifts (15 vs 25 degrees C) in the presence of plant residues. Compared to soil without fertilizer, manure application reduced SOC recalcitrance indexes (i.e., aliphaticity and aromaticity) by 17.45 and 21.77%, and also reduced temperature sensitivity (Q(10)) of native SOC decomposition, plant residue decomposition, and priming effect by 12.98, 15.98, and 52.83%, respectively. The relative abundances of warm-stimulated chemoheterotrophic bacteria and fungi were lower in the manure-applied soil, whereas those of chemoautotrophic Thaumarchaeota were higher. In addition, the microbial network of the manure-applied soil was more interconnected, with more negative connections with the warm-stimulated taxa than soils without fertilizer or with chemical fertilizer applied. In conclusion, our study demonstrated that the reduced loss of SOC to abrupt warming by manure application arises from C chemistry modification, less warm-stimulated microorganisms, a more complex microbial community, and the higher CO2 intercepting capability by Thaumarchaeota.
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