Variation in microbial communities and network ecological clusters driven by soil organic carbon in an inshore saline soil amended with hydrochar in Yellow River Delta, China
文献类型： 外文期刊
作者： Yao, Hui 1 ; Cheng, Yadong 1 ; Kong, Qingxian 1 ; Wang, Xiao 1 ; Rong, Ziguo 3 ; Quan, Yue 4 ; You, Xiangwei 1 ; Zheng, Hao 5 ; Li, Yiqiang 1 ;
作者机构： 1.Chinese Acad Agr Sci, Marine Agr Res Ctr, Tobacco Res Inst, Qingdao 266101, Peoples R China
2.Natl Tech Innovat Ctr Comprehens Utilizat Saline A, Dongying 257300, Peoples R China
3.Yellow River Delta Agr High Tech Ind Demonstrat Zo, Dongying 257300, Peoples R China
4.Yanbian Univ, Dept Geog & Marine Sci, Hunchun 133000, Peoples R China
5.Ocean Univ China, Inst Coastal Environm Pollut Control, Coll Environm Sci & Engn,Minist Educ Key Lab Marin, Frontiers Sci Ctr Deep Ocean Multispheres & Earth, Qingdao 266100, Peoples R China
关键词： Soil carbon; Hydrochar; Soil microorganism; Ecological cluster; Coastal salt-affected soil; Soil health
期刊名称：ENVIRONMENTAL RESEARCH （ 影响因子：7.7； 五年影响因子：7.7 ）
ISSN： 0013-9351
年卷期： 2025 年 264 卷
页码：
收录情况： SCI
摘要： Char materials (e.g., hydrochar) can enhance carbon sequestration, improve soil quality and modulate soil microbial communities to recuperate soil health. However, little is known about the soil organic carbon (SOC) content, as well as the microbial communities and co-occurrence networks in response to hydrochar amendment in an inshore saline soil. Here, the effect of Sesbania cannabina (a halophyte) straw derived hydrochar (SHC) amendment on SOC and labile organic carbon (LOC) fractions and the potential associations among SOC content change, soil C-cycling enzyme activities and microbial communities were illustrated using a pot experiment. SHC effectively improved the contents of SOC and LOC, particularly particulate organic carbon (POC), and stimulated the activities of C-cycling enzymes. Furthermore, SHC induced shift in microbial community compositions and co-occurrence networks, result in decrease in relative abundance of Actinobacteriota and its corresponding ecological cluster, which may favor SOC accumulation. Functional annotation of prokaryotic taxa (FAPROTAX) analysis also revealed a decrease in microbial ecological function related to carbon degradation. These findings provided a deeper insight about the hydrochar-induced SOC enhancement and suggested an efficient approach to improve C sequestration and improve soil health in the coastal salt-affected soil.
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