Green Manure Coupled With Straw Returning Increases Soil Organic Carbon via Decreased Priming Effect and Enhanced Microbial Carbon Pump
文献类型： 外文期刊
作者： Zhou, Guopeng 1 ; Li, Guilong 2 ; Liang, Hai 3 ; Liu, Rui 4 ; Ma, Zhengbo 4 ; Gao, Songjuan 5 ; Chang, Danna 4 ; Liu, Jia 2 ; Chadwick, David R. 6 ; Jones, Davey L. 6 ; Cao, Weidong 4 ;
作者机构： 1.Anhui Agr Univ, Coll Resources & Environm, Hefei, Peoples R China
2.Jiangxi Acad Agr Sci, Inst Soil & Fertilizer & Resource & Environm, Nanchang, Peoples R China
3.Guangxi Acad Agr Sci, Agr Resources & Environm Res Inst, Nanning, Peoples R China
4.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, State Key Lab Efficient Utilizat Arable Land China, Beijing, Peoples R China
5.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing, Peoples R China
6.Bangor Univ, Sch Environm & Nat Sci, Bangor, Gwynedd, Wales
关键词： biomarkers; microbial carbon pump; priming effect; soil carbon components; stable isotope probing
期刊名称：GLOBAL CHANGE BIOLOGY （ 影响因子：12.0； 五年影响因子：14.0 ）
ISSN： 1354-1013
年卷期： 2025 年 31 卷 5 期
页码：
收录情况： SCI
摘要： Green manuring and crop straw returning are widely used to increase soil organic carbon (SOC) sequestration, while the pathways and drivers in native SOC mineralization and new SOC formation after implementing these practices remain unclear. Here, through a 10-locations' network field experiment in southern China, the effects of green manuring (Mv), rice straw returning (Rs), and their combination (MR) on soil C sequestration efficiency (CSE) were evaluated. A microcosmic experiment was performed to trace the components and participants of SOC mineralization and formation under the three practices. The network experiment showed that Mv, Rs, and MR annually improved SOC stock by 119.7, 477.0, and 830.2 kg C ha(-1), respectively, with MR having the highest CSE of 23.1%, followed by Rs (17.7%) and Mv (13.3%). The microcosmic experiment further revealed that the highest CSE in MR most likely resulted from the low mineralization of native SOC (positive priming effects, PE) and great formation of new SOC through microbial C pump (MCP). Therein, MR mainly downregulated the K-strategists of the microbial community (e.g., Gaiellales) to yield negative PE on recalcitrant native SOC, such as protein/amino sugar- and lignin-like molecules; meanwhile, MR had the highest bacterial and fungal MCPs, which were, respectively, led by r-strategists (e.g., Sporobacter) and molds (e.g., Cladosporium). The study highlights the advantages of mixing low- (Rs) and high-quality (Mv) residues for efficiently increasing SOC sequestration and firstly discovers the core microbes that dominate the mineralization and formation of SOC in paddy fields.
- 相关文献
作者其他论文 更多>>
-
Milk vetch (Astragalus sinicus L.) affects microbial-driven rice straw decomposition in multiple stages
作者：Ma, Xinling;Liu, Xiaoli;Chen, Ling;Fan, Jianbo;Wu, Meng;Liu, Ming;Ma, Xinling;Liu, Xiaoli;Chen, Ling;Fan, Jianbo;Wu, Meng;Liu, Ming;Dai, Qingjun;Qin, Wenjing;Liu, Jia;Li, Daming
关键词：Residue co-decomposition; Lignocellulose; Microbial community; Niche breadth
-
Green manuring increases network complexity and deterministic assembly of diazotrophic community in a subtropical paddy soil
作者：Su, Xianchu;Sun, Luyuan;Feng, Mengmeng;Zhu, Junkang;Wang, Anqi;Jin, Shengsheng;Lin, Yongxin;Sun, Luyuan;Liu, Jia;Kang, Yuntao;He, Zi-Yang;He, Ji-Zheng
关键词：Green manure; Straw return; Diazotroph; Assembly process; Co-occurrence network; Paddy soil
-
Green manuring combined with optimal water management achieves a triple-win for paddy soil quality, rice productivity, and environmental benefits
作者：Zhou, Guopeng;Ma, Zhengbo;Chang, Danna;Sun, Jinxin;Cao, Weidong;Ma, Zhengbo;Chadwick, David R.;Jones, Davey L.;Han, Shang;Wu, Ji;Liu, Han;Liu, Jia;Zhou, Guodong;Ma, Qingxu
关键词：Green manure; Delayed flooding; Soil quality index; Environment footprint; Net ecosystem economic budget
-
Effects of different proportions of organic substitution for mineral fertilizers on soil methanogenic and methanotrophic communities in paddy fields
作者：Yuan, Dandan;Dang, Keke;Yin, Jing;Ma, Tingting;Xiang, Xingjia;Yuan, Dandan;Dang, Keke;Yin, Jing;Ma, Tingting;Xiang, Xingjia;Dang, Keke;Xiang, Xingjia;Liu, Han;Liu, Jia
关键词：CH4 emissions; Chinese milk vetch; Long-term fertilization; Pig manure; Red paddy soil
-
Cover cropping shifts microbial life-history strategies to promote necromass carbon accumulation through soil metabolite mediation in orchard systems
作者：Zhang, Yutao;Xiang, Xingjia;Liu, Jia;Liu, Kailou;Li, Daming;Cui, Rong;Liu, Yaxin;Liu, Ming
关键词：Cover crop amendment; Microbial life-history strategy; Microbial necromass carbon; Bacterial community assembly; Soil metabolites
-
Ethylene stimulates methane oxidation and inhibits methane production in green manure-rice systems
作者：Sun, Jinxin;Ma, Zhengbo;Liang, Ting;Chang, Danna;Cao, Weidong;Sun, Jinxin;Zou, Chunqin;Zhou, Guopeng;Liu, Rui;Liu, Han;Liu, Jia
关键词：Green manure; Ethylene; Rice; Aerenchyma; Ch4
-
Long-term fertilization promotes the microbial-mediated transformation of soil dissolved organic matter
作者：Xia, Mingming;Li, Pengfa;Wu, Meng;Li, Zhongpei;Liu, Ming;Xia, Mingming;Wu, Meng;Li, Zhongpei;Liu, Ming;Xia, Mingming;Li, Pengfa;Liu, Jia;Qin, Wenjing;Dai, Qingjun;Li, Daming
关键词：
