数字农科院2.0

Stimulatory effects of nutrient addition on microbial necromass C formation depend on soil stoichiometry

文献类型： 外文期刊

作者： Yihui Chen;Shutang Liu;Yaping Huang;Qiong Xiao;Xiaorong Zhao;Lei Wu;Wenju Zhang

作者机构：

关键词： Enzyme activities;Microbial anabolism;Microbial necromass carbon;Nutrient addition;Soil stoichiometry

期刊名称： Geoderma

ISSN： 0016-7061

年卷期： 2025 年 458 卷

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： Nutrient availability strongly influences soil organic carbon (SOC) accumulation through microbial necromass C (MNC) formation. However, the effects of nutrient addition on regulating MNC formation in soils with distinct stoichiometric ratios are not well understood. Soil samples were collected from a long-term (>40 years) wheat-maize rotation field trial, without and with nutrient management, which exhibited high and low C:nutrient (N and P) ratios, respectively. These soils were incubated with 13C-labeled glucose (labile C) and nutrients (N and/or P) for 63 days. A greater proportion of labile C was converted into MNC, especially bacterial necromass C, in the low C:nutrient soil (averaging 32 %) than in the high C:nutrient soil (averaging 25 %). In the high C:nutrient soil, N and/or P addition significantly increased newly formed MNC (13C-MNC) by 8–33 %, whereas in the low C:nutrient soil, N and P addition had a marginal and negative effect on 13C-MNC, respectively. The 13C-MNC content was negatively correlated with resource stoichiometric ratios (dissolved organic C (DOC):mineral N, microbial C:N imbalance, and DOC:available P), and enzyme activities (β-1,4-glucosidase, leucine amino peptidase, N-acetyl-glucosaminidase, and alkaline phosphatase). These results suggest that the increase in MNC is primarily due to the alleviation of N and P limitations. Furthermore, the 13C-MNC content was positively correlated with the 13C-phospholipid fatty acids content, indicating that enhanced microbial anabolism, especially bacterial anabolism, promoted MNC formation. Collectively, our findings emphasize the critical role of soil stoichiometry in regulating microbial metabolism and MNC formation in response to nutrient addition. These insights have significant implications for optimizing nutrient management to enhance SOC sequestration in arable soil.

分类号：

  • 相关文献

[1]Responses of Soil Bacterial Diversity to Fertilization are Driven by Local Environmental Context Across China. Feng Y.,Delgado-Baquerizo M.,Zhu Y.,Han X.,Han X.,Xin X.,Li W.,Guo Z.,Dang T.,Li C.,Zhu B.,Cai Z.,Li D.,Zhang J.. 2022

[2]Soil organic carbon increase via microbial assimilation or soil protection against the priming effect is mediated by the availability of soil N relative to input C. Futao Zhang,Qianqian Wang,Yueling Zhang,Shuihong Yao,Qinhua Wang,Georges Ndzana,Ute Hamer,Yakov Kuzyakov,Bin Zhang. 2024

[3]The effects of land management patterns on soil carbon sequestration and C:N:P stoichiometry in sloping croplands in southern China. Tingting Tao,Lisheng Liu,Gaston E. Small,Jihui Chen,Yizhu Wang,Xiao Sun. 2021

[4]Vegetation Restoration Increases Soil Carbon Storage in Land Disturbed by a Photovoltaic Power Station in Semi-Arid Regions of Northern China. Zhao W.,Zhao J.,Liu M.,Gao Y.,Li W.,Duan H.. 2024

[5]Enhancing soil ecological stoichiometry and orchard yield through ground cover management: A meta-analysis across China. Weiting Ding,Huizhou Gao,Zhidong Qi,Liangjie Sun,Chengwei Zheng,Jinsong Huang,Vilim Filipović,Hailong He. 2025

[6]Depth-Dependence Changes in Soil Stoichiometry in China's Croplands Over the Past Four Decades. Sun, Xiaodong,Zhou, Zhenghu,Luo, Yiqi,Gao, Qingzhu,Li, Hu,Liu, Shuo,Xu, Minggang,Li, Yu'e,Cai, Andong. 2025

[7]Appropriate Amount Application of Manure is Conducive to Improve Soil Aggregate Stability in Saline-Alkaline Soil: Analyzed from Soil Organic Carbon Mediated by Microbial Necromass Carbon. Gao, Chunwei,Zhang, Shirong,Chen, Mengmeng,Cheng, Lingbao,Zhang, Xiaoguang,Ding, Xiaodong. 2024

[8]Long-term maize-soybean rotation in Northeast China: impact on soil organic matter stability and microbial decomposition. Cui, Jiwen,Yang, Binggeng,Xu, Xinpeng,Ai, Chao,Zhou, Wei. 2024

[9]Palygorskite enhances microbial necromass carbon accumulation and drives heavy metal immobilization during chicken manure composting. Shihang Wu,Tao Sun,Chao Wang,Renfu Zhang,Luqi Mi,Hao Yang,Xiaojia Zhou,Kexin Chen,Yuebing Sun. 2025

[10]Substrate stoichiometry and microbial metabolic preference drive the divergent accumulation of plant and microbial necromass carbon in cropland soils: evidence from a short-term experiment. Hongliang Wu,Luming Wang,Xiuping Liu,Wenyan Wang,Changai Lu,Wenxu Dong. 2025

[11]Bacterial necromass as the main source of organic matter in saline soils. Jiashen Song,Hongyuan Zhang,Bahar Razavi,Fangdi Chang,Ru Yu,Xia Zhang,Jing Wang,Jie Zhou,Yuyi Li,Yakov Kuzyakov. 2024

[12]Green manure roots return drives saline-alkali soil organic carbon accumulation via microbial necromass formation. Fangdi Chang,Hongyuan Zhang,Peiyi Zhao,Na Zhao,Jiashen Song,Ru Yu,Jing Wang,Xiquan Wang,Dongxun Han,Xiaodong Liu,Jie Zhou,Yuyi Li. 2025

[13]Cultivating crop reduces microbial necromass carbon accumulation but contributes fungal derived- soil organic carbon formation in fertilized soils with straw addition. Mei, Xiuwen,Zhu, Tengxiao,Li, Yuping,Li, Shuangyi,Sun, Liangjie,An, Tingting,Wang, Jingkuan. 2025

[14]Global Synthesis of Fertilisation-Induced Changes in the Microbial Entombing Effect. Fu, Haoran,Chen, Hong,Ma, Zhengbo,Liang, Guopeng,Tian, Jing,Wanek, Wolfgang,Chadwick, David R.,Jones, Davey L.,Wu, Lianghuan,Ma, Qingxu. 2025

[15]Different responses of soil bacterial necromass carbon and fungal necromass carbon to nitrogen deposition in meadow steppe. Na Jiang,Hao Zhang,Siyu Zhang,Jie Qin,Hui Wang,Yanjun Zhang,Dianlin Yang,Lili Wang,Qiannan Yang,He Ye,Mei Hong,Haifang Zhang. 2025

[16]Bamboo-sourced liquid microbial fertilizer improves soil quality and ecological multifunctionality via regulating microbial necromass carbon. Li, Qiaoling,Huang, Zhiyuan,Bian, Fangyuan,Zhong, Zheke,Zhang, Xiaoping. 2026

[17]Long-term nitrogen and phosphorus addition enhances soil organic carbon stabilization by strengthening mineral-organic interactions in a temperate grassland. 张昊,,姜娜,,张思宇,,王慧,,刘红梅,,赵建宁,,红梅,,张海芳,,杨殿林. 2025

[18]The effect of supplemental manganese in broiler diets on abdominal fat deposition and meat quality. Lu, L.,Ji, C.,Luo, X. G.,Liu, B.,Yu, S. X.. 2006

[19]Changes of soil enzyme activities under different tillage practices in the Chinese Loess Plateau. Jin, K.,Cai, D. X.,Jin, J. Y.,Jin, K.,Sleutel, S.,Buchan, D.,De Neve, S.,Gabriels, D.. 2009

[20]Carbon and nitrogen fractions are more important than bacterial composition for carbon and nitrogen mineralization considering parent material and fertilization. Shaoqi Xue,Shiqi Xu,Wei Kou,Jiale Han,Ting Fan,Xia Zhang,Xudong Wang. 2023

作者其他论文 更多>>