数字农科院2.0

Stratified Nitrogen Application Enhances Subsoil Carbon Sequestration via Enzyme-Mediated Pathways in Straw-Incorporated Croplands of North China Plain

文献类型： 外文期刊

作者： Wang, Bin;Wang, Yanqun;Li, Jingyu;Hou, Rui;Liu, Yulong;Fu, Xin;Men, Jie;Li, Yingchun;Peng, Zhengping

作者机构：

关键词： stratified fertilization;C and N fractions;enzyme activity;soil quality index;north China plain

期刊名称： AGRICULTURE-BASEL

ISSN：

年卷期： 2025 年 15 卷 19 期

页码：

收录情况： SCIE（2025版）

摘要： Nitrogen (N) fertilization critically regulates the storage and availability of soil carbon (C) and N pools. However, the internal mechanism through which stratified N application affects soil organic carbon (SOC) sequestration and soil quality index (SQI) remains unclear. To investigate the effects of stratified N application on C sequestration and SQI in both topsoil and subsoil, this study established six treatments (N0:0, N1:0, N4:1, N3:2, N2:3, N1:4) and analyzed soil biochemical indicators. The results showed that compared to N1:0, stratified N fertilization did not significantly improve soil C and N content in the 0-20 cm layer. In contrast, the N2:3 and N1:4 treatments even led to a significant reduction in soil C and N pools in the topsoil. In the 20-40 cm, compared to N1:0, stratified N fertilization increased SOC, TN, labile C fractions, N fractions (particulate organic N and microbial biomass N), enzyme activity and C pool management index (CPMI), increasing by 0.52-7.94%, 2.05-8.42%, 4.77-42.59%, 14.46-56.01%, 6.34-45.82%, and 31.26-51.93%, respectively. In 0-20 cm, compared to N0:0, N application increased SQI by 24.84-45.77%, and N2:3 and N1:4 treatments were lower SQI than N1:0. Furthermore, N2:3, N3:2, and N1:4 treatments in 20-40 cm were higher than other treatments. N fertilizer application drives the synergistic changes in C and N fractions by regulating enzyme activity and stoichiometric ratio, thus affecting CPMI and SQI. Thus, the 3:2 stratified N fertilization (0-20 cm:20-40 cm) method achieves synergistic dual-layer enhancement-maintaining surface C and N pools while boosting subsoil C sequestration and quality-through enzyme-mediated precision regulation of C/N stoichiometry. The study provides a scientific foundation for integrated C emission reduction and cropland quality enhancement in the North China.

分类号：

  • 相关文献

[1]Biochar Amendment was Less Effective for Rice Yield Improvement but More Effective for Soil Quality Relative to Inorganic Fertilization in a Low Fertility Paddy Soil. Chen, Shuotong,Liu, Guanzhi,Hong, Yu,Ma, Yingying,Guo, Shaokang,Yan, Peng,Mi, Wenhai. 2024

[2]Soil quality assessment of yellow clayey paddy soils with different productivity. Liu, Zhanjun,Zhou, Wei,Li, Shutian,Ai, Chao,Liu, Zhanjun,Shen, Jianbo. 2014

[3]Soil Quality Assessment of Acid Sulfate Paddy Soils with Different Productivities in Guangdong Province, China. Liu Zhan-jun,Zhou Wei,Li Shu-tian,Liang Guo-qing,Wang Xiu-bin,Sun Jing-wen,Ai Chao,Shen Jian-bo. 2014

[4]Once-middle amount of straw interlayer enhances saline soil quality and sunflower yield in semi-arid regions of China: Evidence from a four-year experiment. Fangdi Chang,Hongyuan Zhang,Jiashen Song,Ru Yu,Xia Zhang,Haoruo Li,Jing Wang,Zhengrong Kan,Yuyi Li. 2023

[5]Sensitivities of Physical and Chemical Attributes of Soil Quality to Different Tillage Management. Zhao, Hongxiang,Wu, Li,Zhu, Shuwei,Sun, Hongchang,Xu, Cailong,Fu, Jindong,Ning, Tangyuan. 2022

[6]Soil health evaluation approaches along a reclamation consequence in Hangzhou Bay, China. Liang Wei,Yonghua Li,Zhenke Zhu,Feng Wang,Xiaoxia Liu,Wenju Zhang,Mouliang Xiao,Gang Li,Jina Ding,Jianping Chen,Yakov Kuzyakov,Tida Ge. 2022

[7]A large-scale assessment on spatial variability of potato yield and soil chemical properties in northern China. Yinsheng Sheng,Ping He,Xinpeng Xu,Yingxia Liu. 2023

[8]Long-term application of controlled-release fertilizer enhances rice production and soil quality under non-flooded plastic film mulching cultivation conditions. Jingjie Zhou,Sheng Tang,Wankun Pan,Meng Xu,Xiu Liu,Liang Ni,Xiali Mao,Tao Sun,Haoran Fu,Kefeng Han,Qingxu Ma,Lianghuan Wu. 2023

[9]Pyrite functionalized Black Soldier Fly feces biochar for mine soil quality improvement and heavy metals immobilization. Chuang Li,Lei Zhao,Ping Chen,Shujing Ye,Hailan Yang,Yanling Gu,Shaobo Liu,Zhiming Yang,Xinjiang Hu,Xiaofei Tan. 2024

[10]Epigallocatechin gallate (EGCG) nanoselenium application improves tea quality (Camellia sinensis L.) and soil quality index without losing microbial diversity: A pot experiment under field condition. Xiangchun Zhang,Xiangde Yang,Jianyun Ruan,Hongping Chen. 2024

[11]Impacts of long-term chemical nitrogen fertilization on soil quality, crop yield, and greenhouse gas emissions: With insights into post-lime application responses. Kiya Adare Tadesse,Zhang Lu,Zhe Shen,Nano Alemu Daba,Jiwen Li,Md Ashraful Alam,Liu Lisheng,Ntagisanimana Gilbert,Tsegaye Gemechu Legesse,Zhang Huimin. 2024

[12]Combined organic ameliorants is benefits for improving ecosystem multi-functionality in saline soils. Jiashen Song,Hongyuan Zhang,Amit Kumar,Fangdi Chang,Ru Yu,Xiangqian Zhang,Jing Wang,Weini Wang,Junmei Liu,Jie Zhou,Yuyi Li. 2025

[13]Straw return was more beneficial to improving saline soil quality and crop productivity than biochar in the short term. Cong, Ping,Song, Jiashen,Dong, Jianxin,Su, Wenyan,Feng, Wenhao,Zhang, Hongyuan. 2025

[14]Green manuring combined with optimal water management achieves a triple-win for paddy soil quality, rice productivity, and environmental benefits. Guopeng Zhou,Zhengbo Ma,Shang Han,Danna Chang,Jinxin Sun,Han Liu,Guodong Zhou,Qingxu Ma,Jia Liu,Ji Wu,David R. Chadwick,Davey L. Jones,Weidong Cao. 2025

[15]Enhancing soil health and tobacco productivity with different organic amendments: evidence from a 7-year field experiment. Wei Yang,Biao He,Junying Li,Ziyan Wang,Wenjie Tong,Bo Zhu,Zhihua Xiao,Xiaopeng Deng,Bin Wang. 2025

[16]Coupling no-tillage with bio-organic fertilizer strategies to regulate soil quality and microbial communities, without compromising crop yield under rainfed conditions on the Loess Plateau, China. Wang, Xiaoling,Yang, Qingxuan,Asad, Muhammad Shoaib,Yan, Zinan,Chen, Xiaoli,Zhao, Xining,Liu, Enke,Jia, Zhikuan,Siddique, Kadambot H. M.,Ren, Xiaolong. 2025

[17]Evaluation of Soil Quality and Balancing of Nitrogen Application Effects in Summer Direct-Seeded Cotton Fields Based on Minimum Dataset. Qin, Yukun,Feng, Weina,Zheng, Cangsong,Chen, Junying,Wang, Yuping,Zhang, Lijuan,Nie, Taili. 2025

[18]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

[19]Long-term cultivation of indica–japonica hybrid rice reshapes the sustainability of rice systems by simultaneously enhancing yield, nitrogen use efficiency, and soil health. Jinjia Gan,Xinyue Xu,Sheng Tang,Kefeng Han,Tao Sun,Jinzhao Ma,Xiangde Yang,Xiu Liu,Haoran Fu,Zhihao Pang,Lingli Mao,Lianghuan Wu,Qingxu Ma. 2026

[20]Biennial subsoiling with ridge-furrow planting enhances soil quality, ecosystem multifunctionality and maize yield on the Loess Plateau. Wang, Xiaoling,Yang, Qingxuan,Ji, Zhe,Li, Wenjing,Feng, Wenjing,Zhang, Peng,Zhao, Xining,Liu, Tiening,Liu, Enke,Siddique, Kadambot H. M.,Chen, Xiaoli,Jia, Zhikuan,Ren, Xiaolong. 2025

作者其他论文 更多>>